skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same

Abstract

Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.

Inventors:
; ; ;
Issue Date:
Research Org.:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1172147
Patent Number(s):
8975387
Application Number:
13/052,463
Assignee:
North Carolina State University (Raleigh, NC)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08B - POLYSACCHARIDES
DOE Contract Number:  
FG36-02GO12026
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Mar 21
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Venditti, Richard A, Pawlak, Joel J, Salam, Abdus, and El-Tahlawy, Khaled Fathy. Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same. United States: N. p., 2015. Web.
Venditti, Richard A, Pawlak, Joel J, Salam, Abdus, & El-Tahlawy, Khaled Fathy. Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same. United States.
Venditti, Richard A, Pawlak, Joel J, Salam, Abdus, and El-Tahlawy, Khaled Fathy. Tue . "Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same". United States. https://www.osti.gov/servlets/purl/1172147.
@article{osti_1172147,
title = {Modified carbohydrate-chitosan compounds, methods of making the same and methods of using the same},
author = {Venditti, Richard A and Pawlak, Joel J and Salam, Abdus and El-Tahlawy, Khaled Fathy},
abstractNote = {Compositions of matter are provided that include chitosan and a modified carbohydrate. The modified carbohydrate includes a carbohydrate component and a cross linking agent. The modified carbohydrate has increased carboxyl content as compared to an unmodified counterpart carbohydrate. A carboxyl group of the modified carbohydrate is covalently bonded with an amino group of chitosan. The compositions of matter provided herein may include cross linked starch citrate-chitosan and cross linked hemicellulose citrate-chitosan, including foams thereof. These compositions yield excellent absorbency and metal chelation properties. Methods of making cross linked modified carbohydrate-chitosan compounds are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}

Patent:

Save / Share:

Works referenced in this record:

Cross-linking chitosan into UV-irradiated cellulose fibers for the preparation of antimicrobial-finished textiles
journal, July 2009


Swelling behavior of chitosan/pectin polyelectrolyte complex membranes. Effect of thermal cross-linking
journal, September 2005


Novel superabsorbent cellulose-based hydrogels crosslinked with citric acid
journal, November 2008


A Microspheric System: Hemicellulose-based Hydrogels
journal, March 2008


The antimicrobial activity of cotton fabrics treated with different crosslinking agents and chitosan
journal, June 2005


Aspects of the preparation of starch microcellular foam particles crosslinked with glutaraldehyde using a solvent exchange technique
journal, February 2007


Preparation and properties of hydrogels based on hemicellulose
journal, August 1998


Separation, characterization and hydrogel-formation of hemicellulose from aspen wood
journal, December 2000


Chitosan disrupts the barrier properties of the outer membrane of Gram-negative bacteria
journal, December 2001


Polyelectrolyte complexes of sodium alginate with chitosan or its derivatives for microcapsules
journal, January 1997


Synthesis and antimicrobial activity of a water-soluble chitosan derivative with a fiber-reactive group
journal, January 2004


Application of a fiber-reactive chitosan derivative to cotton fabric as an antimicrobial textile finish
journal, June 2004


Antibacterial action of chitosan and carboxymethylated chitosan
journal, January 2000


Carboxymethyl xylan—synthesis and detailed structure characterization
journal, May 2006


Starch Citrate: Preparation and Ion Exchange Properties
journal, January 1996


Characterization of citric acid/glycerol co-plasticized thermoplastic starch prepared by melt blending
journal, July 2007


Preparation and characterization of Maillard reacted chitosan films with hemicellulose model compounds
journal, January 2008


Polycations as outer membrane-disorganizing agents.
journal, July 1983


Cellulose esterification with fatty acids and acetic anhydride in lithium chloride/ N,N -dimethylacetamide medium
journal, February 1998


Preparation, characterization and antimicrobial activity of chitosan–Zn complex
journal, May 2004


Preparation of sugarcane bagasse hemicellulosic succinates using NBS as a catalyst
journal, September 2003


Miscibility studies of the blends of chitosan with some cellulose ethers
journal, February 2006


Synthesis and characterization of water-soluble O-succinyl-chitosan
journal, August 2003


Study on antimicrobial activity of chitosan with different molecular weights
journal, December 2003


Starch derivatives of high degree of functionalization 9: carboxymethyl starches
journal, June 2004


<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2007-01-01">January 2007</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Kiatkamjornwong, Suda</span> </li> <li> ScienceAsia, Vol. 33(s1)</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.2306/scienceasia1513-1874.2007.33(s1).039" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.2306/scienceasia1513-1874.2007.33(s1).039<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/S1381-5148(00)00038-9" target="_blank" rel="noopener noreferrer" class="name">A review of chitin and chitosan applications<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2000-11-01">November 2000</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Ravi Kumar, Majeti N. V.</span> </li> <li> Reactive and Functional Polymers, Vol. 46, Issue 1, p. 1-27</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1016/S1381-5148(00)00038-9" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1016/S1381-5148(00)00038-9<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1002/app.1995.070581213" target="_blank" rel="noopener noreferrer" class="name">Development of poly(vinyl alcohol) hydrogel for waste water cleaning. II. Treatment of N,N-dimethylformamide in waste water with poly(vinyl alcohol) gel with immobilized microorganisms<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="1995-12-19">December 1995</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Okazaki, Masaki; Hamada, Tosihiro; Fujii, Hiroaki</span> </li> <li> Journal of Applied Polymer Science, Vol. 58, Issue 12, p. 2243-2249</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1002/app.1995.070581213" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1002/app.1995.070581213<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/0144-8617(92)90019-M" target="_blank" rel="noopener noreferrer" class="name">Crosslinked xylan as an affinity adsorbent for endo-xylanases<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="1992-01-01">January 1992</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Rozie, H.; Somers, W.; Bonte, A.</span> </li> <li> Carbohydrate Polymers, Vol. 17, Issue 1, p. 19-28</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1016/0144-8617(92)90019-M" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1016/0144-8617(92)90019-M<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/j.carbpol.2003.08.005" target="_blank" rel="noopener noreferrer" class="name">Metal complexation by chitosan and its derivatives: a review<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2004-01-01">January 2004</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Varma, A. J.; Deshpande, S. V.; Kennedy, J. F.</span> </li> <li> Carbohydrate Polymers, Vol. 55, Issue 1, p. 77-93</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1016/j.carbpol.2003.08.005" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1016/j.carbpol.2003.08.005<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1111/j.1365-2621.2010.02533.x" target="_blank" rel="noopener noreferrer" class="name">Extrusion parameters related to starch/chitosan active films properties: Extrusion variables × films characteristics<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2011-02-14">February 2011</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Pelissari, Franciele M.; Yamashita, Fabio; Grossmann, Maria Victoria E.</span> </li> <li> International Journal of Food Science & Technology, Vol. 46, Issue 4</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1111/j.1365-2621.2010.02533.x" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1111/j.1365-2621.2010.02533.x<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1023/B:JMSM.0000032815.86972.5e" target="_blank" rel="noopener noreferrer" class="name">Starch–chitosan hydrogels prepared by reductive alkylation cross-linking<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2004-07-01">July 2004</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Baran, E. T.; Mano, J. F.; Reis, R. L.</span> </li> <li> Journal of Materials Science: Materials in Medicine, Vol. 15, Issue 7</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1023/B:JMSM.0000032815.86972.5e" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1023/B:JMSM.0000032815.86972.5e<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/j.progpolymsci.2006.03.002" target="_blank" rel="noopener noreferrer" class="name">Polymer blends and composites from renewable resources<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2006-06-01">June 2006</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Yu, Long; Dean, Katherine; Li, Lin</span> </li> <li> Progress in Polymer Science, Vol. 31, Issue 6, p. 576-602</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1016/j.progpolymsci.2006.03.002" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1016/j.progpolymsci.2006.03.002<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/j.progpolymsci.2009.07.001" target="_blank" rel="noopener noreferrer" class="name">Thermal processing of starch-based polymers<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2009-12-01">December 2009</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Liu, Hongsheng; Xie, Fengwei; Yu, Long</span> </li> <li> Progress in Polymer Science, Vol. 34, Issue 12, p. 1348-1368</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1016/j.progpolymsci.2009.07.001" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1016/j.progpolymsci.2009.07.001<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1002/star.19790311102" target="_blank" rel="noopener noreferrer" class="name">Crosslinked Cationic and Anionic Starches: Preparation and Use in Heavy Metal Removal<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="1979-01-01">January 1979</span></small> </h2> <ul id="references-list" class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#557B2D;"> Rayford, W. E.; Wing, R. E.</span> </li> <li> Starch - Stärke, Vol. 31, Issue 11</li> <li> <span class="text-muted related-url"><a href="https://doi.org/10.1002/star.19790311102" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1002/star.19790311102<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> </div> <ul class="pagination"></ul> </div> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a href="" class="reference-type-filter tab-nav" data-tab="biblio-references" data-filter="type" data-pattern="*"><span class="fa fa-angle-right"></span> All References</a></li> <li class="small" style="margin-left:.75em; text-transform:capitalize;"><a href="" class="reference-type-filter tab-nav" data-tab="biblio-references" data-filter="type" data-pattern="journal"><span class="fa fa-angle-right"></span> journal<small class="text-muted"> (37)</small></a></li> </ul> <div style="margin-top:2em;"> <form class="pure-form small text-muted reference-search"> <fieldset> <input id="ref-search" class="search form-control pure-input-1" placeholder="Search" style="margin-bottom:10px;"><label for="ref-search" class="hidden">Ref Search</label> <legend></legend> <label for="ref-sort-name" class="d-block" style="margin-left:1em; font-weight:normal; display:block;"><input id="ref-sort-name" type="radio" class="sort" name="references-sort" data-sort="name" style="position:relative;top:2px;"> Sort by title</label> <label for="ref-sort-date" class="d-block" style="margin-left:1em; font-weight:normal; display:block;"><input id="ref-sort-date" type="radio" class="sort" name="references-sort" data-sort="date" data-order="desc" style="position:relative;top:2px;"> Sort by date</label> <div class="text-left" style="margin-top:1.5em;margin-left:1em;"> <a href="" class="filter-clear clearfix" title="Clear filter / sort" style="font-weight:normal; float:none;">[ × clear filter / sort ]</a> </div> </fieldset> </form> </div> </div> </div> </section> <section id="biblio-related" class="tab-content tab-content-sec" data-tab="biblio"> <div class="row"> <div class="col-sm-9 order-sm-9"> <section id="biblio-similar" class="tab-content tab-content-sec active" data-tab="related"> <div class="padding"> <p class="lead text-muted" style="font-size: 18px; margin-top:0px;">Similar Records in DOE Patents and OSTI.GOV collections:</p> <aside> <ul class="item-list" itemscope itemtype="http://schema.org/ItemList" style="padding-left:0; list-style-type: none;"> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="0" /><div class="item-info"> <h2 class="title" itemprop="name headline"> <a href="/doepatents/biblio/872966" itemprop="url">Hydroxymethyl phosphine compounds for use as diagnostic and therapeutic pharmaceuticals and method of making same</a> </h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Patent</small><span class="authors"> Katti, Kattesh V [Columbia, MO]; Karra, Srinivasa Rao [Columbia, MO]; Berning, Douglas E [Columbia, MO]; <span class="author">...</span> <span class="text-muted pubdata"></span> </span> </div> <div class="abstract">A compound and method of making a compound for use as a diagnostic or therapeutic pharmaceutical comprises at least one functionalized hydroxyalkyl phosphine donor group and one or more sulfur or nitrogen donor and a metal combined with the ligand.</div><div class="small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link" href="https://www.osti.gov/servlets/purl/872966" title="Link to document media" target="_blank" rel="noopener" data-ostiid="872966" data-product-type="Patent" data-product-subtype="">Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="1" /><div class="item-info"> <h2 class="title" itemprop="name headline"> <a href="/doepatents/biblio/872073" itemprop="url">Hydroxymethyl phosphine compounds for use as diagnostic and therapeutic pharmaceuticals and method of making same</a> </h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Patent</small><span class="authors"> Katti, Kattesh V [Columbia, MO]; Karra, Srinivasa Rao [Columbia, MO]; Berning, Douglas E [Columbia, MO]; <span class="author">...</span> <span class="text-muted pubdata"></span> </span> </div> <div class="abstract">A compound and method of making a compound for use as a diagnostic or therapeutic pharmaceutical comprises at least one functionalized hydroxyalkyl phosphine donor group and one or more sulfur or nitrogen donor and a metal combined with the ligand.</div><div class="small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link" href="https://www.osti.gov/servlets/purl/872073" title="Link to document media" target="_blank" rel="noopener" data-ostiid="872073" data-product-type="Patent" data-product-subtype="">Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="2" /><div class="item-info"> <h2 class="title" itemprop="name headline"> <a href="/doepatents/biblio/1735146" itemprop="url">Dual conductor surface modified SOFC cathode particles and methods of making same</a> </h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Patent</small><span class="authors"> Huang, Kevin; Roeder, Jeffrey F.; Zeberoff, Anthony F.<span class="text-muted pubdata"></span> </span> </div> <div class="abstract">A novel method to produce ALD films disposed on powders is disclosed. Examples include the formation of a cobalt doped zirconia (CDZ), hafnia, and cobalt doped hafnia (CDH) films on lanthanum strontium cobalt iron oxide (LSCF) powder for solid oxide fuel cell cathodes. The coated powders are sintered into porous cathodes that have utility for preventing the migration of cations in the powder to the surface of the sintered cathode and/or other performance enhancing attributes.</div><div class="small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link" href="https://www.osti.gov/servlets/purl/1735146" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1735146" data-product-type="Patent" data-product-subtype="">Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="3" /><div class="item-info"> <h2 class="title" itemprop="name headline"> <a href="/doepatents/biblio/1015153" itemprop="url">Composite catalysts supported on modified carbon substrates and methods of making the same</a> </h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Patent</small><span class="authors"> Popov, Branko N [Columbia, SC]; Subramanian, Nalini [Kennesaw, GA]; Colon-Mercado, Hector R [Columbia, SC]<span class="text-muted pubdata"></span> </span> </div> <div class="abstract">A method of producing a composite carbon catalyst is generally disclosed. The method includes oxidizing a carbon precursor (e.g., carbon black). Optionally, nitrogen functional groups can be added to the oxidized carbon precursor. Then, the oxidized carbon precursor is refluxed with a non-platinum transitional metal precursor in a solution. Finally, the solution is pyrolyzed at a temperature of at least about 500.degree. C.</div><div class="small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link" href="https://www.osti.gov/servlets/purl/1015153" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1015153" data-product-type="Patent" data-product-subtype="">Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="4" /><div class="item-info"> <h2 class="title" itemprop="name headline"> <a href="/doepatents/biblio/1175680" itemprop="url">Compounds for novel proton conducting membranes and methods of making same</a> </h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Patent</small><span class="authors"> Poling, Steven A.; Martin, Steve W.; Sutherland, Jacob T.<span class="text-muted pubdata"></span> </span> </div> <div class="abstract">The present invention provides new compounds for use in proton exchange membranes which are able to operate in a wide variety of temperature ranges, including in the intermediate temperature range of about 100.degree. C. to 700.degree. C., and new and improved methods of making these compounds. The present invention also provides new and improved methods for making chalcogenide compounds, including, but not limited to, non-protonated sulfide, selenide and telluride compounds. In one embodiment, the proton conductivity of the compounds is between about 10.sup.-8 S/cm and 10.sup.-1 S/cm within a temperature range of between about -50 and 500.degree. C.</div><div class="small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link" href="https://www.osti.gov/servlets/purl/1175680" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1175680" data-product-type="Patent" data-product-subtype="">Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> </ul> </aside> </div> </section> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a class="tab-nav disabled" data-tab="related" style="color: #636c72 !important; opacity: 1;"><span class="fa fa-angle-right"></span> Similar Records</a></li> </ul> </div> </div> </section> </div></div> </div> </div> </section> <footer class="" style="background-color:#f9f9f9; /* padding-top: 0.5rem; */"> <div class="footer-minor"> <div class="container"> <hr class="footer-separator" /> <div class="text-center" style="margin-top:1.25rem;"> <div class="pure-menu pure-menu-horizontal"> <ul class="pure-menu-list" id="footer-org-menu"> <li class="pure-menu-item"> <a href="https://energy.gov" target="_blank" rel="noopener noreferrer"> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" class="sprite sprite-footer-us-doe-min" alt="U.S. Department of Energy" /> </a> </li> <li class="pure-menu-item"> <a href="https://www.energy.gov/science/office-science" target="_blank" rel="noopener noreferrer"> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" class="sprite sprite-footer-office-of-science-min" alt="Office of Science" /> </a> </li> <li class="pure-menu-item"> <a href="/"> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" class="sprite sprite-footer-osti-min" alt="Office of Scientific and Technical Information" /> </a> </li> </ul> </div> </div> <div class="text-center small" style="margin-top:0.5em;margin-bottom:2.0rem;"> <div class="pure-menu pure-menu-horizontal"> <ul class="pure-menu-list"> <li class="pure-menu-item"><a href="https://www.osti.gov/disclaim" target="_blank" rel="noopener noreferrer" class="pure-menu-link"><span class="fa fa-institution"></span> Website Policies <span class="hidden-xs" >/ Important Links</span></a></li> <li class="pure-menu-item"><a href="/doepatents/contact" class="pure-menu-link"><span class="fa fa-comments-o"></span> Contact Us</a></li> <li class="d-block d-md-none"></li> <li class="pure-menu-item"><a href="https://www.facebook.com/ostigov" target="_blank" rel="noopener noreferrer" class="pure-menu-link social"><span class="fa fa-facebook" style=""></span></a></li> <li class="pure-menu-item"><a href="https://twitter.com/OSTIgov" target="_blank" rel="noopener noreferrer" class="pure-menu-link social"><span class="fa fa-twitter" style=""></span></a></li> <li class="pure-menu-item"><a href="https://www.youtube.com/user/ostigov" target="_blank" rel="noopener noreferrer" class="pure-menu-link social"><span class="fa fa-youtube-play" style=""></span></a></li> </ul> </div> </div> </div> </div> </footer> <link href="/doepatents/css/doepatents.fonts.210406.0046.css" rel="stylesheet"> <script src="/doepatents/js/doepatents.210406.0046.js"></script><noscript></noscript> <script defer src="/doepatents/js/doepatents.biblio.210406.0046.js"></script><noscript></noscript> <script async type="text/javascript" src="/doepatents/js/Universal-Federated-Analytics-Min.js?agency=DOE" id="_fed_an_ua_tag"></script><noscript></noscript> </body> <!-- DOE Patents v.210406.0046 --> </html>