Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation

Yang, Yutong; Han, Yang; Pang, Ruizhi; Ho, W. S. Winston

doi:10.3390/membranes10110333

Title: Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO₂/H₂ Separation

Abstract

Amine-containing mixed-matrix membranes incorporated with amino-functionalized multi-walled carbon nanotubes (AF-MWNTs) were synthesized for CO₂/H₂ separation based on the facilitated transport mechanism. AF-MWNTs were chosen primarily as the mechanical reinforcing filler to enhance the membrane stability. At 107 °C and 0.2-MPa feed pressure, the membrane incorporated with 10 wt.% AF-MWNTs showed a CO₂ permeability of 3196 Barrers and a CO₂/H₂ selectivity of 205. At the higher feed pressure of 1.5 MPa, owing to the carrier saturation phenomenon, the same membrane exhibited reduced transport performance with a CO₂ permeability of 776 Barrers and a CO₂/H₂ selectivity of 31. These separation performances at both the low and high feed pressures were well above the theoretical upper bound. Furthermore, the incorporation of 10 wt.% AF-MWNTs led to a significant improvement on membrane stability. The transport performance and selective layer thickness of this membrane maintained for 100 h, which suggested that the incorporation of AF-MWNTs improved the resistance to membrane compaction upon a high feed pressure. Therefore, this work is considered as one of the crucial steps to enable the application of facilitated transport membranes to high-pressure gas processing such as syngas purification.

Authors:

^[1];

^[1]; Pang, Ruizhi ^[1]; Ho, W. S. Winston ^[1]

The Ohio State Univ., Columbus, OH (United States)

Publication Date:: Tue Nov 10 00:00:00 EST 2020

Research Org.:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1762493

Grant/Contract Number:: FE0031635

Resource Type:: Accepted Manuscript

Journal Name:: Membranes

Additional Journal Information:: Journal Volume: 10; Journal Issue: 11; Journal ID: ISSN 2077-0375

Publisher:: MDPI

Country of Publication:: United States

Language:: English

Subject:: 59 BASIC BIOLOGICAL SCIENCES; Carbon dioxide separation; Mixed-matrix membrane; Amino-functionalized multi-walled carbon nanotube; Membrane compaction

Citation Formats


                    Yang, Yutong, Han, Yang, Pang, Ruizhi, and Ho, W. S. Winston. Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation.  United States: N. p., 2020. 
Web.  doi:10.3390/membranes10110333.

Copy to clipboard


                    Yang, Yutong, Han, Yang, Pang, Ruizhi, & Ho, W. S. Winston. Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation.  United States.  https://doi.org/10.3390/membranes10110333

Copy to clipboard


                    Yang, Yutong, Han, Yang, Pang, Ruizhi, and Ho, W. S. Winston. Tue .  
"Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation".  United States.  https://doi.org/10.3390/membranes10110333.  https://www.osti.gov/servlets/purl/1762493.

Copy to clipboard


                    
@article{osti_1762493,

  title        = {Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation},

  author       = {Yang, Yutong and Han, Yang and Pang, Ruizhi and Ho, W. S. Winston},

  abstractNote = {Amine-containing mixed-matrix membranes incorporated with amino-functionalized multi-walled carbon nanotubes (AF-MWNTs) were synthesized for CO2/H2 separation based on the facilitated transport mechanism. AF-MWNTs were chosen primarily as the mechanical reinforcing filler to enhance the membrane stability. At 107 °C and 0.2-MPa feed pressure, the membrane incorporated with 10 wt.% AF-MWNTs showed a CO2 permeability of 3196 Barrers and a CO2/H2 selectivity of 205. At the higher feed pressure of 1.5 MPa, owing to the carrier saturation phenomenon, the same membrane exhibited reduced transport performance with a CO2 permeability of 776 Barrers and a CO2/H2 selectivity of 31. These separation performances at both the low and high feed pressures were well above the theoretical upper bound. Furthermore, the incorporation of 10 wt.% AF-MWNTs led to a significant improvement on membrane stability. The transport performance and selective layer thickness of this membrane maintained for 100 h, which suggested that the incorporation of AF-MWNTs improved the resistance to membrane compaction upon a high feed pressure. Therefore, this work is considered as one of the crucial steps to enable the application of facilitated transport membranes to high-pressure gas processing such as syngas purification.},

  doi          = {10.3390/membranes10110333},

  journal      = {Membranes},

  number       = 11,

  volume       = 10,

  place        = {United States},

  year         = {Tue Nov 10 00:00:00 EST 2020},

  month        = {Tue Nov 10 00:00:00 EST 2020}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.3390/membranes10110333

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Facilitated transport of olefins in Ag+-containing polymer membranes
journal, May 1994

Ho, W. S.; Dalrymple, D. C.
Journal of Membrane Science, Vol. 91, Issue 1-2
DOI: 10.1016/0376-7388(94)00008-5

XPS and AFM characterization of aminosilanes with different numbers of bonding sites on a silicon wafer: XPS and AFM characterization of aminosilanes on a silicon wafer
journal, October 2013

Jakša, G.; Štefane, B.; Kovač, J.
Surface and Interface Analysis, Vol. 45, Issue 11-12
DOI: 10.1002/sia.5311

Basis of Permeability/Selectivity Tradeoff Relations in Polymeric Gas Separation Membranes
journal, January 1999

Freeman, Benny D.
Macromolecules, Vol. 32, Issue 2
DOI: 10.1021/ma9814548

Carbon dioxide capture with membranes at an IGCC power plant
journal, February 2012

Merkel, Tim C.; Zhou, Meijuan; Baker, Richard W.
Journal of Membrane Science, Vol. 389
DOI: 10.1016/j.memsci.2011.11.012

Carbon nanotube reinforced PVAm/PVA blend FSC nanocomposite membrane for CO2/CH4 separation
journal, July 2014

Deng, Liyuan; Hägg, May-Britt
International Journal of Greenhouse Gas Control, Vol. 26
DOI: 10.1016/j.ijggc.2014.04.018

Enhanced gas permeability by fabricating functionalized multi-walled carbon nanotubes and polyethersulfone nanocomposite membrane
journal, March 2011

Ge, Lei; Zhu, Zhonghua; Rudolph, Victor
Separation and Purification Technology, Vol. 78, Issue 1
DOI: 10.1016/j.seppur.2011.01.024

Polyelectrolyte-salt blend membranes for acid gas separations
journal, August 1997

Quinn, R.; Laciak, D. V.; Pez, G. P.
Journal of Membrane Science, Vol. 131, Issue 1-2
DOI: 10.1016/S0376-7388(97)00025-2

CO ₂ capture and H ₂ purification: Prospects for CO ₂ -selective membrane processes
journal, March 2013

Ramasubramanian, Kartik; Zhao, Yanan; Winston Ho, W. S.
AIChE Journal, Vol. 59, Issue 4
DOI: 10.1002/aic.14078

Infrared Spectral Evidence for the Etching of Carbon Nanotubes: Ozone Oxidation at 298 K
journal, March 2000

Mawhinney, Douglas B.; Naumenko, Viktor; Kuznetsova, Anya
Journal of the American Chemical Society, Vol. 122, Issue 10
DOI: 10.1021/ja994094s

Deflection behavior of carbon nanotube reinforced polymer composite beams using first order shear deformation theory
journal, January 2018

Pramod Kumar, P.; Subba Rao, V. V.; Sarath Chandra, S.
Materials Today: Proceedings, Vol. 5, Issue 13
DOI: 10.1016/j.matpr.2018.08.165

Novel concepts for CO2 capture
journal, July 2004

Dijkstra, J. W.; Jansen, D.
Energy, Vol. 29, Issue 9-10
DOI: 10.1016/j.energy.2004.03.084

Optimizing carbon nanotube-reinforced polysulfone ultrafiltration membranes through carboxylic acid functionalization
journal, November 2013

de Lannoy, Charles-François; Soyer, Elif; Wiesner, Mark R.
Journal of Membrane Science, Vol. 447
DOI: 10.1016/j.memsci.2013.07.023

Nanotube-reinforced facilitated transport membrane for CO2/N2 separation with vacuum operation
journal, December 2018

Han, Yang; Wu, Dongzhu; Ho, W. S. Winston
Journal of Membrane Science, Vol. 567
DOI: 10.1016/j.memsci.2018.08.061

Plasticization-Enhanced Hydrogen Purification Using Polymeric Membranes
journal, February 2006

Lin, H.
Science, Vol. 311, Issue 5761
DOI: 10.1126/science.1118079

XPS and NEXAFS studies of aliphatic and aromatic amine species on functionalized surfaces
journal, September 2009

Graf, Nora; Yegen, Eda; Gross, Thomas
Surface Science, Vol. 603, Issue 18
DOI: 10.1016/j.susc.2009.07.029

CO₂-selective polymeric membranes containing amines in crosslinked poly(vinyl alcohol)
journal, December 2006

Zou, Jian; Ho, W. S. Winston
Journal of Membrane Science, Vol. 286, Issue 1-2, p. 310-321
DOI: 10.1016/j.memsci.2006.10.013

Facilitated transport of CO₂ in novel PVAm/PVA blend membrane
journal, September 2009

Deng, Liyuan; Kim, Taek-Joong; Hägg, May-Britt
Journal of Membrane Science, Vol. 340, Issue 1-2, p. 154-163
DOI: 10.1016/j.memsci.2009.05.019

Crosslinked polyvinylalcohol–polysiloxane/fumed silica mixed matrix membranes containing amines for CO2/H2 separation
journal, February 2011

Xing, Rong; Ho, W. S. Winston
Journal of Membrane Science, Vol. 367, Issue 1-2
DOI: 10.1016/j.memsci.2010.10.039

Specific surface area of carbon nanotubes and bundles of carbon nanotubes
journal, April 2001

Peigney, A.; Laurent, Ch.; Flahaut, E.
Carbon, Vol. 39, Issue 4, p. 507-514
DOI: 10.1016/S0008-6223(00)00155-X

Dispersion and packing of carbon nanotubes
journal, November 1998

Shaffer, M. S. P.; Fan, X.; Windle, A. H.
Carbon, Vol. 36, Issue 11
DOI: 10.1016/S0008-6223(98)00130-4

Synthesis and characterisation of sterically stabilised polypyrrole particles using a chemically reactive poly(vinyl amine)-based stabiliser
journal, May 2012

Morgan, M.; Fielding, L. A.; Armes, S. P.
Colloid and Polymer Science, Vol. 291, Issue 1
DOI: 10.1007/s00396-012-2678-y

Cellulose nitrate as a binding energy reference in N(1s) XPS studies of nitrogen-containing organic molecules
journal, October 1990

Beard, Bruce C.
Applied Surface Science, Vol. 45, Issue 3
DOI: 10.1016/0169-4332(90)90005-K

Multiwalled carbon nanotube mixed matrix membranes containing amines for high pressure CO2/H2 separation
journal, June 2014

Zhao, Yanan; Jung, Benson T.; Ansaloni, Luca
Journal of Membrane Science, Vol. 459
DOI: 10.1016/j.memsci.2014.02.022

Influence of temperature on the upper bound: Theoretical considerations and comparison with experimental results
journal, September 2010

Rowe, Brandon W.; Robeson, Lloyd M.; Freeman, Benny D.
Journal of Membrane Science, Vol. 360, Issue 1-2
DOI: 10.1016/j.memsci.2010.04.047

Quantification of Silane Molecules on Oxidized Silicon: Are there Options for a Traceable and Absolute Determination?
journal, September 2015

Dietrich, P. M.; Streeck, C.; Glamsch, S.
Analytical Chemistry, Vol. 87, Issue 19
DOI: 10.1021/acs.analchem.5b02846

Physical and chemical characteristics of multiwalled carbon nanotubes functionalized with aminosilane and its influence on the properties of natural rubber composites
journal, July 2007

Shanmugharaj, A.; Bae, J.; Lee, K.
Composites Science and Technology, Vol. 67, Issue 9
DOI: 10.1016/j.compscitech.2006.10.021

Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites
journal, July 2009

Kathi, John; Rhee, Kyong-Yop; Lee, Joong Hee
Composites Part A: Applied Science and Manufacturing, Vol. 40, Issue 6-7
DOI: 10.1016/j.compositesa.2009.04.001

Highly active and stable Ni/Ce–ZrO2 catalyst for H2 production from methane
journal, March 2002

Roh, H.
Journal of Molecular Catalysis A: Chemical, Vol. 181, Issue 1-2
DOI: 10.1016/S1381-1169(01)00358-2

Structural characterization of carboxylated multi-walled carbon nanotubes
journal, July 2008

Lee, Geon-Woong; Kim, Jungsoo; Yoon, Jinhwan
Thin Solid Films, Vol. 516, Issue 17, p. 5781-5784
DOI: 10.1016/j.tsf.2007.10.071

Adsorption and diffusion of carbon dioxide and nitrogen through single-walled carbon nanotube membranes
journal, February 2006

Skoulidas, Anastasios I.; Sholl, David S.; Johnson, J. Karl
The Journal of Chemical Physics, Vol. 124, Issue 5
DOI: 10.1063/1.2151173

Additional XPS studies on the degradation of poly(methyl methacrylate) and polystyrene nanocomposites
journal, January 2004

Du, Jianxin; Wang, Jianqi; Su, Shengpei
Polymer Degradation and Stability, Vol. 83, Issue 1
DOI: 10.1016/S0141-3910(03)00198-8

The properties of hydrogen as fuel tomorrow in sustainable energy system for a cleaner planet
journal, July 2005

Momirlan, M.; Veziroglu, T.
International Journal of Hydrogen Energy, Vol. 30, Issue 7
DOI: 10.1016/j.ijhydene.2004.10.011

Carbon Dioxide-Selective Membranes for High-Pressure Synthesis Gas Purification
journal, November 2011

Bai, He; Ho, W. S. Winston
Industrial & Engineering Chemistry Research, Vol. 50, Issue 21
DOI: 10.1021/ie2007592

XPS Study on the Use of 3-Aminopropyltriethoxysilane to Bond Chitosan to a Titanium Surface
journal, June 2007

Martin, Holly J.; Schulz, Kirk H.; Bumgardner, Joel D.
Langmuir, Vol. 23, Issue 12
DOI: 10.1021/la063284v

Facilitated transport membranes containing amino-functionalized multi-walled carbon nanotubes for high-pressure CO2 separations
journal, September 2015

Ansaloni, Luca; Zhao, Yanan; Jung, Benson T.
Journal of Membrane Science, Vol. 490
DOI: 10.1016/j.memsci.2015.03.097

Recent advances in polymeric membranes for CO2 capture
journal, November 2018

Han, Yang; Ho, W. S. Winston
Chinese Journal of Chemical Engineering, Vol. 26, Issue 11
DOI: 10.1016/j.cjche.2018.07.010

Permselectivity of a PA6 membrane for the separation of a compressed CO2/H2 gas mixture at elevated pressures
journal, September 1999

Härtel, G.
Journal of Membrane Science, Vol. 162, Issue 1-2
DOI: 10.1016/S0376-7388(99)00066-6

CO ₂ -Selective Membranes Containing Sterically Hindered Amines for CO ₂ /H ₂ Separation
journal, September 2012

Zhao, Yanan; Ho, W. S. Winston
Industrial & Engineering Chemistry Research, Vol. 52, Issue 26
DOI: 10.1021/ie301397m

High-molecular-weight polyvinylamine/piperazine glycinate membranes for CO2 capture from flue gas
journal, September 2016

Chen, Yuanxin; Ho, W. S. Winston
Journal of Membrane Science, Vol. 514
DOI: 10.1016/j.memsci.2016.05.005

Collagen-carbon nanotube composite materials as scaffolds in tissue engineering
journal, January 2005

MacDonald, Rebecca A.; Laurenzi, Brendan F.; Viswanathan, Gunaranjan
Journal of Biomedical Materials Research Part A, Vol. 74A, Issue 3
DOI: 10.1002/jbm.a.30386

Similar Records in DOE PAGES and OSTI.GOV collections:

Facilitated Transport Membranes with Tunable Amine-CO₂ Chemistry for CO₂/H₂ Separation

Conference Han, Yang ; Ho, W.S. Winston

CO₂-selective, amine-containing facilitated transport membranes are of great interest for syngas purification since high-pressure H₂ can be retained upon CO₂ removal. A variety of amine-containing polymers have shown decent chemical and thermal stability at aggressive conditions, but their CO₂/H₂ separation properties are largely limited by the hydrostatic compaction and severe carrier saturation associated with the high syngas pressure. Herein, we report a new approach to enhance the CO₂ permeability by manipulating the steric hindrance of the amine carriers. A series of α-aminoacids with different alkyl or hydroxyethyl substituents are deprotonated by 2-(1-piperazinyl)ethylamine, leading to nonvolatile amine carriers with different degreesmore »« less
Full Text Available
New sterically hindered polyvinylamine-containing membranes for CO₂ capture from flue gas

Journal Article Chen, Ting-Yu ; Deng, Xuepeng ; Lin, Li-Chiang ; ... - Journal of Membrane Science

Amine-containing facilitated transport membranes can have both high permeability and selectivity due to the reversible reaction between CO₂ and amino groups for effective carbon capture from flue gas. In this study, we have developed an improved method for the synthesis of high-molecular-weight sterically hindered polyvinylamine (PVAm) as the new fixed-site carrier in thin-film composite membranes for CO₂ capture. Commercially available PVAm was N-monomethylated into poly-N-methyl-N-vinylamine (PVAm-CH₃) using the stepwise reductive amination with a highly polar fluorinated alcohol as the solvent to enhance the equilibrium shift to the formation of the imine intermediate. The method prevented over-alkylation, resulting in the increasedmore »« less
https://doi.org/10.1016/j.memsci.2021.120195

Full Text Available
Development of Carbon Molecular Sieves Hollow Fiber Membranes based on Polybenzimidazole Doped with Polyprotic Acids with Superior H₂/CO₂ Separation Properties (Final Report)

Technical Report Lin, Haiqing ; Leiqing, Hu ; Bui, Vinh ; ...

The goal of this project was to develop a highly efficient membrane-based process to capture CO₂ from coal-derived syngas with 95% CO₂ purity, achieving the cost of electricity (COE) 30% below the baseline capture approaches (i.e., Selexol process) when coupled with the advancement in other areas of the power generation facility. Our core approach is based on high-permeance hollow fiber membranes (HFMs) with superior H₂/CO₂ separation properties at the syngas process conditions, which can then be further utilized to design membrane reactors for process intensification of H₂ production and purification and CO₂ capture. Three organizations with complementary skills collaborated tomore »« less
https://doi.org/10.2172/1876358

Full Text Available
Mixed-Matric Membranes for CO2 and H2 Gas Separations Using Metal-Organic Framework and Mesoporus Hybrid Silicas

Technical Report Musselman, Inga ; Balkus, Jr, Kenneth ; Ferraris, John

In this work, we have investigated the separation performance of polymer-based mixed-matrix membranes containing metal-organic frameworks and mesoporous hybrid silicas. The MOF/Matrimid{reg_sign} and MOP-18/Matrimid{reg_sign} membranes exhibited improved dispersion and mechanical strength that allowed high additive loadings with reduced aggregation, as is the case of the 80 wt% MOP-18/Matrimid{reg_sign} and the 80% (w/w) Cu-MOF/Matrimid{reg_sign} membranes. Membranes with up to 60% (w/w) ZIF-8 content exhibited similar mechanical strength and improved dispersion. The H{sub 2}/CO{sub 2} separation properties of MOF/Matrimid{reg_sign} mixed-matrix membranes was improved by either keeping the selectivity constant and increasing the permeability (MOF-5, Cu-MOF) or by improving both selectivity and permeabilitymore »« less
https://doi.org/10.2172/945031

Full Text Available
Amine-functionalized (Al) MIL-53/VTEC™ mixed-matrix membranes for H₂/CO₂ mixture separations at high pressure and high temperature

Journal Article Perez, Edson V. ; Kalaw, Grace J.D. ; Ferraris, John P. ; ... - Journal of Membrane Science

In this report VTEC™ PI-1388 and 20 wt% (Al) NH₂-MIL-53/VTEC™ PI-1388 mixed-matrix membranes (MMMs) with different thicknesses were tested for gas permeation of H2 and CO₂ from 5 to 30 bar and from 35 to 300 °C. 50/50 H₂/CO₂ mixtures were also tested at 30 bar and 250 °C with stage cuts that ranged from 0.05 to 1. Gas permeation data show that the affinity of (Al) NH₂-MIL-53 for VTEC™ PI-1388 is strong enough to perform gas separations under these conditions. At 30 bar and at temperatures above 200 °C, the performance of the MMMs for H₂/CO₂ separation improved significantlymore »« less
Cited by 20
https://doi.org/10.1016/j.memsci.2017.02.003

Full Text Available

Similar Records

Title: Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO2/H2 Separation

Abstract

Citation Formats

Facilitated transport of olefins in Ag+-containing polymer membranes journal, May 1994

XPS and AFM characterization of aminosilanes with different numbers of bonding sites on a silicon wafer: XPS and AFM characterization of aminosilanes on a silicon wafer journal, October 2013

Basis of Permeability/Selectivity Tradeoff Relations in Polymeric Gas Separation Membranes journal, January 1999

Carbon dioxide capture with membranes at an IGCC power plant journal, February 2012

Carbon nanotube reinforced PVAm/PVA blend FSC nanocomposite membrane for CO2/CH4 separation journal, July 2014

Enhanced gas permeability by fabricating functionalized multi-walled carbon nanotubes and polyethersulfone nanocomposite membrane journal, March 2011

Polyelectrolyte-salt blend membranes for acid gas separations journal, August 1997

CO 2 capture and H 2 purification: Prospects for CO 2 -selective membrane processes journal, March 2013

Infrared Spectral Evidence for the Etching of Carbon Nanotubes: Ozone Oxidation at 298 K journal, March 2000

Deflection behavior of carbon nanotube reinforced polymer composite beams using first order shear deformation theory journal, January 2018

Novel concepts for CO2 capture journal, July 2004

Optimizing carbon nanotube-reinforced polysulfone ultrafiltration membranes through carboxylic acid functionalization journal, November 2013

Nanotube-reinforced facilitated transport membrane for CO2/N2 separation with vacuum operation journal, December 2018

Plasticization-Enhanced Hydrogen Purification Using Polymeric Membranes journal, February 2006

XPS and NEXAFS studies of aliphatic and aromatic amine species on functionalized surfaces journal, September 2009

CO2-selective polymeric membranes containing amines in crosslinked poly(vinyl alcohol) journal, December 2006

Facilitated transport of CO2 in novel PVAm/PVA blend membrane journal, September 2009

Crosslinked polyvinylalcohol–polysiloxane/fumed silica mixed matrix membranes containing amines for CO2/H2 separation journal, February 2011

Specific surface area of carbon nanotubes and bundles of carbon nanotubes journal, April 2001

Dispersion and packing of carbon nanotubes journal, November 1998

Synthesis and characterisation of sterically stabilised polypyrrole particles using a chemically reactive poly(vinyl amine)-based stabiliser journal, May 2012

Cellulose nitrate as a binding energy reference in N(1s) XPS studies of nitrogen-containing organic molecules journal, October 1990

Multiwalled carbon nanotube mixed matrix membranes containing amines for high pressure CO2/H2 separation journal, June 2014

Influence of temperature on the upper bound: Theoretical considerations and comparison with experimental results journal, September 2010

Quantification of Silane Molecules on Oxidized Silicon: Are there Options for a Traceable and Absolute Determination? journal, September 2015

Physical and chemical characteristics of multiwalled carbon nanotubes functionalized with aminosilane and its influence on the properties of natural rubber composites journal, July 2007

Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites journal, July 2009

Highly active and stable Ni/Ce–ZrO2 catalyst for H2 production from methane journal, March 2002

Structural characterization of carboxylated multi-walled carbon nanotubes journal, July 2008

Adsorption and diffusion of carbon dioxide and nitrogen through single-walled carbon nanotube membranes journal, February 2006

Additional XPS studies on the degradation of poly(methyl methacrylate) and polystyrene nanocomposites journal, January 2004

The properties of hydrogen as fuel tomorrow in sustainable energy system for a cleaner planet journal, July 2005

Carbon Dioxide-Selective Membranes for High-Pressure Synthesis Gas Purification journal, November 2011

XPS Study on the Use of 3-Aminopropyltriethoxysilane to Bond Chitosan to a Titanium Surface journal, June 2007

Facilitated transport membranes containing amino-functionalized multi-walled carbon nanotubes for high-pressure CO2 separations journal, September 2015

Recent advances in polymeric membranes for CO2 capture journal, November 2018

Permselectivity of a PA6 membrane for the separation of a compressed CO2/H2 gas mixture at elevated pressures journal, September 1999

CO 2 -Selective Membranes Containing Sterically Hindered Amines for CO 2 /H 2 Separation journal, September 2012

High-molecular-weight polyvinylamine/piperazine glycinate membranes for CO2 capture from flue gas journal, September 2016

Collagen-carbon nanotube composite materials as scaffolds in tissue engineering journal, January 2005

Title: Amine-Containing Membranes with Functionalized Multi-Walled Carbon Nanotubes for CO₂/H₂ Separation

Facilitated transport of olefins in Ag+-containing polymer membranes
journal, May 1994

XPS and AFM characterization of aminosilanes with different numbers of bonding sites on a silicon wafer: XPS and AFM characterization of aminosilanes on a silicon wafer
journal, October 2013

Basis of Permeability/Selectivity Tradeoff Relations in Polymeric Gas Separation Membranes
journal, January 1999

Carbon dioxide capture with membranes at an IGCC power plant
journal, February 2012

Carbon nanotube reinforced PVAm/PVA blend FSC nanocomposite membrane for CO2/CH4 separation
journal, July 2014

Enhanced gas permeability by fabricating functionalized multi-walled carbon nanotubes and polyethersulfone nanocomposite membrane
journal, March 2011

Polyelectrolyte-salt blend membranes for acid gas separations
journal, August 1997

CO ₂ capture and H ₂ purification: Prospects for CO ₂ -selective membrane processes
journal, March 2013

Infrared Spectral Evidence for the Etching of Carbon Nanotubes: Ozone Oxidation at 298 K
journal, March 2000

Deflection behavior of carbon nanotube reinforced polymer composite beams using first order shear deformation theory
journal, January 2018

Novel concepts for CO2 capture
journal, July 2004

Optimizing carbon nanotube-reinforced polysulfone ultrafiltration membranes through carboxylic acid functionalization
journal, November 2013

Nanotube-reinforced facilitated transport membrane for CO2/N2 separation with vacuum operation
journal, December 2018

Plasticization-Enhanced Hydrogen Purification Using Polymeric Membranes
journal, February 2006

XPS and NEXAFS studies of aliphatic and aromatic amine species on functionalized surfaces
journal, September 2009

CO₂-selective polymeric membranes containing amines in crosslinked poly(vinyl alcohol)
journal, December 2006

Facilitated transport of CO₂ in novel PVAm/PVA blend membrane
journal, September 2009

Crosslinked polyvinylalcohol–polysiloxane/fumed silica mixed matrix membranes containing amines for CO2/H2 separation
journal, February 2011

Specific surface area of carbon nanotubes and bundles of carbon nanotubes
journal, April 2001

Dispersion and packing of carbon nanotubes
journal, November 1998

Synthesis and characterisation of sterically stabilised polypyrrole particles using a chemically reactive poly(vinyl amine)-based stabiliser
journal, May 2012

Cellulose nitrate as a binding energy reference in N(1s) XPS studies of nitrogen-containing organic molecules
journal, October 1990

Multiwalled carbon nanotube mixed matrix membranes containing amines for high pressure CO2/H2 separation
journal, June 2014

Influence of temperature on the upper bound: Theoretical considerations and comparison with experimental results
journal, September 2010

Quantification of Silane Molecules on Oxidized Silicon: Are there Options for a Traceable and Absolute Determination?
journal, September 2015

Physical and chemical characteristics of multiwalled carbon nanotubes functionalized with aminosilane and its influence on the properties of natural rubber composites
journal, July 2007

Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites
journal, July 2009

Highly active and stable Ni/Ce–ZrO2 catalyst for H2 production from methane
journal, March 2002

Structural characterization of carboxylated multi-walled carbon nanotubes
journal, July 2008

Adsorption and diffusion of carbon dioxide and nitrogen through single-walled carbon nanotube membranes
journal, February 2006

Additional XPS studies on the degradation of poly(methyl methacrylate) and polystyrene nanocomposites
journal, January 2004

The properties of hydrogen as fuel tomorrow in sustainable energy system for a cleaner planet
journal, July 2005

Carbon Dioxide-Selective Membranes for High-Pressure Synthesis Gas Purification
journal, November 2011

XPS Study on the Use of 3-Aminopropyltriethoxysilane to Bond Chitosan to a Titanium Surface
journal, June 2007

Facilitated transport membranes containing amino-functionalized multi-walled carbon nanotubes for high-pressure CO2 separations
journal, September 2015

Recent advances in polymeric membranes for CO2 capture
journal, November 2018

Permselectivity of a PA6 membrane for the separation of a compressed CO2/H2 gas mixture at elevated pressures
journal, September 1999

CO ₂ -Selective Membranes Containing Sterically Hindered Amines for CO ₂ /H ₂ Separation
journal, September 2012

High-molecular-weight polyvinylamine/piperazine glycinate membranes for CO2 capture from flue gas
journal, September 2016

Collagen-carbon nanotube composite materials as scaffolds in tissue engineering
journal, January 2005