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

Title: Processing of monolayer materials via interfacial reactions

Abstract

A method of forming and processing of graphene is disclosed based on exposure and selective intercalation of the partially graphene-covered metal substrate with atomic or molecular intercalation species such as oxygen (O.sub.2) and nitrogen oxide (NO.sub.2). The process of intercalation lifts the strong metal-carbon coupling and restores the characteristic Dirac behavior of isolated monolayer graphene. The interface of graphene with metals or metal-decorated substrates also provides for controlled chemical reactions based on novel functionality of the confined space between a metal surface and a graphene sheet.

Inventors:
;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1132268
Patent Number(s):
8,728,433
Application Number:
13/468,592
Assignee:
Brookhaven Science Associates, LLC (Upton, NY) BNL
DOE Contract Number:
AC02-98CH10886
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 May 10
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sutter, Peter Werner, and Sutter, Eli Anguelova. Processing of monolayer materials via interfacial reactions. United States: N. p., 2014. Web.
Sutter, Peter Werner, & Sutter, Eli Anguelova. Processing of monolayer materials via interfacial reactions. United States.
Sutter, Peter Werner, and Sutter, Eli Anguelova. 2014. "Processing of monolayer materials via interfacial reactions". United States. doi:. https://www.osti.gov/servlets/purl/1132268.
@article{osti_1132268,
title = {Processing of monolayer materials via interfacial reactions},
author = {Sutter, Peter Werner and Sutter, Eli Anguelova},
abstractNote = {A method of forming and processing of graphene is disclosed based on exposure and selective intercalation of the partially graphene-covered metal substrate with atomic or molecular intercalation species such as oxygen (O.sub.2) and nitrogen oxide (NO.sub.2). The process of intercalation lifts the strong metal-carbon coupling and restores the characteristic Dirac behavior of isolated monolayer graphene. The interface of graphene with metals or metal-decorated substrates also provides for controlled chemical reactions based on novel functionality of the confined space between a metal surface and a graphene sheet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2014,
month = 5
}

Patent:

Save / Share:
  • Methods and techniques are described for reversibly binding charged biological particles in a fluid medium to an electrode surface. The methods are useful in a variety of applications. The biological materials may include microbes, proteins, and viruses. The electrode surface may consist of reversibly electroactive materials such as polyvinylferrocene, silicon-linked ferrocene or quinone.
  • A process is disclosed for sectioning by etching of monolayers and multilayers using an RIE technique with fluorine-based chemistry. In one embodiment, the process uses Reactive Ion Etching (RIE) alone or in combination with Inductively Coupled Plasma (ICP) using fluorine-based chemistry alone and using sufficient power to provide high ion energy to increase the etching rate and to obtain deeper anisotropic etching. In a second embodiment, a process is provided for sectioning of WSi.sub.2/Si multilayers using RIE in combination with ICP using a combination of fluorine-based and chlorine-based chemistries and using RF power and ICP power. According to the secondmore » embodiment, a high level of vertical anisotropy is achieved by a ratio of three gases; namely, CHF.sub.3, Cl.sub.2, and O.sub.2 with RF and ICP. Additionally, in conjunction with the second embodiment, a passivation layer can be formed on the surface of the multilayer which aids in anisotropic profile generation.« less
  • Methods and techniques are described for reversibly binding charged biological particles in a fluid medium to an electrode surface. The methods are useful in a variety of applications. The biological materials may include microbes, proteins, and viruses. The electrode surface may consist of reversibly electroactive materials such as polyvinylferrocene, silicon-linked ferrocene or quinone.
  • A method is provided for reversibly binding charged biological particles in a fluid medium to an electrode surface. The method comprises treating (e.g., derivatizing) the electrode surface with an electrochemically active material; connecting the electrode to an electrical potential; and exposing the fluid medium to the electrode surface in a manner such that the charged particles become adsorbed on the electrode surface.
  • A continuous process is described for the carbonylation of ..cap alpha..-olefin having up to six carbon atoms for the preparation of a carboxylic acid or ester thereof and for employing the exothermic heat of the reaction to heat the product mixture for subsequent separation of at least one component from the product mixture. The process consists of: (a) reacting a mixture of carbon monoxide, ..cap alpha..-olefin of up to six carbon atoms, and an acid selected from the group consisting of an aqueous hydrogen fluoride solution of more than 20 weight percent hydrogen fluoride, and a substantially anhydrous acid selectedmore » from the group consisting of hydrogen fluoride and hydrogen chloride under pressure and at a low temperature under conditions whereby a product mixture and exothermic heat at pressure up to 10,000 psia and at temperature below about 100/sup 0/ C., (b) reacting the product mixture of step (a) with a hydroxy-containing compound selected from the group consisting of water and an alcohol having up to six carbon atoms under conditions whereby additional exothermic heat is produced and a carboxylic acid is produced when the hydroxy compound is water and under conditions whereby an ester is produced when the hydroxy compound is an alcohol, (c) adiabatically expanding the product mixture of step (a) to below the temperature and pressure of the reaction conditions of step (a), (d) heating the adiabatically expanded product mixture of step (b) with the exothermic heat from reaction of the mixture of the reactants reacting in step (a) by passing the heat to the adiabatically expanded product mixture, and (e) transferring the heated adiabatically expanded product mixture of step (c) to a separation processing step and repeating steps (a), (b), (c), (d), and (e) under conditions whereby a continuous process results.« less