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Title: Electrochemical device for converting carbon dioxide to a reaction product

Abstract

An electrochemical device converts carbon dioxide to a reaction product. The device includes an anode and a cathode, each comprising a quantity of catalyst. The anode and cathode each has reactant introduced thereto. A polymer electrolyte membrane is interposed between the anode and the cathode. At least a portion of the cathode catalyst is directly exposed to gaseous carbon dioxide during electrolysis. The average current density at the membrane is at least 20 mA/cm.sup.2, measured as the area of the cathode gas diffusion layer that is covered by catalyst, and CO selectivity is at least 50% at a cell potential of 3.0 V. In some embodiments, the polymer electrolyte membrane comprises a polymer in which a constituent monomer is (p-vinylbenzyl)-R, where R is selected from the group consisting of imidazoliums, pyridiniums and phosphoniums. In some embodiments, the polymer electrolyte membrane is a Helper Membrane comprising a polymer containing an imidazolium ligand, a pyridinium ligand, or a phosphonium ligand.

Inventors:
; ; ;
Issue Date:
Research Org.:
Dioxide Materials, Inc. Boca Raton, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1330700
Patent Number(s):
9481939
Application Number:
14/704,934
Assignee:
Dioxide Materials, Inc. (Boca Raton, FL)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
AR0000345; SC0004453
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 May 05
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 30 DIRECT ENERGY CONVERSION

Citation Formats

Masel, Richard I., Chen, Qingmei, Liu, Zengcai, and Kutz, Robert. Electrochemical device for converting carbon dioxide to a reaction product. United States: N. p., 2016. Web.
Masel, Richard I., Chen, Qingmei, Liu, Zengcai, & Kutz, Robert. Electrochemical device for converting carbon dioxide to a reaction product. United States.
Masel, Richard I., Chen, Qingmei, Liu, Zengcai, and Kutz, Robert. Tue . "Electrochemical device for converting carbon dioxide to a reaction product". United States. https://www.osti.gov/servlets/purl/1330700.
@article{osti_1330700,
title = {Electrochemical device for converting carbon dioxide to a reaction product},
author = {Masel, Richard I. and Chen, Qingmei and Liu, Zengcai and Kutz, Robert},
abstractNote = {An electrochemical device converts carbon dioxide to a reaction product. The device includes an anode and a cathode, each comprising a quantity of catalyst. The anode and cathode each has reactant introduced thereto. A polymer electrolyte membrane is interposed between the anode and the cathode. At least a portion of the cathode catalyst is directly exposed to gaseous carbon dioxide during electrolysis. The average current density at the membrane is at least 20 mA/cm.sup.2, measured as the area of the cathode gas diffusion layer that is covered by catalyst, and CO selectivity is at least 50% at a cell potential of 3.0 V. In some embodiments, the polymer electrolyte membrane comprises a polymer in which a constituent monomer is (p-vinylbenzyl)-R, where R is selected from the group consisting of imidazoliums, pyridiniums and phosphoniums. In some embodiments, the polymer electrolyte membrane is a Helper Membrane comprising a polymer containing an imidazolium ligand, a pyridinium ligand, or a phosphonium ligand.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

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