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Development and Optimization of Gas Diffusion Electrodes for Electrochemical CO2 Reduction at High Current Density

Kopljar, Dennis and Wagner, Norbert and Klemm, Elias (2016) Development and Optimization of Gas Diffusion Electrodes for Electrochemical CO2 Reduction at High Current Density. 1. Jahrestagung der Fachgruppe Chemie und Energie, 6.-7. Oktober 2016, Jena.

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Abstract

The electrochemical reduction of CO2 to valuable compounds is a promising approach for its substantial utilization and the storage of electricity in chemical form. At present, the main challenges impeding technical realization are i) low production rates due to mass transport limitations deriving from the low solubility of CO2 in the electrolyte, ii) high overpotentials and poor energetic efficiency, necessitating development of more active catalysts, as well as iii) the demonstration of its continuous production which combines the above with low ohmic losses and long-term stability. Furthermore, hydrogen evolution occurs in the same potential range, and becomes dominating at current densities above 10 mA∙cm 2 on conventional metallic electrodes when diffusion of CO2 to the electrode surface becomes rate-determining.

Item URL in elib:https://elib.dlr.de/106585/
Document Type:Conference or Workshop Item (Poster)
Title:Development and Optimization of Gas Diffusion Electrodes for Electrochemical CO2 Reduction at High Current Density
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kopljar, DennisUni StuttgartUNSPECIFIED
Wagner, Norbertnorbert.wagner (at) dlr.deUNSPECIFIED
Klemm, Eliaselias.klemm (at) itc.uni-stuttgart.deUNSPECIFIED
Date:6 October 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CO2 Reduktion Gasdiffusionselektrode Ameisensäure
Event Title:1. Jahrestagung der Fachgruppe Chemie und Energie
Event Location:Jena
Event Type:national Conference
Event Dates:6.-7. Oktober 2016
Organizer:GDCh
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrochemical Energy Storage
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (Batteries) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Wagner, Dr.rer.nat. Norbert
Deposited On:13 Oct 2016 10:15
Last Modified:31 Jul 2019 20:03

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