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Utilizing Formate as an Energy Carrier by Coupling CO 2 Electrolysis with Fuel Cell Devices
Author(s) -
Bienen Fabian,
Kopljar Dennis,
Löwe Armin,
Aßmann Pia,
Stoll Marvin,
Rößner Paul,
Wagner Norbert,
Friedrich Andreas,
Klemm Elias
Publication year - 2019
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201800212
Subject(s) - formate , electrolysis , electrochemistry , electrolysis of water , chemistry , aqueous solution , energy carrier , catalysis , power to gas , materials science , hydrogen , inorganic chemistry , electrode , organic chemistry , electrolyte
Electrochemical reduction of CO 2 to useful chemicals can change the role of CO 2 from harmful waste to a valuable feedstock. Despite a lot of progress in the alkaline electrochemical conversion of CO 2 to formate, there is still a lack of potential applications for the generated aqueous formate solution. Here, the general ability of formate to be used as an energy or hydrogen carrier is discussed and compared to well‐known energy storage chemicals. Concepts to employ formate solution as an energy carrier by combining CO 2 electrolysis with the reconversion of formate into electricity via a direct formate fuel cell or catalytic decomposition to H 2 combined with a proton exchange membrane fuel cell are demonstrated.