Selective methanol-to-formate electrocatalytic conversion on branched nickel carbide
Li, Junshan (University of Electronic Science and Technology of China. Molecular Electrochemistry Laboratory)
Wei, Ruilin (Southwest Minzu University. School of Chemistry and Environment)
Wang, Xiang (Institut de Recerca en Energia de Catalunya)
Zuo, Yong (Institut de Recerca en Energia de Catalunya)
Han, Xu (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química)
Yang, Yaoyue (Southwest Minzu University. School of Chemistry and Environment)
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Cui, Chunhua (University of Electronic Science and Technology of China. Molecular Electrochemistry Laboratory)

Data:	2020
Resum:	A methanol economy will be favored by the availability of low-cost catalysts able to selectively oxidize methanol to formate. This selective oxidation would allow extraction of the largest part of the fuel energy while concurrently producing a chemical with even higher commercial value than the fuel itself. Herein, we present a highly active methanol electrooxidation catalyst based on abundant elements and with an optimized structure to simultaneously maximize interaction with the electrolyte and mobility of charge carriers. In situ infrared spectroscopy combined with nuclear magnetic resonance spectroscopy showed that branched nickel carbide particles are the first catalyst determined to have nearly 100 % electrochemical conversion of methanol to formate without generating detectable CO as a byproduct. Electrochemical kinetics analysis revealed the optimized reaction conditions and the electrode delivered excellent activities. This work provides a straightforward and cost-efficient way for the conversion of organic small molecules and the first direct evidence of a selective formate reaction pathway.
Ajuts:	Ministerio de Economía y Competitividad ENE2016-77798-C4-3-R Ministerio de Economía y Competitividad ENE2017-85087-C3 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-128 Ministerio de Economía y Competitividad SEV-2013-0295 Ministerio de Ciencia e Innovación RTI2018-093996-B-C31
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Matèria:	Branched particles ; Formic acid ; In situ infrared spectroscopy ; Methanol oxidation ; Nickel carbide
Publicat a:	Angewandte Chemie (International ed. Internet), Vol. 59, issue 47 (Nov. 2020) , p. 20826-20830, ISSN 1521-3773

DOI: 10.1002/anie.202004301

Preprint 14 p, 763.7 KB

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