Nickel iron diselenide for highly efficient and selective electrocatalytic conversion of methanol to formate
Li, Junshan (University of Electronic Science and Technology of China. Institute of Fundamental and Frontier Sciences)
Xing, Congcong (Institut de Recerca en Energia de Catalunya)
Zhang, Yu (Institut de Recerca en Energia de Catalunya)
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia)
Spadaro, Maria Chiara (Institut Català de Nanociència i Nanotecnologia)
Wu, Qianbao (University of Electronic Science and Technology of China)
Yi, Yunan (University of Electronic Science and Technology of China)
He, Shenglan (University of Electronic Science and Technology of China)
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Cabot, Andreu (Institució Catalana de Recerca i Estudis Avançats)
Cui, Chunhua (University of Electronic Science and Technology of China)

Data:	2021
Resum:	The electro-oxidation of methanol to formate is an interesting example of the potential use of renewable energies to add value to a biosourced chemical commodity. Additionally, methanol electro-oxidation can replace the sluggish oxygen evolution reaction when coupled to hydrogen evolution or to the electroreduction of other biomass-derived intermediates. But the cost-effective realization of these reaction schemes requires the development of efficient and low-cost electrocatalysts. Here, a noble metal-free catalyst, Ni FeSe nanorods, with a high potential for an efficient and selective methanol conversion to formate is demonstrated. At its optimum composition, NiFeSe, this diselenide is able to produce 0. 47 mmol cm h of formate at 50 mA cm with a Faradaic conversion efficiency of 99%. Additionally, this noble-metal-free catalyst is able to continuously work for over 50 000 s with a minimal loss of efficiency, delivering initial current densities above 50 mA cm and 2. 2 A mg in a 1. 0 m KOH electrolyte with 1. 0 m methanol at 1. 5 V versus reversible hydrogen electrode. This work demonstrates the highly efficient and selective methanol-to-formate conversion on Ni-based noble-metal-free catalysts, and more importantly it shows a very promising example to exploit the electrocatalytic conversion of biomass-derived chemicals.
Ajuts:	European Commission 754510 Ministerio de Ciencia e Innovación RTI2018-093996-B-C31 Ministerio de Economía y Competitividad ENE2017-85087-C3 Ministerio de Economía y Competitividad ENE2016-77798-C4-3-R Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-128
Nota:	Altres ajuts: IREC and ICN2 are funded by the CERCA Programme/Generalitat de Catalunya. Part of the present work has been performed in the framework of Universitat Autònoma de Barcelona Materials Science PhD program. J.L. is grateful to ICREA Academia program.
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Matèria:	Biomethanol ; Biorefinery ; Electrocatalysis ; Formate ; Formic acid ; Methanol oxidation reaction ; Selenide
Publicat a:	Small, Vol. 17, issue 6 (Feb. 2021) , art. 2006623, ISSN 1613-6829

DOI: 10.1002/smll.202006623

Preprint 25 p, 2.6 MB

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