Formic acid and methanol electro-oxidation and counter hydrogen production using nano high entropy catalyst

Journal article


Kumar, N., Nellaiappan, S., Kumar, R., Malviya, K.D., Pradeep, K.G., Singh, A.K., Sharma, S., Tiwary, C.S. and Biswas, K. (2020). Formic acid and methanol electro-oxidation and counter hydrogen production using nano high entropy catalyst. Materials Today Energy. 16, p. 100393. https://doi.org//10.1016/j.mtener.2020.100393
AuthorsKumar, N., Nellaiappan, S., Kumar, R., Malviya, K.D., Pradeep, K.G., Singh, A.K., Sharma, S., Tiwary, C.S. and Biswas, K.
Abstract

Renewable harvesting of clean energy using the benefits of multi-metallic catalytic materials of high
entropy alloy (HEA, equimolar CueAgeAuePtePd) from formic acid with minimum energy input has
been achieved in the present investigation. The synergistic effect of pristine elements in the multimetallic
HEA drives the electro-oxidation reaction towards non-carbonaceous pathway. The atomistic
based simulations based on DFT rationalize the distinct lowering of the d-band center for the individual
atoms in the HEA as compared to the pristine counterparts. Further this catalytic activity of the HEA has
also been extended to methanol electro-oxidation to show the unique capability of the novel catalyst.
The nanostructured HEA, prepared using a combination of casting and cryomilling techniques can further
be utilized as the fuel cell anode in the direct formic acid/methanol fuel cells (DFFE).

Year2020
JournalMaterials Today Energy
Journal citation16, p. 100393
PublisherElsevier
ISSN2468-6069
Digital Object Identifier (DOI)https://doi.org//10.1016/j.mtener.2020.100393
Publication dates
Online07 Mar 2020
Print01 Jun 2020
Publication process dates
Accepted05 Feb 2020
Deposited24 Feb 2021
Accepted author manuscript
License
File Access Level
Open
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