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  Effect of magnetic field on the hydrogen evolution activity using non-magnetic Weyl semimetal catalysts

Gupta, U., Rajamathi, C. R., Kumar, N., Li, G., Sun, Y., Shekhar, C., et al. (2020). Effect of magnetic field on the hydrogen evolution activity using non-magnetic Weyl semimetal catalysts. Dalton Transactions, 49, 3398-3402. doi:10.1039/d0dt00050g.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-FA9C-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-C29B-0
Genre: Journal Article

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2020
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 Creators:
Gupta, Uttam1, Author              
Rajamathi, Catherine R.1, Author              
Kumar, Nitesh1, Author              
Li, Guowei1, Author              
Sun, Yan1, Author              
Shekhar, Chandra2, Author              
Felser, Claudia3, Author              
Rao, C. N. R.4, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
4External Organizations, ou_persistent22              

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Free keywords: article, catalyst, hydrogen evolution, magnetic field, room temperature
 Abstract: An external switch to control the kinetics of the reaction by manipulating the participating electrons could be interesting as it can alter the rate of the reaction without affecting the reaction pathway. The magnetic field, like a switch, is non-invasive, tunable, and clean; it can also alter the electrons in a material. We study the effect of an applied magnetic field on the hydrogen evolution activity of the NbP family of Weyl semimetals because of their extremely high mobility and large magnetoresistance at room temperature and good hydrogen evolution properties. We find that by applying a magnetic field of ∼3500 G, the hydrogen evolution activity of NbP increases by up to 95%. The other members of this Weyl semimetal family (viz. TaP, NbAs, and TaAs) also exhibit increased hydrogen evolution activity. Thus, our observations suggest an interplay of electronic property, magnetic field, and catalytic activity in this class of compounds, providing evidence of manipulating the catalytic performance of topological materials through the application of a magnetic field.

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Language(s): eng - English
 Dates: 2020-03-012020-03-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1039/d0dt00050g
 Degree: -

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Title: Dalton Transactions
  Abbreviation : Dalton Trans.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 49 Sequence Number: - Start / End Page: 3398 - 3402 Identifier: ISSN: 1477-9226
CoNE: https://pure.mpg.de/cone/journals/resource/954925269323