Biomass-derived high-performance tungsten-based electrocatalysts on graphene for hydrogen evolution

Fanke Meng, Enyuan Hu, Lihua Zhang, Kotaro Sasaki, James Muckerman, Etsuko Fujita

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report a new class of highly active and stable tungsten-based catalysts to replace noble metal materials for the hydrogen evolution reaction (HER) in an acidic electrolyte. The catalyst is produced by heating an earth-abundant and low-cost mixture of ammonium tungstate, soybean powder and graphene nanoplatelets (WSoyGnP). The catalyst compound consists of tungsten carbide (W2C and WC) and tungsten nitride (WN) nanoparticles decorated on graphene nanoplatelets. The catalyst demonstrates an overpotential (η10, the potential at a current density of 10 mA cm-2) of 0.105 V, which is the smallest among tungsten-based HER catalysts in acidic media. The coupling with graphene significantly reduces the charge transfer resistance and increases the active surface area of the product, which are favorable for enhancing the HER activity. Therefore, the approach of employing biomass and other less expensive materials as precursors for the production of catalysts with high HER activity provides a new path for the design and development of efficient catalysts for the hydrogen production industry.

Original languageEnglish
Pages (from-to)18572-18577
Number of pages6
JournalJournal of Materials Chemistry A
Volume3
Issue number36
DOIs
Publication statusPublished - Aug 5 2015

Fingerprint

Tungsten
Graphite
Electrocatalysts
Graphene
Hydrogen
Biomass
Catalysts
Tungsten carbide
Hydrogen production
Precious metals
Ammonium Compounds
Nitrides
Powders
Electrolytes
Charge transfer
Current density
Earth (planet)
Nanoparticles
Heating
Costs

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Biomass-derived high-performance tungsten-based electrocatalysts on graphene for hydrogen evolution. / Meng, Fanke; Hu, Enyuan; Zhang, Lihua; Sasaki, Kotaro; Muckerman, James; Fujita, Etsuko.

In: Journal of Materials Chemistry A, Vol. 3, No. 36, 05.08.2015, p. 18572-18577.

Research output: Contribution to journalArticle

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