Electrocatalytic Activity and Stability Enhancement through Preferential Deposition of Phosphide on Carbide

Yagya N. Regmi, Asa Roy, Gabriel A. Goenaga, James R. McBride, Bridget R. Rogers, Thomas A. Zawodzinski, Nicole Labbé, Stephen C. Chmely

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Phosphides and carbides are among the most promising families of materials based on earth-abundant elements for renewable energy conversion and storage technologies such as electrochemical water splitting, batteries, and capacitors. Nickel phosphide and molybdenum carbide in particular have been extensively investigated for electrochemical water splitting. However, a composite of the two compounds has not been explored. Here, we demonstrate preferential deposition of nickel phosphide on molybdenum carbide in the presence of carbon by using a hydrothermal synthesis method. We employ the hydrogen evolution reaction in acid and base to analyze the catalytic activity of phosphide-deposited carbide. The composite material also shows superior electrochemical stability in comparison to unsupported phosphide. We anticipate that the enhanced electrochemical activity and stability of carbide deposited with phosphide will stimulate investigations into the preparation of other carbide–phosphide composite materials.

Original languageEnglish (US)
Pages (from-to)1054-1061
Number of pages8
JournalChemCatChem
Volume9
Issue number6
DOIs
StatePublished - Mar 20 2017

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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    Regmi, Y. N., Roy, A., Goenaga, G. A., McBride, J. R., Rogers, B. R., Zawodzinski, T. A., Labbé, N., & Chmely, S. C. (2017). Electrocatalytic Activity and Stability Enhancement through Preferential Deposition of Phosphide on Carbide. ChemCatChem, 9(6), 1054-1061. https://doi.org/10.1002/cctc.201601477