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Electrocatalytic Activity and Stability Enhancement through Preferential Deposition of Phosphide on Carbide
Author(s) -
Regmi Yagya N.,
Roy Asa,
Goenaga Gabriel A.,
McBride James R.,
Rogers Bridget. R.,
Zawodzinski Thomas A.,
Labbé Nicole,
Chmely Stephen C.
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201601477
Subject(s) - phosphide , carbide , materials science , water splitting , electrochemistry , electrocatalyst , chemical engineering , nickel , inorganic chemistry , catalysis , metallurgy , chemistry , electrode , photocatalysis , organic chemistry , engineering
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.