Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction | Zendy

Eric J. Popczun | Zendy; James R. McKone | Zendy; Carlos G. Read | Zendy; Adam J. Biacchi | Zendy; Alex M. Wiltrout | Zendy; Nathan S. Lewis | Zendy; Raymond E. Schaak | Zendy

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Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction

Author(s) -

Eric J. Popczun,

James R. McKone,

Carlos G. Read,

Adam J. Biacchi,

Alex M. Wiltrout,

Nathan S. Lewis,

Raymond E. Schaak

Publication year - 2013

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja403440e

Subject(s) - phosphide , electrocatalyst , chemistry , catalysis , nickel , electrolysis , nanoparticle , exchange current density , inorganic chemistry , electrolysis of water , chemical engineering , hydrogen , yield (engineering) , noble metal , electrochemistry , organic chemistry , materials science , metallurgy , electrode , engineering , electrolyte , tafel equation

Nanoparticles of nickel phosphide (Ni2P) have been investigated for electrocatalytic activity and stability for the hydrogen evolution reaction (HER) in acidic solutions, under which proton exchange membrane-based electrolysis is operational. The catalytically active Ni2P nanoparticles were hollow and faceted to expose a high density of the Ni2P(001) surface, which has previously been predicted based on theory to be an active HER catalyst. The Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.

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