In:
Advanced Energy Materials, Wiley, Vol. 8, No. 13 ( 2018-05)
Abstract:
A cost effective hydrogen evolution reaction (HER) catalyst that does not use precious metallic elements is a crucial demand for environment‐benign energy production. The family of earth‐abundant transition metal compounds of nitrides, carbides, chalcogenides, and phosphides is one of the promising candidates for such a purpose, particularly in acidic conditions. However, its catalytic performance is still needed to be enhanced through novel material designs and crystalline engineering. Herein, a chemically and electronically coupled transition metal phosphosulfide/N‐doped carbon nanotubes (NCNT) hybrid electrocatalyst is fabricated via a two‐step synthesis. The uniquely designed synthesis leads to the material morphology featuring a core–shell structure, in which the crystalline metal phosphide core is surrounded by an amorphous phosphosulfide nanoshell. Notably, due to the favorable modification of chemical composition and surface properties, core–shell CoP@PS/NCNT exhibits the noticeable HER activity of approximately −80 mV @ −10 mA cm −2 with excellent durability, which is one of the highest active nonnoble metal electrocatalysts ever reported thus far.
Type of Medium:
Online Resource
ISSN:
1614-6832
,
1614-6840
DOI:
10.1002/aenm.201702806
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
2594556-7
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