Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 570, Issue -, Pages 205-211Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.02.090
Keywords
Trimetallic nanocrystals; Hollow nanostructures; Multipods; Hydrogen evolution reaction; Electrocatalysis
Categories
Funding
- Zhejiang Public Welfare Technology Application Research Project [LGG19B050001, LGG18E010001]
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Alkaline hydrogen evolution reaction (HER) electrocatalysts with high catalytic activity and long-term durability are of significance for sustainable energy applications. Herein, we prepared trimetallic PtNiCo hollow alloyed 3D multipods (HAMPs) with rough surfaces by an effective one-pot solvothermal strategy coupled with acid etching, as evidenced by a series of characterizations. By virtue of the trimetals and unique structures, the PtNiCo HAMPs exhibited excellent HER performance in 1.0 M KOH electrolyte with a low overpotential (eta, 20 mV) and small Tafel slope (46.3 mV dec(-1)), superior to homemade PtNi HAMPs, PtCo nanocrystals (NCs) and commercial Pt/C catalysts. This study provides some constructive guidelines for synthesis of advanced hollow multimetallic catalysts in energy systems. (C) 2020 Elsevier Inc. All rights reserved.
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