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Amorphous NiWO4 nanoparticles boosting the alkaline hydrogen evolution performance of Ni3S2 electrocatalysts
Senchuan Huang1; Yuying Meng1,2; Yangfei Cao1; Fen Yao1; Zhujie He1; Xuxu Wang1; Hui Pan3; Mingmei Wu1
2020-10-05
Source PublicationApplied Catalysis B: Environmental
ISSN0926-3373
Volume274
Abstract

Heazlewoodite nickel sulfide (Ni3S2) has become attractive for electrocatalytic hydrogen evolution reaction (HER). However, strong sulfur–hydrogen bonds (S–Hads) formed on the surface of Ni3S2 greatly hinder the Hads desorption and reduce HER activity. Herein, amorphous NiWO4 nanoparticles-decorated Ni3S2 electrocatalysts (NiWO4/Ni3S2) have been constructed via a two-step hydrothermal method. The heterostructures exhibit much better HER performance than original Ni3S2 by delivering current densities of −10 and −100 mA cm−2 at low overpotentials of 136 and 274 mV, while those for Ni3S2 are 234 and 424 mV, respectively. Moreover, they display ultra-long stability of 75 h. Theoretical calculation proves the improved activity of NiWO4/Ni3S2 heterostructures is attributed to highly active interfaces between amorphous NiWO4 nanoparticles and Ni3S2 electrocatalysts. The strong electronic interaction between NiWO4 and Ni3S2 decreases the local electron density of Ni and S atoms, facilitates water adsorption on Ni-sites and optimizes hydrogen atom adsorption/desorption on adjacent S-sites with weakened S–Hads.

KeywordAmorphous Nanoparticles Hydrogen Evolution Reaction Hydrothermal Nickel Sulfide Nickel Tungstate
DOI10.1016/j.apcatb.2020.119120
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physicalengineering, Environmentalengineering, Chemical
WOS IDWOS:000541147500024
Scopus ID2-s2.0-85084806118
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Cited Times [WOS]:18   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorYuying Meng; Mingmei Wu
Affiliation1.MOE Key Laboratory of Bioinorganic and Synthetic Chemistry,School of Chemistry/School of Marine Sciences,Sun Yat-Sen University,Guangzhou/Zhuhai,510275/519082,China
2.Institute of Advanced Wear & Corrosion Resistant and Functional Materials,Jinan University,Guangzhou,510632,China
3.Institute of Applied Physics and Materials Engineering,University of Macau,Macao SAR,China
Recommended Citation
GB/T 7714
Senchuan Huang,Yuying Meng,Yangfei Cao,et al. Amorphous NiWO4 nanoparticles boosting the alkaline hydrogen evolution performance of Ni3S2 electrocatalysts[J]. Applied Catalysis B: Environmental,2020,274.
APA Senchuan Huang,Yuying Meng,Yangfei Cao,Fen Yao,Zhujie He,Xuxu Wang,Hui Pan,&Mingmei Wu.(2020).Amorphous NiWO4 nanoparticles boosting the alkaline hydrogen evolution performance of Ni3S2 electrocatalysts.Applied Catalysis B: Environmental,274.
MLA Senchuan Huang,et al."Amorphous NiWO4 nanoparticles boosting the alkaline hydrogen evolution performance of Ni3S2 electrocatalysts".Applied Catalysis B: Environmental 274(2020).
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