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author:

Guan, G. (Guan, G..) [1] | Liu, L. (Liu, L..) [2] | Chen, M. (Chen, M..) [3] | Xia, J. (Xia, J..) [4] | Wan, C. (Wan, C..) [5] | Qian, X. (Qian, X..) [6] (Scholars:钱兴)

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Abstract:

Herein, a facile assembly strategy and ion exchange reaction coupled with the following selenization treatment have been developed for the synthesis of V-doped transition metal nickel-cobalt selenide prism with hierarchical yolk-shelled structure (named as VSe2-NiCoSex), which have the outer shell of Ni–Co–VSe2 with the Ni–CoSe2 inner core. Notably, VSe2-NiCoSex presented prominent bifunctional electrocatalytic performances and excellent conductivity toward both dye-sensitized solar cells (DSSCs) and hydrogen evolution reactions (HERs) for water electrolysis. As for DSSCs, VSe2-NiCoSex electrode exhibited a remarkable power conversion efficiency (PCE) of 9.50%, Rct of 1.09 Ω and Epp of 231 mV than that of Pt (8.29%, 4.25 Ω and 414 mV) under the same testing conditions. Besides, VSe2-NiCoSex as HER catalyst delivers a lower overpotential of 84.3 mV at the current density of 10 mA cm−2 and a small Tafel slope of 49.1 mV dec−1 in 0.5 M H2SO4. © 2023 Hydrogen Energy Publications LLC

Keyword:

Bifunctional electrochemical catalyst Dye-sensitized solar cell Hierarchical yolk-shelled nano-prism Hydrogen evolution reaction Ni–Co precursor VSe2-NiCoSex

Community:

  • [ 1 ] [Guan G.]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou, 350116, China
  • [ 2 ] [Liu L.]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou, 350116, China
  • [ 3 ] [Chen M.]College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, China
  • [ 4 ] [Xia J.]School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, 236037, China
  • [ 5 ] [Wan C.]College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
  • [ 6 ] [Qian X.]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou, 350116, China

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Source :

International Journal of Hydrogen Energy

ISSN: 0360-3199

Year: 2023

Issue: 82

Volume: 48

Page: 31955-31967

8 . 1

JCR@2023

8 . 1 0 0

JCR@2023

ESI HC Threshold:35

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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