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author:

Guan, Guoxiang (Guan, Guoxiang.) [1] | Liu, Linchun (Liu, Linchun.) [2] | Chen, Ming (Chen, Ming.) [3] | Xia, Juan (Xia, Juan.) [4] | Wan, Chao (Wan, Chao.) [5] | Qian, Xing (Qian, Xing.) [6]

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EI

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:

Cobalt compounds Conversion efficiency Dye-sensitized solar cells Hydrogen Ion exchange Nanocatalysts Nanostructured materials Nickel compounds Prisms Transition metals

Community:

  • [ 1 ] [Guan, Guoxiang]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 2 ] [Liu, Linchun]College of Chemical Engineering, Fuzhou University, Xueyuan Road No. 2, Fuzhou; 350116, China
  • [ 3 ] [Chen, Ming]College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang; 464000, China
  • [ 4 ] [Xia, Juan]School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang; 236037, China
  • [ 5 ] [Wan, Chao]College of Chemical and Biological Engineering, Zhejiang University, Hangzhou; 310027, China
  • [ 6 ] [Qian, Xing]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

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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