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[期刊论文]

Synthesis of Pt nanoparticles supported on a novel 2D bismuth tungstate/lanthanum titanate heterojunction for photoelectrocatalytic oxidation of methanol

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author:

Gao, Haifeng (Gao, Haifeng.) [1] | Zhai, Chunyang (Zhai, Chunyang.) [2] | Fu, Nianqing (Fu, Nianqing.) [3] | Unfold

Indexed by:

EI

Abstract:

The combination of different semiconductors to form a heterojunction plays an important role for exploring new visible-light-driven electrocatalysts. Herein, a two-dimensional (2D) Bi2WO6/La2Ti2O7 (LTO) heterojunction has been synthesized and to be as carrier of Pt nanoparticles. Subsequently, electrocatalytic activity and stability of the as-obtained Pt-Bi2WO6/LTO has been evaluated in methanol oxidation reaction (MOR) under the action of visible light and electricity. Results indicate that Pt-Bi2WO6/LTO sample displays excellent catalytic performance and stability with assistance from visible light. Under identical conditions, the current intensity of MOR on the Pt-Bi2WO6/LTO modified electrode is found to reach 1409 mA mg−1Pt, which is 3.92 times higher than the measured Pt-Bi2WO6 modified electrode (359.8 mA mg−1Pt). In addition, the current density of MOR on Pt-Bi2WO6/LTO electrode decreases by 2.85% after scanning for 300 cycles. Furthermore, Pt-Bi2WO6/LTO is 6.99 times more resistant to poisoning than the Pt-Bi2WO6 electrode determines by chronopotentiometry under visible light illumination. The presented results indicate that a Pt-Bi2WO6/LTO nanocomposite is a viable alternative photo-electric catalyst, providing a potential new basis for the future development of catalysts in fuel cell reactions. © 2019 Elsevier Inc.

Keyword:

Bismuth compounds Electrocatalysts Electrodes Fuel cells Heterojunctions Light Metal nanoparticles Methanol Oxidation Platinum Platinum compounds Synthesis (chemical) Tungsten compounds

Community:

  • [ 1 ] [Gao, Haifeng]School of Materials Science and Chemical Engineering, Ningbo University, Ningbo; 315211, China
  • [ 2 ] [Zhai, Chunyang]School of Materials Science and Chemical Engineering, Ningbo University, Ningbo; 315211, China
  • [ 3 ] [Zhai, Chunyang]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Fu, Nianqing]School of Materials Science and Engineering, South China University of Technology, Guangzhou; 510640, China
  • [ 5 ] [Du, Yukou]College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou; 215123, China
  • [ 6 ] [Yu, Kevin]Department of Chemistry, University of Toronto, Toronto; M5S 3H6, Canada
  • [ 7 ] [Zhu, Mingshan]School of Materials Science and Chemical Engineering, Ningbo University, Ningbo; 315211, China

Reprint 's Address:

  • [zhai, chunyang]school of materials science and chemical engineering, ningbo university, ningbo; 315211, china;;[zhai, chunyang]state key laboratory of photocatalysis on energy and environment, fuzhou university, fuzhou; 350116, china

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Source :

Journal of Colloid and Interface Science

ISSN: 0021-9797

Year: 2020

Volume: 561

Page: 338-347

8 . 1 2 8

JCR@2020

9 . 4 0 0

JCR@2023

ESI HC Threshold:160

JCR Journal Grade:1

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 27

30 Days PV: 3

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