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author:

Du, Changchao (Du, Changchao.) [1] | Zhan, Xiadan (Zhan, Xiadan.) [2] | Li, Changrong (Li, Changrong.) [3] | Yu, Han (Yu, Han.) [4] (Scholars:俞瀚) | Yu, Yan (Yu, Yan.) [5]

Indexed by:

EI PKU CSCD

Abstract:

The Pt/CoSn(OH)6 and Pt/ZnSn(OH)6 complex catalysts were prepared using CoSn(OH)6 and ZnSn(OH)6 hollow nanocubes by an ultrasound process with ascorbic acid as the soft reductant, respectively, and demonstrate excellent performance towards the methanol oxidation reaction (MOR). The Pt/CoSn(OH)6 and Pt/ZnSn(OH)6 catalysts exhibit higher mass activities (1095.6 mA/mg and 699.5 mA/mg, respectively) compared to Pt/C (594.6 mA/mg) catalyst towards methanol oxidation. XRD, SEM, TEM, XPS and electrochemical measurements were employed to explore the relationships of the crystal structure and the properties of catalysts. CO-stripping experiment results indicate that the hydroxide supports facilitates the removal of CO on Pt surface. The increased activity and resistance of CO poisoning for Pt/CoSn(OH)6 and Pt/ZnSn(OH)6 catalysts can be attributed to the strong interaction between the support (Co, Zn)Sn(OH)6 and Pt in the catalysts and the large amount of hydroxyls on the support surface. The higher relative intensity of Pt in the (Co, Zn)Sn(OH)6 catalysts also contributes to the higher MOR activity. The (Co, Zn)Sn(OH)6 towards methanol catalytic electro-oxidation can disclose the influence of the support structure on the catalytic activity and will be helpful for the development and application of complex catalysts in direct methanol fuel cells (DMFCs). © 2018, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.

Keyword:

Ascorbic acid Catalyst activity Catalyst poisoning Catalytic oxidation Crystal structure Direct methanol fuel cells (DMFC) Electrochemical oxidation Electrooxidation Methanol Methanol fuels Platinum Stripping (removal) Tin compounds Zinc compounds

Community:

  • [ 1 ] [Du, Changchao]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 2 ] [Du, Changchao]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 3 ] [Du, Changchao]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350002, China
  • [ 4 ] [Zhan, Xiadan]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 5 ] [Zhan, Xiadan]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 6 ] [Zhan, Xiadan]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350002, China
  • [ 7 ] [Li, Changrong]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 8 ] [Li, Changrong]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 9 ] [Li, Changrong]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350002, China
  • [ 10 ] [Yu, Han]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 11 ] [Yu, Han]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 12 ] [Yu, Han]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350002, China
  • [ 13 ] [Yu, Yan]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 14 ] [Yu, Yan]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 15 ] [Yu, Yan]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350002, China

Reprint 's Address:

  • 俞瀚

    [yu, han]key laboratory of eco-materials advanced technology, fuzhou university, fuzhou; 350002, china;;[yu, han]state key laboratory of photocatalysis on energy and environment, fuzhou university, fuzhou; 350002, china;;[yu, han]college of materials science and engineering, fuzhou university, fuzhou; 350002, china

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Source :

Acta Materiae Compositae Sinica

ISSN: 1000-3851

Year: 2018

Issue: 1

Volume: 35

Page: 173-179

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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