Original scientific paper

https://doi.org/10.15255/KUI.2017.028

Mesoporous PtSnO₂/C Catalyst with Enhanced Catalytic Activity for Ethanol Electro-oxidation

Siyu Chen ; School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang, 832 000, P.R. China
Lei Shi ; Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi, Xinjiang, 832 000, P.R. China
Liang Wang ; Shandong University of Traditional Chinese Medicine, Shandong, 250 355, P.R. China

Abstract

In this paper, we report the synthesis, characterization, and electrochemical evaluation of a mesoporous PtSnO₂/C catalyst, called PtSnO₂(M)/C, with a nominal Pt : Sn ratio of 3 : 1. Brunauer–Emmett–Teller and transmission electron microscopy characterizations showed the obvious mesoporous structure of SnO₂ in PtSnO₂(M)/C catalyst. X-ray photoelectron spectroscopy analysis exhibited the interaction between Pt and mesoporous SnO₂. Compared with Pt/C and commercial PtSnO₂/C catalysts, PtSnO₂(M)/C catalyst has a lower active site, but higher catalytic activity for ethanol electro-oxidation reaction (EOR). The enhanced activity could be attributed to Pt nanoparticles deposited on mesoporous SnO₂ that could decrease the amount of poisonous intermediates produced during EOR by the interaction between Pt and mesoporous SnO₂.


This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

ethanol electro-oxidation reaction; Pt-Sn catalyst; mesoporous SnO2; enhanced catalytic activity

Hrčak ID:

192693

URI

https://hrcak.srce.hr/192693

Publication date:

30.1.2018.

Article data in other languages: croatian

Visits: 890 *