Citation: HUANG Ming-Hui, JIN Bi-Yao, ZHAO Lian-Hua, SUN Shi-Gang. Preparation and Characterization of Pt-Ni-SnO₂/C for Ethanol Oxidation Reaction[J]. Acta Physico-Chimica Sinica, ;2017, 33(3): 563-572. doi: 10.3866/PKU.WHXB201612072 shu

Preparation and Characterization of Pt-Ni-SnO₂/C for Ethanol Oxidation Reaction

1.
Department of Chemistry, College of Science, Yanbian University, Yanji 133002, Jilin Province, P. R. China;
2.
State Key Laboratory of Physical Chemistry of Solid Surfaces of Xiamen University, Xiamen 361005, Fujian Province, P. R. China

Received Date: 12 October 2016
Revised Date: 7 December 2016

Fund Project: The project was supported by the Jilin Provincial Science and Technology Project of China (20120741) and Opening Foundation of State Key Laboratory of Physical Chemistry of Solid Surface of Xiamen University,China (201407)

A series of Pt/C, Pt-Ni_1/3/C, Pt-SnO₂/C and Pt-Ni_x-SnO₂/C (x=1/4, 1/3, 2/3, 1) anode electro-catalysts have been synthesized by an improved Bönnemann method. The crystal structure, surface morphology and surface electronic structure were characterizated by X-ray diffraction (XRD), high resolution transmission electron microscope (HR-TEM) and X-ray photoelectron spectroscopy (XPS). The electro-catalytic activities were characterizated by linear sweep voltammetry (LSV) and amperometric current density-time (j-t) curve techniques for ethanol oxidation reaction (EOR). In situ spectroelectrochemical studies have been used to identity adsorbed reaction intermediates and products (in situ Fourier transform infrared spectroscopy, FT-IR). XRD and HR-TEM analysis revealed two phases in the ternary Pt-Ni-SnO₂/C catalyst:Pt-Ni alloys and SnO₂. XPS results show that the electronic structure of the Pt in Pt-Ni_1/3-SnO₂/C might be changed due to the addition of Ni. The activity of Pt-Ni-SnO₂/C for EOR was found to be higher than that of Pt/C, Pt-Ni/C and Pt-SnO₂/C catalysts. The incorporation of Ni and SnO₂ did not significantly improve C-C bond breaking for complete oxidation of ethanol, but the synergy under the low potential (0.1 V) to strengthen the further oxidation of acetaldehyde, generate the acetic acid.
- Platinum,
- Nickel,
- Stannic oxide,
- Ethanol electricoxidation
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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and Characterization of Pt-Ni-SnO2/C for Ethanol Oxidation Reaction

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通讯作者: 陈斌, bchen63@163.com

Preparation and Characterization of Pt-Ni-SnO₂/C for Ethanol Oxidation Reaction