Ternary PtSnRh-SnO2 nanoclusters: Synthesis and electroactivity for ethanol oxidation fuel cell reaction

Wenxin Du; Qi Wang; Carlo A. Lascala; Lihua Zhang; Dong Su; Anatoly I. Frenkel; Virendra K. Mathur; Xiaowei Teng

doi:10.1039/c0jm04358c

Ternary PtSnRh-SnO₂ nanoclusters: Synthesis and electroactivity for ethanol oxidation fuel cell reaction

Wenxin Du
, Qi Wang
, Carlo A. Lascala
, Lihua Zhang
, Dong Su
, Anatoly I. Frenkel
, Virendra K. Mathur
, Xiaowei Teng

Materials Science and Engineering

University of New Hampshire
University of Delaware
Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

Carbon supported ternary Pt₅₂Sn_(36-x)Rh ₁₂-Sn_xO_2x electrocatalysts with the average diameter of 2.8 ± 0.5 nm were synthesized using a Polyol process followed by thermal treatment. Several techniques including high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) were used to identify the coexistence of homogeneously distributed Pt/Sn/Rh random alloy and non-alloyed SnO₂ throughout the catalyst. The Pt₅₂Sn_(36-x)Rh ₁₂-Sn_xO_2x catalyst showed a superior long-term activity and stability towards ethanol oxidation than the commercial Pt catalyst. Our data of ternary Pt/Sn/Rh catalysts with different chemical compositions and crystalline structures also indicated that the superior performance of Pt₅₂Sn_(36-x)Rh₁₂-Sn _xO_2x might result from the electronic effect of the Pt/Sn/Rh random alloy.

Original language	English
Pages (from-to)	8887-8892
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	21
Issue number	24
DOIs	https://doi.org/10.1039/c0jm04358c
State	Published - Jun 28 2011

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title = "Ternary PtSnRh-SnO2 nanoclusters: Synthesis and electroactivity for ethanol oxidation fuel cell reaction",

abstract = "Carbon supported ternary Pt52Sn(36-x)Rh 12-SnxO2x electrocatalysts with the average diameter of 2.8 ± 0.5 nm were synthesized using a Polyol process followed by thermal treatment. Several techniques including high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) were used to identify the coexistence of homogeneously distributed Pt/Sn/Rh random alloy and non-alloyed SnO2 throughout the catalyst. The Pt52Sn(36-x)Rh 12-SnxO2x catalyst showed a superior long-term activity and stability towards ethanol oxidation than the commercial Pt catalyst. Our data of ternary Pt/Sn/Rh catalysts with different chemical compositions and crystalline structures also indicated that the superior performance of Pt52Sn(36-x)Rh12-Sn xO2x might result from the electronic effect of the Pt/Sn/Rh random alloy.",

author = "Wenxin Du and Qi Wang and Lascala, \{Carlo A.\} and Lihua Zhang and Dong Su and Frenkel, \{Anatoly I.\} and Mathur, \{Virendra K.\} and Xiaowei Teng",

year = "2011",

month = jun,

day = "28",

doi = "10.1039/c0jm04358c",

language = "English",

volume = "21",

pages = "8887--8892",

journal = "Journal of Materials Chemistry",

issn = "0959-9428",

number = "24",

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TY - JOUR

T1 - Ternary PtSnRh-SnO2 nanoclusters

T2 - Synthesis and electroactivity for ethanol oxidation fuel cell reaction

AU - Du, Wenxin

AU - Wang, Qi

AU - Lascala, Carlo A.

AU - Zhang, Lihua

AU - Su, Dong

AU - Frenkel, Anatoly I.

AU - Mathur, Virendra K.

AU - Teng, Xiaowei

PY - 2011/6/28

Y1 - 2011/6/28

N2 - Carbon supported ternary Pt52Sn(36-x)Rh 12-SnxO2x electrocatalysts with the average diameter of 2.8 ± 0.5 nm were synthesized using a Polyol process followed by thermal treatment. Several techniques including high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) were used to identify the coexistence of homogeneously distributed Pt/Sn/Rh random alloy and non-alloyed SnO2 throughout the catalyst. The Pt52Sn(36-x)Rh 12-SnxO2x catalyst showed a superior long-term activity and stability towards ethanol oxidation than the commercial Pt catalyst. Our data of ternary Pt/Sn/Rh catalysts with different chemical compositions and crystalline structures also indicated that the superior performance of Pt52Sn(36-x)Rh12-Sn xO2x might result from the electronic effect of the Pt/Sn/Rh random alloy.

AB - Carbon supported ternary Pt52Sn(36-x)Rh 12-SnxO2x electrocatalysts with the average diameter of 2.8 ± 0.5 nm were synthesized using a Polyol process followed by thermal treatment. Several techniques including high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) were used to identify the coexistence of homogeneously distributed Pt/Sn/Rh random alloy and non-alloyed SnO2 throughout the catalyst. The Pt52Sn(36-x)Rh 12-SnxO2x catalyst showed a superior long-term activity and stability towards ethanol oxidation than the commercial Pt catalyst. Our data of ternary Pt/Sn/Rh catalysts with different chemical compositions and crystalline structures also indicated that the superior performance of Pt52Sn(36-x)Rh12-Sn xO2x might result from the electronic effect of the Pt/Sn/Rh random alloy.

UR - https://www.scopus.com/pages/publications/79959264901

U2 - 10.1039/c0jm04358c

DO - 10.1039/c0jm04358c

M3 - Article

AN - SCOPUS:79959264901

SN - 0959-9428

VL - 21

SP - 8887

EP - 8892

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 24

ER -

Ternary PtSnRh-SnO₂ nanoclusters: Synthesis and electroactivity for ethanol oxidation fuel cell reaction

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