Preparation, structural characterization and activity for ethanol oxidation of carbon supported ternary Pt-Sn-Rh catalysts

被引：0
|
作者：
Colmati, F. [1 ]
Antolini, E. [1 ]
Gonzalez, E.R. [1 ]
机构：
[1] Instituto de Química de São Carlos, USP, C.P. 780, São Carlos, SP 13560-970, Brazil
来源：
Journal of Alloys and Compounds | 2008年 / 456卷 / 1-2期
关键词：
Carbon supported ternary Pt-Sn-Rh (1:1:0.3 and 1:1:1) alloy catalysts were synthesized by reduction of the metal precursors with formic acid and characterized by EDX; XRD and TEM analyses. Their activity for ethanol oxidation was compared with that of binary Pt-Sn/C and Pt-Rh/C prepared with the same method. XRD analysis indicated that both the lattice parameter and the crystallite size of the Pt-Sn-Rh alloy catalysts are higher than those of Pt-Rh/C and lower than those of Pt-Sn/C. The intermediate value of the particle size of the ternary alloy catalysts was confirmed by TEM images. Linear sweep voltammetry measurements indicated that; for potentials higher than 0.45 V versus RHE; the ternary Pt-Sn-Rh alloy catalysts possess the higher activity for ethanol electro-oxidation; while for potentials lower than 0.45 V versus RHE the electrochemical activity of the ternary catalysts was lower than that of the binary Pt-Sn catalyst. The enhanced activity for ethanol electro-oxidation on the ternary Pt-Sn-Rh catalysts was ascribed to the formation of a ternary alloy and to the lower particle size. © 2007 Elsevier B.V. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：264 / 270
相关论文
共 50 条
  • [1] Preparation, structural characterization and activity for ethanol oxidation of carbon supported ternary Pt-Sn-Rh catalysts
    Colmati, F.
    Antolini, E.
    Gonzalez, E. R.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 456 (1-2) : 264 - 270
  • [2] Ethanol electro-oxidation on partially alloyed Pt-Sn-Rh/C catalysts
    de Souza, Elson A.
    Giz, M. Janete
    Camara, Giuseppe A.
    Antolini, Ermete
    Passos, Raimundo R.
    ELECTROCHIMICA ACTA, 2014, 147 : 483 - 489
  • [3] Effect of Ru addition on the structural characteristics and the electrochemical activity for ethanol oxidation of carbon supported Pt-Sn alloy catalysts
    Antolini, Ermete
    Colmati, Flavio
    Gonzalez, Ernesto R.
    ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (03) : 398 - 404
  • [4] Preparation, Structural Characterization, and Activity for Ethanol Oxidation of Carbon-Supported PtSnIn Catalyst
    Zhu, Mingyuan
    Sun, Gongquan
    Yan, Shiyou
    Li, Huanqiao
    Xin, Qin
    ENERGY & FUELS, 2009, 23 (1-2) : 403 - 407
  • [5] Impact of the modification of carbon-supported, Pt-based catalysts by irreversibly adsorbed Sn, Ru and Rh on ethanol oxidation
    Lovic, Jelena D.
    Tripkovic, Amalija V.
    Popovic, Ksenija D. J.
    JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 2011, 76 (11) : 1523 - 1536
  • [6] Decoration of carbon-supported Pt catalysts with Sn to promote electro-oxidation of ethanol
    Li, Guangchun
    Pickup, Peter G.
    JOURNAL OF POWER SOURCES, 2007, 173 (01) : 121 - 129
  • [7] One-step microwave-assisted synthesis of carbon-supported ternary Pt-Sn-Rh alloy nanoparticles for fuel cells
    Hu, Xiaobo
    Song, Pingping
    Yang, Xiaolong
    Wang, Cheng
    Wang, Jianlong
    Tang, Yaping
    Zhang, Jianbo
    Mao, Zongqiang
    JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2020, 115 : 272 - 278
  • [8] Carbon monoxide and ethanol oxidation on PtSn supported catalysts: Effect of the nature of the carbon support and Pt:Sn composition
    Asgardi, Jaime
    Carlos Calderon, Juan
    Alcaide, Francisco
    Querejeta, Amaia
    Calvillo, Laura
    Jesus Lazaro, Ma
    Garcia, Gonzalo
    Pastor, Elena
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 168 : 33 - 41
  • [9] Synthesis and characterization of Pt–Sn–Ce/MC ternary catalysts for ethanol oxidation in membraneless fuel cells
    M. Priya
    S. Kiruthika
    B. Muthukumaran
    Ionics, 2017, 23 : 1209 - 1218
  • [10] Preparation of ternary Pt/Rh/SnO2 anode catalysts for use in direct ethanol fuel cells and their electrocatalytic activity for ethanol oxidation reaction
    Higuchi, Eiji
    Takase, Tomonori
    Chiku, Masanobu
    Inoue, Hiroshi
    JOURNAL OF POWER SOURCES, 2014, 263 : 280 - 287
12345