Sn/Pt纳米立方体对乙醇电催化氧化的原位FTIR光谱研究

doi:10.13208/j.electrochem.131177

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (5): 395-400. doi: 10.13208/j.electrochem.131177

• 电化学近期研究专辑（厦门大学姜艳霞教授主编） • 下一篇

Sn/Pt纳米立方体对乙醇电催化氧化的原位FTIR光谱研究

饶路，张斌伟，李艳艳，姜艳霞^*，孙世刚

厦门大学化学化工学院化学系，固体表面物理化学国家重点实验室，福建厦门 361005

收稿日期:2014-02-19 修回日期:2014-04-22 出版日期:2014-10-28 发布日期:2014-04-27
通讯作者: 姜艳霞 E-mail:yxjiang@xmu.edu.cn
基金资助:
国家自然科学基金项目（No. 21273180，No. 21021002和No. 21361140374）资助

Electrochemical and Spectroscopic Studies of Ethanol Oxidation on Nano-Cubic Pt Modified by Tin Adatoms

RAO Lu, ZHANG Bin-wei, LI Yan-yan, JIANG Yan-xia^*, SUN Shi-gang

State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China

Received:2014-02-19 Revised:2014-04-22 Published:2014-10-28 Online:2014-04-27
Contact: JIANG Yan-xia E-mail:yxjiang@xmu.edu.cn

摘要/Abstract

摘要： 采用循环伏安电沉积方法制备了Sn修饰的铂纳米立方体，并研究其乙醇的电催化氧化. 结合传统的电化学技术和原位电化学红外光谱技术研究了Sn的作用机理. 循环伏安研究表明，Sn修饰后使其乙醇氧化的起始电位显著负移，Sn覆盖度~ 0.90时乙醇氧化的起始电位为-0.1 V. 原位红外光谱结果表明，修饰Sn后极大地促进了乙酸的生成，更利于乙醇的直接氧化途径，但对乙醇的C—C键断裂促进作用不大.

关键词: Sn修饰, 铂立方体, 乙醇, 电催化, 原位红外光谱

Abstract: The nano-cubic Pt modified by tin (Sn) was synthesized and used to investigate the role of this adatom played in the ethanol oxidation. The onset potential of ethanol oxidation was significantly shifted negatively which can be forward about 300 mV when the coverage of Sn (θSn)was 0.9. The electrtochemical in situ FTIR result demonstrated that the amount of CO2 increased first, and then decreased with θSn increased, and reached the maximun when θSn was 0.38. Furthermore, the formation of acetic acid could be observed at very low potential (-0.05 V) after modifying Sn adatom, and the amount of acetic acid increased with θSn increased. That is, Sn deposited on Pt surfaces has a double effect on the ethanol oxidation. First, it facilitates the oxidation of CO coming from the cleavage of the C—C bond in ethanol by a bifunctiontal mechanism. Second, the Pt–Sn ensemble catalyzes the oxidation of ethanol to acetic acid. This means that the main product in the oxidation of ethanol for the Pt–Sn system should be acetic acid unless the Pt surface structure has some special sites able to break the C—C bond.

Key words: tin modified, nano-cubic Pt, ethanol, electrocatalysis, in situ FTIR

中图分类号:

O646

饶路，张斌伟，李艳艳，姜艳霞*，孙世刚. Sn/Pt纳米立方体对乙醇电催化氧化的原位FTIR光谱研究[J]. 电化学（中英文）, 2014, 20(5): 395-400.

RAO Lu, ZHANG Bin-wei, LI Yan-yan, JIANG Yan-xia*, SUN Shi-gang. Electrochemical and Spectroscopic Studies of Ethanol Oxidation on Nano-Cubic Pt Modified by Tin Adatoms[J]. Journal of Electrochemistry, 2014, 20(5): 395-400.

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https://electrochem.xmu.edu.cn/CN/Y2014/V20/I5/395

参考文献

[1] Annett Rabis P R, Thomas J, Schmidt A. Electrocatalysis for polymer electrolyte fuel cells: Recent achievements and future challenges[J]. ACS Catalysis, 2012, 2(5): 864-890.
[2] Hu C G, Cheng H H, Zhao Y, et al. Newly-designed complex ternary Pt/PdCu nanoboxes anchored on three-dimensional graphene framework for highly efficient ethanol oxidation[J]. Advanced Materials, 2012, 24(40): 5493-5498.
[3] Brouzgou A, Tsiakaras P. PEMFCs and AEMFCs directly fed with ethanol: A current status comparative review[J]. Journal of Applied Electrochemistry, 2013, 43(2): 119-136.
[4] Santasalo Aarnio A, Tuomi S, Jalkanen K, et al. The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media[J]. Electrochimica Acta, 2013, 87(20): 730-738.
[5] Song S Q, Tsiakaras P. Recent progress in direct ethanol proton exchange membrane fuel cells[J]. Applied Catalysis B: Environmental, 2006, 63(3/4): 187-193.
[6] Cui G F, Song S Q, Shen P K, et al. First-principles considerations on catalytic activity of Pd toward ethanol oxidation[J]. Journal of Physical Chemistry C, 2009, 113(35): 15639-1564.
[7] Wu H X, Li H J, Zhai Y J, et al. Facile synthesis of free-standing Pd-based nanomembranes with enhanced catalytic performance for methanol/ethanol oxidation[J]. Advanced Materials, 2012, 24(12): 1594-1597.
[8] Du W X, Deskins N A, Su D, et al. Iridium-ruthenium alloyed nanoparticles for the ethanol oxidation fuel cell reactions[J]. ACS Catalysis, 2012, 2(6): 1226-1231.
[9] Wang F W, Liu Z P. Comprehensive mechanism and structure-sensitivity of ethanol oxidation on platinum: New transition-state searching method for resolving the complex reaction network[J]. Journal of the American Chemical Society, 2008, 130(33): 10996-11004.
[10] He Q G, Shyam B, Macounova K, et al. Dramatically enhanced cleavage of the C—C bond using an electrocatalytically coupled reaction[J]. Journal of the American Chemical Society, 2012, 134(20): 8655-8661.
[11] Dutta A, Datta J. Outstanding catalyst performance of PdAuNi nanoparticles for the anodic reaction in an alkaline direct ethanol （with Anion-Exchange Membrane） fuel cell[J]. Journal of Physical Chemistry C, 2012, 116(49): 25677-25688.
[12] Li M, Cullen D A, Sasaki K, et al. Ternary electrocatalysts for oxidizing ethanol to carbon dioxide: Making Ir capable of splitting C—C bond[J]. Journal of the American Chemical Society, 2013, 135(1): 132-141.
[13] Wang X D, Stover J, Zielasek V, et al. Colloidal synthesis and structural control of PtSn bimetallic nanoparticles[J]. Langmuir 2011, 27(17): 11052-11061.
[14] Zhou W J, Song S Q, Li W Z, et al. Direct ethanol fuel cells based on PtSn anodes: The effect of Sn content on the fuel cell performance[J]. Journal of Power Sources, 2005, 140(1): 50-58.
[15] Colle V D, Berna A, Tremiliosi-Filho G, et al. Ethanol electrooxidation onto stepped surfaces modified by Ru deposition: Electrochemical and spectroscopic studies[J]. Physical Chemistry Chemical Physics, 2008, 10(5): 3766-3773.
[16] Camara G A, de Lima R B, Iwasita T. Catalysis of ethanol electrooxidation by PtRu: The influence of catalyst composition[J]. Electrochemistry Communications 2004, 6(8): 812-815.
[17] Vigier F, Coutanceau C, Hahn F, et al. On the mechanism of ethanol electro-oxidation on Pt and PtSn catalysts: Electrochemical and in situ IR reflectance spectroscopy studies[J]. Journal of Electroanalytical Chemistry, 2004, 563(1): 81-89.
[18] Del Colle V, Souza-Garcia J, Tremiliosi-Filho G, et al. Electrochemical and spectroscopic studies of ethanol oxidation on Pt stepped surfaces modified by tin adatoms[J]. Physical Chemistry Chemical Physics, 2011, 13(50): 12163-12173.
[19] Li Y Y(李艳艳), Rao L(饶路), Jiang Y X(姜艳霞), et al. Electrooxidation of ethanol on platinum nanocubes supported on multi-walled carbon nanotubes[J]. Chemical Journal of Chinese Universities, 2013, 34(2): 408-413.
[20] Giz M J, Camara G A, Maia G. The ethanol electrooxidation reaction at rough PtRu electrodeposits: A FTIRS study[J]. Electrochemistry Communications, 2009, 11(8): 1586-1589.
[21] García-Rodríguez S, Rojas S, Pe?a M A, et al. An FTIR study of Rh-PtSn/C catalysts for ethanol electrooxidation: Effect of surface composition[J]. Applied Catalysis B: Environmental, 2011, 106(3/4): 520-528.
[22] Lu G Q, Sun S G, Chen S P, et al. Novel properties of dispersed Pt and Pd thin layer supported on GC for CO adsorption studied using in situ MS-FTIR spectroscopy[J]. Journal of Electroanalytical Chemistry, 1997, 421(1/2): 19-23.
[23] Yan Y G, Yang Y Y, Peng B, et al. Study of CO oxidation on polycrystalline Pt electrodes in acidic solution by ATR-SEIRAS[J]. Journal of Physical Chemistry C, 2011, 115(33): 16378-16388.

Sn/Pt纳米立方体对乙醇电催化氧化的原位FTIR光谱研究

Electrochemical and Spectroscopic Studies of Ethanol Oxidation on Nano-Cubic Pt Modified by Tin Adatoms

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