Enhanced electrocatalytic performance for methanol oxidation on Pt-TiO2/ITO electrode under UV illumination

被引:78
|
作者
Zhang, Hongmei [1 ]
Zhou, Weiqiang [1 ,4 ]
Du, Yukou [1 ]
Yang, Ping [1 ]
Wang, Chuanyi [2 ,3 ]
Xu, Jingkun [4 ]
机构
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[2] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
[3] Tufts Univ, Dept Chem, Medford, MA 02155 USA
[4] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China
基金
中国国家自然科学基金;
关键词
Methanol; Electrooxidation; UV illumination; Pt nanoparticles; Titanium oxide; PLATINUM ELECTROCATALYST; AUPT NANOPARTICLES; CARBON NANOTUBES; TIO2; CATALYSTS; ELECTROOXIDATION; ACID; RU; PD; PHOTOCATALYSTS;
D O I
10.1016/j.ijhydene.2010.09.025
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Pt is one of the most important electrode materials employed in direct methanol fuel cell, and many efforts have been directed to improving its electrocatalytic performance. In this work, Pt-TiO2 nanocomposites are successfully prepared by a sol-gel method. As revealed by TEM, Pt nanoparticles with an average size of 2.6 nm are well uniformly dispersed on porous TiO2. XRD structural characterization indicates that Pt possesses a face centered cubic crystal structure while TiO2 is in the format of both rutile and anatase phases. The electrochemical performance of as-prepared nanocomposite electrode (Pt-TiO2/ITO) is evaluated by studying the electrocatalytic oxidation of methanol in an alkaline medium with or without UV illumination. Comparative experiments evince that the electrochemical performance of Pt-TiO2/ITO for methanol electrooxidation is markedly improved under UV illumination. Under UV illumination, moreover, the poisoning resistance of Pt-TiO2/ITO for methanol electrooxidation is significantly improved, as supported by the results of time-coursed current measurements. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:13290 / 13297
页数:8
相关论文
共 50 条
  • [41] Halogen poisoning effect of Pt-TiO2 for formaldehyde catalytic oxidation performance at room temperature
    Zhu, Xiaofeng
    Cheng, Bei
    Yu, Jiaguo
    Ho, Wingkei
    APPLIED SURFACE SCIENCE, 2016, 364 : 808 - 814
  • [42] Enhanced electrocatalytic oxygen reduction and methanol oxidation performance in hollow Pt-Ag nanoparticles
    Singh, Gurpreet
    Aimola, Tulio
    Chen, Shutang
    Thota, Sravan
    Zhao, Jing
    Koenigsmann, Christopher
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2017, 254
  • [43] Enhanced electrocatalytic performance of Pt-based nanoparticles on reduced graphene oxide for methanol oxidation
    Ji, Zhenyuan
    Shen, Xiaoping
    Zhu, Guoxing
    Chen, Kangmin
    Fu, Guohua
    Tong, Lei
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2012, 682 : 95 - 100
  • [44] Pt-O/Pt active sites and electrocatalytic properties for methanol oxidation enhanced dually by anatase/rutile TiO2 and BiOx
    Zhong, Haiyin
    Wang, Ruixuan
    Yan, Zhihao
    Ling, Li
    Li, Hong
    CHEMICAL ENGINEERING JOURNAL, 2023, 476
  • [45] Enhanced Photoinduced Electrocatalytic Oxidation of Methanol Using Pt Nanoparticle-Decorated TiO2-Polyaniline Ternary Nanofibers
    Roy, Susmita
    Payra, Soumitra
    Challagulla, Swapna
    Arora, Rishabh
    Roy, Sounak
    Chakraborty, Chanchal
    ACS OMEGA, 2018, 3 (12): : 17778 - 17788
  • [46] Effect of platinum dispersion on photocatalytic performance of Pt-TiO2
    Lili Hou
    Min Zhang
    Zhongjie Guan
    Qiuye Li
    Jianjun Yang
    Journal of Nanoparticle Research, 2018, 20
  • [47] Pt Nanorods Aggregates with Enhanced Electrocatalytic Activity toward Methanol Oxidation
    He, Yun-Bo
    Li, Gao-Ren
    Wang, Zi-Long
    Ou, Yan-Nan
    Tong, Ye-Xiang
    JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (45): : 19175 - 19181
  • [48] Catalytic Wet Air Oxidation of Methyl Orange Onto Pt and Pt-TiO2
    Rabelo, Adriano C.
    Rosario, Adriane V.
    Trapp, Mar-Lia A.
    Rodrigues Filho, Edson
    Forim, Moacir
    Pereira, Ernesto C.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2016, 16 (09) : 10040 - 10047
  • [49] Effect of platinum dispersion on photocatalytic performance of Pt-TiO2
    Hou, Lili
    Zhang, Min
    Guan, Zhongjie
    Li, Qiuye
    Yang, Jianjun
    JOURNAL OF NANOPARTICLE RESEARCH, 2018, 20 (03)
  • [50] Enhancement of methanol electrocatalytic oxidation on platinized WO3-TiO2 composite electrode under visible light irradiation
    Wang, Caiqin
    Jiang, Fengxing
    Zhou, Rong
    Du, Yukou
    Yang, Ping
    Wang, Chuanyi
    Xu, Jingkun
    MATERIALS RESEARCH BULLETIN, 2013, 48 (03) : 1099 - 1104