Hydrothermal synthesis of Pt-Ru/MWCNTs and its electrocatalytic properties for oxidation of methanol

被引：0
作者：
Sun Jingyu [1 ]
Huang Jianshu [1 ]
Cao Yanxia [3 ]
Zhang Xiaogang [1 ,2 ]
机构：
[1] Xinjiang Univ, Inst Appl Chem, Urumqi 830046, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China
[3] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2007年 / 2卷 / 01期
关键词：
Pt-Ru/MWCNTs electrocatalyst; methanol electro-oxidation; hydrothermal method;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Pt-Ru nanoparticles supported on multiwalled carbon nanotube (MWCNTs) were synthesized by hydrothermal method. The catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). Pt-Ru nanoparticles uniformly dispersed on MWCNTs with the mean diameter of about 3.5 nm. The electro-catalytic oxidation of methanol was studied by cyclic voltammetry, chronoamperometry and impedance spectroscopy in 0.5 M H2SO4 solution containing 1.0 M CH3OH. The results showed that the Pt-Ru/MWCNTs catalysts as prepared had higher electrocatalytic activities for methanol oxidation than that of Pt-Ru/MWCNTs synthesized by microwave heating method.
引用
收藏
页码：64 / 71
页数：8
相关论文
共 17 条
  • [1] Mixed phase Pt-Ru catalyst for direct methanol fuel cell anode by flame aerosol synthesis
    Chakraborty, D
    Bischoff, H
    Chorkendorff, I
    Johannessen, T
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (12) : A2357 - A2363
  • [2] Supported mixed metal nanoparticles as electrocatalysts in low temperature fuel cells
    Chan, KY
    Ding, J
    Ren, JW
    Cheng, SA
    Tsang, KY
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (04) : 505 - 516
  • [3] Oxygen reduction at Pt and Pt70Ni30 in H2SO4/CH3OH solution
    Drillet, JF
    Ee, A
    Friedemann, J
    Kötz, R
    Schnyder, B
    Schmidt, VM
    [J]. ELECTROCHIMICA ACTA, 2002, 47 (12) : 1983 - 1988
  • [4] Electrooxidation of methanol at platinum-ruthenium catalysts prepared from colloidal precursors:: Atomic composition and temperature effects
    Dubau, L
    Coutanceau, C
    Garnier, E
    Léger, JM
    Lamy, C
    [J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 2003, 33 (05) : 419 - 429
  • [5] FLAVIO C, 2005, ELECTROCHIM ACTA, V50, P5496
  • [6] HUBERT A, 1994, J ELECTROCHEM SOC, V141, P1795
  • [7] Methanol oxidation on PtRu electrodes. Influence of surface structure and Pt-Ru atom distribution
    Iwasita, T
    Hoster, H
    John-Anacker, A
    Lin, WF
    Vielstich, W
    [J]. LANGMUIR, 2000, 16 (02) : 522 - 529
  • [8] Preparation and characterization of PtSn/C anode electrocatalysts for direct ethanol fuel cell
    Jiang, LH
    Sun, GQ
    Zhou, ZH
    Xin, Q
    [J]. CATALYSIS TODAY, 2004, 93-5 : 665 - 670
  • [9] Physical and electrochemical characterizations of microwave-assisted polyol preparation of carbon-supported PtRu nanoparticles
    Liu, ZL
    Lee, JY
    Chen, WX
    Han, M
    Gan, LM
    [J]. LANGMUIR, 2004, 20 (01) : 181 - 187
  • [10] Performance data of a proton exchange membrane fuel cell using H-2/CO as fuel gas
    Oetjen, HF
    Schmidt, VM
    Stimming, U
    Trila, F
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (12) : 3838 - 3842
12