Research Paper

Effects of Microwavesynthesizing Parameters on Structure and Electrocatalytic Activity of Pt2Mo/C towards Methanol Oxidation

  • ZENG Xin ,
  • YUAN Xian-Xia ,
  • XIA Xiao-Yun ,
  • DU Juan ,
  • ZHANG Hui-Juan ,
  • MA Zi-Feng
Expand
  • Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2009-08-26

  Revised date: 2009-10-23

  Online published: 2010-04-27

Abstract

Pt2Mo/C was prepared by microwavesynthesis to improve the catalytic performance of Ptbased catalysts towards methanol xidation. Effects of reaction and sonicating time on the crystal structure, micromorphology and electrocatalytic activity of Pt2Mo/C were systematically investigated. The results show that the crystal structure of Pt2Mo/C is mainly determined by the reaction time while the sonicating time has little influence on it. The micromorphology of Pt2Mo/C is determined by oth the reaction and sonicating time. The influencing sequences of reaction and sonicating time on electrocatalytic activity of Pt2Mo/C are 10min>15min>20min >5min and 60min>100min>30min>0min, respectively. The optimized parameters of preparing Pt2Mo/C owing best catalytic activity towards methanol electrooxidation are 10min of reaction time and 60min of sonicating time.

Cite this article

ZENG Xin , YUAN Xian-Xia , XIA Xiao-Yun , DU Juan , ZHANG Hui-Juan , MA Zi-Feng . Effects of Microwavesynthesizing Parameters on Structure and Electrocatalytic Activity of Pt2Mo/C towards Methanol Oxidation[J]. Journal of Inorganic Materials, 2010 , 25(4) : 359 -364 . DOI: 10.3724/SP.J.1077.2010.00359

References

[1]杜 娟, 原鲜霞, 巢亚军, 等(DU Juan, et al). 直接甲醇燃料电池电催化剂研究进展.稀有金属材料与工程(Rare Metal Materials and Engineering), 2007, 36(7): 1309-1312.
[2]Grgur B N, Zhuang G, Markovic N M, et al. Electrooxidation of H2/CO mixtures on a wellcharacterized Pt75Mo25 alloy surface. Journal of Physical Chemistry B, 1997, 101(20): 3910-3913.
[3]Grgur B N, Markovic N M, Ross P N. The electrooxidation of H2 and H2/CO mixtures on carbonsupported PtxMoy alloy catalysts. Journal of the Electrochemical Society, 1999, 146(5): 1613-1619.
[4]Ioroi T, Fujiwara N, Siroma Z, et al. Platinum and molybdenum oxide deposited carbon electrocatalyst for oxidation of hydrogen containing carbon monoxide. Electrochemistry Communications, 2002, 4(2): 442-446.
[5]Song C J, Khanfar M, Pickup P G. Mo oxide modified catalysts for direct methanol, formaldehyde and formic acid fuel cells. Journal of Applied Electrochemistry, 2006, 36(3): 339-345.
[6]Zhang H, Wang Y, Fachini E R, et al. Electrochemically codeposited platinum/molybdenum oxide electrode for catalytic oxidation of methanol in acid solution. Electrochemical and Solid State Letters, 1999, 2(9): 437-439.
[7]Tu W, Liu H. Rapid synthesis of nanoscale colloidal metal clusters by microwave irradiation. Journal of Materials Chemistry, 2000, 10(9): 2207-2211. [8]Komarneni S, Li Q H, Roy R. Microwavehydrothermal processing of layered anion exchangers. Journal of Materials Research, 1996, 11(8): 1866-1869.
[9]Tian Z Q, Jiang S P, Liang Y M, et al. Synthesis and characterization of platinum catalysts on multiwalled carbon nanotubes by intermittent microwave irradiation for fuel cell applications. Journal of Physical Chemistry B, 2006, 110(10): 5343-5350.
[10]Chen W X, Lee J Y, Liu Z. Microwaveassisted synthesis of carbon supported Pt nanoparticles for fuel cell applications. Chemical Communications, 2002, 8(21): 2588-2589.
[11]Li X, Chen W X, Zhao J, et al. Microwave polyol synthesis of Pt/CNTs catalysts: effects of Ph on particle size and electrocatalytic activity for methanol electrooxidization. Carbon, 2005, 43(10): 2168-2174.
[12]Justin P, Rao G R. Microwave polyol synthesis of Pt/CNTs catalysts: effects of Ph on particle size and electrocatalytic activity for methanol electrooxidization. Catalysis Today, 2009, 141(1/2): 138-143.
[13]杜 娟, 原鲜霞, 余江虹, 等(DU Juan, et al). 微波法合成PtMox/C催化剂及其甲醇电氧化催化性能.电源技术(Chinese Journal of Power Sources), 2007, 31(11): 873-876.
[14]Han D M, Guo Z P, Zhao Z W, et al. Polyoxometallatestabilized Pt-Ru catalysts on multiwalled carbon nanotubes: influence of preparation conditions on the performance of direct methanol fuel cells. Journal of Power Sources, 2008, 184(2): 361-369.
[15]Zhu J, Cheng F, Tao Z, et al. Electrocatalytic methanol oxidation of Pt0.5Ru0.5-xSnx/C (x=0-0.5). Journal of Physical Chemistry C, 2008, 112(16): 6337-6345.

Outlines

/