|
|
Electro-catalytic Properties of Pd/Sn Graphite Anode in Alkaline Medium |
LOU Baiyang, WU Shaolong, YANG Jing, XU Bin |
Institute of Materials and Surface Engineering, Zhejiang University of Technology, Hangzhou 310014 |
|
Cite this article:
LOU Baiyang WU Shaolong YANG Jing XU Bin. Electro-catalytic Properties of Pd/Sn Graphite Anode in Alkaline Medium. Chin J Mater Res, 2011, 25(3): 333-336.
|
Abstract Pd/Sn graphite electrode had been synthesized by chemical cobalt-plating. The microstructure and composition of modified graphite electrode were analyzed using scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Cyclic voltammetry and AC impedance were employed to study the electrocatalytic activity of the catalysts. Results show that Pd/Sn were deposited on graphite matrix as spherical particles and has no agglomerate in it. The relationships between peak current density and the square root of scan rate are linear, and the reaction rates of methanol and COads oxidation increase as the potentials increase.
|
Received: 23 February 2011
|
|
1 XIAO Gang, Fuel Cell Technology (Beijing, Publishing House of Electronics Industry, 2009)(肖 刚, 燃料电池技术 (北京, 电子工业出版社, 2009))2 E.H.Yu, K.Scott, Development of direct methanol alkaline fuel cell using anion exchange membranes, J Power Sources, 137(2), 248(2004)3 Sun ZhiPeng, Zhang XiaoGang, Liang YanYu, Highly dispersed Pd nanoparticles on covalent functional MWNT surfaces for methanol oxidation in alkaline solution, Electrochemistry Communications, 11(3), 557(2009)4 Innocenzo G Casella, Maria R Guascito, Electrochemical preparation of a composite gold-cobalt electrode and its electrocatalytic activity in alkaline medium, Electrochimica Acta, 45(7), 1113(1999)5 ZHENG Haitao, LI Yongliang, LIANG Jianying, SHEN Peikang, Methanol oxidation on Pd-based electrocatalysts, Acta Physico-Chimica Sinica, 23(7), 993(2007)(郑海涛, 李永亮, 梁剑莹, 沈培康, 甲醇在Pd基电催化剂上的氧化, 物理化学学报, 23(7), 993(2007))6 P.K.Shen, C.W.Xu, Alcohol oxidation on nanocrystalline oxide Pd/C promoted electrocatalysts, Electrochemistry Communications, 8(1), 184(2006)7 A.V.Tripkovic, K.D.Popvic, B.N.Grgur, Methanol electrooxidation on supported Pt and PtRu catalysts in acid and alkaline solutions, Electrochim Acta, 47(22-23), 3707(2002)8 V.Stamenkovic, M.Arenz, B.B.Blizanac, In situ CO oxidation on well characterized Pt3Sn surfces: A selective review. Surf. Sci., 576, 145(2005)9 Zhaolin Liu, Bing Guo, Liang Hong, Microwave heated polyol synthesis of carbon-supported PtSn nanoparticles for methanol electrooxidation, Electrochemistry Communications, 8(1), 83(2006)10 A.L.Ocampo, M.Miranda-Hern´andez, J.Morgado, Characterization and evaluation of Pt-Ru catalyst supported on multi-walled carbon nanotubes by electrochemical impedance, Journal of Power Sources, 160, 915(2006)11 Wu Gang, Li Li, Xu BoQing, Effect of electrochemical polarization of PtRu/C catalysts on methanol electrooxidation, Electrochimica Acta, 50, 1(2004)12 Wataru Sugimoto, Kei Aoyama, Tomoyuki Kawaguchi, Kinetics of CH3OH oxidation on PtRu/C studied by impedance and CO stripping voltammetry, Journal of Electroanalytical Chemistry, 576, 215(2005) |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|