Please wait a minute...
Acta Physico-Chimica Sinica  2008, Vol. 24 Issue (02): 317-322    DOI: 10.3866/PKU.WHXB20080223
Note     
Effects of pH on the PtRu/C Catalyst Prepared by Microwave-assisted Ethylene Glycol Process
LIANG Ying; LIAO Dai-Wei
Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China
Download:   PDF(2384KB) Export: BibTeX | EndNote (RIS)      

Abstract  PtRu nanoparticles supported on the carbon, with different mean particle sizes, were synthesized by microwave-assisted ethylene glycol process, the effects of pH on the PtRu/C catalyst were mainly investigated. UV-Vis spectroscopy, energy dispersive X-ray analysis, transmission electron microscopy, and X-ray diffraction were applied to characterize the PtRu nanoparticles. The solution pH had important influence on the metal particle size. TEMresults indicated that the PtRu mean particle size decreased from 3.5 nm to 1.5 nm with the increase of pH value. However, when pH value reached 11.0, the metal loading of synthesized catalyst decreased distinctly because the metal nanoparticles were protected in solution. The results showed that the PtRu/C catalyst synthesized at pH ca 9.0, with appropriate particle sizes (2.4 nm) and homogenous dispersed particles, had the highest electrocatalytic activity for methanol electrooxidation among all the synthesized catalysts.

Key wordsMicrowave heating      PtRu catalyst      Particles size      Methanol electrooxidation     
Received: 10 August 2007      Published: 24 December 2007
MSC2000:  O646  
Corresponding Authors: LIAO Dai-Wei     E-mail: dwliao@xmu.edu.cn
Cite this article:

LIANG Ying; LIAO Dai-Wei. Effects of pH on the PtRu/C Catalyst Prepared by Microwave-assisted Ethylene Glycol Process. Acta Physico-Chimica Sinica, 2008, 24(02): 317-322.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20080223     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2008/V24/I02/317

[1] TONG La-Ga, LIU Jin-Yan, WANG Cen-Chen, RONG Hua, LI Wei. Preparation of Micro/Nano ZnO Pompons and Their Catalytic Activity for the Solar Degradation of Organic Dyes[J]. Acta Physico-Chimica Sinica, 2015, 31(8): 1615-1620.
[2] LI Li, HE Xiao-Li, QIN Tao, DAI Fu-Tao, ZHANG Xiao-Hua, CHEN Jin-Hua. Dual-Sacrificial Template Synthesis of One-Dimensional Tubular Pt-Mn3O4-C Composite with Excellent Electrocatalytic Performance for Methanol Oxidation[J]. Acta Physico-Chimica Sinica, 2015, 31(5): 927-932.
[3] YIN Shi-Bin, LUO Lin, JING Sheng-Yu, ZHU Qiang-Qiang, QIANG Ying-Huai. Effect of Intermittent Microwave Heating on the Performance of Catalysts for Oxygen Reduction Reaction[J]. Acta Physico-Chimica Sinica, 2012, 28(01): 85-89.
[4] YANG Zhi-Qiang, MAO Dong-Sen, WU Ren-Chun, YU Jun, WANG Qian. Preparation of CuO-Ce0.6Zr0.4O2 by Microwave Heating Decomposition and Its Catalytic Property for CO Oxidation[J]. Acta Physico-Chimica Sinica, 2011, 27(05): 1163-1168.
[5] CHEN Hua-Rong, CHANG Ran-Ran, LI Li, YUAN Wen-Hui. High Performance NaA Zeolite Membrane for Hydrogen Separation Synthesized on an Organic-Functionalized α-Al2O3 Ceramic Hollow Fiber Surface[J]. Acta Physico-Chimica Sinica, 2011, 27(01): 241-247.
[6] YANG Zhi-Qiang, MAO Dong-Sen, GUO Qiang-Sheng, GU Lei. Effect of Preparation Method on the Activity of CuO/CeO2-ZrO2 Catalysts for Low Temperature CO Oxidation[J]. Acta Physico-Chimica Sinica, 2010, 26(12): 3278-3284.
[7] AN Xiao-Sha, CHEN De-Jun, ZHOU Zhi-You, WANG Qiang, FAN You-Jun, SUN Shi-Gang. Rare Earth Eu Doped PtRu/C Catalysts and Their Properties for Methanol Electrooxidation[J]. Acta Physico-Chimica Sinica, 2010, 26(05): 1207-1213.
[8] LI Lan-Lan; WEI Zi-Dong; YAN Can; LUO Yi-Hui; YIN Guang-Zhi; SUN Cai-Xin. Methanol Oxidation on a Pt ElectrodeModified by Underpotential Deposition of Ru[J]. Acta Physico-Chimica Sinica, 2007, 23(05): 723-727.
[9] ZONG Ye;WANG Yu;LIN Chang-Jian . Preparation and Characterization of a High Loading Nano PtRu/C Catalysts in DMFC[J]. Acta Physico-Chimica Sinica, 2006, 22(11): 1305-1309.
[10] WANG Zhen-bo; YIN Ge-ping; SHI Peng-fei. The Influence of Three Groups of Pt-Ru/C Catalyst’s Precursors on Its Performance for Direct Methanol Fuel Cell[J]. Acta Physico-Chimica Sinica, 2005, 21(10): 1156-1160.
[11] CAO Jie-ming; WANG Jun; FANG Bao-qing; ZHENG Ming-bo; LU Hong-xia; CHANG Xin; WANG Hai-yan. Synthesis and Characterization of ZnO Nanomaterials with Different Morphologies in Ionic Liquids[J]. Acta Physico-Chimica Sinica, 2005, 21(06): 668-672.
[12] Peng Cheng;Cheng Xuan;Zhang Ying;Chen Ling;Fan Qing-Bai. Comparison of Methanol Electrooxidation on Carbon Supported Pt and PtRu Catalysts[J]. Acta Physico-Chimica Sinica, 2004, 20(04): 436-439.
[13] Liu Han-Xing, Zhao Shi-Xi, Liu Zhi-Jian, Ouyang Shi-Xi. Study on the Influence of Microwave Field on Heating in SrTiO3 Synthesis[J]. Acta Physico-Chimica Sinica, 2000, 16(12): 1067-1072.