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碱性介质中铂/碳气凝胶电催化氧化甲醇 被引量：2

Electro-catalytic oxidation of methanol catalyzed by platinum/carbon aerogels in alkaline medium
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摘要 以间苯二酚和甲醛为原料,采用溶胶-凝胶法制备了碳气凝胶(CAs);以CAs为载体,利用乙二醇还原法制备了Pt/CAs催化剂;在碱性条件下,采用循环伏安法测定了Pt/CAs催化剂电催化氧化甲醇的活性,结果表明,Pt/CAs显示出高的甲醇氧化催化活性,在1.0mol.L-1 NaOH和1.0mol.L-1 CH3OH溶液中,其峰电流密度是商品Vulcan XC-72R负载Pt催化剂Pt/C的3.9倍,甲醇起始氧化电位比Pt/C的负移约100mV. Carbon aerogels（CAs）were prepared by sol-gel method in the presence of resorcinol and formaldehyde as the starting materials.As-obtained CAs was then adopted as supporters to prepare Pt/CAs catalyst by ethylene glycol reduction method.A cyclic voltammeter was used to measure the catalytic activity of Pt/CAs catalyst for the electro-catalytic oxidation of methanol in an alkaline medium.Results show that Pt/CAs electrocatalysts exhibit a high electrocatalytic activity for methanol oxidation.Namely,in the aqueous solutions of 1.0mol.L-1 NaOH and 1.0mol.L-1 CH3OH,the peak current density on Pt/CAs is 3.9times as much as that on commercial Vulcan XC-72Rcarbon supported Pt（Pt/C）electrocatalyst,and the starting oxidation potential of CH3OH on the former shifts negatively by about 100mV as compared with that on the latter.
作者 刘勇 杨浩 高丽 毛立群
机构地区 河南大学化学化工学院
出处 《化学研究》 CAS 2013年第4期408-411,共4页 Chemical Research
关键词 碳气凝胶 PT CAs催化剂 碱性介质 甲醇 电催化氧化 carbon aerogels Pt/CAs catalyst alkaline medium methanol electro-catalytic oxidation
分类号 O646 [理学—物理化学]
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参考文献11

  • 1HAMNETT A. Mechanism and electrocatalysis in the direct methanol fuel cell[J]. Catal Today, 1997, 38: 445-57.
  • 2MCNICOL B D, RAND D A J, WILLIAMS K R. Direct methanol-air fuel cells for road transportation[J]. J Power Sources, 1999, 83: 15-31.
  • 3ABDEL RAHIM M A, ABDEL HAMEED R M, KHALIL M W. Nickel as a catalyst for the electro-oxidation of methanol in alkaline medium[J]. J Power Sources, 2004, 134: 160-169.
  • 4XIONG Ying, LIU Qing Lin, ZHU Ai Mei, et al. Performance of organic-inorganic hybrid anion-exchange membranes for alkaline direct methanol fuel cells[J]. J Power Sources, 2009, 186: 328-333.
  • 5WINTER F, KOOT V, DILLEN A J, et al. Hydrotalcites supported on carbon nanofibers as solid base catalysts for the synthesis of M1BK[J]. J Catal, 2005, 236: 91-100.
  • 6TANG Ming Xue, QIN Yu Jun, WANG You You, et al. Hollow carbon nanotube microspheres and hemimicrospheres [J]. J PhysChemC, 2009, 113: 1666-1671.
  • 7LI Yan, CHEN Jia Fu, XU Qun, et al. Controllable route to solid and hollow monodisperse carbon nanospheres[J]. J Phys Chem C, 2009, 113: 10085-10089.
  • 8WEI Song Li, WU Ding Cai, SHANG Xue Long, et al. Studies on the structure and electrochemical performance of Pt/ carbon aerogel catalyst for direct methanol fuel cells[J]. Energ Fuel, 2009, 23: 908-911.
  • 9ZHU Hong, GUO Zhi Jun, ZHANG Xin Wei, et al. Methanol-tolerant carbon aerogel supported Pt-Au catalysts for direct methanol fuel ceIl[J]. Int J Hydrogen Energ, 2012, 37: 873-876.
  • 10DU Hong Da, GAN Lin, LI Bao Hua, et al. Influences of mesopore size on oxygen reduction reaction catalysis of Pt/car bonaerogels[J]. J PhysChemC, 2007, 111: 2040-2043.

同被引文献17

  • 1Hamnett A. Mechanism and electrocatalysis in the direct methanol fuel cell [J]. Catal. Today,1997,38(4) : 445 - 447.
  • 2Carrette L, Friedrieh K A, Stimming U. Fuel cells: Principles, types, fuels and applications [ J ]. Chem Phys Chem,2000,1(4) : 162-193.
  • 3Basri S, Kamarudin S K, Daud W R W, et al. Nanocatalyst for direct methanol fuel cell(DMFC) [J]. Int J Hydrogen Energy,2010,35(15) : 7957-7970.
  • 4Chen A, Holt- Hindle P. Platinum -based nanostmctured materials : Synthesis, properties, and applications [ J ]. ChemRev,2010,110(6) : 3767-3804.
  • 5Lee J M, Hart S B, Kim J Y, et al. TiO2 carbon core - shell nanostruetum supports for platinum and their use for methanol electrooxidation [ J ]. Carbon, 2010, 48 (9) :2290 - 2296.
  • 6Madhu Sudan Saha,Banis Mohammad N ,Zhang Yong,et al. Tungsten oxide nanowires grown on carbon paper as Pt eleetrocatalyst support for high performance Proton Exchange Memebrane Fuel Cells [ J ]. Journal of Power Source, 2009 (192) : 330 -335.
  • 7Chen S Z, Ye F, Lin W M. Effect of operating conditions on the performance of a direct methanol fuel cell with PtRuMo/ CNTs as anode catalyst [ J ]. International Journal of Hydrogen Energy, 2010, 35(15) : 8225 -8233.
  • 8Levy R B, Boudart M. Platinum - like behavior of tungsten carbide in surface catalysis [J]. Science, 1973,181:547 - 549.
  • 9Izhar S, Nagai M. Cobalt molybdenum carbides as anode electrocatalyst for proton exchange membrane fuel cell [ J]. Journal of Power Sources, 2008 (182) :52 - 60.
  • 10Kimmel Y C, Esposito D V, Birkmire R W, et al. Effect of Surface carbon on the hydrogen evolution reactivity of tungsten carbide (WC) and Pt - modified WC cleetroeatalysts [ J ]. International Journal of Hydrogen Energy, 2012 (37) :3019 - 3024.

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化学研究
2013年 第4期

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