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Ni-W-WC复合电极在碱性介质中的电催化析氢
引用本文:肖秀峰,刘榕芳,朱则善.Ni-W-WC复合电极在碱性介质中的电催化析氢[J].物理化学学报,1999,15(8):742-746.
作者姓名:肖秀峰  刘榕芳  朱则善
作者单位:Department of Chemistry,Fujian Teacher's University,Fujian 350007
基金项目:厦门大学固体表面物理化学国家重点实验室资助
摘    要:氢能源作为高效、洁净和理想的二次能源,已受到世界各国广泛的重视[1].电解水制氢是实现大规模生产氢的重要手段,为降低电解能耗,最行之有效的办法是降低氢的阴极析出电位,因此开发新型廉价高催化性能的析氢材料具有十分重要的意义.具有高催化析氢活性的单一金属和合金材料已广为报导[2-8].近二十年来,通过复合电沉积技术将一种或数种不溶性固体微粒渗杂到金属材料中所形成的复合镀层,如Ni-WC[9]、Ni-PTTE[10]、Ni-RuO_2[11]、Ni-LaNiO3[12]等,这些复合镀层因其高比表面而表…

关 键 词:复合电极  电催化  析氢  
收稿时间:1998-09-04
修稿时间:1999-01-11

Ni-W-WC Composite Costing Electrode for Hydrogen Evolution in Alkaline Solution
Xiao Xiufeng,Liu Rongfang,Zhu Zeshan.Ni-W-WC Composite Costing Electrode for Hydrogen Evolution in Alkaline Solution[J].Acta Physico-Chimica Sinica,1999,15(8):742-746.
Authors:Xiao Xiufeng  Liu Rongfang  Zhu Zeshan
Institution:Department of Chemistry,Fujian Teacher's University,Fujian 350007
Abstract:The Ni-W-WC composite-coating electrode was prepared by electrolytic composite-deposition. The characterization for the hydrogen evolution reaction (HER) was compared in 7 mol• L -1 KOH solution by steady-state polarization and AC impedance technique. The results show that the composite-coating electrode is catalytically more active than Ni-W electrode. The electro- catalytic activities of the composite-coating electrode are attributed to the increase in the real surface areas and the decrease in the standard free energy of activation. The stability test of the composite-coating electrode shows excellent stability during long-term continuous electrolysis and good resistance against frequent power interruption on this electrode.
Keywords:Composite electrode  Electrocatalysis  Hydrogen evolution
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