催化学报

催化学报 ›› 2009, Vol. 30 ›› Issue (3): 179-181.

• 研究快讯 •    下一篇

钌钛复合氧化物及其载铂催化剂的制备与表征

王爱萍1, 徐海波2, 芦永红2, 胡杰珍2, 孔祥峰2, 田丙伦3, 董辉3   

  1. 1中国海洋大学材料科学与工程研究院, 山东青岛266003; 2中国海洋大学化学化工学院, 海洋化学理论与工程技术教育部重点实验室, 山东青岛266003; 3上海攀业氢能源科技有限公司, 上海201812
  • 收稿日期:2009-03-25 出版日期:2009-03-25 发布日期:2012-12-19

Synthesis and Characterization of Ruthenium-Titanium Composite Oxide and a Platinum Catalyst Supported on It

WANG Aiping1, XU Haibo2,*, LU Yonghong2, HU Jiezhen2, KONG Xiangfeng2,   

  1. 1 Institute of Material Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, China; 2 Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, Shandong, China; 3 Shanghai Pearl Hydrogen Power Source Technology Co., Ltd., Shanghai 201812, China
  • Received:2009-03-25 Online:2009-03-25 Published:2012-12-19

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1434

被引次数

13

摘要： 以TiN纳米粉体和RuCl3为前驱体, 采用浸渍热分解法合成了Ru0.1Ti0.9O2纳米粉体, 并以其为载体利用固相反应制备了Pt/Ru0.1Ti0.9O2催化剂. 通过X射线衍射和透射电镜观察到RuO2和TiO2之间形成了金红石相的固溶体, Pt被均匀地担载于Ru0.1Ti0.9O2表面. 在0.5 mol/L H2SO4溶液中的极化曲线测试发现担载Pt与Ru0.1Ti0.9O2具有协同作用, 因而具有优异的析氢、析氧电催化性能. 质子交换膜燃料电池测试初步表明, Pt/Ru0.1Ti0.9O2具有高的氧阴极还原反应催化活性, 进一步的反极实验证明其具有比Pt/C更高的稳定性.

关键词: 氮化钛, 氧化钌, 氧化钛, 浸渍热分解, 燃料电池, 水电解, 催化剂载体, 导电氧化物

Abstract: Ru0.1Ti0.9O2 nanopowder was synthesized from TiN nanoparticle and RuCl3 precursors by the impregnation-thermal decomposition method. The supported Pt/Ru0.1Ti0.9O2 electrocatalyst was then prepared by solid phase synthesis. Pt/Ru0.1Ti0.9O2 showed much better stability than Pt/C in an anti-polarization experiment. Pt/Ru0.1Ti0.9O2 also showed much better electrocatalytic properties as a PEMFC cathodic catalyst by modifying a membrane electrode.

Key words: titanium nitride, ruthenium oxide, titania, impregnation-thermal decomposition, fuel cell, water electrolysis, catalyst support, conductive oxide