东南大学学报（自然科学版）2017，Vol.47Issue(5)：979-986,8.DOI:10.3969/j.issn.1001-0505.2017.05.022
焙烧温度对TiO2纳米纤维的组成及其载铂催化剂对甲醇电化学氧化活性的影响
Effects of calcination temperature on component of TiO2 nanofibers and Pt/TiO2 nanofiber catalysts for methanol electrooxidation
摘要
Abstract
TiO2 nanofibers with different crystal phases were prepared by electrospinning and calcination at different temperatures.Pt/TiO2 nanofiber electrocatalysts (PT-x,x was the calcination temperature) were achieved by loading Pt nanoparticles on the surface of TiO2 nanofibers using impregnation reduction method.The crystal phase,the microstructure and the chemical composition were investigated by X-ray diffraction (XRD),transmission electron microscope (TEM) and energy disperse spectroscopy (EDS).The test results show that the rutile content of TiO2 nanofibers increases with the increase of the calcination temperature.The rutile content of TiO2 nanofiber obtained at 550 ℃ is 2.67％.The Pt content is about 20％ and Pt nanoparticles are uniformly distributed on the surface of TiO2 nanofibers.The size of Pt nanoparticles supported by PT-550 is the smallest among the catalysts.The electrocatalytic results show that,the PT-550 catalyst has better electrocatalytic oxidation activity,CO poisoning resistance ability and stability.关键词
静电纺丝/二氧化钛纳米纤维/焙烧温度/甲醇/电化学氧化Key words
electrospinning/TiO2 nanofibers/calcination temperature/methanol/electrocatalytic oxidation分类
化学化工引用本文复制引用
刘香香,张鑫,张政英,娄永兵,郑颖平,孙岳明..焙烧温度对TiO2纳米纤维的组成及其载铂催化剂对甲醇电化学氧化活性的影响[J].东南大学学报（自然科学版）,2017,47(5):979-986,8.基金项目
国家重点基础研究发展计划(973计划)资助项目(2013CB932902)、国家自然科学基金资助项目(21475021,21427807)、江苏省自然科学基金资助项目(BK20141331). （973计划）
