摘要
采用溶剂热助乙二醇还原法合成载量约为20 wt.%的Pt/C催化剂。利用TEM,XRD对产物的结构和形貌进行表征、TG对材料的实际Pt载量进行分析。通过循环伏安法和线性扫描伏安法考查所制备Pt/C催化剂的电催化氧还原反应活性。反应条件易控、操作简单方便、可重复性强,将材料的制备和物化表征很好地结合起来,不仅能锻炼学生的实验操作技能,也有利于培养创新思维和科研能力。
20 wt.%Pt/C catalyst was synthesized via solvothermal assisted ethylene glycol reduction method.The structure and morphology of the Pt/C catalyst were characterized by transmission electron microscope(TEM)and X-ray diffraction(XRD),and the actual Pt loading of the material was analyzed by thermogravimetry(TG).Cyclic voltammetry and linear sweep voltammetry were applied to investigate the electrocatalyticoxygen reduction reaction activity of the Pt/C catalyst.The comprehensive experiment has the advantages of easy control of reaction conditions,simple and convenient operation,and strong reproducibility.The combination of material preparation and physicochemical characterization can not only exercise undergraduates'experimental operation skills,but also help to cultivate students'innovative thinking and scientific research ability.
作者
宋树芹
王毅
王昆
Song Shuqin;Wang Yi;Wang Kun(School of Materials Science and Engineering,Sun Yat-sen University,Guangzhou,510275,China;School of Chemical Engineering and Technology,Sun Yat-sen University,Zhuhai,519000,China)
出处
《中国现代教育装备》
2020年第23期23-26,共4页
China Modern Educational Equipment
关键词
溶剂热法
PT/C催化剂
氧还原反应
催化活性
综合实验设计
solve thermal method
Pt/C catalyst
oxygen reduction reaction
electro catalytic activity
comprehensive experimental design
