零维Pd基直接乙醇燃料电池催化剂的性能  

Performance of Zero-dimensional Pd-based Catalyst in Direct Ethanol Fuel Cell

作　　者：阮世栋 王旭红[1] 殷仕龙[1] 汪凯鹏 纪网金 嵇梁生 

机构地区：[1]常熟理工学院化学与材料工程学院,江苏常熟215500

出　　处：《材料科学与工程学报》2015年第6期912-917,共6页Journal of Materials Science and Engineering

基　　金：江苏省高校自然科学研究资助项目(15KJD430002)

摘　　要：以NaBH4为还原剂制备了Pd-Ru/C催化剂,研究不同Ru掺杂量对燃料电池阳极催化剂活性等的影响。利用XRD、EDS、TEM等技术表征催化剂的组成及微观结构;同时用BET等测试了催化剂的孔径和粒度分布。采用电化学工作站测试循环伏安特性来表征其电催化性能。测试结果表明,当Pd/Ru摩尔比为2∶1时,催化剂表现出最佳的抗中毒能力,电流稳定在50mA处,并且此时催化剂的电阻较小,具有较好的催化活性为207.40mA·cm-2。NaBH4was used as reducing agent in the preparation of Pd-Ru/C as a catalyst.Effect of different Ru doping level on the catalyst activity were investigated.X-ray diffraction,transmission electronmicroscopy had been used to characterize microstructures and composition of the catalytic.Meanwhile,pore size and particle size distribution had also been tested.Cycle voltammetry was used to represent the electrochemical performance of all catalytics by using electrochemical workstation.It is found that when the molar ratio of Pd/Ru is 2∶1,the catalyst shows the best anti-poisoning ability and lower impendance.At the same time,the stable current is 50 mA and the catalytic activity is 207.40mA·cm-2.

关 键 词：直接乙醇燃料电池 NABH4 Pd-Ru/C 催化 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O643.36[理学—物理化学]