摘要
文章简要阐述了微波电介质加热原理,解释了Pt/C催化剂制备时分散体系的选择依据,考察了脉冲微波加热与连续微波加热两种模式对微波辅助乙二醇法合成Pt/C催化剂甲醇电催化氧化性能的影响。研究发现:脉冲微波加热模式制备的催化剂的性能显著好于连续微波加热模式,当微波输出功率为620 W,采用10 s ON/10 s OFF的脉冲模式加热5次时,制得的Pt/C催化剂的甲醇电氧化性能最好。
In the present paper, the theory of microwave dielectric heating has been stated and the selection criteria for the disperse system of synthesizing catalyst have been discussed. Moreover, Pt/C catalysts were obtained through the microwave assisted EG method and their electrochemical performances were evaluated. It can be concluded that the microwave time and mode can significantly affect Pt/C catalysts＂ performance. With the output power of 620W, in pulse mode of 10 s ON/10 s OFF for 5 times, the as-prepared Pt/C catalyst exhibited the best electro-chemical performance towards methanol electro-oxidation.
出处
《广东化工》
CAS
2014年第24期6-7,共2页
Guangdong Chemical Industry
