纳米Ir/SPE电极的制备及其影响因素  

Preparation of Nano-Ir/SPE Electrode and Its Influence Factors

作　　者：魏远娟[1] 闫康平[1] 周成[1] 曹娅[1] 王伟[1] 田间[1] 周菊枚[1] 吉华[1] 桑革[2] 

机构地区：[1]四川大学,四川成都610065 [2]中国工程物理研究院,四川绵阳621900

出　　处：《稀有金属材料与工程》2006年第10期1639-1642,共4页Rare Metal Materials and Engineering

摘　　要：首次选用镍作为中间催化剂,采用吸附还原成长法制备纳米Ir/SPE电极,并就镀浴温度和pH值、H2IrCl6浓度、NaBH4与H2IrCl6配比对电极制备的影响作了深入研究。研究表明:采用吸附还原成长法,以Ni作为中间催化剂,浓度为22mmol·L-1NaBH4与浓度为6mmol·L-1H2IrCl6的混合液作为镀浴,亦即NaBH4与H2IrCl6配比为3.6,pH值为8,镀浴温度为40℃,镀浴时间为24h的条件下,循环镀覆3次,可获得致密、均匀,具有良好电解性能的纳米级Ir/SPE电极。Nano-Ir/SPE electrode was prepared using nickel as middle catalyst through absorption-reduction method. The influence factors, such as bath temperature, pH value of solution, H2IrCI6 concentration and the mol ratio of NaBH4 and H2IrCI6, on preparation of nano-Ir/SPE electrode were studied, Research results showed that the compact nano-Ir/SPE electrode could be prepared through dipping in mixture, which was mixed by 22 mmol.L^-1 NaBH4 and 6 mmol.L^-1 H2IrCI6, with pH value of 8, at 40℃ for 24 hours and 3 times cycling coating.

关 键 词：SPE:纳米:铱:电解水 

分 类 号：TB383.1[一般工业技术—材料科学与工程]