摘要
目前固体聚合物电解质(SPE)水电解技术析氧催化剂主要是氧化钌、氧化铱等贵金属氧化物,此类贵金属氧化物制备工艺复杂、制作成本高,是制约SPE水电解技术快速发展及工业化的主要原因。研究了几种氧化铱的制备工艺,提出了一种能够有效降低氧化铱粒径、提高催化活性,进而有效降低其载量的新制备工艺。在1 000 mA/cm^2的电流密度下,当氧化铱载量为2.0 mg/cm^2时,电解池电压仅为2.0 V。
At present, the oxygen evolution catalysts for solid polymer electrolyte(SPE) water electrolysis technology are mainly noble metal oxides such as ruthenium oxide and iridium oxide. The preparation process of such precious metal oxides is complex and high production cost, which is the main reason for restricting the rapid development and industrialization of SPE water electrolysis technology. In this paper, the preparation process of iridium oxide was studied, and a new preparation technology which could effectively reduce the iridium particle size and improve the catalytic activity was proposed. At the current density of 1 000 mA/cm^2, the voltage of the electrolytic cell is only 2.0 V when the oxidized iridium load is 2.0 mg/cm^2.
作者
范峰强
姚宇希
侯向理
施柏莉
FAN Feng-qiang;YAO Yu-xi;HOU Xiang-li;SHI Bai-li(Nekson Power Technology Co.,Ltd.,Changxing Zhejiang 313100,China)
出处
《电源技术》
CAS
北大核心
2019年第3期480-482,共3页
Chinese Journal of Power Sources
关键词
SPE
水电解
氧化铱
载量
SPE
water electrolysis
iridium oxide
loads
