Related Experiment Video
Updated: May 29, 2025
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Highly conductive composite anode catalysts featuring a fused Ir nano-network towards proton exchange membrane
Lu Zhang1, Qiannan Wu1,2, Xiao Zhao3
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China. chenhui@jlu.edu.cn.
Abstract:
A boride-assisted method has been presented to synthesize a fused Ir nano-network supported on TiO2 as highly conductive composite catalysts (Ir NN@TiO2) for the reaction of oxygen evolution in acid. The Ir NN@TiO2 can be utilized to construct an anode catalyst layer of a proton exchange membrane water electrolyzer (PEMWE) with a low iridium content of 0.3 mgIr cm-2. The low-iridium-loading PEMWE exhibits excellent performance, i.e., 2.9 A cm-2@1.9 V with Nafion 115 membrane, and operates stably at a current density of 1.0 A cm-2 for over 1000 h.
