Nano-metal diborides-supported anode catalyst with strongly coupled TaOx/IrO2 catalytic layer for low-iridium-loading proton exchange membrane electrolyzer
Jilin University · State Key Laboratory of Inorganic Synthesis and Preparative Chemistry · +2 more institutions
Abstract
Abstract The sluggish kinetics of oxygen evolution reaction (OER) and high iridium loading in catalyst coated membrane (CCM) are the key challenges for practical proton exchange membrane water electrolyzer (PEMWE). Herein, we demonstrate high-surface-area nano-metal diborides as promising supports of iridium-based OER nanocatalysts for realizing efficient, low-iridium-loading PEMWE. Nano-metal diborides are prepared by a novel disulphide-to-diboride transition route, in which the entropy contribution to the Gibbs free energy by generation of gaseous sulfur-containing products plays a crucial role. The nano-metal diborides, TaB 2 in particular, are investigated as the support of IrO 2 nanocatalysts, which…
Citation impact
- FWCI
- 15.35
- Percentile
- 100%
- References
- 74
Authors
9- YWYuannan WangCorresponding
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- MZMingcheng Zhang
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- ZKZhenye Kang
Hainan University
- LSLei Shi
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- YSYucheng Shen
Jilin University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
Topics & keywords
- Iridium
- Nanomaterial-based catalyst
- Proton exchange membrane fuel cell
- Materials science
- Catalysis
- Chemical engineering
- Electrocatalyst
- Inorganic chemistry