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High-Stability RuO2/MoO3 Electrocatalyst for the Oxygen Evolution Reaction in Proton-Exchange-Membrane Water Electrolysis
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2023-12-08 , DOI: 10.1021/acsaem.3c02795
Wenqing Ren 1 , Kaixin Wang 1 , Dan Lu 1 , Chenxi Xu 1
Affiliation  

The slow kinetics and low durability of catalysts in the oxygen evolution reaction (OER) have been long-standing issues. The scarcity and high cost of iridium have posed limitations on its widespread implementation. Therefore, a noniridium catalyst with high activity and stability is the key for proton-exchange-membrane water electrolysis. This work reports a high activity and stability RuO2/MoO3 catalyst for water electrolysis. The catalyst exhibits an oxygen evolution reaction (OER) performance with an overpotential of 267 mV at 10 mA cm–2 and demonstrates outstanding long-term stability. Moreover, the PEMWE cell-based RuO2/MoO3 anode achieves an overpotential of 0.777 V at 2 A cm–2 and high stability for 12 h at 1 A cm–2.

中文翻译:

用于质子交换膜水电解析氧反应的高稳定性 RuO2/MoO3 电催化剂

析氧反应(OER)中催化剂的缓慢动力学和低耐久性一直是长期存在的问题。铱的稀缺性和高成本限制了其广泛应用。因此,高活性和稳定性的非铱催化剂是质子交换膜水电解的关键。这项工作报道了一种高活性和稳定性的用于水电解的RuO 2 /MoO 3催化剂。该催化剂表现出析氧反应 (OER) 性能,在 10 mA cm –2下过电势为 267 mV ,并表现出出色的长期稳定性。此外,基于PEMWE电池的RuO 2 /MoO 3阳极在2 A cm –2下实现了0.777 V的过电势,并在1 A cm –2下实现了12小时的高稳定性。
更新日期:2023-12-08
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