联氨(抗抑郁剂)
材料科学
制氢
脱氢
电催化剂
催化作用
化学工程
电解质
电解
阳极
无机化学
氢
阴极
分解水
电解水
电化学
锂(药物)
解吸
纳米棒
氢经济
氢燃料
双金属片
可逆氢电极
直接乙醇燃料电池
吸附
化学动力学
纳米颗粒
高压电解
聚合物电解质膜电解
原电池
Pourbaix图
作者
Xinru Zhao,Hongshun Zheng,Huachuan Sun,Mingpeng Chen,Boxue Wang,Qingjie Lu,Bin Xiao,Tong Zhou,Dequan Li,Guoyang Qiu,Jin Zhang,Yumin Zhang,Xuefei Xu,Tianwei He,Qingju Liu
标识
DOI:10.1002/aenm.202504983
摘要
ABSTRACT Hydrazine‐assisted water electrolysis provides a viable route toward energy‐conservative hydrogen generation while simultaneously addressing the environmental concerns associated with hazardous hydrazine pollutants. Herein, Ru nanoparticles are anchored onto Fe‐NiMoO 4 hollow nanorods through an etching and solvothermal method, resulting in the formation of Ru/Fe‐NiMoO 4 as a dual‐functional electrocatalyst for both the hydrogen evolution reaction (HER) and the hydrazine oxidation reaction (HzOR). Studies indicate that the introduction of Fe alters the electronic properties around the active species Ru, which alters the electronic properties of the catalyst and optimally tunes the d‐band center of Ru/Fe‐NiMoO 4 to an optimal position. This modification balances the adsorption and desorption of H* at each metal active site and enhances the reaction kinetics of the corresponding hydrazine dehydrogenation. For HER and HzOR, only −167 and 37 mV working potentials are required to achieve 1000 mA cm −2 , respectively. Notably, when Ru/Fe‐NiMoO 4 is employed as both the cathode and anode in an overall hydrazine‐assisted water splitting (OHzS) system, attaining 500 mA cm −2 with an exceptionally low cell potential of 0.23 V, while maintaining stable operation for over 100 h. Additionally, the assembled direct liquid N 2 H 4– H 2 O 2 fuel cell (DHHPFC) delivers a maximum power density of 336 mW cm −2 at 80°C. This work opens new avenues for efficient hydrogen production through hydrazine‐assisted processes.
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