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Interface Engineering of MOF-Derived NiMoO4@NiFeP Core–Shell Nanorods for Energy-Saving Hydrogen Evolution via Urea Electrolysis
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-03-12 , DOI: 10.1021/acs.inorgchem.3c00074
Yikang Cong 1 , Kai Chen 1 , Xingnan Chen 1 , Wei Xu 1, 2 , Anqi Cai 1 , Ting-Ting Li 1, 2
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-03-12 , DOI: 10.1021/acs.inorgchem.3c00074
Yikang Cong 1 , Kai Chen 1 , Xingnan Chen 1 , Wei Xu 1, 2 , Anqi Cai 1 , Ting-Ting Li 1, 2
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The development of multifunctional and durable electrocatalysts for hydrogen energy production via an energy-saving avenue is urgently desired. Urea electrolysis by substituting the oxygen evolution reaction (OER) with a more oxidizable urea oxidation reaction (UOR) has been widely used to realize energy-saving hydrogen production. Herein, metal–organic framework (MOF)-derived interface-engineered NiMoO4@NiFeP core–shell nanorods as electrocatalysts are constructed. Due to the integration of the advantages of the interface synergistic effect between the NiMoO4 core and NiFeP shell, the as-fabricated NiMoO4@NiFeP electrocatalyst demonstrates remarkable electrocatalytic performance toward the hydrogen evolution reaction (HER), OER, and UOR. In the urea electrolysis system, an ultralow cell voltage of 1.30 V is needed to drive the current density of 10 mA cm–2, which is 140 mV lower than that of the conventional overall water splitting system. The cost-efficient and high-performance NiMoO4@NiFeP electrocatalyst paves the way to explore practical applications of energy-saving hydrogen production.
中文翻译：
MOF 衍生的 NiMoO4@NiFeP 核壳纳米棒的界面工程，用于通过尿素电解节能析氢
迫切需要通过节能途径开发用于氢能生产的多功能和耐用的电催化剂。通过用更易氧化的尿素氧化反应（UOR）代替析氧反应（OER）的尿素电解已被广泛用于实现节能制氢。在此，构建了金属有机框架（MOF）衍生的界面工程 NiMoO 4 @NiFeP 核壳纳米棒作为电催化剂。由于结合了NiMoO 4核和NiFeP壳之间的界面协同效应的优点，制备的NiMoO 4@NiFeP 电催化剂对析氢反应 (HER)、OER 和 UOR 表现出卓越的电催化性能。在尿素电解系统中，需要1.30 V的超低电池电压来驱动10 mA cm –2的电流密度，比传统的整体水分解系统低140 mV。具有成本效益的高性能NiMoO 4 @NiFeP电催化剂为探索节能制氢的实际应用铺平了道路。
更新日期：2023-03-12
中文翻译：
MOF 衍生的 NiMoO4@NiFeP 核壳纳米棒的界面工程，用于通过尿素电解节能析氢
迫切需要通过节能途径开发用于氢能生产的多功能和耐用的电催化剂。通过用更易氧化的尿素氧化反应（UOR）代替析氧反应（OER）的尿素电解已被广泛用于实现节能制氢。在此，构建了金属有机框架（MOF）衍生的界面工程 NiMoO 4 @NiFeP 核壳纳米棒作为电催化剂。由于结合了NiMoO 4核和NiFeP壳之间的界面协同效应的优点，制备的NiMoO 4@NiFeP 电催化剂对析氢反应 (HER)、OER 和 UOR 表现出卓越的电催化性能。在尿素电解系统中，需要1.30 V的超低电池电压来驱动10 mA cm –2的电流密度，比传统的整体水分解系统低140 mV。具有成本效益的高性能NiMoO 4 @NiFeP电催化剂为探索节能制氢的实际应用铺平了道路。
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