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Ferrocene-Based Metal–Organic Framework Nanosheets as a Robust Oxygen Evolution Catalyst
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-03-26 , DOI: 10.1002/anie.202101878
Jing Liang 1 , Xutao Gao 2 , Biao Guo 1 , Yu Ding 3 , Jiawei Yan 3 , Zhengxiao Guo 2 , Edmund C. M. Tse 2 , Jinxuan Liu 4
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-03-26 , DOI: 10.1002/anie.202101878
Jing Liang 1 , Xutao Gao 2 , Biao Guo 1 , Yu Ding 3 , Jiawei Yan 3 , Zhengxiao Guo 2 , Edmund C. M. Tse 2 , Jinxuan Liu 4
Affiliation
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We report the synthesis of two-dimensional metal–organic frameworks (MOFs) on nickel foam (NF) by assembling nickel chloride hexahydrate and 1,1′-ferrocenedicarboxylic acid (NiFc-MOF/NF). The NiFc-MOF/NF exhibits superior oxygen evolution reaction (OER) performance with an overpotential of 195 mV and 241 mV at 10 and 100 mA cm−2, respectively under alkaline conditions. Electrochemical results demonstrate that the superb OER performance originates from the ferrocene units that serve as efficient electron transfer intermediates. Density functional theory calculations reveal that the ferrocene units within the MOF crystalline structure enhance the overall electron transfer capacity, thereby leading to a theoretical overpotential of 0.52 eV, which is lower than that (0.81 eV) of the state-of-the-art NiFe double hydroxides.
中文翻译:
二茂铁基金属-有机骨架纳米片作为稳健的析氧催化剂
我们通过组装六水合氯化镍和1,1'-二茂铁羧酸(NiFc-MOF / NF)来报告在泡沫镍(NF)上的二维金属有机骨架(MOF)的合成。NiFc-MOF / NF表现出卓越的氧释放反应(OER)性能,在10和100 mA cm -2时的超电势分别为195 mV和241 mV,分别在碱性条件下。电化学结果表明,出色的OER性能源自用作有效电子转移中间体的二茂铁单元。密度泛函理论计算表明,MOF晶体结构中的二茂铁单元提高了整体电子传输能力,从而导致理论上的过电势为0.52 eV,这低于最新技术的NiFe的(0.81 eV)双氢氧化物。
更新日期:2021-05-26
中文翻译:
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二茂铁基金属-有机骨架纳米片作为稳健的析氧催化剂
我们通过组装六水合氯化镍和1,1'-二茂铁羧酸(NiFc-MOF / NF)来报告在泡沫镍(NF)上的二维金属有机骨架(MOF)的合成。NiFc-MOF / NF表现出卓越的氧释放反应(OER)性能,在10和100 mA cm -2时的超电势分别为195 mV和241 mV,分别在碱性条件下。电化学结果表明,出色的OER性能源自用作有效电子转移中间体的二茂铁单元。密度泛函理论计算表明,MOF晶体结构中的二茂铁单元提高了整体电子传输能力,从而导致理论上的过电势为0.52 eV,这低于最新技术的NiFe的(0.81 eV)双氢氧化物。