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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >NiCo layered double hydroxides derived Ni0.67Co0.33(PO3)(2) as stable and efficient electrocatalysts for overall water splitting
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NiCo layered double hydroxides derived Ni0.67Co0.33(PO3)(2) as stable and efficient electrocatalysts for overall water splitting

机译：Nico层状双氢氧化物衍生Ni0.67CO0.33（PO3）（2），作为整体水分裂的稳定和有效的电催化剂

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摘要

The synthesis of highly efficient non-noble bifunctional electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in the same electrolyte is important for the industrial application of electrocatalytic water splitting. Herein, non-noble bifunctional electrocatalyst Ni0.67Co0.33(PO3)(2) nets with optimized morphology were successfully synthesized. Owing to the micropores with the accelerated electrolyte and gases transfer and nanopores architecture with more exposed active edge sites, the self-supported Ni0.67Co0.33(PO3)(2)-12 h electrode exhibits a superior water splitting performance. Impressively, the Ni0.67C o(0.33)(PO3)(2)-12 h electrode only needs a cell voltage of 1.46 V to achieve 10 mA/cm(2) and shows over 22 h stability at 10, 50 and 100 mA/cm(2), respectively. This present work suggests a unique and earth abundant material synthesis method for water electrolysis, which has broad prospects for practical water splitting application. (C) 2021 Elsevier B.V. All rights reserved.
机译：在同一电解液中合成高效的非贵金属双功能电催化剂，用于析氢反应（HER）和析氧反应（OER），对于电催化水裂解的工业应用具有重要意义。在此，非贵金属双功能电催化剂Ni0。67Co0。成功合成了形态优化的33（PO3）（2）网络。由于具有加速电解质和气体转移的微孔和具有更多暴露活性边缘位置的纳米孔结构，自支撑Ni0。67Co0。33（PO3）（2）-12H电极具有优异的析水性能。令人印象深刻的是，Ni0。67co（0.33）（PO3）（2）-12h电极只需要1.46v的电池电压就可以达到10ma/cm2，并且在10ma/cm2、50ma/cm2和100ma/cm2下分别显示出22h以上的稳定性。本研究为水电解提供了一种独特且土壤丰富的材料合成方法，具有广阔的实际应用前景。（c）2021爱思唯尔B.V.保留所有权利。

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