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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >MOF-derived Mn doped porous CoP nanosheets as efficient and stable bifunctional electrocatalysts for water splitting
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MOF-derived Mn doped porous CoP nanosheets as efficient and stable bifunctional electrocatalysts for water splitting

机译：MOF衍生的Mn掺杂多孔COP纳米蛋白酶作为水分裂的高效稳定的双官能电催化剂

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摘要

Searching for highly active and stable bifunctional electrocatalysts for overall water splitting, e.g., for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), is dominating in terms of bringing future renewable energy storage and conversion processes to reality. In this work, a kind of two-dimensional ultrathin manganese (Mn) doped polyhedral cobalt phosphide (Mn-CoP) has been synthesized via the etching-carbonization-phosphidation of Co-centered metal-organic frameworks. The as-prepared porous Mn-CoP nanosheets had a larger specific surface area and higher porosity, furnishing them with more plentiful catalytically active sites than their counterpart hollow CoP and Mn-CoP nanoparticles, and thus showed much better electrocatalytic activity for both HER and OER in acidic and alkaline media. In addition, the Mn-CoP nanosheets also demonstrated excellent durability after long-term operation. These high performances are attributed to the synergistic effects of the CoP nanosheets with intrinsic activity, the graphitic carbon and the controllable electronic structure doped by Mn and N elements. This synthetic methodology of using a classical MOF as a precursor to build a new 2D sheet-like composite may create opportunities to search for highly efficient and robust non-precious metal catalysts for energy-related reactions.
机译：寻找高活性和稳定的双功能电催化剂，用于整体水分裂，例如，对于氢进化反应（她）和氧气进化反应（OER），在将未来的可再生能量储存和转换过程带来现实方面，主要是主导。在这项工作中，通过蚀刻 - 碳化 - 磷化磷化磷化 - 碳化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 碳化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化 - 磷化铝，通过环形金属 - 有机骨架的蚀刻 - 碳化 - 碳化 - 在该作品中。制备的多孔Mn-COP纳米片具有较大的比表面积和更高的孔隙率，用比它们的对应空心COP和MN-COP纳米颗粒更丰富的催化活性位点提供更丰富的催化活性位点，因此为她和伊尔提供了更好的电催化活性在酸性和碱性介质中。此外，MN-COP纳米片也在长期运行后表现出优异的耐久性。这些高性能归因于COP纳米片具有内在活动的协同效应，石墨碳和由Mn和N元件掺杂的可控电子结构。这种合成方法使用经典MOF作为构建新的2D片状复合材料的前体可以创造用于寻找能量相关反应的高效且稳健的非贵金属催化剂的机会。

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    Li Yinle; Jia Baoming; Chen Boyuan; Liu Qinglin; Cai Mengke; Xue Ziqian; Fan Yanan; Wang Hai-Ping; Su Cheng-Yong; Li Guangqin;

  • 作者单位

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    South China Normal Univ Affiliated High Sch Guangzhou 510630 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

    Sun Yat Sen Univ Sch Chem Lehn Inst Funct Mat MOE Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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