面对电解水中氢析出、氧析出效率低下的问题，开发高活性的非贵金属催化剂是十分有必要的。如何提高金属材料的导电性、稳定性以及分散性并构建高活性的催化界面是提高金属材料电催化活性的关键。本项目拟从层状双金属氢氧化物（LDHs）纳米片阵列出发，利用LDHs在微观结构上的整体均匀性，将具有电催化活性的过渡金属组分引入LDHs层板；将LDHs纳米片阵列与含氮聚合物进行可控组装获得复合前驱体，经高温热解、结构转变获得碳/金属纳米片阵列，并进一步利用等离子体刻蚀技术在纳米片阵列的表面构建介孔结构，获得三维多孔碳/金属纳米片阵列并用于电催化反应。研究阵列材料的组成、微结构与电催化性能之间的关系，探讨如何提高活性位点的数量和本征活性；构筑碱性电解池，研究电催化剂在真实环境的电催化性能，为水电解所需双功能电催化剂的制备提供一定的方法指导。

Because of the low efficiency of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in overall water splitting, development of non-noble meal-based electrocatalysts with high activity is very necessary. How to enhance the electroconductibility, stability, and dispersity of metal materials, and build highly active interfaces is the key to improve the electrocatalytic activity. In this project, a facile yet effective strategy to craft porous carbon/metal nanosheet arrays will be established via a thermal decomposition of layered double hydroxides (LDHs) nanosheet arrays (denoted LDHs-NSA) and polymer hybrid precursors (LDHs-NSA/polymer), which are synthesized via a controllable way. And then, by means of high-temperature calcination, the as-synthesized precursors can be transformed structurally to various carbon/metal nanosheet arrays. Finally, the porous carbon/metal nanosheet arrays will be formed by plasma etching of carbon/metal nanosheet arrays. The electrocatalytic performance of as-synthesized carbon/metal nanosheet array will be investigated in HER and OER. Meanwhile, the relationship between the compositions and microstructure of as-synthesized arrays, and their electrocatalytic performance will be investigated. Moreover, the as-synthesized arrays will be further applied in overall water splitting. Therefore, this project will provide a way to preparation of bifunctional non-noble metal electrocatalysts for efficient overall water splitting.