固体聚合物电解质(SPE)电解水技术是目前国际上最先进的水电解制氢技术之一，催化剂与离子膜一体化的膜电极组件是SPE电解技术的核心部件。开发具有良好催化活性和良好稳定性的非贵金属阴极复合膜电极是实现SPE技术低成本电解水制氢的关键材料。本项目采用浸渍-还原和电化学沉积法将纳米MoS2催化剂负载于碳纳米纤维修饰的炭纸表面，再与离子交换膜热压成形组装成Nafion膜、催化剂和扩散层三合一的新型高效析氢复合膜电极。通过电解水过程中析氢反应活化能、析氢过电位和析氢反应电极过程控制步骤的动力学参数及其影响因素的系统研究，揭示其析氢催化机理，建立阴极复合膜电极的组成－结构－析氢催化性能—稳定性之间的相互关系， 最终形成完整的析氢复合膜电极的构效关系与设计理论，为合理设计制备活性高、过电位低、性能稳定、低成本的SPE析氢复合膜电极提供初步的理论基础和新思路。

The solid polymer electrolyte(SPE) water elctrolysis is one of the most advanced technologies internationally for hydrogen production by water electrolysis.The integrated Memberane Electrode Assembly(MEA) of catalyst and ion exchange memberane is the key to SPE. The development of non-noble metal cathodic MEA with good electrocatalytic activity and stability is a key material to realize SPE water electrolysis at low cost.In this project, we will firstly prepare nano MoS2 catalysts on carbon nanofiber modified carbon paper via impregnation-reduction or electrochemical deposition methods,and then construct the integrated novel high performance hydrogen evolution MEA from Nafion membrane, catalyst and diffusion layer by hot pressing with Nafion membrane.The purpose of this project is to disclose the relationship of MEA composition-structure-electrocatalytic activity for hydrogen evolution-stability by systematic study on activation energy, overpotential of HER and kinetic parameters in electrode process in order to uncover its catalytic mechanism for HER. This work can help to provide an elementary theoretical foundation and new methods for reasonablely designing and preparing new SPE MEA material for HER with high activity, low overpotential of hydrogen evolution and good stability as well as low cost.