项目名称： 基于多源协同效应构建的Pt(Pd)-M/掺杂石墨烯材料的制备及其电催化性能研究

项目编号： No.21501173

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 王要兵

作者单位： 中国科学院福建物质结构研究所

项目金额： 20万元

中文摘要： 直接醇燃料电池技术的发展对缓解我国能源危机与环境污染问题有着重要的现实意义，其发展最大瓶颈在于阳极催化剂的低活性与高成本。本项目针对当前Pt/Pd基催化剂结构与性能的关系及其催化机制不清的现状，在我们前期对具有协同效应阳极催化材料研究基础之上，设计并制备一系列的Pt(Pd)-M/非金属掺杂石墨烯阳极催化材料，并对其结构和电催化性能进行表征，理清材料组分及其结构与小分子电氧化的活性与稳定性之间的关系，揭示存在多源协同效应的催化剂体系的内在规律及其作用机制。与现有的阳极催化剂研究相比，本项目创新点在于构筑各种具有多源协同催化效应的阳极催化材料，并系统揭示具有多源协同催化效应材料的结构特征及其对小分子电氧化的促进机制，为设计新型高效的电氧化催化剂提供理论指导。通过本项目研究，预计可筛选出1-3种新型高效具有实用价值的电氧化催化剂，力求推动燃料电池阳极催化剂的发展，为直接醇燃料电池实际应用做出贡献

中文关键词： 设计合成；核壳结构；电催化；协同效应

英文摘要： Development the technologies of direct alcohol fuel cell are strategically important to ease china's energy crisis and environmental pollution, the biggest bottleneck is low activity and high cost of the anode catalyst. The catalytic mechanism of Pt/Pd-based catalysts and relationship between structure and catalytic activity were still unclear. Based on our previous work on the anode catalysts with synergistic effect, we design and synthesis a series of Pt(Pd)-M/doped graphene anode catalysts with different structures and electrocatalytic properties, the relationship between the structure characteristics and small organic molecules electrooxidation activity and stability on the catalysts is investigated , the multi-source synergistic effect and its catalytic mechanism is also explored. Compared with the study of existing anode catalytic materials, the innovation of this project is to construct a series of different structural anode catalyst materials with multi-source synergistic catalytic effect, the structure characteristics and promoted mechanism of as-prepared catalysts can be also discovered. This provides theoretical guidance for the design of efficient anode catalysts for small organic molecules oxidation. It is expected to obtain one to three new and efficient anode catalytic materials with practical value for small organic molecules oxidation via implementing this project, and promote development of anode catalysts and contribution to application of direct alcohol fuel cell.

英文关键词： design and syhthsis;core-shell;electrocatalysis;synergetic effect