连续脉冲激光沉积法制备石墨烯基非贵金属催化剂及其氧还原性能研究

Fuel cells have a series of advantages, such as high energy conversion efficiency, renewable fuel resource, environmental friendliness, simple structure and high reliability. The aims of this project are to investigate the synthesis and oxygen reduction properties of graphene-based non-noble metal alloys (Fe, Co, Ni, Cu, Mo) and nitride composites. Pulsed laser deposition will be used to prepare graphene and nitrogen doped graphene on different substrates under low temperatures, followed by in-situ deposition of nanoscale non-noble metal alloys or nitrides on the surface of graphene. Controlling the morphology and size distribution of non-noble metal alloys and nitride nanoparticles can be obtained by adjusting the parameters of pulsed laser deposition process. The properties of the materials will be tested by electrochemical technique and their oxidation-reduction catalytic properties will be studied. Desirable graphene-based non-noble metal alloy and nitride nanoparticles will be developed as cathode catalysts of fuel cells. The successful implementation of this project will improve the performance of oxygen reduction catalysts and reduce the cost of materials. Furthermore, the material preparation method is easy to promote industrialization and thereby, can effectively advance the commercial application of fuel cells.

燃料电池具有能量转化效率高，燃料资源可再生，环境友好度高，结构简单，可靠性高等诸多优点。本项目拟开展石墨烯基非贵金属（Fe、Co、Ni、Cu、Mo等）/合金及其氮化物复合材料的制备及其氧还原性能研究。利用脉冲激光沉积系统尝试在不同基底上低温制备石墨烯、氮掺杂石墨烯，然后，在不打开沉积舱的情况下，继续利用脉冲激光沉积技术在石墨烯材料表面原位沉积纳米级非贵金属/合金及其氮化物。通过调整脉冲激光沉积技术参数，实现非贵金属/合金及其氮化物纳米粒子形貌结构和尺寸分布的调控。利用电化学技术对材料的性能进行测试，研究其氧还原催化性能，寻找理想的石墨烯基非贵金属，用于燃料电池阴极催化剂。该项目的顺利实施，可以提高氧还原催化剂性能，降低材料成本，且材料制备方法便于工业化推广，能够有力推动燃料电池商业化应用。

燃料电池具有能量转化效率高，燃料资源可再生，环境友好度高，结构简单，可靠性高等诸多优点。本项目拟开展石墨烯基非贵金属/合金及其氮化物复合材料的制备及其氧还原性能研究。利用脉冲激光沉积系统尝试在不同基底上低温制备石墨烯、氮掺杂石墨烯，然后，在不打开沉积舱的情况下，继续利用脉冲激光沉积技术在石墨烯材料表面原位沉积纳米级非贵金属/合金及其氮化物。通过调整脉冲激光沉积技术参数，实现非贵金属/合金及其氮化物纳米粒子形貌结构和尺寸分布的调控。利用电化学技术对材料的性能进行测试，研究其氧还原催化性能，寻找理想的石墨烯基非贵金属，用于燃料电池阴极催化剂。该项目的顺利实施，可以提高氧还原催化剂性能，降低材料成本，且材料制备方法便于工业化推广，能够有力推动燃料电池商业化应用。