石墨烯具有优异的导热性、导电性、机械强度高、且柔韧性好,同时还兼具高比表面积与易进行化学改性的特点,广泛被作为电催化剂载体/电催化剂用于燃料电池。首先对近5年石墨烯基材料负载贵金属催化剂的制备方法进行了综述;其次着重分析了还原氧化石墨烯载体(rGO)、掺杂石墨烯、改性石墨烯这三类石墨烯基载体负载贵金属在电催化反应中的最新研究成果与进展,并且比较了不同石墨烯基材料构筑电催化剂的电催化性能,探讨了石墨烯基载体作为电催化剂载体的优势和挑战;最后对石墨烯基材料作为电催化剂载体的发展趋势进行了总结和展望。
Graphene is widely used as an electrocatalyst or electrocatalyst carriers for fuel cells because of its excellent thermal and electrical conductivity,high mechanical strength and flexibility,as well as high specific surface area and easy chemical modification.In this paper,firstly,the preparation methods of graphene-based material-supported precious metal catalysts in the past five years were reviewed.Secondly,the latest research achievements and progress of three types of graphene-based supports,namely reduced graphene oxide,doped graphene,and modified graphene,in electrocatalytic reactions were analyzed.The electrocatalytic performance of different graphene-based materials for the construction of electrocatalysts was compared,and the advantages and challenges of graphene-based carriers as electrocatalyst carriers were discussed.Finally,the development trend of graphene-based materials as electrocatalyst carriers was summarized and prospected.
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基金资助
国家自然科学基金(22175057)
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