Pt-金属磷化物复合材料在催化甲醇电氧化上的研究进展  

Research Progress of Pt-Metal Phosphide Composite Based Catalysts for Methanol Electro-oxidation

作　　者：张书泉 周绍平 林宇婷 程云龙 王粤琪 Zhang Shu-quan;Zhou Shao-ping;Lin Yu-ting;Cheng Yun-long;Wang Yue-qi

机构地区：[1]福州大学至诚学院化学工程系,福州350002

出　　处：《化工设计通讯》2022年第11期6-9,共4页Chemical Engineering Design Communications

基　　金：国家级大学生创新创业项目(202113470003)。

摘　　要：直接甲醇燃料电池具有能量密度高,绿色环保,燃料运输、储存方便等特点,是最具有潜力的未来小型化学电源与可移动电源之一。甲醇电催化氧化是直接甲醇燃料电池的核心反应,因此研发高效、低成本、长寿命的甲醇电氧化催化剂,是当前该领域的研究重点。由于在酸性条件下进行甲醇电催化氧化过程中Pt的不可替代性,开发能够促进甲醇转化为二氧化碳和水的助催化剂是当前主要的研究方向。过渡金属磷化物由于其导电性好,种类丰富,优异地促进水分解产生-OH的能力,非常适合于作为Pt的助催化剂与载体材料。因此,总结了近年来用于催化甲醇电氧化的几类Pt-金属磷化物复合催化剂的研究进展,着重阐述了甲醇电氧化的反应机理,复合催化剂各组分在甲醇电氧化各阶段的作用,复合催化剂的形貌特征、催化活性,以及复合催化剂中不同组分之间协同作用等。最后对目前应用于甲醇电氧化的Pt-金属磷化物复合催化剂的缺点以及未来的发展方向进行了展望。Direct methanol fuel cell has the characteristics of high energy density, green environmental protection, convenient fuel transportation and storage, etc. It is one of the most promising future small chemical power sources and mobile power sources. Methanol electrocatalytic oxidation is the core reaction of direct methanol fuel cells, so the development of high-efficiency, low-cost and long-life methanol electro-oxidation catalysts is the current research focus in this field. Due to the irreplaceability of Pt in the electrocatalytic oxidation of methanol under acidic conditions, the development of cocatalysts that can promote the conversion of methanol to carbon dioxide and water is the current main research direction. Transition metal phosphides are very suitable as Pt cocatalysts and support materials due to their good electrical conductivity, rich species, and excellent ability to promote water splitting to generate-OH. This paper summarizes the research progress of several types of Pt-metal phosphide composite catalysts for methanol electro-oxidation in recent years. Morphological characteristics of catalysts, catalytic activity,and synergy between different components in composite catalysts. Finally, the shortcomings and future development directions of Pt-metal phosphide composite catalysts currently used in methanol electrooxidation are prospected.

关 键 词：直接甲醇燃料电池 甲醇电氧化 金属磷化物 Pt基催化剂 复合催化剂 

分 类 号：TQ152[化学工程—电化学工业]