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作 者:张均 梁平娟 汤木娥 许新兰 张贤明[1] ZHANG Jun;LIANG Pingjuan;TANG Mue;XU Xinlan;ZHANG Xianming(Engineering Research Center for Waste Oil Recovery Technology and Equipment,Chongqing Technology and Business University,Chongqing 400067,China;School of Metallurgy and Materials Engineering,Chongqing University of Science&Technology,Chongqing 401331,China;School of Chemistry and Chemical Engineering,Chongqing University of Science&Technology,Chongqing 401331,China)
机构地区:[1]重庆工商大学废油资源化技术与装备教育部工程研究中心,重庆400067 [2]重庆科技学院冶金与材料工程学院,重庆401331 [3]重庆科技学院化学化工学院,重庆401331
出 处:《功能材料》2023年第5期5066-5074,共9页Journal of Functional Materials
基 金:中国博士后科学基金项目(2020M683633XB);重庆市博士后科研项目特别资助项目(2011010006422180);教育部平台科技资助项目(fykf201910);重庆市教委科学技术研究项目(KJQN201901527)。
摘 要:直接甲醇燃料电池(DMFCs)是解决能源短缺和环境污染问题的清洁能源之一。甲醇氧化反应(MOR)和氧还原反应(ORR)是DMFCs重要的电极反应,然而其迟缓的动力学过程严重制约其商业化进程。碳材料因具有低成本、高比表面积、发达的孔结构而备受关注。杂原子(氮、硫、磷、硼等)掺杂不仅有助于改善碳的表面惰性来提高导电性能和增加缺陷位点,还能通过强化金属-载体间相互作用提高电化学活性。因此,研发杂原子掺杂碳材料作为ORR催化剂和MOR催化剂载体对推动DMFCs的商业化具有重要意义。综述了杂原子掺杂碳材料常见的制备方法及其在ORR和MOR领域的研究进展,并展望多组分共掺杂、材料稳定性的提升及催化机制的深入剖析是未来研究的方向。Direct methanol fuel cells(DMFCs)are one of the clean energy sources for solving the problems of energy shortage and environmental pollution.Methanol oxidation reaction(MOR)and oxygen reduction reaction(ORR)are important electrode reactions for DMFCs,but their large-scale commercialization is limited by sluggish kinetic processes.In recent years,carbon materials have attracted much attention as promising catalysts for DMFCs due to their low cost,high specific surface area and well-developed pore structure.Especially,heteroatom doping(nitrogen,sulfur,phosphorus,and boron)is not only beneficial for improving the surface inertness of carbon to enhance the electrical conductivity and increase the defect sites,but also boosts the electrochemical activity by strengthening the strong metal-support interactions.Therefore,developing heteroatom-doped carbon materials which specialized for catalyst or support toward DMFCs is significant to promote the commercialization of DMFCs.In this review,the common preparation methods of heteroatom-doped carbon materials and their application in ORR and MOR are summarized.Ultimately,it is expected that the future developing direction of heteroatom doping carbonaceous materials is aimed at multicomponent co-doping,promotion of stability and in-depth analysis on catalytic reaction mechanism.
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