The commercialization of proton exchange membrane fuel cells(PEMFCs) is still restricted by the well-known dilemma,that is,the heavy dependence of using expensive plantinum(Pt) catalyst to negotiate the sluggish oxyge...The commercialization of proton exchange membrane fuel cells(PEMFCs) is still restricted by the well-known dilemma,that is,the heavy dependence of using expensive plantinum(Pt) catalyst to negotiate the sluggish oxygen reduction reaction(ORR) kinetics in fuel cell cathodes.Here,a carbon-supported PtC o2Ni2 alloy catalyst with low Pt usage was synthesized via a simple method,which exhibited exceptional ORR activity with a more positive half-wave potential(E1/2) ~57 m V,which was more positive than the state-of-the-art Pt/C catalysts.Moreover,the alloy catalyst performs excellent durability after 10,000 harsh cycles compared with that of Pt/C catalyst in acidic solution,which may be developed as a promising alternative for Ptbased catalysts in fuel cell technology.展开更多
基金supported by the National Basic Research Program of China (2018YFA0702001)the National Natural Science Foundation of China (22225901,21975237 and 51702312)+5 种基金the Fundamental Research Funds for the Central Universities (WK2340000101)the University of Science and Technology of China Research Funds of the Double First-Class Initiative (YD2340002007 and YD9990002017)the Open Funds of the State Key Laboratory of Rare Earth Resource Utilization (RERU2022007)the China Postdoctoral Science Foundation (2023M733371,2022M723032,and 2023T160617)the Natural Science Foundation Youth Project of Anhui Province (2308085QB37)the China National Postdoctoral Program for Innovative Talents (BX2023341)。
基金supported by the Ministry of Science and Technology of China(2014CB931800 and 2013CB933900)the National Natural Science Foundation of China(21431006 and 91227103)the Deanship of Scientific Research(DSR),King Abdulaziz University(89-130-35-HiCi)
文摘The commercialization of proton exchange membrane fuel cells(PEMFCs) is still restricted by the well-known dilemma,that is,the heavy dependence of using expensive plantinum(Pt) catalyst to negotiate the sluggish oxygen reduction reaction(ORR) kinetics in fuel cell cathodes.Here,a carbon-supported PtC o2Ni2 alloy catalyst with low Pt usage was synthesized via a simple method,which exhibited exceptional ORR activity with a more positive half-wave potential(E1/2) ~57 m V,which was more positive than the state-of-the-art Pt/C catalysts.Moreover,the alloy catalyst performs excellent durability after 10,000 harsh cycles compared with that of Pt/C catalyst in acidic solution,which may be developed as a promising alternative for Ptbased catalysts in fuel cell technology.
