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dc.contributor.author曹龙生
dc.contributor.author万磊
dc.contributor.author邵志刚
dc.contributor.author俞红梅
dc.contributor.author侯明
dc.contributor.author衣宝廉
dc.contributor.authorCAO Long-sheng
dc.contributor.authorWAN Lei
dc.contributor.authorSHAO Zhi-gang
dc.contributor.authorYU Hong-mei
dc.contributor.authorHOU Ming
dc.contributor.authorYI Bao-lian
dc.date.accessioned2019-01-18T01:06:10Z
dc.date.available2019-01-18T01:06:10Z
dc.date.issued2018-12-28
dc.identifier.citation电化学,2018,24(06):697-706.
dc.identifier.issn1006-3471
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.180848
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/171118
dc.description.abstract利用溶剂热法,在N,N-二甲基甲酰胺(DMF)溶剂中共同还原乙酰丙酮铂(Pt(acac)2)和乙酰丙酮铜(Cu(acac)2)制备PtCu八面体合金催化剂. PtCu2八面体表现出明显的晶格收缩、较高比例的非氧化态Pt单质和较高的电子结合能,进而表现出较弱的含氧物种吸附强度和较低的d 带中心位置. 系统研究结构导向剂对PtCu合金形貌影响. 在半电池测试中,由于PtCu2具有均匀分散的规则八面体形貌结构,导致在0.9 V vs. RHE处氧还原(ORR)的质量比活性和面积比活性分别是Pt/C(JM)的6.3和27.2倍,并在加速衰减测试后其ORR的质量比活性仍达到Pt/C(JM)的4.5倍.
dc.description.abstractPlatinum acetylacetonate (Pt(acac)2) and copper acetylacetonate (Cu(acac)2) were co-reduced to prepare PtCu2 octahedron alloy catalyst in N,N-dimethylformamiade by solvothermal method. The PtCu2 showed lattice compression, and high ratio of non-oxidized Pt with high electronic binding energy. All those structural features contributed to weak adsorption strength of oxygen species on Pt and lower d-band centre position. The influence of structure-directing agent on morphology of PtCu alloy was systematically studied. In the half cell test, as a result of the uniform morphology and regular octahedron of PtCu2 formed, the mass activity and area specific activity of PtCu2/C reached 6.2 and 27.2 times, respectively, relative to those of Pt/C at 0.9 V vs. RHE. Furthermore, after the accelarated degradation test, the mass activity of PtCu2/C still reached 4.5 times compared to that of Pt/C.
dc.description.sponsorship国家重点研发计划(No. 2018YFB0105601)、国家自然科学基金(No. 21576257)以及国家自然科学基金-辽宁省联合基金(No. U1508202)资助
dc.language.isozh
dc.publisher厦门大学《电化学》编辑部
dc.relation.ispartofseries庆祝衣宝廉院士八十华诞专辑
dc.relation.ispartofseriesSpecial Issue in Honor of Professor Baolian Yi on His 80th Birthday
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10529.shtml
dc.subject燃料电池
dc.subject氧还原
dc.subjectPtCu
dc.subject八面体
dc.subjectfuel cells
dc.subjectoxygen reduction
dc.subjectPtCu
dc.subjectoctahedron
dc.titlePtCu2八面体形貌调控及氧还原电催化性能研究
dc.title.alternativeMorphological Control of PtCu2 Octahedron and Oxygen Reduction Electrocatalytic Performance of PtCu for Fuel Cell
dc.typeArticle
dc.description.note作者联系地址:1. 中国科学院大连化学物理研究所, 燃料电池系统与工程研究组, 大连 116023;2. 中国科学院大学 北京 100049; 3. 清华大学化学工程系, 北京 100084
dc.description.noteAuthor's Address: 1. Fuel Cell System and Engineering Group, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China; 3. Department of Chemcial Engineering, Tsinghua University, Beijing 100084, China
dc.description.note通讯作者E-mail:zhgshao@dicp.ac.cn


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