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dc.contributor.author姚瑞
dc.contributor.author宋玉江
dc.contributor.author李焕巧
dc.contributor.author李佳
dc.contributor.author刘建国
dc.contributor.authorYAO Rui
dc.contributor.authorSONG Yu-jiang
dc.contributor.authorLI Huan-qiao
dc.contributor.authorLI Jia
dc.contributor.authorLIU Jian-guo
dc.date.accessioned2016-05-09T07:32:21Z
dc.date.available2016-05-09T07:32:21Z
dc.date.issued2016-05-03
dc.identifier.citation电化学,2016,22(2):147-156.
dc.identifier.issn1006-3471
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.151151
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/98305
dc.description.abstract纳米尺度的金由于常表现出有趣的尺寸效应和物理化学特性而被大量应用于催化反应中,但是其在电催化反应中的应用却十分有限. 本文以水为溶剂、HAuCl4为前驱体、十二烷基聚乙二醇醚(Brij 35)等为软模板剂、NaBH4为还原剂、活性碳或石墨烯为载体,在温和反应条件下获得担载型金纳米电催化剂. 本文考察并优化了关键制备参数和样品纯化方法,最终确定NaBH4的最佳浓度区间为5 ~ 10 mmol•L-1,Brij 35的最佳浓度约为1 mmol•L-1,在3 ~ 16 oC下金纳米颗粒的尺寸容易控制,石墨烯和活性碳(EC600)是金纳米颗粒的良好载体. 在优化的反应条件下,金纳米颗粒的粒径可以被控制在1 ~ 4 nm. 热处理法可以有效去除表面活性剂,纯化后的担载型纳米金电催化剂在醇类小分子的氧化反应中表现出良好的性能.
dc.description.abstractDue to interesting size effect, physical and chemical properties, nano-scale gold materials have been commonly used to catalytic reactions. However, the application of gold nanomaterials in the field of electrocatalysis is limited. Herein, we report the synthesis of gold nanparticles supported on carbon through chemical reduction of HAuCl4 by NaBH4 under mild conditions in the presence of surfactants as soft templates, carbon black or graphene as a support. We investigated a series of key reaction parameters, including reagent concentration, temperature, the types of carbon supports and surfactants. With the optimum synthetic parameters, we successfully obtained supported 1 ~ 4 nm gold particles. In addition, we found that the heat treatment could effectively remove such a surfactant as Brij35. The purified electrocatalysts demonstrated electrocatalytic activities toward both oxygen reduction reaction and alcohol oxidation reaction.
dc.description.sponsorship国家自然科学基金项目(No. 21003114,No. 21373211,No. 21103163,No. 21306188,No. 21306187)、2015辽宁省“百千万人才工程”(辽百千万立项[2015]19号)、2015“辽宁省高等学校优秀科技人才支持计划”(No. LR2015014)、2015“大连市杰出青年科技人才”(No. 2015R006)及“中央高校基本科研业务费专项资金”(No. DUT15ZD225,No. DUT15RC(3)001)资助
dc.language.isozh
dc.publisher厦门大学《电化学》编辑部
dc.relation.ispartofseries燃料电池电催化和催化剂近期研究专辑(重庆大学 魏子栋教授主编)
dc.relation.ispartofseriesSpecial issue of Electrocatalyst and Electrocatalysis in Fuel Cells(Editor: Professor Wei Zi-dong)
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10262.shtml
dc.subject合成
dc.subject担载型金纳米颗粒
dc.subject电催化
dc.subjectsynthesis
dc.subjectsupported gold nanoparticles
dc.subjectelectrocatalysis
dc.title担载型纳米金的制备参数优化及电催化性能探索
dc.title.alternativePreparation Parameters Optimization and Electrocatalytic Properties of Supported Au Nanoparticles
dc.typeArticle
dc.description.note作者联系地址:1. 大连理工大学 精细化工国家重点实验室&电化学工程实验室,化工学院,辽宁 大连 116024;2. 中国科学院大连化学物理研究所,辽宁 大连 116023;3. 南京大学现代工程与应用科学学院,江苏 南京 210093
dc.description.noteAuthor's Address: 1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China; 2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 3. College of Materials Sciences and Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
dc.description.note通讯作者E-mail:yjsong@dlut.edu.cn


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