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dc.contributor.author张历朴
dc.contributor.author钮东方
dc.contributor.author张新胜
dc.contributor.authorZHANG Li-pu
dc.contributor.authorNIU Dong-fang
dc.contributor.authorZHANG Xin-sheng
dc.date.accessioned2018-05-10T08:33:21Z
dc.date.available2018-05-10T08:33:21Z
dc.date.issued2018-04-28
dc.identifier.citation电化学,2018,24(02):103-110.
dc.identifier.issn1006-3471
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.170401
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/161084
dc.description.abstract以二苯基-1-甲基咪唑膦(dpim)为配体制备了一种新型的配合物催化剂Ni(dpim)2Cl2. 循环伏安研究表明,Ni(dpim)2Cl2配合物在氮气气氛下表现出两步还原的电化学行为,在-0.7 V下为两电子的不可逆还原,在-1.3 V下为单电子准可逆还原. 向电解液中通入CO2后,在-1.3 V下的还原峰变得不可逆,且其峰电流从0.48 mA·cm-2增大到0.55 mA·cm-2. 在质子源(CH3OH)存在的条件下,该还原峰电流可继续增大到0.72 mA·cm-2. 该研究结果表明,Ni(dpim)2Cl2配合物对CO2还原具有良好的电催化性能,且其电催化还原过程符合ECE机理. 在-1.3 V下恒电位电解得到的还原产物主要为CO,催化转换频率(Turnover of Frenquency, TOF)为0.17 s-1.
dc.description.abstractA new Ni(dpim)2Cl2complex using 2-(diphenylphosphino)-1-methylimidazole (dpim) as ligand was prepared and served as a catalyst for the electrochemical reduction of CO2. The electrochemical redox behavior of Ni(dpim)2Cl2 in CH3CN/TPABF4 solution under nitrogen atmosphere showed the two-electron irreversible reduction at -0.7 V and one-electron quasi-reversible reduction at -1.3 V. After bubbling CO2 into the electrolyte, the reduction peak appeared at -1.3 V became irreversible and the peak current increased from 0.48 mA·cm-2 to 0.55 mA·cm-2. Moreover, the peak current at -1.3 V could further increase to 0.72 mA·cm-2 in the presence of proton source (CH3OH). These observations indicate that the Ni(dpim)2Cl2 exhibited a good electrocatalytic performance toward CO2 reduction and the electrocatalytic reduction process followed the ECE mechanism. The reduction products obtained by the potentiostatic electrolysis (at -1.3 V) were identified to be mainly CO with the catalytic conversion frequency  of 0.17 s-1.
dc.description.sponsorship国家自然科学青年基金项目(No.21303053 )资助
dc.language.isozh
dc.publisher厦门大学《电化学》编辑部
dc.relation.ispartofseries研究论文
dc.relation.ispartofseriesArticles
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10392.shtml
dc.subject双二苯基-1-甲基咪唑膦氯化镍
dc.subject甲醇
dc.subject二氧化碳
dc.subject电催化
dc.subjectNi(dpim)2Cl2
dc.subjectmethanol
dc.subjectCO2
dc.subjectelectrocatalysis
dc.title双二苯基-1-甲基咪唑膦氯化镍的制备及其电催化还原CO2的研究
dc.title.alternativePreparation of Ni(dpim)2Cl2 Complex for the Electrocatalytic Reduction of CO2
dc.typeArticle
dc.description.note作者联系地址:华东理工大学 化学工程联合国家重点实验室,上海 200237
dc.description.noteAuthor's Address: State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
dc.description.note通讯作者E-mail:xszhang@ecust.edu.cn


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