超薄圆形Pd纳米片自组装体的合成及其催化性能
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- 英文论文题名：One-pot Synthesis of self-assemblies of Ultra-thin Pd Nanosheets
- 论文作者：王欢 ; 曾蓓蓓 ; 赵燕熹 ; 黄涛
- 英文论文作者：Huan Wang ; Beibei Zeng ; Yanxi Zhao ; Tao Huang ; Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission &Ministry of Education ; Hubei Province ; College of Chemistry and Materials Science ; South-Central University for Nationalities
- 年：2016
- 作者机构：中南民族大学化学与材料科学学院催化材料科学国家民委-教育部重点实验室;
- 论文关键词：钯 ; 纳米片 ; 自组装 ; 一氧化碳
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十七分会：纳米催化
- 语种：中文
- 分类号：O614.823;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十七分会 ; 纳米催化
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：210k
- 原文格式：D
- 会议级别：全国
摘要
金属纳米颗粒的性质与其形状、大小、组成和结构密切相关。人们采用液相法、模版法、电化学法等技术成功合成出四面体、立方体、二十面体、纳米棒、纳米线、六角纳米片、内凹多面体等不同形貌的金属Pd纳米颗粒~([1-5])。但是,规则的二维金属Pd纳米结构的合成报道较少~([6])。我们采用油浴加热法,以钯盐为前驱体、聚乙烯吡咯烷酮(PVP)为稳定剂、CO为还原剂,在DMF/水混合溶剂中一步合成得到形貌单一、大小均匀的超薄Pd纳米圆片自组装纳米结构,溶液呈蓝色。产物用透射电子显微镜(TEM)、粉末X-射线衍射(XRD)以及X-射线光电子能谱(XPS)等进行了表征,初步探索了其生成机理。所得到的超薄自组装Pd纳米片对甲酸的电催化氧化活性约为商业钯黑的2.1倍。
Well-defined and uniform self-assemblies of ultra-thin round Pd nanosheets were synthesized by oil-bath heating in one-pot with a palladium salt as a precursor, PVP as a stabilizer, CO as a reducing agent in DMF/water mixed solvent. The final reaction mixture appeared blue. The as-products were characterized by TEM, XRD and XPS. The formation mechanism was investigated. The electrocatalytic activity for formic acid oxidation was 2.1 times greater than that of Pd black.
Well-defined and uniform self-assemblies of ultra-thin round Pd nanosheets were synthesized by oil-bath heating in one-pot with a palladium salt as a precursor, PVP as a stabilizer, CO as a reducing agent in DMF/water mixed solvent. The final reaction mixture appeared blue. The as-products were characterized by TEM, XRD and XPS. The formation mechanism was investigated. The electrocatalytic activity for formic acid oxidation was 2.1 times greater than that of Pd black.
引文
[1]Xiong,Y.;Cai,H.;Wiley,B.J.;Wang,J.;Kim,M.J.;Xia,Y.J.Am.Chem.Soc.,2007,129:3665.
[2]Huang,X.;Tang,S.;Zhang,H.;Zhou,Z.;Zheng,N.J.Am.Chem.Soc.,2009,131:13916.
[3]Huang,X.;Tang,S.;Mu,X.;Dai,Y.;Chen,G.;Zhou,Z.;Ruan F.;Yang Z.;Zheng N.Nature Nanotech.,2011,6:28.
[4]Hu,C.;Lin,K.;Wang X.;Liu S.;Yi J.;Tian Y.;Wu,B.;Chen,G.;Yang,H.;Dai,Y.;Li,H.;Zheng,N.J.Am.Chem.Soc.,2014,136:12856.
[2]Huang,X.;Tang,S.;Zhang,H.;Zhou,Z.;Zheng,N.J.Am.Chem.Soc.,2009,131:13916.
[3]Huang,X.;Tang,S.;Mu,X.;Dai,Y.;Chen,G.;Zhou,Z.;Ruan F.;Yang Z.;Zheng N.Nature Nanotech.,2011,6:28.
[4]Hu,C.;Lin,K.;Wang X.;Liu S.;Yi J.;Tian Y.;Wu,B.;Chen,G.;Yang,H.;Dai,Y.;Li,H.;Zheng,N.J.Am.Chem.Soc.,2014,136:12856.