离子液体-水界面可控合成金薄膜
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- 英文论文题名：Tunable Synthesis of Gold Films at Ionic Liquid-Aqueous Interface
- 论文作者：姚开胜 ; 卢伟伟 ; 王键吉
- 英文论文作者：Kaisheng Yao ; Weiwei Lu ; Jianji Wang ; School of Chemical Engineering and Pharmaceutics ; Henan University of Science and Technology ; Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals ; Key Laboratory of Green Chemical Media and Reactions ; Ministry of Education ; School of Chemistry and Chemical Engineering ; Henan Normal University
- 年：2016
- 作者机构：化工与制药学院河南科技大学;河南省精细化学品绿色制备协同创新中心教育部绿色化学介质与反应重点实验室化学化工学院河南师范大学;
- 论文关键词：离子液体 ; 可调的离子液体-水界面 ; 金薄膜
- 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-第三十三分会：绿色化学
- 语种：中文
- 分类号：O614.123;TB383.2
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十三分会 ; 绿色化学
- 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：263k
- 原文格式：D
- 会议级别：全国
摘要
作为潜在的"绿色"反应介质,离子液体(ILs)在无机材料制备方面已经引起了人们极大的研究兴趣[1]。具有许多独特的优点,尤其是可设计性和超分子结构,ILs已经被设计性的制备出许多具有特殊形貌和独特性能的纳米材料。最近,我们提出了"可调的离子液体-水界面合成"的策略以用于制备和组装纳米结构化的薄膜[2-4]。在本研究中,我们通过使用具有不同阴离子的疏水性ILs,在离子液体-水界面制备出了具有不同形貌的Au薄膜(图1)。在[C_(10)mim][PF_6]-H_2O界面,所制备的Au薄膜由纳米颗粒组成了不规则的形貌。而采用[C_(10)mim][Tf_2N]-H_2O,蠕虫状的Au线相互交织、纠缠组成了Au薄膜。当采用[C_(10)mim][BF_4]-H_2O界面时,许多非常直的Au棒并伴随着少数球形颗粒被获得。这些结果表明通过仅变化离子液体的阴离子就可以可调的合成具有不同形貌的Au薄膜。同样,变化离子液体的烷基链长也可以制备出不同形貌的Au薄膜。
Ionic liquids(ILs),as potential greener reaction medium,have attracted extensive research interest in inorganic synthesis.Owing to lots of advantages,especially designable features and supramolecular structures,ILs have been designed to fabricate various nanomaterials with fascinating morphologies and unique properties.Recently,we proposed a facile strategy of "tunable IL-H_2O interfacial synthesis" for generation and assembly of nanomaterials.The Au films prepared at[C_(10)mim][PF_6]-H_2O interface are composed of irregularly aggregated structures with nanoparticles as subunits.When the[C_(10)mim][Tf_2N]-H_2O interface was used,wormlike wires intertwine with each other to build up the films.At the[C_(10)mim][BF_4]-H_2O interface,some very straight Au rods along with few spherical particles were obtained.At the same time,by changing the alkyl chain lengths of IL cations,the surface structures of Au films also show remarkable differences.
Ionic liquids(ILs),as potential greener reaction medium,have attracted extensive research interest in inorganic synthesis.Owing to lots of advantages,especially designable features and supramolecular structures,ILs have been designed to fabricate various nanomaterials with fascinating morphologies and unique properties.Recently,we proposed a facile strategy of "tunable IL-H_2O interfacial synthesis" for generation and assembly of nanomaterials.The Au films prepared at[C_(10)mim][PF_6]-H_2O interface are composed of irregularly aggregated structures with nanoparticles as subunits.When the[C_(10)mim][Tf_2N]-H_2O interface was used,wormlike wires intertwine with each other to build up the films.At the[C_(10)mim][BF_4]-H_2O interface,some very straight Au rods along with few spherical particles were obtained.At the same time,by changing the alkyl chain lengths of IL cations,the surface structures of Au films also show remarkable differences.
引文
[1]Ma,Z.;Yu,J.;Dai,S.Adv.Mater.2010,22:261.
[2]Yao,K.;Lu,W.;Li,X.;Wang,J.;Yuan,J.Chem.Commun.2013,49:1398.
[3]Lu,W.;Yao,K.;Wang,J.;Yuan,J.J.Colloid Interf.Sci.2015,437:35.
[4]Yao,K.;Lu,W.;Li,X.;Wang,J.J.Mater.Chem.A 2014,2:5140.
[2]Yao,K.;Lu,W.;Li,X.;Wang,J.;Yuan,J.Chem.Commun.2013,49:1398.
[3]Lu,W.;Yao,K.;Wang,J.;Yuan,J.J.Colloid Interf.Sci.2015,437:35.
[4]Yao,K.;Lu,W.;Li,X.;Wang,J.J.Mater.Chem.A 2014,2:5140.