DICP OpenIR
Visible Light Gold Nanocluster Photocatalyst: Selective Aerobic Oxidation of Amines to Imines
Chen, Haijun1,2; Liu, Chao3; Wang, Min1; Zhang, Chaofeng1; Luo, Nengchao1,2; Wang, Yehong1; Abroshan, Hadi4; Li, Gao3; Wang, Feng1
关键词Gold Nanoclusters Au-25 Photocatalysis Selective Organic Transformation Benzylamine Oxidation
刊名ACS CATALYSIS
2017-05-01
DOI10.1021/acscatal.6b03509
7页:3632-3638
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]AU-25 CLUSTERS ; AU-25(SCH2CH2PH)(18) NANOCLUSTERS ; CO OXIDATION ; AU CLUSTERS ; SIZE ; NANOPARTICLES ; HYDROGEN ; TIO2 ; CATALYSIS ; MONODISPERSE
英文摘要This work demonstrates the synthesis of an efficient photocatalyst, Au-25(PPh3)(10)Cl-2(SC3H6SiO3)(5)/TiO2, for selective oxidation of amines to imines. The photocatalyst is prepared via hydrolysis of Au-25(PPh3)(10)Cl-2[(SC3H6Si(OC2H3)(3)](5) nanoclusters in the presence of TiO2 support. The gold nanoclusters exhibit good photocatalytic activity using visible light and under mild thermal conditions for the selective oxidation with molecular oxygen (O-2). The turnover frequency (TOF) of 4-methylbenzyla-mine oxidation is found to be 1522 h(-1), which is considerably higher than that conventional gold catalysts. The gold nanoclusters present good recyclability and stability for the oxidation of a wide range of amines. The superior activity of the photocatalyst is associated with its unique electronic structure and framework. The catalytically active sites are deemed to be the exposed gold atoms upon detaching protecting ligands: i.e., PPh3. The Hammett parameter suggests that the photocatalytic process involves the formation of carbocation intermediate species. Further, Au-H species were confirmed by TEMPO (2,2,6,6-tetramethylpiperidinyloxy) as a trapping agent.
语种英语
WOS记录号WOS:000401054300066
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152304
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Gold Catalysis Res Ctr, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.Carnegie Mellon Univ, Dept Chem, 4400 5th Ave, Pittsburgh, PA 15213 USA
推荐引用方式
GB/T 7714
Chen, Haijun,Liu, Chao,Wang, Min,et al. Visible Light Gold Nanocluster Photocatalyst: Selective Aerobic Oxidation of Amines to Imines[J]. ACS CATALYSIS,2017,7:3632-3638.
APA Chen, Haijun.,Liu, Chao.,Wang, Min.,Zhang, Chaofeng.,Luo, Nengchao.,...&Wang, Feng.(2017).Visible Light Gold Nanocluster Photocatalyst: Selective Aerobic Oxidation of Amines to Imines.ACS CATALYSIS,7,3632-3638.
MLA Chen, Haijun,et al."Visible Light Gold Nanocluster Photocatalyst: Selective Aerobic Oxidation of Amines to Imines".ACS CATALYSIS 7(2017):3632-3638.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chen, Haijun]的文章
[Liu, Chao]的文章
[Wang, Min]的文章
百度学术
百度学术中相似的文章
[Chen, Haijun]的文章
[Liu, Chao]的文章
[Wang, Min]的文章
必应学术
必应学术中相似的文章
[Chen, Haijun]的文章
[Liu, Chao]的文章
[Wang, Min]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。