中国科学院上海应用物理研究所机构知识库
Advanced  
CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Medium-sized Au-40(SR)(24) and Au-52(SR)(32) nanoclusters with distinct gold-kernel structures and spectroscopic features
作者: Xu, WW; Li, YD; Gao, Y; Zeng, XC
刊名: NANOSCALE
出版日期: 2016
卷号: 8, 期号:3, 页码:1299—1304
关键词: THIOLATE-PROTECTED AU-38 ; THEORETICAL-ANALYSIS ; CRYSTAL-STRUCTURE ; CO OXIDATION ; OPTICAL-PROPERTIES ; STRUCTURE PREDICTION ; MAGIC SIZE ; CLUSTERS ; NANOPARTICLES ; MOLECULES
DOI: 10.1039/c5nr07810e
通讯作者: Gao, Y (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: We have analyzed the structures of two medium-sized thiolate-protected gold nanoparticles (RS-AuNPs) Au-40(SR)(24) and Au-52(SR)(32) and identified the distinct structural features in their Au kernels [Sci. Adv., 2015, 1, e1500425]. We find that both Au kernels of the Au-40(SR)(24) and Au-52(SR)(32) nanoclusters can be classified as interpenetrating cuboctahedra. Simulated X-ray diffraction patterns of the RS-AuNPs with the cuboctahedral kernel are collected and then compared with the X-ray diffraction patterns of the RS-AuNPs of two other prevailing Au-kernels identified from previous experiments, namely the Ino-decahedral kernel and icosahedral kernel. The distinct X-ray diffraction patterns of RS-AuNPs with the three different types of Au-kernels can be utilized as signature features for future studies of structures of RS-AuNPs. Moreover, the simulated UV/Vis absorption spectra and Kohn-Sham orbital energy-level diagrams are obtained for the Au-40(SR)(24) and Au-52(SR)(32), on the basis of time-dependent density functional theory computation. The extrapolated optical band-edges of Au-40(SR)(24) and Au-52(SR)(32) are 1.1 eV and 1.25 eV, respectively. The feature peaks in the UV/Vis absorption spectra of the two clusters can be attributed to the d -> sp electronic transition. Lastly, the catalytic activities of the Au-40(SR)(24) and Au-52(SR)(32) are examined using CO oxidation as a probe. Both medium-sized thiolate-protected gold clusters can serve as effective stand-alone nanocatalysts.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000368040200006
ISSN号: 2040-3364
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25771
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Medium-sized Au-40(SR)(24) and Au-52(SR)(32) nanoclusters with distinct gold-kernel structures and spectroscopic features.pdf(2649KB)期刊论文作者接受稿开放获取View Download

Recommended Citation:
Xu, WW,Li, YD,Gao, Y,et al. Medium-sized Au-40(SR)(24) and Au-52(SR)(32) nanoclusters with distinct gold-kernel structures and spectroscopic features[J]. NANOSCALE,2016-01-01,8(3):1299—1304.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Xu, WW]'s Articles
[Li, YD]'s Articles
[Gao, Y]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Xu, WW]‘s Articles
[Li, YD]‘s Articles
[Gao, Y]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Medium-sized Au-40(SR)(24) and Au-52(SR)(32) nanoclusters with distinct gold-kernel structures and spectroscopic features.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace