N-Heterocyclic carbene-stabilized gold nanoparticles with tunable sizes

被引：47
|
作者：
Bridonneau, N. [1 ]
Hippolyte, L. [1 ,2 ]
Mercier, D. [3 ]
Portehault, D. [1 ]
Desage-El Murr, M. [2 ]
Marcus, P. [3 ]
Fensterbank, L. [2 ]
Chaneac, C. [1 ]
Ribot, F. [1 ]
机构：
[1] Sorbonne Univ, Coll France, CNRS, Lab Chim Matiere Condensee Paris,LCMCP, F-75005 Paris, France
[2] Sorbonne Univ, CNRS, Inst Parisien Chim Mol, IPCM, F-75005 Paris, France
[3] PSL Res Univ, CNRS, Inst Rech Chim Paris, Chim Paris Tech, F-75005 Paris, France
来源：
DALTON TRANSACTIONS | 2018年 / 47卷 / 19期
关键词：
RAY PHOTOELECTRON-SPECTROSCOPY; SELF-ASSEMBLED MONOLAYERS; IONIC LIQUIDS; X-RAY; LIGANDS; CATALYSIS; REDUCTION; SURFACES; PHASE; NANOCRYSTALS;
D O I：
10.1039/c8dt00416a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A simple and straightforward synthesis of N-heterocyclic carbene (NHC)-protected gold nanoparticles is derived from (benz)imidazolium-AuX4 complexes and NaBH4 only. The proposed method allows size tuning, from 3 to 6 nm, by adding (benz)imidazolium bromide. Changing the reducing agent to tBuNH(2)BH(3) shifts the size range to ca. 6-12 nm. A one pot protocol is also reported from AuCl, (benz)imidazolium bromides and NaBH4, thereby providing an even more straightforward way of producing NHC-capped gold nanoparticles. In addition, X-ray photoelectron spectroscopy (XPS) is used to unambiguously evidence, on the nanoparticles, the covalent bond formed between the NHC and the surface gold atoms.
引用
收藏
页码：6850 / 6859
页数：10
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