Copper-Doped CdSe/ZnS Quantum Dots: Controllable Photoactivated Copper(I) Cation Storage and Release Vectors for Catalysis

被引：55

作者：

Bear, Joseph C. ^{[1
]}

Hollingsworth, Nathan ^{[1
]}

McNaughter, Paul D. ^{[2
]}

Mayes, Andrew G. ^{[2
]}

Ward, Michael B. ^{[3
]}

Nann, Thomas ^{[4
]}

Hogarth, Graeme ^{[1
]}

Parkin, Ivan P. ^{[1
]}

机构：

[1] UCL, Dept Chem, London WC1H 0AJ, England

[2] Univ E Anglia, Sch Chem, Norwich NR4 7TJ, Norfolk, England

[3] Univ Leeds, Inst Mat Res, SPEME, Leeds LS2 9JT, W Yorkshire, England

[4] Univ S Australia, Ian Wark Res Inst, Adelaide, SA 5095, Australia

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

click chemistry; copper catalysis; core-shell materials; heterogeneous catalysis; quantum dots; SEMICONDUCTOR NANOCRYSTALS; INP/ZNS NANOCRYSTALS; CYCLIC VOLTAMMETRY; TERMINAL ALKYNES; SHELL; CU; LUMINESCENCE; OXIDATION; AZIDES;

D O I：

10.1002/anie.201308778

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first photoactivated doped quantum dot vector for metal-ion release has been developed. A facile method for doping copper(I) cations within ZnS quantum dot shells was achieved through the use of metal-dithiocarbamates, with Cu+ ions elucidated by X-ray photoelectron spectroscopy. Photoexcitation of the quantum dots has been shown to release Cu+ ions, which was employed as an effective catalyst for the Huisgen [3+2]cycloaddition reaction. The relationship between the extent of doping, catalytic activity, and the fluorescence quenching was also explored.

引用

页码：1598 / 1601

页数：4

共 41 条

[11] Modulation of a Photoswitchable Dual-Color Quantum Dot containing a Photochromic FRET Acceptor and an Internal Standard [J].