期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 17, 页码 4500-4504出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201800877
关键词
alloy; anti-galvanic reaction (AGR); gold; nanoparticles; structure
资金
- Natural Science Foundation of China [21222301, 21528303, 21501181, 21701179, 21601193, 21771186, 21171170, 21773201]
- Key Program of 13th five-year plan, CASHIPS [KP-2017-16]
- CAS/SAFEA International Partnership Program for Creative Research Teams
- Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology [2017FXCX002]
Anti-galvanic reaction (AGR) not only defies classic galvanic theory but is a promising method for tuning the compositions, structures, and properties of noble-metal nanoparticles. Employing AGR for the preparation of alloy nanoparticles has recently received great interest. Herein, we report an unprecedented alloying mode by way of AGR, in which foreign atoms induce structural transformation of the mother nanoparticles and enter the nanoparticles in a non-replacement fashion. A novel, active-metal-doped, gold nanoparticle was synthesized by this alloying mode, and its structure resolved. A CdSH motif was found in the protecting staples of the bimetal nanoparticle. DFT calculations revealed that the Au20Cd4(SH)(SR)(19) nanoparticle is a 8e superatom cluster. Furthermore, although the Cd-doping does not essentially alter the absorption spectrum of the mother nanocluster, it distinctly enhances the stability and catalytic selectivity of the mother nanoclusters.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据