The Fourth Alloying Mode by Way of Anti‐Galvanic Reaction |
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| Authors: | Dr Min Zhu Dr Pu Wang Nan Yan Xiaoqi Chai Lizhong He Yan Zhao Nan Xia Chuanhao Yao Prof?Dr Jin Li Prof?Dr Haiteng Deng Prof?Dr Yan Zhu Prof?Dr Yong Pei Prof?Dr Zhikun Wu |
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| Institution: | 1. Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, China;2. Institute of Physical Science and Information Technology, Anhui University, Hefei, China;3. University of Science and Technology of China, Hefei, China;4. Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province, Xiangtan, China;5. Key Lab of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;6. Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China;7. MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China |
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| Abstract: | 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. |
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| Keywords: | alloy anti-galvanic reaction (AGR) gold nanoparticles structure |
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