journal article·2023-08-08

Macroscopic Synthesis of Ligand-Free Subnanometer Metal Clusters via Molten Salt

Yiyang Liu, Hongliang Bao, Jinrong Yang, Xiao-Bin Fu, Ling Han, Jing Yang, Min Ge, Zheng Jiang, Yu-Ying Huang, Yuan Qian, Jian-Qiang Wang, Yi Gao, Hong-Tao Liu

Chemistry of Materials· Volume 35· Issue 15
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Abstract

Macroscopic synthesis of bare metal nanoclusters is a prerequisite for their practical applications from laboratory to industry. Herein, we reported an unexpected high dissolution of copper in molten LiCl–KCl eutectic salt. Combining synchrotron-based spectroscopy, nuclear magnetic resonance, and scanning transmission electron microscopy measurements, the dissolved copper was demonstrated to form nanoclusters with a few atoms in the molten salt, which can be frozen to maintain their pristine states for more than one year. The theoretical analysis indicated that the salt ions formed a protective solvation shell to hold the stability of nanoclusters. By washing the one-pot solidified salt with water, the macroscale of ligand-free subnanometer copper clusters is obtained. With this method, the preparation of metal nanoclusters can be further scaled up at low cost to speed up the fundamental research and industrial applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Nanocluster Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China

Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China

Phonon Science Research Center for Carbon Dioxide, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Chinese Academy of Sciences

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