Xian-hu Liu, Fei-hong Wang, Cong-ying Shao, Gang-feng Du, and Bing-qing Yao, Kinetically controlled synthesis of atomically precise silver nanocluster for catalytic reduction of 4-nitrophenol, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2186-x
Cite this article as:
Xian-hu Liu, Fei-hong Wang, Cong-ying Shao, Gang-feng Du, and Bing-qing Yao, Kinetically controlled synthesis of atomically precise silver nanocluster for catalytic reduction of 4-nitrophenol, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2186-x
Xian-hu Liu, Fei-hong Wang, Cong-ying Shao, Gang-feng Du, and Bing-qing Yao, Kinetically controlled synthesis of atomically precise silver nanocluster for catalytic reduction of 4-nitrophenol, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2186-x
Citation:
Xian-hu Liu, Fei-hong Wang, Cong-ying Shao, Gang-feng Du, and Bing-qing Yao, Kinetically controlled synthesis of atomically precise silver nanocluster for catalytic reduction of 4-nitrophenol, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2186-x
Department of Chemistry, Huaibei Normal University, Huaibei 235000, China
2.
Henan Key Laboratory of High-temperature Structural and Functional Materials, National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, 471003, China
3.
Department of Public Teaching, Nanyang Medical College, Nanyang 473061, China
4.
Department of School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
Received: 3 August 2020; Revised:
3 September 2020; Accepted:
4 September 2020; Available online:
5 September 2020
It is challenging to synthesize atom-precise silver nanoclusters (NCs), which is essential for the development of NCs. In this study, we report the synthesis of atom-precise silver NCs in high purity by a kinetically controlled strategy. The silver NCs were prepared using a mild reducing agent via a one-pot method. The as-prepared silver NCs were confirmed to be Ag49(D-pen)24 (D-pen: D-penicillamine) based on the discussion of matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and thermogravimetry (TG) characterizations. Interface structures of the silver NCs were illustrated by both 1H-NMR and FTIR spectroscopy. The silver NCs were supported on the active carbon (AC) to form the Ag NCs/AC which displayed excellent activity for the catalytic reduction of 4-nitrophenol with the kinetic reaction rate constant k of 0.21 min−1, outperforming several catalysts reported previously. Besides, the catalytic activity of Ag NCs/AC kept almost constant after six times of recycle, suggesting its good stability.
Search
DownLoad: