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Wang R, Chen D, Fang L, Fan W, You Q, Bian G, Zhou Y, Gu W, Wang C, Bai L, Li J, Deng H, Liao L, Yang J, Wu Z. Atomically Precise Nanometer-Sized Pt Catalysts with an Additional Photothermy Functionality. Angew Chem Int Ed Engl 2024:e202402565. [PMID: 38588114 DOI: 10.1002/anie.202402565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Atomically precise ~1-nm Pt nanoparticles (nanoclusters, NCs) with ambient stability are important in fundamental research and exhibit diverse practical applications (catalysis, biomedicine, etc.). However, synthesizing such materials is challenging. Herein, by employing the mixture ligand protecting strategy, we successfully synthesized the largest organic-ligand-protected (~1-nm) Pt23 NCs precisely characterized with mass spectrometry and single-crystal X-ray diffraction analyses. Interestingly, natural population analysis and Bader charge calculation indicate an alternate, varying charge -layer distribution in the sandwich-like Pt23 NC kernel. Pt23 NCs can catalyze the oxygen reduction reaction under acidic conditions without requiring calcination and other treatments, and the resulting specific and mass activities without further treatment are sevenfold and eightfold higher than those observed for commercial Pt/C catalysts, respectively. Density functional theory and d-band center calculations interpret the high activity. Furthermore, Pt23 NCs exhibit a photothermal conversion efficiency of 68.4% under 532-nm laser irradiation and can be used at least for six cycles, thus demonstrating great potential for practical applications.
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Affiliation(s)
- Runguo Wang
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Dong Chen
- Institute of Process Engineering Chinese Academy of Sciences, Multiphase Complex Systems, CHINA
| | - Liang Fang
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Wentao Fan
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Qing You
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Guoqing Bian
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Yue Zhou
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Wanmiao Gu
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Chengming Wang
- University of Science and Technology of China School of Chemistry and Materials Science, Instruments' Center for Physical Science, CHINA
| | - Licheng Bai
- Shenzhen Institutes of Advanced Technology, Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, CHINA
| | - Jin Li
- Tsinghua University, Life sciences, CHINA
| | | | - Lingwen Liao
- Institute of Solid State Physics Chinese Academy of Sciences, Nanomaterials and nanotechnology, CHINA
| | - Jun Yang
- CAS Institute of Process Engineering, State Key Laboratory of Multiphase Complex Systems, CHINA
| | - Zhikun Wu
- Institute of Solid State Physics, Key Laboratory of Materials Physics, 350 Shushanhu Road, 230031, Hefei, CHINA
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Qiu N, Liu Y, Guo R. Electrodeposition-Assisted Rapid Preparation of Pt Nanocluster/3D Graphene Hybrid Nanozymes with Outstanding Multiple Oxidase-Like Activity for Distinguishing Colorimetric Determination of Dihydroxybenzene Isomers. ACS Appl Mater Interfaces 2020; 12:15553-15561. [PMID: 32134242 DOI: 10.1021/acsami.9b23546] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Here, we demonstrate a facile bottom-up strategy to fabricate Pt nanoclusters (Pt NCs) grafted onto three-dimensional graphene foam (3D GF) assisted by cetyltrimethyl ammonium bromide (CTAB) using the electrodeposition method. The homogeneous grafting of Pt NC onto 3D GF is due to the formation of hemimicelles above some CTAB concentration. With the unique nanocluster structure and the high content of Pt0, the Pt NC/3D GF nanohybrid exhibits extremely high activity and shows higher reusability and stability. Apart from the intrinsic oxidase-like activity with 3,3',5,5'-tetramethylbenzidine (TMB) as the substrate, the Pt NC/3D GF nanohybrid can act simultaneously as an effective polyphenol oxidase (PPO) mimic, such as tyrosinase, catechol oxidase, and laccase. More importantly, utilizing intrinsic catechol oxidase-like activity and the oxidase-like activity with TMB as the substrate of the nanohybrid, distinguishing colorimetric determination of dihydroxybenzene isomers (catechol and hydroquinone) is performed. Distinguishing colorimetric analysis of dihydroxybenzene isomers was first developed using nanozymes. The present work provides a simple bottom-up approach for the reasonable fabrication of various nanostructured nanozymes with excellent performance using the electrodeposition method assisted with surfactants.
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Affiliation(s)
- Na Qiu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, P. R. China
- College of Chemistry, Chemical Engineering and Material Science, Zaozhuang University, Zaozhuang 277160, Shandong, P. R. China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, P. R. China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, P. R. China
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