@article{e1c14346230d4fad9b50e6b5f0e38170,
title = "Atomically precise bimetallic metal ensembles with tailorable synergistic effects",
abstract = "The large-scale synthesis of supported multinuclear catalysts with controllable metal nuclearity and constituent composition remains a formidable challenge. We report the stepwise assembly of supported atom-precise bimetallic ligand-mediated metal ensembles (LMMEs) by exploiting the underlying principles of coordination chemistry and solid-state chemistry. Lewis di-basic 2-methylimidazole is used to bridge multiple Cu2+ and M2+ (M = Co, Ni, Cu, and Zn) ions within ZSM-5 zeolites. We observe the metal constituent composition of the LMMEs by mass spectroscopy. The adjacent metal nuclei in the LMMEs offer substantial synergistic effects that enhance the catalytic performance by at least an order of magnitude in the model catalytic “click” reaction. It is envisaged that this stepwise assembly approach to develop supported multinuclear catalysts with atom precision could effectively bridge homogeneous and heterogeneous catalysis.",
keywords = "bimetallic catalysts, binuclear metal ensembles, dual-atoms, MALDI-MS characterization, microporous supports, modular assembly, precise control, structural refinements, synergistic effects, “click” reaction",
author = "Tianxiang Chen and Yong Wang and Qi Xue and Wun, {Ching Kit Tommy} and So, {Pui Kin} and Yung, {Ka Fu} and Wu, {Tai Sing} and Soo, {Yun Liang} and Keita Taniya and Sarah Day and Tang, {Chiu C.} and Zehao Li and Bolong Huang and Tsang, {Shik Chi Edman} and Wong, {Kwok yin} and Lo, {Tsz Woon Benedict}",
note = "Funding Information: We thank Diamond Light Source, SPring-8, and NSRRC for the provision of valuable synchrotron beamtime for SXRD and EXAFS measurements (CY26404 2020A1088 and 2020A0565). This work was supported by the Hong Kong Research Grants Council ( 15301521 and 15300819 ) and the National Natural Science Foundation of China ( 22172136 ) for financial support (T.W.B.L.). Finally, we thank UMF, UCEA, and UMF of PolyU for their support in materials characterization. Funding Information: We thank Diamond Light Source, SPring-8, and NSRRC for the provision of valuable synchrotron beamtime for SXRD and EXAFS measurements (CY26404 2020A1088 and 2020A0565). This work was supported by the Hong Kong Research Grants Council (15301521 and 15300819) and the National Natural Science Foundation of China (22172136) for financial support (T.W.B.L.). Finally, we thank UMF, UCEA, and UMF of PolyU for their support in materials characterization. T.W.B.L. conceived the project, directed the study, and wrote the manuscript. T.C. carried out the synthesis and characterizations and collaborated on writing the manuscript. Y.W. carried out catalytic measurements. Q.X. analyzed the EXAFS data. C.K.T.W. and P.K.S. carried out the mass spectroscopy measurements. T.-S.W. and Y.-L.S. collected the EXAFS data in NSRRC in Taiwan. K.T. collected the SXRD data in SPring-8. S.D. and C.C.T. collected the resonant-SXRD data in Diamond Light Source. Z.L. collected the XPS data. B.H. carried out theoretical calculations. S.C.E.T. K.F.Y. and K.-y.W. offered advice on catalysis and structure-reactivity correlations. All authors discussed the results and contributed to the production of the manuscript. The authors declare no competing interests. Publisher Copyright: {\textcopyright} 2022 The Author(s)",
year = "2022",
month = apr,
day = "20",
doi = "10.1016/j.xcrp.2022.100850",
language = "English",
volume = "3",
journal = "Cell Reports Physical Science",
issn = "2666-3864",
publisher = "Cell Press",
number = "4",
}