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Herein, single-atom Cu sites stabilized by adjacent Na+ ions have been successfully constructed within a metal\u2013organic framework (MOF)-based catalyst, namely MOF-808-NaCu. It is found that the electrostatic interaction between the Na+ and H\u03b4\u2212 species plays a pivotal role in upholding the atomic dispersion of Cu in MOF-808-NaCu during CO2 hydrogenation, even at temperatures of up to 275\u00b0C. This exceptional stabilization effect endows the catalyst with excellent activity (306 g\u00b7kgcat\u22121\u00b7h\u22121), high selectivity to methanol (93%) and long-term stability at elevated reaction temperatures, far surpassing the counterpart in the absence of Na+ (denoted as MOF-808-Cu). This work develops an effective strategy for the fabrication of stable single-atom sites for advanced catalysis by creating an alkali-decorated microenvironment in close proximity.<\/jats:p>","DOI":"10.1093\/nsr\/nwae114","type":"journal-article","created":{"date-parts":[[2024,3,21]],"date-time":"2024-03-21T14:54:48Z","timestamp":1711032888000},"source":"Crossref","is-referenced-by-count":57,"title":["Promoted hydrogenation of CO2 to methanol over single-atom Cu sites with Na+-decorated microenvironment"],"prefix":"10.1093","volume":"11","author":[{"given":"Li-Li","family":"Ling","sequence":"first","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026 , China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyu","family":"Guan","sequence":"additional","affiliation":[{"name":"Hefei National Research Center for Physical Sciences at the 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