ArticleAngewandte Chemie (International ed. in English)2026
Lewis-Base Coordination Enables Highly Dispersed Pt Cocatalyst on Pyrene-Based MOFs for Enhanced Photocatalytic Hydrogen Evolution.
Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Rationally optimizing the coordination structures of Pt-based cocatalysts to concurrently achieve enhanced charge separation/transfer and lowered reaction energy barriers is significant for photocatalysis. Herein, we engineered the coordination of Pt cocatalyst on pyrene-based metal-organic frameworks (MOFs) through grafting different Lewis-base groups. The softness of the introduced groups directly determines their affinity for Pt precursors, allowing for precise tailoring of the electronic metal-support interactions (EMSI) of Pt and MOFs, which leads to the distinct Pt coordination structures. These structural features accelerate charge separation/transfer by an established internal electric field and lower catalytic energy barriers enabled by the oxidized Pt surface, leading to significantly enhanced photocatalytic activity. Specifically, the -SH-functionalized MOF (Pt/NU-M), featuring strong EMSI, achieves atomic dispersion of Pt-O/S coordination and delivers a superior hydrogen evolution rate of 5.68 mmol g
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