Triangular‐Tessellated Charge Transfer Cocrystals Derived from Melamine with Enhanced Photocatalytic Performance
Abstract
ABSTRACT Charge transfer (CT) cocrystals hold great promise for advanced functional materials, yet controlling their CT interactions in terms of both structural design and precise synthesis remains challenging. Herein, a tessellation‐based strategy to modulate CT strength in melamine‐derived cocrystals is demonstrated, specifically in MMC‐12 (melem:melamine = 1:2) and MMC‐31 (3:1). Transient absorption (TA) spectroscopy and theoretical simulations reveal that MMC‐31 exhibits enhanced CT interactions, facilitating rapid electron transfer from melamine to melem and forming weakly bound CT excitons. These excitons dissociate readily into free carriers, leading to an 18‐fold enhancement in H 2 O 2 production and a 12‐fold enhancement in H 2 evolution compared to pristine melem. This work underscores the potential of geometric tessellation as a general design principle for high‐performance organic semiconductors and photocatalysts.
Article Details
Authors (8)
Lizheng Chen
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun P. R. China
Ruping Niu
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun P. R. China
Jianglong Jiang
Key Laboratory of Surface and Interface Chemistry of Jilin Province College of Chemistry Jilin University Changchun P. R. China
Longyu Guo
Xuefeng Chu
Jilin Provincial Key Laboratory of Architectural Electricity & Comprehensive Energy Saving School of Electrical and Electronic Information Engineering Jilin Jianzhu University Changchun P. R. China
Tengfeng Xie
Department College of Chemistry Jilin University Changchun 130012 P.R. China
Wenfu Yan
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry
Gang Liu