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Amide linkage engineering in phthalocyanine-based covalent organic frameworks for enhanced photocatalytic CO2
Mingchao Xie1, Man Dong1,2, Fanfei Meng1
1Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, China. suncy009@nenu.edu.cn.
Abstract:
Rising CO2 emissions demand sustainable solutions. This work develops a phthalocyanine-based COF (AM-COF) via post-synthetic modification of imine to amide linkages. AM-COF shows enhanced CO2-to-CO conversion (33 mmol g-1 h-1, 91% selectivity), tripling the performance of pristine IM-COF. Mechanistic studies revealed that the amide linkages promote charge separation, offering new design strategies for efficient COF photocatalysts.
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