Amide‐Engineered Metal–Organic Porous Liquids Toward Enhanced CO 2 Photoreduction Performance

• Published in: Advanced functional materials Vol. 34; no. 19
• Main Authors: Xu, Yangrui, Ren, Yewei, Zhou, Guosheng, Feng, Sheng, Yang, Zhenzhen, Dai, Sheng, Lu, Ziyang, Zhou, Tianhua
• Format: Journal Article
• Language: English
• Published: 01.05.2024
• ISSN: 1616-301X; 1616-3028
• DOI: 10.1002/adfm.202313695

Abstract The development of alternative catalytic systems toward high‐performance CO 2 photoreduction is considered to be a promising approach to address the future energy demand and reduce the CO 2 emissions. However, CO 2 molecules are thermodynamically stable in nature, and thus the adsorption and activation of CO 2 on the surface of catalysts are the key factors to determine the conversion efficiency. Herein, a porous liquid (NH 2 ‐UIO‐66 PL) is demonstrated for efficiently facilitating the adsorption and activation of CO 2 by modification of metal–organic framework (NH 2 ‐UIO‐66) with ionic liquid via amide bonds. CdS/NH 2 ‐UIO‐66 PL exhibits high‐performance CO 2 ‐to‐CO photoreduction with CO yield of 71.37 µmol g −1  h −1 and selectivity of 100%. Experiments and theoretical calculations show that the introduced amide moieties not only enriched the electron density at Zr 4+ active sites but also stabilize * COOH intermediate. The achievements provide an effective strategy for the development of metal–organic frameworks for energy catalysis.