光催化
红外线的
辐照
光化学
材料科学
金属
吸附
离解(化学)
镍
化学
催化作用
物理化学
光学
有机化学
物理
核物理学
冶金
作者
Weimin Ma,Jian Sun,Shunyu Yao,Yutao Wang,Gang Chen,Guodong Fan,Yingxuan Li
标识
DOI:10.1002/ange.202313784
摘要
Abstract Infrared light driven photocatalytic reduction of atmospheric CO 2 is challenging due to the ultralow concentration of CO 2 (0.04 %) and the low energy of infrared light. Herein, we develop a metallic nickel‐based metal–organic framework loaded with Pt (Pt/Ni‐MOF), which shows excellent activity for thermal‐photocatalytic conversion of atmospheric CO 2 with H 2 even under infrared light irradiation. The open Ni sites are beneficial to capture and activate atmospheric CO 2 , while the photogenerated electrons dominate H 2 dissociation on the Pt sites. Simultaneously, thermal energy results in spilling of the dissociated H 2 to Ni sites, where the adsorbed CO 2 is thermally reduced to CO and CH 4 . The synergistic interplay of dual‐active‐sites renders Pt/Ni‐MOF a record efficiency of 9.57 % at 940 nm for converting atmospheric CO 2 , enables the procurement of CO 2 to be independent of the emission sources, and improves the energy efficiency for trace CO 2 conversion by eliminating the capture media regeneration and molecular CO 2 release.
科研通智能强力驱动
Strongly Powered by AbleSci AI