Atomically Dispersed High-Density Al-N-4 Sites in Porous Carbon for Efficient Photodriven CO2 Cycloaddition
文献类型：期刊论文
| 作者 | Yang, Qihao; Peng, Huaitao; Zhang, Qiuju; Qian, Xu; Chen, Xu; Tang, Xuan; Dai, Sheng; Zhao, Jiajun; Jiang, Kun; Yang, Qiu |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 33期号:45 |
| 关键词 | METAL-ORGANIC-FRAMEWORK CYCLIC CARBONATES CONVERSION DIOXIDE CATALYSIS ELECTROREDUCTION EPOXIDES ENHANCEMENT OXIDATION POLYMERS |
| 英文摘要 | Highly active catalysts that can directly utilize renewable energy (e.g., solar energy) are desirable for CO2 value-added processes. Herein, aiming at improving the efficiency of photodriven CO2 cycloaddition reactions, a catalyst composed of porous carbon nanosheets enriched with a high loading of atomically dispersed Al atoms (approximate to 14.4 wt%, corresponding to an atomic percent of approximate to 7.3%) coordinated with N (AlN4 motif, Al-N-C catalyst) via a versatile molecule-confined pyrolysis strategy is reported. The performance of the Al-N-C catalyst for catalytic CO2 cycloaddition under light irradiation (approximate to 95% conversion, reaction rate = 3.52 mmol g(-1) h(-1)) is significantly superior to that obtained under a thermal environment (approximate to 57% conversion, reaction rate = 2.11 mmol g(-1) h(-1)). Besides the efficient photothermal conversion induced by the carbon matrix, both experimental and theoretical analysis reveal that light irradiation favors the photogenerated electron transfer from the semiconductive Al-N-C catalyst to the epoxide reactant, facilitating the formation of a ring-opened intermediate through the rate-limiting step. This study not only provides an advanced Al-N-C catalyst for photodriven CO2 cycloaddition, but also furnishes new insight for the rational design of superior photocatalysts for diverse heterogeneous catalytic reactions in the future. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21483]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Chen, L (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. 2.Lu, ZY 3.Chen, L (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 4.Zhang, LJ (corresponding author), Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yang, Qihao,Peng, Huaitao,Zhang, Qiuju,et al. Atomically Dispersed High-Density Al-N-4 Sites in Porous Carbon for Efficient Photodriven CO2 Cycloaddition[J]. ADVANCED MATERIALS,2021,33(45). |
| APA | Yang, Qihao.,Peng, Huaitao.,Zhang, Qiuju.,Qian, Xu.,Chen, Xu.,...&Chen, Liang.(2021).Atomically Dispersed High-Density Al-N-4 Sites in Porous Carbon for Efficient Photodriven CO2 Cycloaddition.ADVANCED MATERIALS,33(45). |
| MLA | Yang, Qihao,et al."Atomically Dispersed High-Density Al-N-4 Sites in Porous Carbon for Efficient Photodriven CO2 Cycloaddition".ADVANCED MATERIALS 33.45(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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