Mechanism of CO2 photoreduction by selenium-doped carbon nitride with cobalt clusters as cocatalysts

文献信息

发布日期 2023-03-01
DOI 10.1039/D2CP05872C
影响因子 3.676
作者

Yuanyuan Hu, Ting Wu


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摘要

Doping is an efficient strategy for improving the photocatalytic activity and tuning the electronic structure of carbon nitride. Selenium-doped melon carbon nitride (Se-doped melon CN) as a promising photocatalyst for CO2 reduction is investigated using density functional theory calculations. In addition, considering the special role of a cocatalyst in CO2 reduction, we have explored the electronic and optical properties of Co4 clusters loaded on the Se-doped melon CN surface. After loading cobalt clusters, CO2 activation is significantly improved, with preference for the 8-electron product CH4, as the 2-electron products have higher desorption energies. Overall, this work provides a microscopic understanding of the CO2 reduction mechanism on Se-doped melon CN with cobalt as the co-catalyst.

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来源期刊

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
自引率: 10.3%
年发文量: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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