铁锚定硅烯催化CO氧化反应:机理及关键因素

IF 2.9 3区 化学 Q3 CHEMISTRY, PHYSICAL Chemical Physics Letters Pub Date : 2025-04-01 Epub Date: 2025-02-01 DOI:10.1016/j.cplett.2025.141929
Rong Chen, Guang Yuan Ren, Bin Huang, Zhi Bin Zhang
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引用次数: 0

摘要

一氧化碳催化氧化反应是环境科学中的一个重要反应。本文通过第一性原理计算研究了CO在Fe@silicene上氧化的机理。Fe@silicene中带负电的Fe原子首先吸附O2分子,影响后续的CO吸附。然后用AM和CMM机制构建了CO氧化反应能图。基于电子电荷和动能分析,CO氧化机理由O2和CO的吸附能以及Fe@silicene的电子结构决定。进一步的讨论表明,这两种机制都有助于总体反应性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Catalytic CO oxidation reaction over Fe anchored Silicene: Mechanism and key factors
The CO catalytic oxide reaction is a critical reaction in environmental science. Herein, the mechanism of CO oxidation on Fe@silicene was investigated by first-principles calculations. The negatively charged Fe atom in Fe@silicene can adsorb O2 molecules firstly, influencing subsequent CO adsorption. Reaction energy diagrams for CO oxidation were then constructed by AM and CMM mechanisms. Based on electron charge and kinetic energy analyses, the mechanism of CO oxidation is determined by the adsorption energies of O2 and CO, as well as the electronic structures of Fe@silicene. Further discussion shows both mechanisms contribute to the overall reactivity.
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来源期刊
Chemical Physics Letters
Chemical Physics Letters 化学-物理:原子、分子和化学物理
CiteScore
5.70
自引率
3.60%
发文量
798
审稿时长
33 days
期刊介绍: Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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