内蒙古工业大学学报(自然科学版)2024,Vol.43Issue(6) :512-518.DOI:10.13785/j.cnki.nmggydxxbzrkxb.2024.06.005

Co原子在NC载体表面的吸附及苯甲醇氧化的反应机制

Adsorption of Co atom on NC support and reaction mechanism of benzyl alcohol oxidation

祁建磊 梁大宇 孙海鑫 焦琪悦 银建中 路智敏
内蒙古工业大学学报(自然科学版)2024,Vol.43Issue(6) :512-518.DOI:10.13785/j.cnki.nmggydxxbzrkxb.2024.06.005

Co原子在NC载体表面的吸附及苯甲醇氧化的反应机制

Adsorption of Co atom on NC support and reaction mechanism of benzyl alcohol oxidation

祁建磊 1梁大宇 1孙海鑫 2焦琪悦 3银建中 2路智敏1
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作者信息

  • 1. 内蒙古工业大学 化工学院,呼和浩特 010051
  • 2. 大连理工大学 化工学院,辽宁 大连 116024
  • 3. 托克托县应急管理局,呼和浩特 010200
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摘要

针对氮掺杂碳材料(NC)负载Co单原子催化剂,采用了第一性原理计算方法,对NC负载Co单原子的结构以及Co-N4构型催化剂在苯甲醇(BnOH)氧化反应过程中的作用进行了相关计算,结果表明,双C空位缺陷的NC相比于单C空位缺陷NC更有利于Co单原子的锚定.计算表明,Co单原子将O2分子活化后,活性氧与BnOH反应得到苯甲醛,BnOH与苯甲醛之间存在的能量差有利于反应向正向进行,相关计算为反应研究提供了理论依据.

Abstract

For the study of the performance of the Co single-atom catalyst supported by nitrogen-doped carbon material(NC),the first principle calculation method is used to calculate the structure of Co single-atom supported by NC and the role of Co-N4 catalyst in the oxidation process of benzyl alcohol(BnOH).The results showed that:NC with the di-vacancy defect is more conducive to the anchoring of Co atoms than the NC with the single-vacancy defect.Calculations show that after the activation of O2 molecules by Co atoms,benzaldehyde is obtained by the reaction of the activated oxygen with BnOH,and the energy difference between BnOH and benzaldehyde is favourable for the reaction to proceed in a positive direction.The calculations provide a theoretical basis for the study of the reaction.

关键词

第一性原理/单原子催化剂/钴原子/苯甲醇氧化/氮掺杂碳

Key words

first principle/single-atom catalyst/cobalt atoms/benzyl alcohol oxidation/nitrogen-doped carbon materials

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出版年

2024
内蒙古工业大学学报(自然科学版)
内蒙古工业大学

内蒙古工业大学学报(自然科学版)

影响因子:0.176
ISSN:1001-5167
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