Density Functional Theory Study of the Role of an Carbon-Oxygen Single Bond Group in the NO-Char Reaction
文献类型：期刊论文
| 作者 | Zhao, T; Song, WL; Fan, CG; Li, SG; Glarborg, P; Yao, XG; Zhao, Tong; Song, Wenli; Fan, Chuigang; Li, Songgeng |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2018 |
| 卷号 | 32期号:7页码:7734 |
| 关键词 | NITRIC-OXIDE COAL CHARS REDUCTION REACTION BOUND NITROGEN FLUIDIZED-BED SURFACE MECHANISM COMBUSTION GRAPHITE KINETICS |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.8b01124 |
| 文献子类 | Article |
| 英文摘要 | The mechanism of the reaction between char and nitric oxide (NO) on zigzag and armchair edge structures was studied based on density functional theory (DFT). Four possible pathways were presented to illustrate the chemical processes. The results show that the activation step and the release of carbon monoxide (CO) and carbon dioxide (CO2) are the controlling steps in the NO-char reaction. The exothermic chemisorption can release a great deal of energy which can be utilized by the subsequent reactions. The armchair edge is easier to activate (via dehydrogenation) to release CO or CO2 than the zigzag edge, while chemisorption of NO on a zigzag edge releases much more energy than that on an armchair edge. Carbon-oxygen single bond groups (C-O single bond groups) can promote the NO-char reaction by lowering the barrier of activation or producing new active sites via releasing CO2. These results are consistent with the experimental observation that C-O single bond groups can favor the NO-char reaction. |
| WOS记录号 | WOS:000439661300045 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/26723]  |
| 专题 | 中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Zhao, T,Song, WL,Fan, CG,et al. Density Functional Theory Study of the Role of an Carbon-Oxygen Single Bond Group in the NO-Char Reaction[J]. ENERGY & FUELS,2018,32(7):7734, 7744. |
| APA | Zhao, T.,Song, WL.,Fan, CG.,Li, SG.,Glarborg, P.,...&Yao, Xiaoqian.(2018).Density Functional Theory Study of the Role of an Carbon-Oxygen Single Bond Group in the NO-Char Reaction.ENERGY & FUELS,32(7),7734. |
| MLA | Zhao, T,et al."Density Functional Theory Study of the Role of an Carbon-Oxygen Single Bond Group in the NO-Char Reaction".ENERGY & FUELS 32.7(2018):7734. |
入库方式： OAI收割
来源：过程工程研究所
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