Integrated Cobalt Oxide Based Nanoarray Catalysts with Hierarchical Architectures: InSitu Raman Spectroscopy Investigation on the Carbon Monoxide Reaction Mechanism
文献类型：期刊论文
| 作者 | Mo, SP; Zhang, Q; Li, SD; Ren, QM; Zhang, MY; Xue, YD; Peng, RS; Xiao, HL; Chen, YF; Ye, DQ |
| 刊名 | CHEMCATCHEM
 |
| 出版日期 | 2018 |
| 卷号 | 10期号:14页码:3012 |
| ISSN号 | 1867-3880 |
| 关键词 | cobalt TEMPERATURE CO OXIDATION oxidation METAL-ORGANIC FRAMEWORKS Raman spectroscopy HIGH-PERFORMANCE reaction mechanisms CO3O4 NANORODS structure-activity relationships MONOLITHIC CATALYSTS ACTIVE-SITES O-XYLENE SURFACE NANOSHEETS ELECTROCATALYSTS |
| DOI | 10.1002/cctc.201800363 |
| 文献子类 | Article |
| 英文摘要 | Herein, a facile strategy for the insitu growth of a Co3O4-based precursor with unique hierarchical architectures oriented diagonal or perpendicular to Ni surfaces is reported. This strategy to prepare grafted ZIF-67@Co3O4 and MOF-199@Co3O4 precursor structures is based on a simple hydrothermal synthesis method to obtain the Co3O4 precursor and the subsequent insitu growth of ZIF-67 and MOF-199, respectively. The morphologies of the Co3O4 products can be tailored by controlling the solvent polarity and concentration of precipitants. CO is chosen as a probe molecule to evaluate the catalytic performance of the as-synthesized Co3O4-based oxide catalysts, and the structure-activity relationships are confirmed by using TEM, H-2 temperature-programmed reduction, X-ray photoelectron spectroscopy, Raman spectroscopy and insitu Raman spectroscopy, and extended X-ray absorption fine structure analysis. These analysis results demonstrate that irislike Co3O4 exhibits a high catalytic activity for CO oxidation and contains an abundance of surface defect sites (Co3+ species) to result in an excellent low-temperature reducibility, oxygen vacancies and unsaturated chemical bonds on the surface. Moreover, we used insitu Raman spectroscopy to record the structural transformation of Co3O4 directly during the reaction, which confirmed that CO oxidation on the surface of Co3O4 can proceed through the Langmuir-Hinshelwood mechanism (<200 degrees C) and the Mars-vanKrevelen mechanism (>200 degrees C). |
| WOS记录号 | WOS:000439756600011 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/26700]  |
| 专题 | 中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Mo, SP,Zhang, Q,Li, SD,et al. Integrated Cobalt Oxide Based Nanoarray Catalysts with Hierarchical Architectures: InSitu Raman Spectroscopy Investigation on the Carbon Monoxide Reaction Mechanism[J]. CHEMCATCHEM,2018,10(14):3012, 3026. |
| APA | Mo, SP.,Zhang, Q.,Li, SD.,Ren, QM.,Zhang, MY.,...&Ye, Daiqi.(2018).Integrated Cobalt Oxide Based Nanoarray Catalysts with Hierarchical Architectures: InSitu Raman Spectroscopy Investigation on the Carbon Monoxide Reaction Mechanism.CHEMCATCHEM,10(14),3012. |
| MLA | Mo, SP,et al."Integrated Cobalt Oxide Based Nanoarray Catalysts with Hierarchical Architectures: InSitu Raman Spectroscopy Investigation on the Carbon Monoxide Reaction Mechanism".CHEMCATCHEM 10.14(2018):3012. |
入库方式： OAI收割
来源：过程工程研究所
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