Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4
文献类型：期刊论文
| 作者 | Bi, QY; Huang, XY; Yin, GH; Chen, TY; Du, XL; Cai, J; Xu, J; Liu, Z; Han, YF; Huang, FQ |
| 刊名 | CHEMCATCHEM
 |
| 出版日期 | 2019 |
| 卷号 | 11期号:4页码:1295—1302 |
| 关键词 | WATER-GAS SHIFT CARBON-DIOXIDE HETEROGENEOUS CATALYSTS FORMIC-ACID METHANATION TEMPERATURE HYDROGENATION CONVERSION METHANOL FORMATE |
| ISSN号 | 1867-3880 |
| DOI | 10.1002/cctc.201801896 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The use of CO2 to produce value-added energy chemicals is a promising means for renewable CO2 transformation in low-carbon energy system, and CO2 methanation has attracted ever-increasing interest. Herein, we report that the Ni/MCM-41 catalyst with prominent cooperative effect of Ni and NiO is efficient for CH4 generation with CO2 conversion of 73.2 % and CH4 selectivity of 91.6 % at 400 degrees C and high gas hourly space velocity (GHSV) of 90000 mL g(cat)(-1) h(-1). Combined methodologies of in situ X-ray diffraction, diffuse reflectance infrared Fourier transform spectroscopy, and ambient-pressure X-ray photoelectron spectroscopy reflect the structural evolvements of Ni/MCM-41 catalyst, the presence of carbonyl intermediates, the co-existence of metallic and oxidized Ni species with sufficient molar ratio of Ni-0/Ni2+ under working conditions. H-2 and CO2 molecules are preferentially adsorbed and chemically activated over Ni-0 and Ni2+ species, respectively. The possible four-step reaction mechanism involved carbonyl pathway and the cleavage of C=O bond from CO2 as the rate-determining step over the engineered Ni/MCM-41 catalyst was demonstrated. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31528]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201203, Peoples R China; 2.Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China; 3.East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China; 4.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 5.Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China; 6.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bi, QY,Huang, XY,Yin, GH,et al. Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4[J]. CHEMCATCHEM,2019,11(4):1295—1302. |
| APA | Bi, QY.,Huang, XY.,Yin, GH.,Chen, TY.,Du, XL.,...&Huang, FQ.(2019).Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4.CHEMCATCHEM,11(4),1295—1302. |
| MLA | Bi, QY,et al."Cooperative Catalysis of Nickel and Nickel Oxide for Efficient Reduction of CO2 to CH4".CHEMCATCHEM 11.4(2019):1295—1302. |
入库方式： OAI收割
来源：上海应用物理研究所
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