| The regulating effects of cobalt addition on the catalytic properties of silica-supported Ni-Co bimetallic catalysts for CO2 methanation | |
| Department | OSSO国家重点实验室 |
Guo, Meng1,2; Lu GX(吕功煊)1 ; Lv GX(吕功煊)
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| The second department | erc国家工程研究中心 |
| 2014 | |
| Source Publication | Reaction Kinetics, Mechanisms and Catalysis
 |
| ISSN | 1878-5190 |
| Volume | 113Issue:1Pages:101-113 |
| Abstract | Co-modified Ni/SiO2 samples were prepared by the wet co-impregnation method and characterized by X-ray photoelectron spectroscopy (XPS), hydrogen-temperature programmed reduction (H2-TPR), and X-ray diffraction (XRD) techniques. The obtained materials were used as the catalysts for the carbon dioxide methanation reaction. Methanation activities of Ni–Co/SiO2 catalysts were significantly dependent on Co/Ni molar ratios. The increase of Co loading led to the remarkable increase of CO2 conversions at temperature range from 250–350 °C. The methanation activities of bimetallic catalysts were also significantly dependent on Co/Ni molar ratios from XPS results. Based on the XRD characterization, a relationship between activities and NiCo species was observed. These NiCo species showed the typical TPR peaks at high temperatures. The higher the temperatures of these species over bimetallic catalyst were, the lower the catalytic activities were observed. In addition, the decrease of both NiCo(111) lattice constants and particle sizes corresponded the increase of catalytic activities in tested samples. A possible mechanism based on those NiCo species is proposed. |
| Keyword | Co Addition Bimetallic Catalyst Methanation Co2 Nico Alloy |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1007/s11144-014-0732-0 |
| Funding Organization | the 973 Program and 863 Program of Department of Science and Technology China (Grant Nos. 2013CB632404;2012AA051501);the National Natural Science Foundation of China (Grant Nos. 21373245) |
| Indexed By | SCI |
| If | 1.170 |
| Language | 英语 |
| Funding Project | 环境催化与氢能源研究组;环境催化与清洁能源研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19265 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Lv GX(吕功煊) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Guo, Meng,Lu GX,Lv GX. The regulating effects of cobalt addition on the catalytic properties of silica-supported Ni-Co bimetallic catalysts for CO2 methanation[J]. Reaction Kinetics, Mechanisms and Catalysis,2014,113(1):101-113. |
| APA | Guo, Meng,Lu GX,&吕功煊.(2014).The regulating effects of cobalt addition on the catalytic properties of silica-supported Ni-Co bimetallic catalysts for CO2 methanation.Reaction Kinetics, Mechanisms and Catalysis,113(1),101-113. |
| MLA | Guo, Meng,et al."The regulating effects of cobalt addition on the catalytic properties of silica-supported Ni-Co bimetallic catalysts for CO2 methanation".Reaction Kinetics, Mechanisms and Catalysis 113.1(2014):101-113. |
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| File Name/Size | DocType | Version | Access | License | ||
| art%3A10.1007%2Fs111（335KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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