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| MgO纳米晶负载镍催化剂用于甲烷蒸汽重整反应(英文) | |
| 作者姓名： | Mahmood ANDACHE Mehran REZAEI Mansour KAZEMI MOGHADAM |
| 作者单位： | a Department of Chemistry, Islamic Azad University, Omidiyeh Branch, Omidiyeh, Iran; b Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran; c Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran |
| 基金项目： | supported by Islamic Azad University,Omidiyeh Branch |
| 摘 要： | Nanocrystalline MgO with a relatively high surface area and mesoporous structure was synthesized by a surfactant assisted precipitation method for use as the support of nickel catalysts for steam reforming of methane. The samples were characterized by X‐ray diffraction, N2 adsorption, temperature‐programmed reduction, temperature‐programmed oxidation, scanning electron microscopy, and transmission electron microscopy. The catalysts showed high catalytic activity and good stability in the steam reforming of methane. Increasing the nickel loading up to 10 wt% gave increased activity. Catalysts with higher nickel loadings showed more deposited carbon after reaction. The excellent anti‐coking performance of the catalysts was attributed to the formation of a nickel‐magnesia solid solution, basicity of the support surface, and nickel‐support interaction. |
| 关 键 词： | Steam reforming Carbon deposition Nickel‐magnesia solid solution |
| 收稿时间： | 2013-02-23 |
A nanocrystalline MgO support for Ni catalysts for steam reforming of CH4 |
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| Mahmood ANDACHE,Mehran REZAEI,Mansour KAZEMI MOGHADAM.A nanocrystalline MgO support for Ni catalysts for steam reforming of CH4[J].Chinese Journal of Catalysis,2013,34(7):1443-1448. | |
| Authors: | Mahmood ANDACHE a Mehran REZAEI b Mansour KAZEMI MOGHADAM c a |
| Institution: | a Department of Chemistry, Islamic Azad University, Omidiyeh Branch, Omidiyeh, Iran; b Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran; c Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran |
| Abstract: | Nanocrystalline MgO with a relatively high surface area and mesoporous structure was synthesized by a surfactant assisted precipitation method for use as the support of nickel catalysts for steam reforming of methane. The samples were characterized by X-ray diffraction, N2 adsorption, temperature-programmed reduction, temperature-programmed oxidation, scanning electron microscopy, and transmission electron microscopy. The catalysts showed high catalytic activity and good stability in the steam reforming of methane. Increasing the nickel loading up to 10 wt% gave increased activity. Catalysts with higher nickel loadings showed more deposited carbon after reaction. The excellent anti-coking performance of the catalysts was attributed to the formation of a nickel-magnesia solid solution, basicity of the support surface, and nickel-support interaction. |
| Keywords: | Steam reforming Carbon deposition Nickel-magnesia solid solution |
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