| Al2O3修饰Ni/TiO2催化剂上甲烷干重整反应 |
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| 引用本文： | 黄健,常瑜,张彩云,刘赵荣,王玉春,魏壮伟. Al2O3修饰Ni/TiO2催化剂上甲烷干重整反应[J]. 中山大学学报(自然科学版), 2007, 46(Z1) |
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| 作者姓名： | 黄健 常瑜 张彩云 刘赵荣 王玉春 魏壮伟 |
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| 作者单位： | 运城学院 山西运城044006(黄健，刘赵荣，王玉春，魏壮伟)，太原理工大学 山西太原030024(常瑜)，山西师范大学 山西临汾041004(张彩云) |
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| 摘 要： | 通过Al2O3修饰的Ni-TiO2-Al2O3干凝胶催化剂,该催化剂在973K条件下焙烧10h后比表面积为363m2/g。孔分布介于2.5～2.7nm之间。采用BET和X-射线衍射考察了Al2O3组份对Ni/TiO2催化剂的影响。结果表明,Al2O3的加入使催化剂颗粒度变小,镍的分散度提高,抑制了Ni/TiO2催化剂的积碳,从而明显的提高了Ni-TiO2-Al2O3催化剂上甲烷和二氧化碳重整反应的活性和稳定性。
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| 关 键 词： | 甲烷重整 Ni基催化剂 Al2O3修饰 |
Al2O3 Modifying Ni/TiO2 Catalysts over CH4 Dry Reforming |
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| HUANG Jian,CHANG Yu,ZHANG Cai-yun,LIU Rong-zhao,WANG Yu-chun,WEI Wei-zhuang. Al2O3 Modifying Ni/TiO2 Catalysts over CH4 Dry Reforming[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2007, 46(Z1) |
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| Authors: | HUANG Jian CHANG Yu ZHANG Cai-yun LIU Rong-zhao WANG Yu-chun WEI Wei-zhuang |
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| Abstract: | Addition of aluminum to Ni/TiO2 improves the stability of the catalyst in CH4 dry reforming .The resulting Ni/TiO2-Al2O3 xerogel, after calcinations at 973K for 10 h, had a BET surface area in excess of 363m2/g, contained mesoprores in the range 2.5~2.7nm. Nitrogen adsorption and X-ray diffraction were used to characterize the function of addition aluminum to Ni/TiO2 catalyst. The role of aluminum addition promotes the formation of large metallic Ni ensembles increase the dispersion of Ni, suppression of Ni/TiO2-Al2O3 catalyst deactivation and carbon deposition. |
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| Keywords: | CH4 dry reforming Nickel catalysis Al2O3 modifying |
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