| 选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比 |
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| 引用本文： | 杜云贵,徐婷,辜敏.选择性催化还原(SCR)脱硝催化剂钛钨粉原始粉体的对比[J].环境化学,2012,31(8):1251-1255. |
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| 作者姓名： | 杜云贵 徐婷 辜敏 |
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| 作者单位： | 复杂煤层瓦斯抽采国家与地方联合工程实验室,重庆大学煤矿灾害动力学与控制国家重点实验室,重庆大学资源及环境科学学院,重庆400044 |
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| 基金项目： | 国家高技术研究发展计划(863) |
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| 摘 要： | 采用XRF、XRD、低温N2吸附曲线、SEM和FT-IR考察了国产和进口钛钨(WO3/TiO2)粉的组成及其微观结构.结果表明,国产和进口钛钨粉中Ti和W的含量相差不大,但是国产钛钨粉都含有少量P,而国外钛钨粉O和S含量较大.国产和进口钛钨粉中TiO2都为锐钛矿型晶型;其表面官能团基本相同;钛钨粉颗粒形貌类似,都为多孔物质,其比表面积相差不大,但是进口样品的孔容高于国产样品.
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| 关 键 词： | 钛钨粉 组成 结构 表面性质 脱硝 催化剂载体 |
Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts |
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| DU Yungui,XU Ting,GU Min.Comparison of domestic and imported WO3/TiO2 powder raw-materials for the production of de-NOx SCR catalysts[J].Environmental Chemistry,2012,31(8):1251-1255. |
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| Authors: | DU Yungui XU Ting GU Min |
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| Institution: | *(State and Local Joint Engineering Laboratory of Methane Drainage in Complex Coal Gas Seam,State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University,College of Resources and Environmental Science,Chongqing University,Chongqing,400044,China) |
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| Abstract: | In this paper,using XRF,XRD,N2 adsorption isothermal curve,SEM and FT-IR,the composition and microstructures of the domestic and imported WO3/TiO2 powder raw-materials were carefully analyzed.It was found that the contents of Ti and W did not differ much for both kinds of WO3/TiO2 powder raw-materials.However,the domestic ones contained small amount of P,while the contents of O and S in the imported material were higher.The TiO2 in both raw-materials were in anatase phase and the functional groups on the raw-materials surface were similar.Both materials were porous with similar morphology and specific surface area.However,the micropore volume of the imported raw-material was larger than the domestic ones. |
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| Keywords: | WO3/TiO2 composition structure surface properties de-NOx catalyst carrier |
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