文章摘要
张田田,辛秀兰,宋楠,蒋冰,徐宝财.醇的种类对球形γ-Al2O3多孔结构的影响[J].精细化工,2020,37(8):
醇的种类对球形γ-Al2O3多孔结构的影响
Effect of the type of alcohol on the porous structure of spherical γ-Al2O3
投稿时间:2020-05-25  修订日期:2020-07-07
DOI:
中文关键词: 球形γ-Al2O3  大孔-介孔结构    溶胶-油氨柱  异丙醇铝
英文关键词: spherical γ-Al2O3  macropore-mesoporous structure  organic alcohol  Sol–gel  aluminum isopropoxide
基金项目:国家科技计划项目申报中心重点研发计划:2017YFB0308701
作者单位E-mail
张田田 北京工商大学轻工科学技术学院 tiantianzhangzzz@163.com 
辛秀兰 北京工商大学轻工科学技术学院 xinxl2007@126.com 
宋楠 北京工商大学轻工科学技术学院  
蒋冰 北京工商大学轻工科学技术学院  
徐宝财 北京工商大学轻工科学技术学院  
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中文摘要:
      以异丙醇铝为原料,稀硝酸为凝胶剂,采用溶胶-油氨柱法制备具有多孔结构的球形γ-Al2O3。探究不同碳链长度的醇作为扩孔剂对其多孔结构的影响,利用XRD、FT-IR、SEM、TG-DTG和比表面积及孔径分析仪进行了结构表征。结果表明:醇的种类对球形γ-Al2O3的多孔结构产生影响,其中碳链越长的醇,制备出的球形γ-Al2O3孔结构越丰富;加入正己醇所制备的球形γ-Al2O3比表面积较大,可达到270.9 m2/g。具有高球形度、丰富孔结构的球形γ-Al2O3可进一步应用于催化、吸附等领域。
英文摘要:
      Using aluminum isopropoxide as the raw material and dilute nitric acid as the solving agent, the spherical γ-Al2O3 with porous structure was successfully prepared by the sol-oil-ammonia drop method. The effects of alcohols with different carbon chain lengths as pore-expanding agents on their porous structure were investigated. The structure was characterized by XRD, FT-IR, SEM, TG, DTG and specific surface area and pore size analyzers. The results show that the type of organic alcohol has an effect on the porous structure of spherical γ-Al2O3. The longer the carbon chain alcohol, the richer the pore structure of the spherical γ-Al2O3 prepared; Larger, can reach 270.9 m2 / g. The spherical γ-Al2O3 with high sphericity and rich pore structure can be further used in catalysis, adsorption and other fields.
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