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[1]肖成超,陈长林.介孔钨锆复合氧化物载铂催化剂制备及其催化甘油氢解性能[J].南京工业大学学报(自然科学版),2019,41(01):1-7.[doi:10.3969/j.issn.1671-7627.2019.01.001]
 XIAO Chengchao,CHEN Changlin.Preparation of mesoporous tungsten-zirconium composite oxides supported platinum catalyst and its glycerol hydrogenolysis activity[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(01):1-7.[doi:10.3969/j.issn.1671-7627.2019.01.001]
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介孔钨锆复合氧化物载铂催化剂制备及其催化甘油氢解性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年01期
页码:
1-7
栏目:
出版日期:
2019-01-28

文章信息/Info

Title:
Preparation of mesoporous tungsten-zirconium composite oxides supported platinum catalyst and its glycerol hydrogenolysis activity
文章编号:
1671-7627(2019)01-0001-07
作者:
肖成超陈长林
南京工业大学 化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
XIAO ChengchaoCHEN Changlin
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
Zr(OH)4 WO3 ZrO2 介孔钨锆复合氧化物 Pt 甘油氢解
Keywords:
zirconium hydroxide tungsten oxide zirconia mesoporous tungsten-zirconium composite oxides platinum glycerol hydrogenolysis
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2019.01.001
文献标志码:
A
摘要:
使用共沉淀-浸渍法制备介孔钨锆复合氧化物。通过X线衍射(XRD)、NH3程序升温脱附(NH3-TPD)、透射电子显微镜(TEM)和N2物理吸附-脱附等方法对介孔钨锆复合氧化物进行表征。通过连续流动的固定床反应器考察钨锆复合氧化物载铂催化剂对甘油氢解反应的催化性能。结果表明:与商业Zr(OH)4制备的钨锆复合氧化物相比,由共沉淀法制得的Zr(OH)4制备的钨锆复合氧化物具有最大的总酸量和最多的弱酸含量。并且由共沉淀-浸渍法制备的介孔钨锆复合氧化物颗粒团聚现象较少,更加疏松分散,具有最大的介孔(17.8 nm)、最小的平均粒径(9.3 nm)和最大的比表面积(87 m2/g),其在负载铂后对甘油氢解反应的活性也最高。
Abstract:
Mesoporous tungsten-zirconium composite oxides were prepared via coprecipitation-impregnation.The tungsten-zirconium composite oxides were characterized by X-ray diffraction(XRD),NH3-temperature programmed desorption(NH3-TPD),transmission electron microscope(TEM)and N2 adsorption-desorption.Glycerol hydrogenolysis activity was evaluated over platinum-supported catalysts of a series of tungsten-zirconium composite oxides in a fixed-bed continuous flow reactor.Results showed that compared to the commercial zirconium hydroxide,the tungsten-zirconium composite oxide prepared with synthetic tetragonal zirconia had maximum total acidity,and maximum weak acidity percentage.The particles of the tungsten-zirconium composite oxide prepared with synthetic zirconium hydroxide dispersed well,the mesopore was maximum(17.8 nm),the average was minimum(9.3 nm)and specific surface area was maximum(87 m2/g).The activity of platinum-supported catalyst of the tungsten-zirconium composite oxide prepared with synthetic zirconium hydroxide was better than the others.

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备注/Memo

备注/Memo:
收稿日期:2017-05-23
基金项目:江苏省产学研前瞻性研究项目(BY2015005-08)
作者简介:肖成超(1991—),男,E-mail:xiaocc1991@126.com; 陈长林(联系人),教授,E-mail:clchen@njtech.edu.cn.
引用本文:肖成超,陈长林.介孔钨锆复合氧化物载铂催化剂制备及其催化甘油氢解性能[J].南京工业大学学报(自然科学版),2019,41(1):1-7..
更新日期/Last Update: 2019-02-26