[1]李 楠,付文华,史明豪,等.NiCu/SiO2复合催化剂的制备及其苯甲醇脱氢性能[J].常州大学学报(自然科学版),2023,35(06):26-34.[doi:10.3969/j.issn.2095-0411.2023.06.004]
　LI Nan,FU Wenhua,SHI Minghao,et al.Preparation of NiCu/SiO2 catalyst and its performance for dehydrogenation of benzyl alcohol[J].Journal of Changzhou University(Natural Science Edition),2023,35(06):26-34.[doi:10.3969/j.issn.2095-0411.2023.06.004]
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NiCu/SiO2复合催化剂的制备及其苯甲醇脱氢性能()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第35卷
期数:
2023年06期
页码:
26-34
栏目:
化学化工：多相催化专题
出版日期:
2023-11-28

文章信息/Info

Title:
Preparation of NiCu/SiO2 catalyst and its performance for dehydrogenation of benzyl alcohol
文章编号:
2095-0411(2023)06-0026-09
作者:
李 楠;  付文华;  史明豪;  李正萍;  马江权
(常州大学 石油化工学院, 江苏 常州 213164; 江苏省先进催化与绿色制造协同创新中心(常州大学), 江苏 常州 213164)
Author(s):
LI Nan;  FU Wenhua;  SHI Minghao;  LI Zhengping;  MA Jiangquan
(School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; Jiangsu Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China)
关键词:
NiCu;  苯甲醇;  催化脱氢;  苯甲醛
Keywords:
NiCu;  benzyl alcohol;  catalytic dehydrogenation;  benzaldehyde
分类号:
TQ 426.8
DOI:
10.3969/j.issn.2095-0411.2023.06.004
文献标志码:
A
摘要:
通过湿化学法制备了一系列微量Ni金属掺杂的NiCu/SiO2复合催化剂,并研究了其催化苯甲醇脱氢制苯甲醛的活性。同时,考察了Ni和Cu/SiO2质量配比以及反应温度对脱氢反应转化率、选择性的影响。结果表明,在Cu/SiO2催化剂中掺杂微量金属Ni能够大幅提高脱氢反应的活性,并且当反应温度为340 ℃,Ni和Cu/SiO2质量配比为1:200的NiCu/SiO2(1:200)催化剂表现出优异的苯甲醇转化率和苯甲醛选择性,分别达90.4%和84.3%。进一步,通过XRD,FT-IR,SEM,TEM,XPS和BET等技术对催化剂进行表征。结果证实高度均匀分散的微量Ni金属暴露出更多的Cu活性位点,同时微量的Ni掺杂有利于提高脱氢反应的转化率和选择性。
Abstract:
A series of Ni doped NiCu/SiO2 composite catalysts were prepared by wet chemical method, and their catalytic activities for dehydrogenation of benzyl alcohol to benzaldehyde were studied. At the same time, the effects of the mass ratio of Ni and Cu/SiO2 and reaction temperature on the conversion and selectivity of dehydrogenation were investigated. The results show that the activity of dehydrogenation reaction can be greatly improved by doping trace metal Ni into Cu/SiO2 catalyst, and when the reaction temperature is 340 ℃, the NiCu/SiO2(1:200)catalyst shows excellent benzyl alcohol conversion and benzaldehyde selectivity, reaching 90.4% and 84.3%, respectively. Furthermore, the catalysts were characterized by XRD, FT-IR, SEM, TEM, XPS, BET technologies. The results show that highly uniformly dispersed trace Ni metals expose more Cu active sites, and trace Ni doping is beneficial to improve the conversion rate and selectivity of dehydrogenation reaction.

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备注/Memo

备注/Memo:
收稿日期: 2023-03-11。
基金项目: 常州市应用基础研究计划资助项目(CJ20220152)。
作者简介: 李楠(1994—), 女, 安徽宿州人, 博士, 讲师。通信联系人:马江权(1969—), E-mail: majiangquan@126.com
更新日期/Last Update: 1900-01-01