[1]许杰,文琳智,郑欢,等.介孔氧化铈负载Pd催化苯甲醇选择氧化[J].常州大学学报(自然科学版),2020,32(06):22-30.[doi:10.3969/j.issn.2095-0411.2020.06.004]
　XU Jie,WEN Linzhi,ZHENG Huan,et al.Selective Oxidation of Benzyl Alcohol Catalyzed by Pd Catalysts Supported on Mesoporous Ceria[J].Journal of Changzhou University(Natural Science Edition),2020,32(06):22-30.[doi:10.3969/j.issn.2095-0411.2020.06.004]
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介孔氧化铈负载Pd催化苯甲醇选择氧化()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年06期
页码:
22-30
栏目:
化学化工
出版日期:
2020-11-28

文章信息/Info

Title:
Selective Oxidation of Benzyl Alcohol Catalyzed by Pd Catalysts Supported on Mesoporous Ceria
文章编号:
2095-0411(2020)06-0022-09
作者:
许杰; 文琳智; 郑欢; 薛冰
常州大学 石油化工学院,江苏 常州 213164
Author(s):
XU Jie;  WEN Linzhi;  ZHENG Huan;  XUE Bing
School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
关键词:
选择氧化;  氧化铈;  介孔材料;  苯甲醇;  苯甲醛
Keywords:
selective oxidation;  ceria;  mesoporous materials;  benzyl alcohol;  benzaldehyde
分类号:
O 643
DOI:
10.3969/j.issn.2095-0411.2020.06.004
文献标志码:
A
摘要:
以十六烷及三甲基溴化铵为软模板,六水硝酸铈为前驱体,制备了具有介孔结构的氧化铈材料(CeO2-meso)。通过浸渍法制备了负载Pd的催化剂(Pd/CeO2-meso)。采用N2吸脱附、X射线衍射、X射线光电子能谱和O2程序升温脱附对制得的Pd/CeO2-meso进行理化性质表征。结果显示:Pd的负载对CeO2-meso的介孔结构和晶体结构影响很小。在以氧气为氧化剂的苯甲醇的选择氧化反应中,Pd/CeO2-meso较Pd/CeO2-cal(普通焙烧制得的CeO2负载的催化剂)具有更高的催化活性。当反应时间为3 h,反应温度为90 ℃时,苯甲醛的最高产率可达到88%。
Abstract:
Mesoporous ceria(CeO2-meso)was prepared using cetyl trimethyl ammonium bromide(CTAB)as a soft-templating agent and Ce(NO3)3·6H2O as a precursor. The CeO2-meso was employed as a support to load Pd via a wet impregnation method and Pd/CeO2-meso was obtained. The physicochemical properties of the synthesized materials were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and O2-temperature programmed desorption. The results indicated that after loading with Pd, the overall mesoporous structure and crystallinity of CeO2-meso had hardly been affected. In the selective oxidation of benzyl alcohol using oxygen as an oxidant, Pd/CeO2-meso demonstrated higher catalytic activity than Pd/CeO2-cal(the ceria support was prepared via direct calcination). As the reaction time was 3 h and the temperature was 90 ℃, the Pd/CeO2-meso catalysts afforded the highest yield up to 88%.

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备注/Memo

备注/Memo:
收稿日期:2020-08-23。
基金项目:中国石油科技创新
基金项目(2018D-5007-0508); 江苏省高校自然科学基金重大项目(18KJA150001); 江苏省研究生科研创新计划资助项目(SJKY19_2190)。
作者简介:许杰(1982—),男,江苏丹阳人,博士,副教授。E-mail:shine6832@163.com
更新日期/Last Update: 1900-01-01