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[1]王磊济,费兆阳,陈献,等.棒状TiO2负载Ru催化苯选择性加氢反应[J].南京工业大学学报(自然科学版),2019,41(02):155-160.[doi:10.3969/j.issn.1671-7627.2019.02.004]
 WANG Leiji,FEI Zhaoyang,CHEN Xian,et al.Selective hydrogenation of benzene over Ru catalysts supported on rod TiO2[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(02):155-160.[doi:10.3969/j.issn.1671-7627.2019.02.004]
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棒状TiO2负载Ru催化苯选择性加氢反应()
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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02期
页码:
155-160
栏目:
出版日期:
2019-03-19

文章信息/Info

Title:
Selective hydrogenation of benzene over Ru catalysts supported on rod TiO2
文章编号:
1671-7627(2019)02-0155-06
作者:
王磊济1费兆阳12陈献1汤吉海1崔咪芬1乔旭12
1.南京工业大学 化工学院,江苏 南京 210009; 2.南京工业大学 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
WANG Leiji1FEI Zhaoyang12CHEN Xian1TANG Jihai1CUI Mifen1QIAO Xu12
1.College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China; 2.State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
TiO2纳米棒 环己烯 焙烧温度 选择性加氢
Keywords:
TiO2 nanorods cyclohexene calcination temperature selective hydrogenation
分类号:
O643.32
DOI:
10.3969/j.issn.1671-7627.2019.02.004
文献标志码:
A
摘要:
以不同焙烧温度的TiO2纳米棒为载体,采用化学还原浸渍法制备Ru/TiO2催化剂。利用X线衍射(XRD)、H2化学吸附、扫描电子显微镜(SEM)和NH3程序升温脱附(NH3-TPD)等手段表征催化剂的物理化学性质,并考察催化剂在苯选择性加氢反应中的催化性能。结果表明:焙烧温度并未改变TiO2的晶型结构及形貌,但随着载体焙烧温度的升高,Ru粒子的分散度减小,从而使Ru/TiO2催化剂的活性降低; 同时,随着Ru/TiO2催化剂酸量的减小,环己烯吸附量减小,环己烯的选择性提高; 700 ℃焙烧的TiO2负载的Ru催化剂上环己烯收率最高(41%)。
Abstract:
Ru/TiO2 catalysts using nanorod TiO2 with different calcination temperatures as the supports were prepared by the wetness impregnation-chemical reduction.The catalysts were characterized by X-ray diffraction(XRD),H2 chemisorption,scanning electron microscopy(SEM)and NH3 temperature programmed desorption(NH3-TPD).The catalytic performances of Ru/TiO2 catalysts were also evaluated by the selective hydrogenation of benzene to cyclohexene.Results showed that the calcination temperature did not change the crystal structure and morphology of TiO2.However,with the increase of the calcination temperature of the support,the dispersion of Ru particles decreased and the activity of Ru/TiO2 catalyst was reduced.With the decrease of the acidity amount of Ru/TiO2 catalyst,the adsorption of cyclohexene decreased,and the selectivity of cyclohexene was improved.When the calcination temperatures was 700 ℃,the highest yield(41%)of cyclohexene on Ru supported TiO2 was obtained.

参考文献/References:

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相似文献/References:

[1]王磊济,费兆阳,陈献,等.苯选择性加氢RuZn-ZrO2催化剂的基底形貌效应[J].南京工业大学学报(自然科学版),2019,41(01):15.[doi:10.3969/j.issn.1671-7627.2019.01.003]
 WANG Leiji,FEI Zhaoyang,CHEN Xian,et al.Substrate morphology effect of RuZn-ZrO2 catalyst on selective hydrogenation of benzene[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(02):15.[doi:10.3969/j.issn.1671-7627.2019.01.003]

备注/Memo

备注/Memo:
收稿日期:2017-06-03
基金项目:国家自然科学基金(21306089); 江苏高校优势学科建设工程
作者简介:王磊济(1991—),男,E-mail:18260032083@163.com; 费兆阳(联系人),副教授,E-mail:zhaoyangfei@njtech.edu.cn; 乔旭(联系人),教授,E-mail:qct@njtech.edu.cn.
引用本文:王磊济,费兆阳,陈献,等.棒状TiO2负载Ru催化苯选择性加氢反应[J].南京工业大学学报(自然科学版),2019,41(2):155-160..
更新日期/Last Update: 2019-03-31