[1]鲁墨弘,周秀莲,朱 劼,等.甲醇为氢源四氯化碳原位加氢脱氯反应研究[J].常州大学学报(自然科学版),2016,(03):31-35.[doi:10.3969/j.issn.2095-0411.2016.03.007]
　LU Mohong,ZHOU Xiulian,ZHU Jie,et al.Catalytic Hydrodechlorination of Carbon Tetrachloride with Methanol as H-Donor over Ag/C Catalyst[J].Journal of Changzhou University(Natural Science Edition),2016,(03):31-35.[doi:10.3969/j.issn.2095-0411.2016.03.007]
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甲醇为氢源四氯化碳原位加氢脱氯反应研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年03期
页码:
31-35
栏目:
出版日期:
2016-05-30

文章信息/Info

Title:
Catalytic Hydrodechlorination of Carbon Tetrachloride with Methanol as H-Donor over Ag/C Catalyst
作者:
鲁墨弘; 周秀莲; 朱 劼; 李明时; 朱建军
常州大学 江苏省绿色催化材料与技术重点实验室,江苏 常州 213164
Author(s):
LU Mohong;  ZHOU Xiulian;  ZHU Jie;  LI Mingshi;  ZHU Jianjun
LU Mohong, ZHOU Xiulian, ZHU Jie, LI Mingshi, ZHU Jianjun
关键词:
四氯化碳;  甲醇;  Ag/C;  加氢脱氯;  反应机理
Keywords:
carbon tetrachloride;  methanol;  Ag/C catalyst;  hydrodechlorination;  reaction mechanism
分类号:
TQ 316.334
DOI:
10.3969/j.issn.2095-0411.2016.03.007
文献标志码:
A
摘要:
制备了一系列不同Ag含量的Ag/C催化剂,以甲醇为氢源,研究了四氯化碳原位加氢脱氯的反应性能。采用N2物理吸附、XRD、TEM 和XPS等技术对催化剂反应前后的性质进行表征。结果显示,Ag催化剂在反应过程中转变为AgCl,但是催化剂上Ag0和Ag+1物种共存。甲醇分解产生的甲醛促进了Ag+1向Ag0和的转变。从产物分布分析,二氯甲烷和氯仿的选择性保持6:4,说明这两种反应是平行反应。结合产物组成和表征结果提出了初步反应机理。
Abstract:
A series of Ag/C catalysts with different Ag loading were prepared and their performancesin catalytic hydrodechlorination of carbon tetrachloride(CCl4)were investigated with methanol as H-donor.The catalysts were characterized with N2 adsorption, XRD, TEM and XPS. The results show that Ag was transformed into AgCl during the reaction and Ag0 and Ag+1coexisted on the surface of catalyst indicated by XPS. Ag+1 was reduced into Ag0 by the formaldehyde(HCHO)formed from the dehydrogenation of methanol.Parallel reaction product CH2Cl2 and CHCl3 with a molar ratio of 6:4 was obtained during the catalytic dechlorination of CCl4 in methanol solution.The reaction mechanism was proposed according to the reaction results and catalysts characterization.

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备注/Memo

备注/Memo:
收稿日期:2015-03-30。基金项目:国家自然科学基金资助项目(21307009)。作者简介:鲁墨弘(1978—),男,湖北天门人,博士,副教授。
更新日期/Last Update: 2016-05-20