[1]薛冰,刘香梅,李秋雨,等.氨气功能化活性炭高效催化脑文格缩合反应[J].常州大学学报(自然科学版),2018,30(03):34-40.[doi:10.3969/j.issn.2095-0411.2018.03.004]
 XUE Bing,LIU Xiangmei,LI Qiuyu,et al.Knoevenagel Condensation Reaction Efficiently Catalyzed by Activated Carbon Functionalized by Ammonia Gas[J].Journal of Changzhou University(Natural Science Edition),2018,30(03):34-40.[doi:10.3969/j.issn.2095-0411.2018.03.004]
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氨气功能化活性炭高效催化脑文格缩合反应()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
30
期数:
2018年03期
页码:
34-40
栏目:
化学化工
出版日期:
2018-05-28

文章信息/Info

Title:
Knoevenagel Condensation Reaction Efficiently Catalyzed by Activated Carbon Functionalized by Ammonia Gas
作者:
薛冰刘香梅李秋雨柳娜李永昕
江苏省绿色催化材料与技术重点实验室(常州大学),常州大学 石油化工学院,江苏 常州 213164
Author(s):
XUE Bing LIU Xiangmei LI Qiuyu LIU Na LI Yongxin
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
关键词:
氨气 改性 活性炭 苯甲醛 脑文格缩合
Keywords:
ammonia modified activated carbon benzaldehyde Knoevenagel condensation
分类号:
TQ 316.334
DOI:
10.3969/j.issn.2095-0411.2018.03.004
文献标志码:
A
摘要:
室温一步气固反应制备了氨气功能化活性炭催化剂。通过傅立叶变换红外光谱(FT-IR)、元素分析、NH3程序升温脱附(NH3-TPD)和热重分析仪(TG)等技术对催化剂进行表征。结果表明,氨气改性活性炭是氨气经化学吸附于活性炭表面,接受相邻的酸性基团质子化形成了NH+4。在苯甲醛和丙二腈的Knoevenagel缩合反应中,氨气功能化活性炭催化剂表现出较高的催化活性,在60 ℃,4 h反应条件下,苯甲醛转化率高达93.0%,目标产物选择性高达97.3%。反应结束后催化剂经过简单过滤回收即可重复使用。
Abstract:
The ammonia functionalized activated carbon catalyst was prepared by one step gas-solid phase reaction at room temperature. The properties of the catalysts were characterized by means of Fourier transform infrared spectroscopy, elementary analysis, NH3 temperature programmed desorption and thermogravimetric analysis. The results show that ammonia is chemically adsorbed on the surface of activated carbon during the process of ammonia modified activated carbon, and NH+4 is protonated by adjacent acidic groups. In the Knoevenagel condensation reaction of benzaldehyde and malononitrile, the ammonia gas modified activated carbon catalyst exhibits high catalytic activity. After 4 h, the conversion of benzaldehyde can reach 93.0% at 60 ℃, and the target product selectivity reaches up to 97.3%. Furthermore, the catalyst can be reused after simple filtration.

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备注/Memo

备注/Memo:
收稿日期:2017-12-10。
基金项目:国家自然科学基金资助项目(21376032,21673024)。
作者简介:薛冰(1978—),男,河南南阳人,博士,副研究员。E-mail:xuebing@cczu.edu.cn
更新日期/Last Update: 2018-05-20