高铜含量中孔Cu-Si二元氧化物的合成和表征

高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (2): 320.

高铜含量中孔Cu-Si二元氧化物的合成和表征

孔岩¹, 陈嘉伊¹, 郭宪吉¹, 马会宣^1,2, 侯文华¹, 颜其洁¹

1. 南京大学化学化工学院介观材料科学实验室, 南京 210093;
2. 山西运城学院, 运城 044000

收稿日期:2003-03-02 出版日期:2004-02-24 发布日期:2004-02-24
通讯作者: 颜其洁(1933年出生),女,教授,博士生导师,主要从事催化材料研究.E-mail;qyan@nju.edu.cn E-mail:qyan@nju.edu.cn
基金资助:
国家自然科学基金(批准号;20173026);南京大学现代分析中心测试基金资助

Synthesis and Characterization of Cu(Ⅱ)-contained MCM41 with High Content of Copper

KONG Yan¹, CHEN Jia-Yi¹, GUO Xian-Ji¹, MA Hui-Xuan^1,2, HOU Wen-Hua¹, YAN Qi-Jie¹

1. Laboratory of Mesoscopic Materials Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;
2. Shanxi Yuncheng College, Yuncheng 044000, China

Received:2003-03-02 Online:2004-02-24 Published:2004-02-24

摘要/Abstract

摘要： 采用CTAB(十六烷基三甲基溴化铵)为模板剂,Na₂SiO₃·10H₂O为硅源,Cu(NH₃)₄(NO₃)₂为铜源,在常温下成功地合成出含铜质量分数高达26%,具有中孔结构的硅基氧化铜复合材料.较系统地研究了反应时间、温度、pH值和铜掺入量等对产物性能的影响.用XRD,HRTEM,FTIR,BET,TG-DTA,ICP和XPS等手段对合成产物的结构进行了表征.

关键词: 硅基氧化铜, 中孔材料, 合成条件, 铜含量, 表征

Abstract: A series of Cu-containing MCM41 with high contents of copper was synthesized at room temperature by using Na₂SiO₃ as Si sources and Cu(NH₃)₄(NO₃)₂ as Cu sources and cetyltrimethyl ammonium bromide(CTAB) as the template. The influence of reaction conditions such as time, temperature, pH value and copper contents upon the structure of the materials was systematically studied. The mesoporous material containing up to 26%(mass fraction) copper was successfully synthesized under the best reaction conditions(t=20 ℃; pH=9—10; t=72 h). The structure of the materials was characterized by XRD, HRTEM, BET, TG-DTA, FTIR, ICP and XPS. The obtained material has a high surface area of 525 m²/g with a narrow pore distribution at 3.11 nm.

Key words: Cu-containing MCM41, Mesoporous material, Synthesis condition, Copper content, Characterization

中图分类号:

O643

TrendMD:

孔岩, 陈嘉伊, 郭宪吉, 马会宣, 侯文华, 颜其洁. 高铜含量中孔Cu-Si二元氧化物的合成和表征. 高等学校化学学报, 2004, 25(2): 320.

KONG Yan, CHEN Jia-Yi, GUO Xian-Ji, MA Hui-Xuan, HOU Wen-Hua, YAN Qi-Jie . Synthesis and Characterization of Cu(Ⅱ)-contained MCM41 with High Content of Copper. Chem. J. Chinese Universities, 2004, 25(2): 320.

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