超临界抗溶剂法制备纳米氧化铝颗粒

催化学报 ›› 2007, Vol. 28 ›› Issue (10): 890-894.

超临界抗溶剂法制备纳米氧化铝颗粒

何春燕,姜浩锡,张敏华

天津大学石油化工技术开发中心, 绿色合成与转化教育部重点实验室, 天津 300072

收稿日期:2007-10-25 出版日期:2007-10-25 发布日期:2011-10-28

Preparation of Alumina Nanoparticles by Supercritical Antisolvent Process

HE Chunyan, JIANG Haoxi*, ZHANG Minhua

Key Laboratory for Green Chemical Technology of Ministry of Education, Research and Development Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China

Received:2007-10-25 Online:2007-10-25 Published:2011-10-28

摘要/Abstract

摘要： 以CO2为抗溶剂介质,无水乙醇为溶剂,采用超临界抗溶剂法制备了Al2O3前驱体硝酸铝纳米颗粒,考察了温度和溶液浓度等因素对制备过程的影响,并通过焙烧前驱体硝酸铝制得了纳米Al2O3球形颗粒. 采用热重-质谱、X射线衍射、透射电镜和场发射透射电镜对所制备的硝酸铝和Al2O3纳米颗粒进行了表征,并用H2程序升温还原技术初步考察了纳米Al2O3负载Ni催化剂的还原性能,发现纳米Al2O3比一般Al2O3载体对活性组分Ni具有更好的分散性能.

关键词: 超临界抗溶剂法, 二氧化碳, 纳米颗粒, 硝酸铝, 氧化铝

Abstract: The supercritical antisolvent (SAS) process is a novel technique for micronization and has a promising prospect in the production of thermosensitive explosives, polymer microspheres, medicines, superconductors, catalysts, and dyestuffs. Using carbon dioxide as the antisolvent medium and anhydrous ethanol as the solvent, nanoparticles of the aluminum nitrate precursor were prepared by the SAS process. The effects of preparation conditions including precipitation temperature and solution concentration on the SAS process were investigated. Spherical nanoparticles of alumina were prepared through calcination of the aluminum nitrate precursor. The nanoparticles were characterized by thermogravity-mass spectroscopy,X-raydiffraction, transmission electron microscopy, and field emission gun transmission electron microscopy. The reduction properties of nickel supported by SAS alumina nanoparticles were studied by temperature-programmed reduction. It is found that alumina nanoparticles show better dispersion properties for the active component nickel than the commercialγ-Al2O3sample.

Key words: supercritical antisolvent process, carbon dioxide, nanoparticle, aluminum nitrate, alumina

何春燕;姜浩锡;张敏华. 超临界抗溶剂法制备纳米氧化铝颗粒[J]. 催化学报, 2007, 28(10): 890-894.

HE Chunyan;JIANG Haoxi*;ZHANG Minhua. Preparation of Alumina Nanoparticles by Supercritical Antisolvent Process[J]. Chinese Journal of Catalysis, 2007, 28(10): 890-894.

×
扫码分享

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.cjcatal.com/CN/

https://www.cjcatal.com/CN/Y2007/V28/I10/890

[1]	王思恺, 闵祥婷, 乔波涛, 颜宁, 张涛. 单原子催化: 追寻催化领域的“圣杯”[J]. 催化学报, 2023, 52(9): 1-13.
[2]	邹心仪, 顾均. 酸性条件下二氧化碳高效电还原策略[J]. 催化学报, 2023, 52(9): 14-31.
[3]	乔蔚, 于立策, 常进法, 杨甫林, 冯立纲. MoSe₂纳米片耦合Pt纳米颗粒用于高效双功能催化甲醇辅助水电解制氢[J]. 催化学报, 2023, 51(8): 113-123.
[4]	肖汉至, 于博, 颜思顺, 章炜, 李茜茜, 鲍莹, 罗书平, 叶剑衡, 余达刚. 可见光催化二氧化碳参与非活化烯烃1,3-双羧基化反应[J]. 催化学报, 2023, 50(7): 222-228.
[5]	李轩, 蒋兴星, 孔艳, 孙建桔, 胡琪, 柴晓燕, 杨恒攀, 何传新. GaN/In₂O₃的界面工程用于高效电催化CO₂还原制备甲酸[J]. 催化学报, 2023, 50(7): 314-323.
[6]	李慧珍, 陈艳蕾, 牛青, 王小凤, 刘哲源, 毕进红, 于岩, 李留义. 具有定向电荷传递能力的晶态线型聚酰亚胺材料驱动光催化CO₂还原[J]. 催化学报, 2023, 49(6): 152-159.
[7]	李孜孜, 王嘉蔚, 黄衍钧, 欧阳钢锋. 钴(II)酞菁全氟化策略用于提升非贵金属体系中光催化还原CO₂性能[J]. 催化学报, 2023, 49(6): 160-167.
[8]	杨文倩, 薛自前, 杨俊, 冼家慧, 刘庆林, 范雅楠, 郑凯, 廖锫钦, 苏徽, 刘庆华, 李光琴, 苏成勇. 氮掺杂多孔碳负载Fe纳米颗粒用于高性能电催化还原CO₂与Zn-CO₂电池[J]. 催化学报, 2023, 48(5): 185-194.
[9]	李静静, 张锋伟, 詹新雨, 郭河芳, 张涵, 昝文艳, 孙振宇, 张献明. 酞菁镍分子结构的精确设计: 优化电子和空间效应用于CO₂电还原[J]. 催化学报, 2023, 48(5): 117-126.
[10]	杨焕焕, 李诗颖, 许群. 铜基催化剂电催化高效还原CO₂制备C₂₊产物的调控策略[J]. 催化学报, 2023, 48(5): 32-65.
[11]	危长城, 张雯娜, 杨阔, 柏秀, 徐舒涛, 李金哲, 刘中民. CO₂作为化学品原料的高效利用途径: 与烷烃耦合反应[J]. 催化学报, 2023, 47(4): 138-149.
[12]	詹麒尼, 帅婷玉, 徐慧民, 黄陈金, 张志杰, 李高仁. 单原子催化剂的合成及其在电化学能量转换中的应用[J]. 催化学报, 2023, 47(4): 32-66.
[13]	沙峰, 唐珊, 汤驰洲, 冯振东, 王集杰, 李灿. ZnZrO_x固溶体催化剂表面羟基在CO₂加氢制甲醇中的作用[J]. 催化学报, 2023, 45(2): 162-173.
[14]	孔艳, 蒋兴星, 李轩, 孙建桔, 胡琪, 柴晓燕, 杨恒攀, 何传新. 超高质量活性的碳纳米纤维包覆铋纳米颗粒用于高效二氧化碳电还原制甲酸[J]. 催化学报, 2023, 45(2): 95-106.
[15]	卞磊, 张紫阳, 田昊, 田娜娜, 马智, 王中利. 具有丰富晶界的铜催化剂在气-液平衡扩散电极上高效电还原CO₂制C₂H₄[J]. 催化学报, 2023, 54(11): 199-211.