二次纳米自组装大孔氧化铝贯穿孔道的NSA形成机理

引用本文: 王爽, 丁巍, 王鼎聪, 赵德智. 二次纳米自组装大孔氧化铝贯穿孔道的NSA形成机理[J]. 无机化学学报, 2015, 31(8): 1539-1547. doi: 10.11862/CJIC.2015.214 shu

Citation: WANG Shuang, DING Wei, WANG Ding-Cong, ZHAO De-Zhi. Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore[J]. Chinese Journal of Inorganic Chemistry, 2015, 31(8): 1539-1547. doi: 10.11862/CJIC.2015.214 shu

二次纳米自组装大孔氧化铝贯穿孔道的NSA形成机理

王爽 ^1, ,
丁巍 ^{1,3,
,} ,
王鼎聪 ^2, ,
赵德智 ^1,

1.
1. 辽宁石油化工大学化学化工与环境学部, 抚顺 113001;
2.
2. 中国石化抚顺石油化工研究院, 抚顺 113001;
3.
3. 中国石油大学(北京)重质油国家重点实验室, 北京 102249

通讯作者: 丁巍,E-mail:cicy1125@163.com

基金项目:
中国石油化工集团(总合-JQ1416)资助项目 (总合-JQ1416)

中国海洋石油总公司资助项目(No.20140331)。 (No.20140331)

摘要: 采用纳米自组装法合成的大孔氧化铝催化材料FA-06,具有1.39 mL·g^-1的孔容、297 m²·g^-1的比表面积、32.4 nm的最可几孔径和81.85%的孔隙率,孔道集中分布于10~30 nm和30~60 nm的比例分别占35.61%和40.88%。GPC结果表明,对于形成反相超增溶胶束的高聚物RHP,可通过改变聚异丁烯马来酸酐(PIBSA)的量来控制其分散度和相对分子量,进而控制大孔氧化铝的孔道结构。TEM及SEM结果表明,纳米自组装氢氧化铝棒长600~800 nm,直径为250~300 nm,经550.0℃焙烧后,形成直径为150~300 nm,长度为400~600 nm的纳米氧化铝棒。从焙烧后的纳米自组装氢氧化铝的XRD结果证明了3种γ-Al₂O₃的前躯体完全转化为γ-Al₂O₃。结合TG的结果,表明在605.0℃时,拟薄水铝石完全转化为γ-Al₂O₃,总失重可达61.88%。基于以上实验结果,模拟了反向超增溶胶束、氢氧化铝及大孔氧化铝的分子自组装和纳米自组装的形成过程,并提出了纳米自组装大孔氧化铝贯穿孔道的NSA(Nano Self-Assembly)形成机理。

关键词:

高分子;模板剂;贯穿孔道;扩散;渣油

English

Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore

1.
1. College of Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, Liaoning 113001, China;
2.
2. Fushun Research Institute of Petroleum and Petrochemicals, Fushun, Liaoning 113001, China;
3.
3. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijng 102249, China

Corresponding author: 丁巍,E-mail:cicy1125@163.com

Received Date: 14 February 2015
Fund Project:
中国石油化工集团(总合-JQ1416)资助项目

中国海洋石油总公司资助项目(No.20140331)。

Abstract: The macropore alumina catalysis material FA-06 was prepared by nano self-assembly technique which has a pore volume of 1.39 cm³·g^-1, a specific surface area of 297 m²·g^-1, most probable pore size of 32.4 nm and a porosity of 81.85%. High concentration pore size distribution of 10~30 nm and 30~60 nm which percentages are 35.61% and 40.88%, respectively. GPC showed that the dispersion and relative molecular weight of RHP are controlled by the amount of PIBSA, which is the formation material of RHP, in order to control the pore sizes. From TEM and SEM, the results showed that the diameters of nano aluminum hydroxide rods are 250~300 nm, and the lengths are 600~800 nm. After calcinating at 550.0℃, the nano alumina rods had the diameter of 150~300 nm, the length of 400~600 nm. XRD results of burned nano self-assembly aluminum hydroxide showed that γ-Al₂O₃ be formed completely from three types of precursor of nano self-assembly aluminum hydroxide by burning process. Combining with data of TG, the γ-Al₂O₃ is formed completely due to the decomposition of pseudoboehmite at temperature of 605.0℃, and the total weight loss reaches 61.88%. Based on the above experimental results, the molecular self-assembly and nano self-assembly formation process of reverse supersoluble micelle, aluminum hydroxide and macropore alumina were simulated. Moreover, the formation mechanism of NSA of nano self-assembly macropore alumina with penetrable pores was presented.

Key words:

macromolecule;template;penetrate pore;diffusion;residue

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

二次纳米自组装大孔氧化铝贯穿孔道的NSA形成机理

通讯作者: 丁巍,E-mail:cicy1125@163.com

English

Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore

Corresponding author: 丁巍,E-mail:cicy1125@163.com

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

二次纳米自组装大孔氧化铝贯穿孔道的NSA形成机理

通讯作者: 丁巍,E-mail:cicy1125@163.com

English

Formation Mechanism of NSA of Secondly Nano Self-Assembly Macropore Alumina Penetrable Pore

Corresponding author: 丁巍,E-mail:cicy1125@163.com

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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