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1. WO2020228400 - METHOD FOR PREPARING TWO-DIMENSIONAL ORDERED MESOPOROUS NANOSHEET BY INORGANIC SALT INTERFACE-INDUCED ASSEMBLY

Publication Number WO/2020/228400
Publication Date 19.11.2020
International Application No. PCT/CN2020/078361
International Filing Date 09.03.2020
IPC
C01B 32/15 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
C01G 23/053 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
23Compounds of titanium
04Oxides; Hydroxides
047Titanium dioxide
053Producing by wet processes, e.g. hydrolysing titanium salts
B82Y 40/00 2011.01
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
C01B 33/12 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
113Silicon oxides; Hydrates thereof
12Silica; Hydrates thereof, e.g. lepidoic silicic acid
C01F 7/30 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS
7Compounds of aluminium
02Aluminium oxide; Aluminium hydroxide; Aluminates
30Preparation of aluminium oxide or hydroxide by thermal decomposition of aluminium compounds
C01G 25/02 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
25Compounds of zirconium
02Oxides
CPC
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
C01B 32/15
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
C01B 33/12
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
113Silicon oxides; Hydrates thereof
12Silica; Hydrates thereof, e.g. lepidoic silicic acid
C01F 17/0043
C01F 7/30
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
7Compounds of aluminium
02Aluminium oxide; Aluminium hydroxide; Aluminates
30Preparation of aluminium oxide or hydroxide by thermal decomposition ; or by hydrolysis or oxidation; of aluminium compounds
C01G 23/053
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
23Compounds of titanium
04Oxides; Hydroxides
047Titanium dioxide
053Producing by wet processes, e.g. hydrolysing titanium salts
Applicants
  • 复旦大学 FUDAN UNIVERSITY [CN]/[CN]
Inventors
  • 邓勇辉 DENG, Yonghui
  • 柳亮亮 LIU, Liangliang
  • 邹义冬 ZOU, Yidong
  • 杨玄宇 YANG, Xuanyu
Agents
  • 上海市汇业律师事务所 SHANGHAI HUIYE LAW FIRM
Priority Data
201910391031.711.05.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR PREPARING TWO-DIMENSIONAL ORDERED MESOPOROUS NANOSHEET BY INORGANIC SALT INTERFACE-INDUCED ASSEMBLY
(FR) MÉTHODE DE PRÉPARATION DE NANOFEUILLE MÉSOPOREUSE ORDONNÉE EN DEUX DIMENSIONS PAR ASSEMBLAGE INDUIT PAR UNE INTERFACE DE SEL INORGANIQUE
(ZH) 无机盐界面诱导组装制备二维有序介孔纳米片的方法
Abstract
(EN)
The present invention belongs to the technical field of nanoporous materials, and specifically relates to a method for preparing a two-dimensional ordered mesoporous nanosheet by inorganic salt interface-induced assembly. The method of the present invention comprises: using a soluble inorganic salt as a substrate and an amphiphilic block copolymer as a templating agent, and employing vacuum suction filtration or low-speed centrifugation to achieve the uniform diffusion and transfer of a target precursor solution on an inorganic salt crystal interface; using a solvent volatization-induced co-assembly technique to form a highly ordered single-layer mesoporous structure; and promoting the volatilization of the organic solvent and the induction of the formation thereof by means of a gradient temperature-controlled Oswald ripening process, and removing the templating agent under the protection of N2 to obtain a highly ordered single-layer two-dimensional mesoporous nanosheet material. The assembled nanosheet material has a large pore diameter, regular spherical pores and an orderly arrangement; by means of changing the type of the precursor, a variety of mesoporous metal oxides, metal simple substances and inorganic non-metallic nanosheets may be synthesized. The method of the present invention is simple and the raw materials are easily obtained; the method has universal applicability to nano materials, and is suitable for up-scaled production.
(FR)
La présente invention relève du domaine technique des matériaux nanoporeux, et concerne en particulier une méthode de préparation d'une nanofeuille mésoporeuse ordonnée en deux dimensions par un assemblage induit par une interface de sel inorganique. La méthode de la présente invention comprend : l'utilisation d'un sel inorganique soluble en tant que substrat et d'un copolymère bloc amphiphile en tant qu'agent structurant, et l'utilisation d'une filtration par aspiration sous vide ou d'une centrifugation à faible vitesse pour obtenir la diffusion et le transfert uniformes d'une solution de précurseur cible sur une interface de cristaux de sel inorganique ; l'utilisation d'une technique de co-assemblage induit par volatilisation de solvant pour former une structure mésoporeuse monocouche hautement ordonnée ; et la favorisation de la volatilisation du solvant organique et l'induction de sa formation au moyen d'un processus de maturation d'Oswald régulé par gradient de température, et l'élimination de l'agent structurant sous la protection de N2 pour obtenir un matériau de nanofeuille mésoporeuse bidimensionnelle monocouche hautement ordonnée. Le matériau de nanofeuille assemblé a un grand diamètre de pore, des pores sphériques réguliers et un agencement ordonné ; au moyen de la modification du type du précurseur, une variété d'oxydes métalliques mésoporeux, de substances simples métalliques et de nanofeuilles non métalliques inorganiques peuvent être synthétisés. La méthode de la présente invention est simple et les matières premières sont facilement obtenues ; la méthode a une applicabilité universelle à des nanomatériaux, et est appropriée pour une production à grande échelle.
(ZH)
本发明属于纳米多孔材料技术领域,具体为一种无机盐界面诱导组装制备二维有序介孔纳米片的方法。本发明以可溶性无机盐为基底、两亲性嵌段共聚物为模板剂,采用真空抽滤或低速离心实现目标前驱体溶液在无机盐晶体界面均匀扩散与传递;利用溶剂挥发诱导共组装技术形成高度有序的单层介孔结构;通过梯度控温奥斯瓦熟化促使有机溶剂挥发并诱导成型,在N 2保护下去除模板剂,得到高度有序的单层二维介孔纳米片材料。所组装的纳米片材料具有较大孔径、规则的球形孔道且有序排列;通过改变前驱体的类型可合成多种介孔金属氧化物、金属单质、无机非金属纳米片。本发明方法简单,原料易得,对纳米材料具有普适性,适于放大生产。
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