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Title:
METHOD FOR PREPARING TWO-DIMENSIONAL ORDERED MESOPOROUS NANOSHEET BY INORGANIC SALT INTERFACE-INDUCED ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2020/228400
Kind Code:
A1
Abstract:
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.

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Inventors:
DENG YONGHUI (CN)
LIU LIANGLIANG (CN)
ZOU YIDONG (CN)
YANG XUANYU (CN)
Application Number:
PCT/CN2020/078361
Publication Date:
November 19, 2020
Filing Date:
March 09, 2020
Export Citation:
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Assignee:
UNIV FUDAN (CN)
International Classes:
C01B32/15; B82Y40/00; C01B33/12; C01F7/30; C01F7/304; C01F17/00; C01G23/053; C01G25/00; C01G25/02
Foreign References:
CN110127661A2019-08-16
CN105129856A2015-12-09
CN104538595A2015-04-22
CN105523538A2016-04-27
CN101823706A2010-09-08
Other References:
LIANGLIANG LIU ET AL.: "A Universal Lab-on-Salt-Particle Approach to 2D Single-Layer Ordered Mesoporous Materials", ADV. MATER., vol. 32, no. 10, 29 January 2020 (2020-01-29), XP055752993, ISSN: 1521-4095
Attorney, Agent or Firm:
SHANGHAI HUIYE LAW FIRM (CN)
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