A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of three-dimensional ordered porous SiC/C with double-layer pore wall structure
The invention discloses a preparation method of three-dimensional ordered porous SiC/C with a double-layer pore wall structure. The preparation method comprises the following steps: depositing SiO2 nanospheres with uniform diameters in a solvent to form a template; pouring a polymethylsilane dispersion liquid into the template for dipping; performing thermal crosslinking in an inert atmosphere; ceramic heat treatment; dipping in hydrofluoric acid; and carrying out heat treatment in an active atmosphere to obtain the three-dimensional ordered porous SiC/C with a double-layer pore wall structure. Compared with the prior art, the three-dimensional ordered porous material is prepared by combining a precursor conversion technology, a template technology and an in-situ generation technology of the microporous carbon layer for the first time; the three-dimensional ordered porous SiC/C ceramic with a double-layer pore wall structure is prepared for the first time; the material has a microporous and three-dimensional ordered macroporous structure and has the advantages of high pore wall strength, high hardness, good high temperature resistance, large specific surface area and the like, and the preparation method is simple in process, convenient to implement and suitable for batch preparation.
具有双层孔壁结构的三维有序多孔SiC/C的制备方法，包括以下步骤：将直径均一的SiO2纳米球在溶剂中沉积成为模板；将聚甲基硅烷分散液倒入所述模板浸渍；在惰性气氛中热交联；陶瓷化热处理；在氢氟酸中浸渍；在活性气氛下热处理，即得到具有双层孔壁结构的三维有序多孔SiC/C。与现有技术相比，本发明首次将先驱体转化技术、模板技术以及微孔碳层的原位生成技术相结合制备三维有序多孔材料；首次制备出具有双层孔壁结构的三维有序多孔SiC/C陶瓷；该材料具有微孔和三维有序大孔结构，具有孔壁强度高，硬度大、耐高温性好、比表面积大等优点，并且制备方法工艺简单、实施方便、适于批量制备。
Preparation method of three-dimensional ordered porous SiC/C with double-layer pore wall structure
The invention discloses a preparation method of three-dimensional ordered porous SiC/C with a double-layer pore wall structure. The preparation method comprises the following steps: depositing SiO2 nanospheres with uniform diameters in a solvent to form a template; pouring a polymethylsilane dispersion liquid into the template for dipping; performing thermal crosslinking in an inert atmosphere; ceramic heat treatment; dipping in hydrofluoric acid; and carrying out heat treatment in an active atmosphere to obtain the three-dimensional ordered porous SiC/C with a double-layer pore wall structure. Compared with the prior art, the three-dimensional ordered porous material is prepared by combining a precursor conversion technology, a template technology and an in-situ generation technology of the microporous carbon layer for the first time; the three-dimensional ordered porous SiC/C ceramic with a double-layer pore wall structure is prepared for the first time; the material has a microporous and three-dimensional ordered macroporous structure and has the advantages of high pore wall strength, high hardness, good high temperature resistance, large specific surface area and the like, and the preparation method is simple in process, convenient to implement and suitable for batch preparation.
具有双层孔壁结构的三维有序多孔SiC/C的制备方法，包括以下步骤：将直径均一的SiO2纳米球在溶剂中沉积成为模板；将聚甲基硅烷分散液倒入所述模板浸渍；在惰性气氛中热交联；陶瓷化热处理；在氢氟酸中浸渍；在活性气氛下热处理，即得到具有双层孔壁结构的三维有序多孔SiC/C。与现有技术相比，本发明首次将先驱体转化技术、模板技术以及微孔碳层的原位生成技术相结合制备三维有序多孔材料；首次制备出具有双层孔壁结构的三维有序多孔SiC/C陶瓷；该材料具有微孔和三维有序大孔结构，具有孔壁强度高，硬度大、耐高温性好、比表面积大等优点，并且制备方法工艺简单、实施方便、适于批量制备。
Preparation method of three-dimensional ordered porous SiC/C with double-layer pore wall structure
具有双层孔壁结构的三维有序多孔SiC/C的制备方法
WANG HAO (author) / MA ZHONGLIE (author) / MA SHENG (author) / CHEN SONG (author) / CHENG HONGMEI (author)
2024-11-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2024
POROUS CERAMIC HAVING DOUBLE LAYER PORE STRUCTURE AND METHOD OF MANUFACTURING THE SAME
| European Patent Office | 2016
POROUS CERAMIC HAVING DOUBLE LAYER PORE STRUCTURE AND METHOD OF MANUFACTURING THE SAME
| European Patent Office | 2016
| European Patent Office | 2022