Silica-alumina gel humidity control beads with bimodal pore structure produced by phase separation during the sol–gel process

2016 ◽  
Vol 222 ◽  
pp. 138-144 ◽  
Author(s):  
Daoyan Feng ◽  
Zhen Lin ◽  
Miaomiao Liu ◽  
Jun Xie ◽  
Junmin Wan ◽  
...  
Keyword(s):  
Phase Separation ◽  
Pore Structure ◽  
Sol Gel ◽  
Humidity Control ◽  
Sol Gel Process ◽  
Alumina Gel ◽  
Silica Alumina ◽  
Bimodal Pore Structure

Silica–Alumina Catalyst with Bimodal Pore Structure Prepared by Phase Separation in Sol–Gel Process

2001 ◽  
Vol 200 (1) ◽  
pp. 197-202 ◽  
Author(s):  
Ryoji Takahashi ◽  
Satoshi Sato ◽  
Toshiaki Sodesawa ◽  
Miyuki Yabuki
Keyword(s):  
Phase Separation ◽  
Pore Structure ◽  
Sol Gel ◽  
Alumina Catalyst ◽  
Sol Gel Process ◽  
Silica Alumina ◽  
Bimodal Pore Structure

Ni/SiO2 catalyst with hierarchical pore structure prepared by phase separation in sol–gel process

2000 ◽  
Vol 2 (21) ◽  
pp. 4983-4990 ◽  
Author(s):  
Norifumi Nakamura ◽  
Ryoji Takahashi ◽  
Satoshi Sato ◽  
Toshiaki Sodesawa ◽  
Satoshi Yoshida
Keyword(s):  
Phase Separation ◽  
Pore Structure ◽  
Sol Gel ◽  
Hierarchical Pore Structure ◽  
Sol Gel Process ◽  
Hierarchical Pore

Preparation of Macroprous C12A7 Mayenite Monoliths via a Sol-Gel Process with Nitrates as Precursors

2018 ◽  
Vol 768 ◽  
pp. 211-217 ◽  
Author(s):  
Rui Wang ◽  
Yu Kun Sun ◽  
Bao Jia Qi Jiang ◽  
Hui Yang ◽  
Xing Zhong Guo
Keyword(s):  
Heat Treatment ◽  
Phase Separation ◽  
Binary System ◽  
Propylene Oxide ◽  
Crystalline Phase ◽  
Sol Gel ◽  
Single Crystalline ◽  
Sol Gel Process

Macroporous Ca12Al14O33(C12A7) mayenite monoliths have been successfully prepared via a sol-gel process in the presence of propylene oxide (PO) and poly (ethyleneoxide) (PEO). Gelation of CaO-Al2O3binary system with nitrates salts as additional precursors is accelerated by PO as an acid scavenger, while PEO works as a phase separation inducer to mediate the phase separation of the system. Appropriate PO and PEO amounts allow the formation of monolithic xerogel with interconnected macropores and co-continuous skeletons. The resultant dried gels are amorphous and the single crystalline phase Ca12Al14O33mayenite forms after heat-treatment at 1100 °C in air, while the macrostructure is preserved with a porosity as high as 78% and smoother and denser skeletons.

Iron(iii) oxyhydroxide and oxide monoliths with controlled multiscale porosity: synthesis and their adsorption performance

2018 ◽  
Vol 6 (19) ◽  
pp. 9041-9048 ◽  
Author(s):  
Yosuke Hara ◽  
Kazuyoshi Kanamori ◽  
Kei Morisato ◽  
Riichi Miyamoto ◽  
Kazuki Nakanishi
Keyword(s):  
Phase Separation ◽  
Sol Gel ◽  
Adsorption Performance ◽  
Sol Gel Process

Iron(iii) oxyhydroxide and oxide monoliths with controlled multiscale porosity have been successfully fabricated via the sol–gel process accompanied by phase separation.

Synthesis of hierarchically porous MnO/C composites via a sol–gel process followed by two-step combustion for lithium-ion batteries

2020 ◽  
Vol 44 (28) ◽  
pp. 12307-12316
Author(s):  
Wei Liu ◽  
Daoyan Feng ◽  
Hui Yang ◽  
Xingzhong Guo
Keyword(s):  
Phase Separation ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Hierarchically Porous ◽  
Sol Gel Process

Hierarchically porous MnO/C composites with interconnected macropores and co-continuous skeletons were fabricated via a sol–gel process combined with phase separation, followed by a two-step combustion.

Novel approach of silica-PVA hybrid aerogel synthesis by simultaneous sol-gel process and phase separation

2020 ◽  
Vol 166 ◽  
pp. 104997
Author(s):  
Bartosz Babiarczuk ◽  
Daniel Lewandowski ◽  
Anna Szczurek ◽  
Krzysztof Kierzek ◽  
Matthias Meffert ◽  
...  
Keyword(s):  
Phase Separation ◽  
Sol Gel ◽  
Novel Approach ◽  
Sol Gel Process ◽  
Hybrid Aerogel
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