scholarly journals Mesocellular polymer foams with unprecedented uniform large mesopores and high surface areasElectronic supplementary information (ESI) available: isotherms and corresponding pore size distribution of the MCF silica template and poly(DVB)/MCF silica composite, IR spectrum of mesocellular polymer foam, and TEM image of the MCF silica template. See http://www.rsc.org/suppdata/cc/b3/b310713b/

2004 ◽  
pp. 562 ◽  
Author(s):  
Jinwoo Lee ◽  
Jaeyun Kim ◽  
Sang-Wook Kim ◽  
Chae-Ho Shin ◽  
Taeghwan Hyeon
Keyword(s):  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Ir Spectrum ◽  
High Surface ◽  
Supplementary Information ◽  
Polymer Foams ◽  
Polymer Foam ◽  
Large Mesopores ◽  
Silica Template

scholarly journals Coal Fly Ash Derived Silica Nanomaterial for MMMs—Application in CO2/CH4 Separation

Membranes ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 78
Author(s):  
Marius Gheorghe Miricioiu ◽  
Violeta-Carolina Niculescu ◽  
Constantin Filote ◽  
Maria Simona Raboaca ◽  
Gheorghe Nechifor
Keyword(s):  
Fly Ash ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Coal Fly Ash ◽  
High Surface ◽  
Industrial Applications ◽  
Mixed Matrix Membranes ◽  
Co2 Removal ◽  
Mcm 41

In order to obtained high selective membrane for industrial applications (such as natural gas purification), mixed matrix membranes (MMMs) were developed based on polysulfone as matrix and MCM-41-type silica material (obtained from coal fly ash) as filler. As a consequence, various quantities of filler were used to determine the membranes efficiency on CO2/CH4 separation. The coal fly ash derived silica nanomaterial and the membranes were characterized in terms of thermal stability, homogeneity, and pore size distribution. There were observed similar properties of the obtained nanomaterial with a typical MCM-41 (obtained from commercial silicates), such as high surface area and pore size distribution. The permeability tests highlighted that the synthesized membranes can be applicable for CO2 removal from CH4, due to unnoticeable differences between real and ideal selectivity. Additionally, the membranes showed high resistance to CO2 plasticization, due to permeability decrease even at high feed pressure, up to 16 bar.

Organogel Assisted Porous Organic Polymer Embedding Cu Nanoparticles for Selectivity Control Semi Hydrogenation of Alkynes

Nanoscale ◽  
2022 ◽  
Author(s):  
John Mondal ◽  
Ratul Paul ◽  
Subhash Chandra Shit ◽  
Arunima Singh ◽  
Roong Jien Wong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
High Surface ◽  
High Surface Area ◽  
Organic Polymer ◽  
Cu Nanoparticles ◽  
Significant Research ◽  
Selectivity Control

Heteroatom-rich porous-organic-polymers (POPs) comprising of highly cross-linked robust skeletons with high physical and thermal stability, high surface area, and tunable pore size distribution have garnered significant research interests for their...

Pore Size Distribution in Foams

2011 ◽  
Vol 465 ◽  
pp. 145-148 ◽  
Author(s):  
Tomáš Matoušek ◽  
Petr Ponížil ◽  
Marek Galetka
Keyword(s):  
Physical Properties ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Computer Tomography ◽  
Point Of View ◽  
Polymer Foams

Physical properties of polymer foams depend on their macrostructure. In this paper, we study a range of polyuretane foams from the stereological point of view. Images of plane surfaces of studied samples were created by printing them on a sheet of paper and scanning these imprints. Consequent operations included reconstruction of pore section areas in the plane of printing and computation of pore volumes. The distribution of pore section was compared with data from computer tomography (CT) in order compare both methods.

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