Control of the pore wall thickness and thermal stability in low-cost bimodal porous silicas

Polyhedron ◽  
2019 ◽  
Vol 170 ◽  
pp. 544-552 ◽  
Author(s):  
José Manuel Morales ◽  
Jamal El Haskouri ◽  
Carmen Guillem ◽  
Rahma Hany ◽  
José Vicente Ros-Lis ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Wall Thickness ◽  
Low Cost ◽  
Pore Wall ◽  
Pore Wall Thickness

Valorization of cellulose-doped lignin: application of cellulose-doped lignin-derived activated carbon in capacitors and investigation of its textural properties and electrochemical performance

2021 ◽  
Author(s):  
Liangcai Wang ◽  
Xin Feng ◽  
Huanhuan Ma ◽  
Jielong Wu ◽  
Yu Chen ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Specific Capacitance ◽  
Surface Area ◽  
Specific Surface Area ◽  
Wall Thickness ◽  
Textural Properties ◽  
Pore Wall ◽  
Surface Areas ◽  
Pore Wall Thickness

Abstract This work provides an idea for efficient and harmless utilization of lignin and further evaluated the textural properties of lignin-derived activated carbon/specific capacitance relationship. The yield of cellulose-doped apricot shell lignin (ASLC) was 30.42%. H3PO4/KOH was used to assist the preparation of ASLC-derived activated carbon (AAC) for capacitors. The specific surface areas of the as-obtained AAC-P-3 and AAC-K-2 were 1475.16 m2/g and 2136.56 m2/g, respectively. The specific capacitances of AAC-P-3 and AAC-K-2 were 169.14 F/g and 236.00 F/g, respectively, upon the current density of 0.50 A/g. In capacitors containing aqueous KOH as the electrolyte, the AR2 (0.983) between specific surface area and specific capacitance was highest, followed by the AR2 (0.978) between Vmicro/Vmeso and specific capacitance, the AR2 (0.975) between pore-wall thickness and specific capacitance. Consequently, the specific capacitances of the AACs depend not only the specific surface area, but also on the Vmicro/Vmeso, pore-wall thickness, and Vmicro.

Fast temperature-responsive nanocomposite PNIPAM hydrogels with controlled pore wall thickness: Force and rate of T-response

2012 ◽  
Vol 48 (12) ◽  
pp. 1997-2007 ◽  
Author(s):  
Katarzyna Depa ◽  
Adam Strachota ◽  
Miroslav Šlouf ◽  
Jiřina Hromádková
Keyword(s):  
Wall Thickness ◽  
Pore Wall ◽  
Temperature Responsive ◽  
Pore Wall Thickness

The Hydraulic Manifold Block Pore Checking CAD Explore

2013 ◽  
Vol 749 ◽  
pp. 540-545
Author(s):  
Jing Hang Zhang
Keyword(s):  
Wall Thickness ◽  
Relative Position ◽  
Pore Wall ◽  
Conical Surface ◽  
Actual Contour ◽  
Flow Quality ◽  
Pore Flow ◽  
Cylindrical Duct ◽  
Pore Wall Thickness

This paper presents hydraulic manifold block in the check of different surface channel relative position relations, according to the manifold pores the characteristics, the same face pores, the pro face pores, the opposite faces pores is divided into the holes in three forms, analysis of the cylindrical duct end taper hole data on pore flow quality influence. The cylindrical and conical surface of actual contour curve projection and intersection check channel on-off relationship; focus on the analysis of the pore wall thickness, pore flow quality.

Pore wall thickness and interpore influence on adsorption of alkanes in carbons using explicit pore models

Adsorption ◽  
2012 ◽  
Vol 18 (2) ◽  
pp. 113-119 ◽  
Author(s):  
Sebastião M. P. Lucena ◽  
Daniel V. Gonçalves ◽  
Paulo G. M. Mileo ◽  
Célio L. Cavalcante
Keyword(s):  
Wall Thickness ◽  
Pore Wall ◽  
Pore Wall Thickness

Synthesis and Characterizations of MCM-41 Silica with Thick Pore Wall

2011 ◽  
Vol 233-235 ◽  
pp. 2034-2037
Author(s):  
Qiong Wei Hou ◽  
En Hui Yuan ◽  
Jin Gang Jiang ◽  
Kun Zhang
Keyword(s):  
High Temperature ◽  
Mesoporous Silica ◽  
Wall Thickness ◽  
Pore Wall ◽  
Crystallization Time ◽  
Pore Channel ◽  
Desorption Branch ◽  
Cetyltrimethylammonium Tosylate ◽  
Pore Wall Thickness ◽  
Mcm 41

Nano-structured mesoporous silica with highly ordered 2D hexagonal topology has been synthesized using novel surfactant cetyltrimethylammonium tosylate (CTATos) as template via directly hydrothermal treatment at high temperature of 175 °C and varied crystallization time. The maximum pore wall thickness is up to 2.2 nm calculated by BdB method from desorption branch. The enlargement of pore wall thickness and unit-lattice of currently synthesized MCM-41 silica is attributed to the migration and subsequent deposition of the silicate species in the inner pore channel.

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