نتایج جستجو برای: meso porous

تعداد نتایج: 56589  

2012
Danish J. Malik Andrzej W. Trochimczuk Sylwia Ronka

Novel carbon materials have been prepared by the carbonization of acrylonitrile (AN)/divinylbenzene (DVB) suspension porous copolymers having nominal crosslinking degrees in the range of 30-70% and obtained in the presence of various amounts of porogens. The carbons were obtained by pre-oxidation of AN/DVB copolymers at 250-350°C in air followed by pyrolysis at 850°C in an N(2) atmosphere. Both...

Journal: :Nanoscale 2015
Sung Mi Jung Daniela Lopes Mafra Cheng-Te Lin Hyun Young Jung Jing Kong

The design and optimization of 3D graphene nanostructures are critically important since the properties of electrochemical energy storages such as supercapacitors can be dramatically enhanced by tunable porous channels. In this work, we have developed porous graphene aerogels from graphene suspensions obtained via electrochemical exfoliation and explored their application as supercapacitor elec...

Journal: :journal of chemical and petroleum engineering 2014
nastaran hazrati ali mohammadalizadeh seyed hamed mousavi fatemeh babaie

in this study, bimodal meso-porous silica (uvm-7) synthesized and fabricated amino silane modified supports were characterized by powder x-ray diffraction (xrd), n2 adsorption/desorption, transmission electron microscope (tem), elemental analysis and titration. capacity of co2 capture on modified bimodal pore structure silica at 70°c was calculated using breakthrough curves; and it was found th...

Journal: :Chemical communications 2007
Beata Koszarna Daniel T Gryko

The cascade reaction of sterically hindered dipyrromethanes and formaldehyde furnished meso(10)-meso(10') linked corroles--a new type of porphyrinoid--compounds with interesting photophysical properties.

Journal: :Materials & Design 2021

Constructing a hierarchical structure with tunable pore size is practical method to improve the capacity of photocatalytic hydrogen production catalysts. In this work, titanium dioxide/graphitic carbon nitride (TiO2/g-C3N4) nanofibers meso/macro-porous are fabricated by combining one-step electrospinning and calcination process, in which developed introducing polyvinylpyrrolidone liquid paraffi...

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