ZrO2, MgO, CaO, ZnO, Al2O3, TiO2 and Ag fibers (fabrics) were prepared by templating techniques. Some of these inorganic fibers have a higher surface area which is dominated with mesopore structure. Surface area and pore size of these inorganic fibers - PowerPoint PPT Presentation

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ZrO2, MgO, CaO, ZnO, Al2O3, TiO2 and Ag fibers (fabrics) were prepared by templating techniques. Some of these inorganic fibers have a higher surface area which is dominated with mesopore structure. Surface area and pore size of these inorganic fibers

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ZrO2, MgO, CaO, ZnO, Al2O3, TiO2 and Ag fibers (fabrics) were prepared by templating techniques. ... that The morphology of ZrO2 fabric is the same as that of ... – PowerPoint PPT presentation

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Title: ZrO2, MgO, CaO, ZnO, Al2O3, TiO2 and Ag fibers (fabrics) were prepared by templating techniques. Some of these inorganic fibers have a higher surface area which is dominated with mesopore structure. Surface area and pore size of these inorganic fibers


1
Activated Inorganic Fibers Templated from
Activated Carbon Fiber
James Economy, University of Illinois at
Urbana-Champaign, DMR- 00-71839
ZrO2, MgO, CaO, ZnO, Al2O3, TiO2 and Ag fibers
(fabrics) were prepared by templating techniques.
Some of these inorganic fibers have a higher
surface area which is dominated with mesopore
structure. Surface area and pore size of these
inorganic fibers can be changed by using
different templating conditions. Key Features A
unique catalytic material and adsorption
materials, higher thermal oxidative stability.
A cartoon shows the conversation from porous
carbon fiber to activated inorganic fibers
SEM photographs show that The morphology of ZrO2
fabric is the same as that of its ACF template
2
Surface Chemistry of Poly(vinyl alcohol) Coated
Fiberglass Activated with H3PO4
James Economy, University of Illinois at
Urbana-Champaign, DMR- 00 -71839
Properties of PVA coated fiberglass activated
with H3PO4
H3PO4activated poly(vinyl alcohol) coated
fiberglass mats (PAPCF) were prepared in air at
temperatures below 400oC. The pore structure and
surface chemistry of PAPCF were characterized by
using N2 adsorption at 77 K, XPS, FTIR, TGA, NaOH
uptake and Ag adsorption. PAPCF at 300oC yields
a high BET surface area (up to 1745 m2/g of
coating) with a structure mainly composed of
micropores. Some phosphorus species and
oxygen-containing functional groups are
incorporated into the PVA-based coating, with
higher activation temperatures increasing the
formation of these groups. Post-treatment with
sulfuric acid obviously decreases the content of
phosphorous species, but increases
oxygen-containing groups in the coating. NaOH
uptake and Ag adsorption show substantial
cationic exchange capacity onto PAPCF and acid
treated PAPCF. Furthermore, PAPCF activated at
300oC can be regenerated at least 5 times with no
change in ion exchange capacity
NaOH uptake and Ag adsorption on PVA-coated
fiberglass activated with H3PO4 in air at 300oC
prior to and after the treatment in concentrated
H2SO4
Coating
Fiberglass
A treated with NaOH B treated with H2SO4 at
150oC
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