Intercalation of poly(ethylene oxide) in vanadium pentoxide (V2O5) xerogel

1991 ◽  
Vol 3 (6) ◽  
pp. 992-994 ◽  
Author(s):  
Y. J. Liu ◽  
D. C. DeGroot ◽  
J. L. Schindler ◽  
C. R. Kannewurf ◽  
M. G. Kanatzidis
Keyword(s):  
Ethylene Oxide ◽  
Vanadium Pentoxide ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
V2o5 Xerogel

Effect of modification by poly(ethylene oxide) on the reversibility of insertion/extraction of Li+ ion in V2O5 xerogel films

2002 ◽  
Vol 12 (6) ◽  
pp. 1926-1929 ◽  
Author(s):  
Wen Chen ◽  
Qing Xu ◽  
Yong Sheng Hu ◽  
Li Qiang Mai ◽  
Quan Yao Zhu
Keyword(s):  
Ethylene Oxide ◽  
Poly Ethylene Oxide ◽  
Li Ion ◽  
Poly Ethylene ◽  
V2o5 Xerogel ◽  
Xerogel Films

Electrical and Electrochromic Characterization of Poly(ethylene Oxide)/Molybdenum Doped Vanadium Pentoxide Films

2013 ◽  
Vol 785-786 ◽  
pp. 771-774
Author(s):  
Ai Ping Jin ◽  
Wen Chen ◽  
Quan Yao Zhu
Keyword(s):  
Ethylene Oxide ◽  
Vanadium Pentoxide ◽  
Hydrothermal Reaction ◽  
Sol Gel ◽  
Nanocomposite Films ◽  
Ex Situ ◽  
Transmission Spectra ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

The hybrid guest-host nanocomposite films based on poly (ethylene oxide) (PEO) and molybdenum doped vanadium pentoxide (V0.975Mo0.025)2O5nH2O were prepared by sol-gel and hydrothermal reaction via a two-part process. The electrical properties along and across V-O layers have been evaluated. The results indicate that the proper amount of PEO can increase the electrical conductivity of the films. The electrochromism of the films were investigated by cyclic voltammetry, the ex-situ transmission spectra and photographs. The films display a reversible multichromism (orangegreenbluebrown) upon Li+ion insertion/extraction.

Electrical and electrochemical characterization of poly (ethylene oxide)/V2O5 xerogel electrochromic films

2008 ◽  
Vol 179 (21-26) ◽  
pp. 1256-1262 ◽  
Author(s):  
Aiping Jin ◽  
Wen Chen ◽  
Quanyao Zhu ◽  
Ying Yang ◽  
Victor L. Volkov ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Electrochemical Characterization ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
V2o5 Xerogel

scholarly journals Controlling interlayer interactions in vanadium pentoxide-poly(ethylene oxide) nanocomposites for enhanced magnesium-ion charge transport and storage

2017 ◽  
Vol 343 ◽  
pp. 580-591 ◽  
Author(s):  
Sanjaya D. Perera ◽  
Randall B. Archer ◽  
Craig A. Damin ◽  
Rubén Mendoza-Cruz ◽  
Christopher P. Rhodes
Keyword(s):  
Ethylene Oxide ◽  
Charge Transport ◽  
Vanadium Pentoxide ◽  
Magnesium Ion ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
And Storage

The Structure of Radiation Cross-Linked Poly (ethylene oxide) Gels

1971 ◽  
Vol 29 ◽  
pp. 76-77
Author(s):  
C. E. Cluthe ◽  
G. G. Cocks
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Parallel Plate ◽  
Average Molecular Weight ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Nitrogen Gas ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Initial Viscosity

Aqueous solutions of a 1 weight-per cent poly (ethylene oxide) (PEO) were degassed under vacuum, transferred to a parallel plate viscometer under a nitrogen gas blanket, and exposed to Co60 gamma radiation. The Co60 source was rated at 4000 curies, and the dose ratewas 3.8x105 rads/hr. The poly (ethylene oxide) employed in the irradiations had an initial viscosity average molecular weight of 2.1 x 106.The solutions were gelled by a free radical reaction with dosages ranging from 5x104 rads to 4.8x106 rads.

Preparation of Organized Mesoporous Silica from Sodium Metasilicate Solutions in Alkaline Medium Using Nonionic Surfactants

2003 ◽  
Vol 68 (10) ◽  
pp. 2019-2031 ◽  
Author(s):  
Markéta Zukalová ◽  
Jiří Rathouský ◽  
Arnošt Zukal
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Oxide ◽  
Sodium Metasilicate ◽  
Spherical Particles ◽  
Structure Directing Agent ◽  
Inorganic Species ◽  
Poly Ethylene Oxide ◽  
Acidic Conditions ◽  
Poly Ethylene ◽  
Hydrolysis Of

A new procedure has been developed, which is based on homogeneous precipitation of organized mesoporous silica from an aqueous solution of sodium metasilicate and a nonionic poly(ethylene oxide) surfactant serving as a structure-directing agent. The decrease in pH, which induces the polycondensation of silica, is achieved by hydrolysis of ethyl acetate. Owing to the complexation of Na+ cations by poly(ethylene oxide) segments, assembling of the mesostructure appears to occur under electrostatic control by the S0Na+I- pathway, where S0 and I- are surfactant and inorganic species, respectively. As the complexation of Na+ cations causes extended conformation of poly(ethylene oxide) segments, the pore size and pore volume of organized mesoporous silica increase in comparison with materials prepared under neutral or acidic conditions. The assembling of particles can be fully separated from their solidification, which results in the formation of highly regular spherical particles of mesoporous silica.

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