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Passivation of Aluminum in Lithium-ion Battery Electrolytes withLiBOB

Description: A combination of cyclic polarization tests, electrochemical impedance spectroscopy, and electrochemical quartz crystal microbalance (EQCM) measurements indicate a film is formed when aluminum is polarized above 4.5V in 1:1 EC+DMC with 1M LiBOB. The quantity of film that is formed increases with increasing applied potential. Results of EQCM tests suggest the film is AlBO{sub 3}. The film is very protective against corrosion and inhibits pitting corrosion of aluminum in normally corrosive 1M LiTF… more
Date: September 9, 2006
Creator: Zhang, Xueyuan & Devine, Thomas M.
Partner: UNT Libraries Government Documents Department
open access

Hybrid Solar Cells with Prescribed Nanoscale Morphologies Based onHyperbranched Semiconductor Nanocrystals

Description: In recent years, the search to develop large-area solar cells at low cost has led to research on photovoltaic (PV) systems based on nanocomposites containing conjugated polymers. These composite films can be synthesized and processed at lower costs and with greater versatility than the solid state inorganic semiconductors that comprise today's solar cells. However, the best nanocomposite solar cells are based on a complex architecture, consisting of a fine blend of interpenetrating and percolat… more
Date: September 9, 2006
Creator: Gur, Ilan; Fromer, Neil A.; Chen, Chih-Ping; Kanaras, AntoniosG. & Alivisatos, A. Paul
Partner: UNT Libraries Government Documents Department
open access

Development of a Method for Measuring Carbon Balance in Chemical Sequestration of CO2

Description: Anthropogenic CO2 released from fossil fuel combustion is a primary greenhouse gas which contributes to “global warming.” It is estimated that stationary power generation contributes over one-third of total CO2 emissions. Reducing CO2 in the atmosphere can be accomplished either by decreasing the rate at which CO2 is emitted into the atmosphere or by increasing the rate at which it is removed from it. Extensive research has been conducted on determining a fast and inexpensive method to sequeste… more
Date: September 9, 2006
Creator: Cheng, Zhongxian; Pan, Wei-Ping & Riley, John T.
Partner: UNT Libraries Government Documents Department
open access

Surfactant Based Enhanced Oil Recovery and Foam Mobility Control

Description: Surfactant flooding has the potential to significantly increase recovery over that of conventional waterflooding. The availability of a large number of surfactant structures makes it possible to conduct a systematic study of the relation between surfactant structure and its efficacy for oil recovery. A mixture of two surfactants was found to be particularly effective for application in carbonate formations at low temperature. The mixture is single phase for higher salinity or calcium concentrat… more
Date: September 9, 2006
Creator: Hirasaki, George J. & Miller, Clarence A.
Partner: UNT Libraries Government Documents Department
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