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Self-Assembled Silica Nano-Composite Polymer Electrolytes: Synthesis, Rheology & Electrochemistry

Description: The ultimate objectives of this research are to understand the principles underpinning nano-composite polymer electrolytes (CPEs) and facilitate development of novel CPEs that are low-cost, have high conductivities, large Li+ transference numbers, improved electrolyte-electrode interfacial stability, yield long cycle life, exhibit mechanical stability and are easily processable. Our approach is to use nanoparticulate silica fillers to formulate novel composite electrolytes consisting of surface… more
Date: January 24, 2007
Creator: Khan, Saad A.: Fedkiw Peter S. & Baker, Gregory L.
Partner: UNT Libraries Government Documents Department
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Characterization of the SEI on a carbon film electrode by combinedEQCM and spectroscopic ellipsometry

Description: The electrochemical quartz crystal microbalance (EQCM) andcyclic voltammetry have been applied simultaneously to characterizeelectron-beam deposited carbon film electrodes in LiClO4 orLiPF6-containing mixed electrolytes of ethylene carbonate (EC) anddimethyl carbonate (DMC). The structure of the carbon electrode was foundto be amorphous/disordered using Raman spectroscopy. Cyclic voltammetryin LiClO4 / EC+DMC demonstrated features typical of Liintercalation/deintercalation into/from the disorde… more
Date: January 1, 2002
Creator: Kwon, Kyungjung; Kong, Fanping; McLarnon, Frank & Evans, James W.
Partner: UNT Libraries Government Documents Department
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Theoretical Studies of the Behavior of Ions in Aqueous Solutions of Mixed Electrolytes With Respect to Osmionic Cell Operation

Description: From Forward: "This is the seventy-sixth of a series of reports designed to present accounts of progress in saline water conversion with the expectation that the exchange of such data will contribute to the long-range development of economical processes applicable to large-scale, low-cost demineralization of sea or other saline water."
Date: July 1963
Creator: Murphy, George W. & Matthews, Robert R.
Partner: UNT Libraries Government Documents Department
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High-Temperature Transference Numbers in Pure and Mixed Aqueous Electrolytes

Description: From Abstract: "An electronic technique was used in determinations of transference numbers in aqueous electrolyte solutions by the moving-boundary method. Data for 0.1 N NaCl at temperature from 15 degrees to 125 degrees C are presented in this report. Probable causes of difficulty with the method were identified. and recommendations are made in this report for further research to overcome the difficulties."
Date: March 1964
Creator: Dismukes, Edward B.
Partner: UNT Libraries Government Documents Department
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Cobalt (II) Halides as Electrolytes in Acentonitrile

Description: "The electrical conductance of CoCl2 and CoBr2 from 10−4 to 10−1 mol/l over the temperature range 0–35°C is reported. The effects of water as trace impurity, and the halide common ion effect on conductance are examined. The properties of these solutes are also examined using spectrophotometry and transport numbers. Crystalline “solvated” compounds, of empirical formulae [CoX2(CH3CN)3]x can be separated from the saturated solutions. The magnetic susceptibilities of the crystalline substrates are… more
Date: April 1962
Creator: Janz, George J.; Marcinkowsky, Arthur E. & Venkatasetty, H. V.
Partner: UNT Libraries Government Documents Department
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Materials System for Intermediate Temperature Solid Oxide Fuel Cell

Description: The objective of this work was to obtain a stable materials system for intermediate temperature solid oxide fuel cell (SOFC) capable of operating between 600-800 C with a power density greater than 0.2 W/cm{sup 2}. The solid electrolyte chosen for this system was La{sub 0.9}Sr{sub 0.1}Ga{sub 0.8}Mg{sub 0.2}O{sub 3}, (LSGM). To select the right electrode materials from a group of possible candidate materials, AC complex impedance spectroscopy studies were conducted between 600-800 C on symmetric… more
Date: January 12, 2006
Creator: Pal, Uday B. & Gopalan, Srikanth
Partner: UNT Libraries Government Documents Department
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Evaluation and Consolidation of Electrolytic Thorium

Description: Abstract: "Sound, fabricable ingots of thorium were produced by triple are melting of electrolytic thorium. Consumable electrodes were fabricated by tack welding of cold-pressed and vacuum-sintered bars of the granular thorium electrodeposited from a molten-salt bath. The hydrogen content of the electrodeposited material was reduced from 80 to 4 ppm by vacuum sintering at 1250 C at pressures below 1 x 10-(-3) mm of mercury. Both sodium and chlorine content were reduced during melting; sodium fr… more
Date: June 15, 1955
Creator: Saller, Henry A.; Dickerson, Ronald F. & Foster, Ellis L.
Partner: UNT Libraries Government Documents Department
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The Effects of Common Electrolytes on Growth and Development of Selected Species of Aquatic Actinomycetes

Description: The role that aquatic actinomycetes play, in the production of tastes and odors in water supplies has been investigated since 1948. The ability of these organisms to produce by-products in lakes and streams, which renders the water unpalatable, is of considerable public health importance. It is desirable that the waterworks industry has as much information as possible concerning the factors that contribute to the growth of these organisms. Since it appears that the aquatic actinomycetes may be … more
Date: August 1959
Creator: Sissom, Stanley L.
Partner: UNT Libraries
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Development of novel strategies for enhancing the cycle life of lithium solid polymer electrolyte batteries. Final report

Description: Lithium/solid polymer electrolyte (Li/SPE) secondary batteries are under intense development as power sources for portable electronic devices as well as electric vehicles. These batteries offer high specific energy, high energy density, very low self-discharge rates, and flexibility in packaging; however, problems have inhibited their introduction into the marketplace. This report summarizes findings to examine processes that occur with Li/SPE secondary batteries upon cyclic charging/dischargin… more
Date: April 30, 2001
Creator: Macdonald, Digby D.; Urquidi-Macdonald, Mirna; Allcock, Harry; Engelhard, George; Bomberger, N.; Gao, L. et al.
Partner: UNT Libraries Government Documents Department
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Electrodeposition of nickel from low temperature sulfamate electrolytes.Part 1 :Electrochemistry and film stress.

Description: The film stress of Ni films deposited at near-ambient temperatures from sulfamate electrolytes was studied. The particulate filtering of the electrolyte, a routine industrial practice, becomes an important deposition parameter at lower bath temperatures. At 28 C, elevated tensile film stress develops at low current densities (<10 mA/cm{sup 2}) if the electrolyte is filtered. Filtering at higher current densities has a negligible effect on film stress. A similar though less pronounced trend i… more
Date: November 1, 2005
Creator: Hachman, John T.; Kelly, J.J. (IBM/T.J. Watson Research Center, Yorktown Heights, NY); Talin, Albert Alec & Goods, Steven Howard
Partner: UNT Libraries Government Documents Department
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Methods of Calculation of Resistance to Polarization (Corrosion Rate) Using ASTM G 59

Description: The corrosion rate of a metal (alloy) can be measured using: (1) Immersion tests or weight loss such as in ASTM G 1 and G 31 or (2) Electrochemical techniques such as in ASTM G 59. In the polarization resistance (PR) or linear polarization method (G 59), the resistance to polarization (Rp) of a metal is measured in the electrolyte of interest in the vicinity of the corrosion potential (E{sub corr}). This polarization resistance can be mathematically converted into corrosion rates (CR). A plot o… more
Date: February 5, 2006
Creator: Wong, L L; King, K J; Martin, S I & Rebak, R B
Partner: UNT Libraries Government Documents Department
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Highly Conductive Solvent-Free Polymer Electrolytes for Lithium Rechargeable Batteries

Description: In order to obviate the deficiencies of currently used electrolytes in lithium rechargeable batteries, there is a compelling need for the development of solvent-free, highly conducting solid polymer electrolytes (SPEs). The problem will be addressed by synthesizing a new class of block copolymers and plasticizers, which will be used in the formulation of highly conducting electrolytes for lithium-ion batteries. The main objective of this Phase-I effort is to determine the efficacy and commercia… more
Date: October 21, 2004
Creator: Filler, Robert; Shi, Zhong & Mandal, Braja
Partner: UNT Libraries Government Documents Department

Inorganic Electrolytes in Anhydrous Acetonitrile

Description: "The properties of solutions of KI, AgNO/sub 3/, CoCl/sub 2/, and CoBr/ sub 2/ in anhydrous acetonitrile were studied by means of measurements of electric conductance, density, viscosity, and spectrophotometry. The data are examined in the light of theoretical concepts of electrolytes. The properties of acetonitrile as an ionizing solvent are discussed briefly, and a summary of existing information for inorganic salts in this solvent is presented."
Date: unknown
Creator: Janz, George J. & Marcinkowsky, A E
Partner: UNT Libraries Government Documents Department
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Survey of Non-Aqueous Conductance Data

Description: "A compilation made as part of a research program dealing with the thermodynamics and electrical conductance of inorganic electrolytes in polar organic solvents is presented. Conductance and association constant data are included dating from 1922 through June 1962, classified both by solute and solvent. Other features include a selection of the physical properties of the most commonly-used organic solvents, a guide to alkylammonium salts studied in four or more solvents, and a survey of conduct… more
Date: December 1962
Creator: Janz, George J.; Kelly, Frank J. & Venkatasetty, H. V.
Partner: UNT Libraries Government Documents Department
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