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Electrochemical photovoltaic cells. Project 65039 quarterly technical progress report, April 15-July 31, 1980

Description: Liquid-junction photoelectrochemical cells can be used either for the direct conversion of solar energy to electricity or to generate stored chemical species available for later electrochemical discharge. The objectives of this program are to identify experimental approaches for electrochemical photovoltaic cells that not only show promise of high power-conversion efficiencies but also have the potential to achieve long life and the capacity for energy storage. The work is organized as follows:… more
Date: September 1, 1980
Creator: Ang, P. G.P. & Sammells, A. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrochemical photovoltaic cells. Project 65021 quarterly technical progress report, October 15, 1979-January 15, 1980

Description: During the third quarter of this program, liquid junction devices based upon the semiconductors MoSe/sub 2/, MoS/sub 2/, GaAs, and CdSe have been evaluated. Lifetime testing of MoSe/sub 2/ and MoS/sub 2/ materials in acidic halogen electrolytes at constant current densities of 5 mA/cm/sup 2/ have shown excellent stability to date. For MoSe/sub 2/ single crystals in the electrolyte 1M HBr + 1M Br/sub 2/, short-circuit currents of 63 mA/cm/sup 2/ were achieved with a power conversion efficiency o… more
Date: March 1, 1980
Creator: Ang, P.G.P.; Remick, R.J. & Sammells, A.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of optimum electrolyte composition for molten carbonate fuel cells

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: January 1, 1987
Creator: Yuh, C. Y. & Pigeaud, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research on alkaline zinc secondary electrodes with emphasis on model testing. Final report, June 15, 1976-August 31, 1979

Description: The goal of this work was to obtain information useful in the improvement of life and performance of alkaline secondary cells utilizing porous zinc electrodes. Toward this end, experiments designed to test predictions of the most sophisticated mathematical models of the porous zinc electrode were performed. This approach is based on the conviction that the surest way to realize a significantly longer-lived zinc electrode is through better understanding of the electrode gained through the intera… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research, development and demonstration of nickel-zinc batteries for electric vehicle propulsion. Annual report, 1979

Description: Progress achieved under ANL Contract No. 31-109-38-4248 from 16 August 1978 to 16 August 1979 is reported. The first segment of the overall program, component development, consists of four basic tasks proceeding in parallel: nickel electrode development, zinc electrode development, separator development, and sealed cell development. Each of these tasks is reported herein on a self-contained basis. System engineering is the second major subdivision of the effort. It includes the design and testi… more
Date: June 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inert Electrodes Program fiscal year 1988 annual report

Description: The Inert Electrodes Program, being conducted by Pacific Northwest Laboratory (PNL), involves improving the Hall-Heroult cells used by the Aluminum Industry for the electrochemical production of aluminum. The PNL research centers on developing more energy efficient, longer-lasting anodes and cathodes and ancillary equipment. Major accomplishments for Fiscal Year 1988 are summarized below. 14 refs., 56 figs., 9 tabs.
Date: October 1, 1989
Creator: Strachan, D.M.; Marschman, S.C.; Davis, N.C.; Friley, J.R. & Schilling, C.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ELECTROLYTIC DISSOLUTION OF NUCLEAR FUELS. PART III. STAINLESS STEEL (304) IN NITRATE SOLUTIONS

Description: The potential-current density relationships for 304 stainless steel dissolution in a nitrate system were studied as a function of solution composition and temperature in order to optimize the conditions for electrolytic dissolution of ihis material. In the nitrate system, the anodic dissolution of steel takes place in the transpassive region. Under some conditions, deviations from Tafel behavior are observed which depend greatly on the nitrate and hydrogen ion concentration, and on temperature.… more
Date: June 1, 1962
Creator: Aylward, J. R. & Whitener, E. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: February 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fuel cell applied research: electrocatalysis and materials. Quarterly report, April 1-June 30, 1979

Description: Topics studied include: (1) oxygen reduction and cyclic voltammetry on carbon supported platinum electrodes in 85% H/sub 3/PO/sub 4/; (2) oxygen reduction on platinum in 85% H/sub 3/PO/sub 4/ with small additions of trifluoromethane sulfonic acid or trifluoracetic acid; (3) overpotential characteristics of electrodes at interfaces with solid oxide electrolytes; and (4) oxygen diffusion through interconvection material in high temperature solid electrolyte fuel cells. Also, studies of phosphoric… more
Date: January 1, 1980
Creator: Srinivasan, S.; Isaacs, H. S.; McBreen, J.; O'Grady, W. E.; Olender, H.; Olmer, L. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrochemical photovoltaic cells/stabilization and optimization of II-VI semiconductors. First technical progress report, 15 April 1980-30 June 1980

Description: The overall goal of this program is to provide the basis for designing a practical electrochemical solar cell based on the II-VI compound semiconductors. Emphasis is on developing new electrolyte redox systems and electrode surface modifications which will stabilize the II-VI compounds against photodissolution without seriously degrading the long-term solar response. The bulk electrode material properties are also being optimized to provide the maximum solar conversion efficiency and greatest i… more
Date: July 20, 1980
Creator: Noufi, R.; Tench, D. & Warren, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The effects of microstructure on the corrosion of glycine/nitrate processed cermet inert anodes: A preliminary study

Description: The Inert Electrodes Program at the Pacific Northwest Laboratory (PNL) is supported by the Office of Industrial Processes of the US Department of Energy and is aimed at improving the energy efficiency of Hall-Heroult cells through the development of inert anodes. The inert anodes currently under the study are composed of a cermet material of the general composition NiO-NiFe{sub 2}O{sub 4}-Cu. The program has three primary objectives: (a) to evaluate the anode material in a scaled-up, pilot cell… more
Date: July 1, 1991
Creator: Windisch, C. F. Jr.; Chick, L. A.; Maupin, G. D. & Stice, N. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SPE water electrolysis technology development for large scale hydrogen production. Progress report No. 4, June 15, 1976--September 30, 1976

Description: Porous carbon fiber paper was selected as the cathode membrane and electrode assembly support based on over 1200 hr operational evaluation. Three potential anode supports are under test. All three appear technically satisfactory after 500 to 1200 hr operational evaluation on each. Optimization of molds and molding techniques for a foil backed ribbed carbon collector of bipolar design, including ribbed flow fields, manifolds, ports and sealing surfaces, is in process. Over 2800 hr demonstrated a… more
Date: October 7, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The effects of halides on the performance of coal gas-fueled molten carbonate fuel cells: Final report, October 1986-October 1987

Description: This report presents the results of a program to determine the probable tolerable limits of hydrogen chloride and hydrogen fluoride present in the fuel and oxidant streams of molten carbonate fuel cells that are operating on gasified coal. A literature survey and thermodynamic analyses were performed to determine the likely effects of halides on cell performance and materials. Based on the results of these studies, accelerated corrosion experiments and electrode half-cell performance tests were… more
Date: October 1, 1987
Creator: Magee, T. P.; Kunz, H. R.; Krasij, M. & Cote, H. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Galvanostatic polarization of zinc microanodes in KOH electrolytes

Description: This report includes a critical review of the current literature on the anodic passivation of zinc electrodes, a description of supplementary experimental studies to extend the data to a low-current-density region and to provide a basis for evaluating conflicting results of published work, and a new interpretation of the anodic passivation mechanism. This work provides a starting point for understanding passivation phenomena in battery electrodes. The utilization of a zinc electrode in alkaline… more
Date: May 1, 1980
Creator: Liu, M. B.; Cook, G. M. & Yao, N. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of molten carbonate fuel cell power plant. Quarterly progress report, February 1, 1982-April 30, 1982

Description: Work proceeded this quarter mainly under three program tasks. Under Task 1.0, work was started on preparing a description of the reference Steam Injection System. It is planned to lay out the plant in power unit trains rated at a nominal 100 MW(e). Under Task 2.0, work continued on anode, cathode, current collector, and electrolyte tile develoment and stack design and analysis. Corrosion test results of various current collector materials after 3500 hours exposure are reported. Sintering data a… more
Date: June 16, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrorefining of uranium and plutonium from liquid cadmium

Description: Feasibility of electrorefining of U, Pu, and mixtures thereof using a liquid Cd anode and a molten-salt electrolyte was investigated for the proposed pyrometallurgical process for the Integral Fast Reactor fuel. (DLC)
Date: January 1, 1985
Creator: Tomczuk, Z.; Poa, D. S.; Miller, W. E. & Steunenberg, R. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of molten carbonate fuel cell technology. Technical progress report, April-June 1982

Description: Work during the reporting period focused on the investigation of appropriate microstructural characteristics (pore size, porosity) required for a ceramic filled ribbed anode and an open porosity cathode. This included screening of alternative starting nickel powders and processing methods used during plaque fabrication as well as continued development and testing of the low cost LiAlO/sub 2/ stabilizer. A 5000 hour bench scale test with improved anode hardware has shown a significant improvemen… more
Date: January 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of photoelectrochemical cells based on compound semiconductors and nonaqueous electrolytes. Semiannual report, May 1, 1981-October 31, 1981

Description: A reproducible procedure for chemical bath deposition (CBD) of CdSe has been documented in detail, allowing a consistent production of photoelectrode yielding 5.5 to 6.5% conversion efficiency in alkaline polysulfide electrolyte (employing a tungsten halogen lamp/KG-2 filter solar simulated light source). The CBD films of n-CdSe on Ti have achieved an efficiency of approx. 10% under both solar simulated and real sunlight conditions using an Fe(CN)/sub 6//sup -3///sup -4/ electrolyte at pH 13. F… more
Date: March 1, 1982
Creator: Rauh, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Avalanche localization and its effects in proportional counters

Description: Avalanche development around the anode wire in a gas proportional counter is investigated. In the region of proportional gas amplification, the avalanche is found to be well localized on one side of the anode wire, where the electrons arrive along the field lines from the point of primary ionization. Induced signals on electrodes surrounding the anode wire are used to measure the azimuthal position of the avalanche on the anode wire. Practical applications of the phenomena such as left-right as… more
Date: November 1, 1977
Creator: Fischer, J.; Okuno, H. & Walenta, A.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Assessment of deposition for power-plant molten-carbonate fuel cells

Description: Particulate deposition in molten carbonate fuel cell anodes is addressed for operation with future coal gasification power plants. Power plant systems factors affecting deposition are explored such as gas cleanup requirements for particulate removal and gasifier product gas composition differences for various gasifier types and operational modes (air blown versus oxygen blown). Effects of fuel cell characteristics (including average cell current density and fuel utilization) on anode deposition… more
Date: March 15, 1982
Creator: Wenglarz, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Investigation of the Corrosion Resistance of Brazing Alloys for Austenitic Stainless Steel Fuel Elements for Service in 565 F Pressurized Water

Description: Since brazing was the method selected for joining the stainless steel SM- l reactor fuel element, corrosion studies were conducted on various potential brazing alloys to evaluate their resistance under the approximate pressurized- water conditions of the SM-1. The program consisted mainly of testing type 304L stainless steel T'' joints brazed with selected alloys in quiescent, degassed, and deionized autoclaved water at 565 deg F under 1200-psi pressure. In the initial phase of the investigatio… more
Date: April 12, 1962
Creator: Beaver, R. J.; Leitten, C. F. Jr. & English, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: May 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sulfur tolerant anode materials

Description: The goal of this program is the development of a molten carbonate fuel cell (MCFC) anode which is more tolerant of sulfur contaminants in the fuel than the current state-of-the-art nickel-based anode structures. This program addresses two different but related aspects of the sulfur contamination problem. The primary aspect is concerned with the development of a sulfur tolerant electrocatalyst for the fuel oxidation reaction. A secondary issue is the development of a sulfur tolerant water-gas-sh… more
Date: February 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PROCESSING OF POWER REACTOR FUELS. Fifteenth Quarterly Progress Report, April 1-July 1, 1961

Description: The results of experiments in support of an electrolytic dissolution process for fuel elements clad in stainiess steel or zirconium are given. The rate of disintegration of Zircaloy-2 anodes in nitric acid did not vary with acid concentration. Nitric oxide, formaldehyde, and process solvent were found effective in reducing the corrosion of stainiess steel equipment that was caused by the chromate present in acid solutions containing d ssolved stainless steel. Means were developed to improve the… more
Date: September 1, 1961
Creator: Owen, J.H. comp.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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