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High temperature molten carbonate fuel cells

Description: Progress is reported on four tasks: (1) component development, (2) cell testing, (3) stack design and development, and (4) modeling and systems analysis. A hydrogen sintering furnace capable of producing 0.5 sq meter electrodes was installed and operating procedures are being established. To develop stabilized anode structures, a fine particle nickel-cobalt alloy powder was prepared from their hydroxide mixture through the steps of co-precipitation, spray-drying and reduction. Electrodes have b… more
Date: February 1, 1978
Creator: Baker, B.; Burns, D.; Dharia, D.; Herscovici, C.; Kinnibrugh, D.; Paetsch, L. et al.
Partner: UNT Libraries Government Documents Department
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Energy savings by means of fuel cell electrodes in electro-chemical industries. Progress report, August 1-October 31, 1978

Description: Caustic half cells are described and data reported for tests run to evaluate the technology involved in the operation of air cathodes for the Caustic-Chlorine Industry. The majority of tests were run at 300 ASF in a 23% NaOH electrolyte at 75/sup 0/C with a CO/sub 2/ free air efficiency of 33%. Data are presented for a 7200-h life test which is in operation and represents the state of the art. Runs have been made to identify the limiting current density and air efficiency for the standard RA19 … more
Date: December 1, 1978
Creator: Allen, R.J.; Juda, W. & Lindstrom, R.W.
Partner: UNT Libraries Government Documents Department
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Fuel cell research on second-generation molten-carbonate systems. Quarterly technical progress report, October 1-December 31, 1977

Description: The objectives of the FY 1978 program are to (a) improve the performance and endurance of the molten carbonate fuel cell and (b) develop cost-effective cell components. The required effort is subdivided into three tasks: Task 1 is cell and component development. Improved components and cost-effective fabrication processes will be developed. This will include developing stable anode structures and improved electrolyte structures that can be fabricated by cost-effective processes. Task 2 is direc… more
Date: March 1, 1978
Partner: UNT Libraries Government Documents Department
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Thin film battery/fuel cell power generating system. Final report, Task E-4, April 1976-April 1978

Description: A two-year researth program to design and demonstrate the technical feasibility of a high-temperature solid-electrolyte fuel cell is described in detail. A rare-earth chromite, in particular, La /sub 95/Mg /sub 05/Cr /sub 75/Al /sub 25/0/sub 3/ was identified, synthesized by RF-sputtering tested for resistivity, thermal expansion and inertness in contact with yttria-stabilized zirconia, and was found promising as a candidate interconnection material. Films of these interconnection materials hav… more
Date: March 31, 1978
Creator: Feduska, W.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of candidate magnetohydrodynamic materials for the U-02 Phase III test

Description: As part of a cooperative U.S.--U.S.S.R. program, electrode and insulator materials tested at the Westinghouse Electrode Systems Test Facility in Pittsburgh, Pennsylvania, were evaluated. From this evaluation materials will be selected for use in the third phase of tests being conducted in the U-02 magnetohydrodynamics test facility in the Soviet Union. Electrode and insulator materials were examined with both an optical microscope and a scanning electron microscope. The cathodes were found to b… more
Date: June 1, 1978
Creator: Marchant, D.D. & Bates, J.L.
Partner: UNT Libraries Government Documents Department
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Selection and evaluation of materials for advanced water electrolyzers

Description: The mechanism of dissolution of ruthenium anodes and of the time variation of overpotential on such electrodes have been elucidated using combined electrochemical-ellipsometric studies. Attempts are being made to stabilize ruthenium based electrocatalysts for SPE water electrolyzers by investigation of mixed oxides with the requisite characteristics for highly efficient oxygen electrodes. The following materials have been identified as the most attractive for advanced alkaline water electrolyze… more
Date: January 1, 1978
Creator: Srinivasan, S; Lu, P W.T.; Kissel, G; Kulesa, F & Orehotsky, J
Partner: UNT Libraries Government Documents Department
open access

Investigations on the use of anodic stripping voltammetry for the analyses of lead in saline environments

Description: Research is reported directed to modification of the anodic stripping voltammetry (ASV) analytic method in order to acquire data for lead from ambient sea water conditions, and development of a chemical model which uses these data to identify inorganic lead species for saline environments. Laboratory and field samples were analyzed for lead partitioning in: (a) KCl electrolyte solutions; (b) I.A.P.S.O. Standard Sea Water; (c) seawater samples from Quatsino Sound, British Columbia; (d) a series … more
Date: August 1, 1978
Creator: Case, C.W.
Partner: UNT Libraries Government Documents Department
open access

Azimuthal spread of the avalanche in proportional counters

Description: The angular distribution of the avalanche around the anode wire is determined measuring the distribution of positive ions arriving on cathode strips surrounding the anode, for each single event. The width is typically 50/sup 0/ to 100/sup 0/ FWHM, in the proportional mode of operation; larger values are obtained at high gas gain. The angular distribution also depends on the anode wire diameter, the gas mixture and the space charge density in the avalanche. The factors determining the avalanche … more
Date: January 1, 1978
Creator: Fischer, J.; Okuno, H.; Radeka, V. & Walenta, A.H.
Partner: UNT Libraries Government Documents Department
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