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Effects of Na2MoO4 and Na2WO4 on molybdenum and tungsten electrodes for the alkali metal thermoelectric converter (AMTEC)The effects of adding Na2MoO4 and Na2WO4 to porous Mo and W electrodes, respectively, on the performance and impedance characteristics of the electrodes in an alkali metal thermoelectric converter (AMTEC) were investigated. It was found that corrosion of the porous electrode by Na2MoO4 or Na2WO4 to form Na2MO3O6 and WO2, respectively, and recrystallization of the Mo or W as the salt evaporates, result in major morphological changes including a loss of columnar structure and a significant increase in porosity. This effect is more pronounced in Na2MoO4/Mo electrodes, due to the lower stability of Na2MoO4.
Document ID
19890054072
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Williams, R. M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wheeler, B. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jeffries-Nakamura, B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Loveland, M. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bankston, C. P.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1988
Publication Information
Publication: Electrochemical Society, Journal
Volume: 135
ISSN: 0013-4651
Subject Category
Energy Production And Conversion
Accession Number
89A41443
Distribution Limits
Public
Copyright
Other

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