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Title: Rotating disk studies in molten carbonates; 1: Electrode design

Abstract

The objective of the present effort has been to design and fabricate an electrode for the investigation of high temperature molten salts, particularly the alkali carbonates used in the molten carbonate fuel cell (MCFC). A rotating disk electrode has been designed, fabricated, and tested for use in high temperature molten salt systems to determine mass-transport parameters that have been difficult to obtain hitherto due to experimental difficulties. The design incorporates a centrifugally cast and machined solid gold cone soldered to an Inconel shaft, which fits snugly in a precision-machined high purity alumina sheath. A thermal expansion seal obtained when the electrode is heated to the experimental temperature prevents seepage of electrolyte between the gold and insulator. Preliminary tests have shown good performance.

Authors:
;  [1]
  1. (Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Chemical Engineering)
Publication Date:
OSTI Identifier:
7038561
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society; (United States)
Additional Journal Information:
Journal Volume: 141:3; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; ELECTRODES; DESIGN; MOLTEN CARBONATE FUEL CELLS; FABRICATION; MASS TRANSFER; PERFORMANCE TESTING; ROTATION; SEALS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FUEL CELLS; HIGH-TEMPERATURE FUEL CELLS; MOTION; TESTING; 300501* - Fuel Cells- Design & Development; 300503 - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Ramaswami, K., and Selman, J.R. Rotating disk studies in molten carbonates; 1: Electrode design. United States: N. p., 1994. Web. doi:10.1149/1.2054780.
Ramaswami, K., & Selman, J.R. Rotating disk studies in molten carbonates; 1: Electrode design. United States. doi:10.1149/1.2054780.
Ramaswami, K., and Selman, J.R. Tue . "Rotating disk studies in molten carbonates; 1: Electrode design". United States. doi:10.1149/1.2054780.
@article{osti_7038561,
title = {Rotating disk studies in molten carbonates; 1: Electrode design},
author = {Ramaswami, K. and Selman, J.R.},
abstractNote = {The objective of the present effort has been to design and fabricate an electrode for the investigation of high temperature molten salts, particularly the alkali carbonates used in the molten carbonate fuel cell (MCFC). A rotating disk electrode has been designed, fabricated, and tested for use in high temperature molten salt systems to determine mass-transport parameters that have been difficult to obtain hitherto due to experimental difficulties. The design incorporates a centrifugally cast and machined solid gold cone soldered to an Inconel shaft, which fits snugly in a precision-machined high purity alumina sheath. A thermal expansion seal obtained when the electrode is heated to the experimental temperature prevents seepage of electrolyte between the gold and insulator. Preliminary tests have shown good performance.},
doi = {10.1149/1.2054780},
journal = {Journal of the Electrochemical Society; (United States)},
issn = {0013-4651},
number = ,
volume = 141:3,
place = {United States},
year = {1994},
month = {3}
}