Open AccessCopper-Plated Stainless Steel for Bipolar Plates in Direct-Oxidation SOFC
Author(s) -
S.-I. Lee
Publication year - 2003
Publication title -
ecs proceedings volumes
Language(s) - English
Resource type - Journals
eISSN - 2576-1579
pISSN - 0161-6374
DOI - 10.1149/200307.0865pv
Subject(s) - butane , tar (computing) , materials science , copper , anode , hydrocarbon , thermal decomposition , carbon fibers , chemical engineering , decomposition , carbon steel , metallurgy , plating (geology) , deposition (geology) , toluene , composite material , chemistry , electrode , catalysis , organic chemistry , corrosion , paleontology , sediment , geophysics , composite number , computer science , engineering , biology , programming language , geology
The performance of copper-plated, stainless-steel plates, having an active area of 2.5x2.5 cm 2 square, was tested for use with an SOFC having a Cu-based anode for direct oxidation of n-butane at 973 K. In the absence of Cu, catastrophic carbon deposition, which rapidly caused blocking of the fuel channels, was observed due to reaction of the n-butane on the stainless steel. However, plating the fuel channels with Cu effectively prevented formation of large carbon deposits. After 24 hr operation in pure n-butane, the Cu plating effectively suppressed carbon deposition, except for the formation of tar-like substances formed by gas-phase thermal decomposition of the hydrocarbon. The tar-like substances were found to be soluble in toluene and could be analyzed by GC/MS, which showed that they were primarily poly-aromatic hydrocarbons having 2-6 aromatic rings.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom