Baco 3 nanoparticles are demonstrated as outstanding electrocatalysts to enhance the high temperature oxygen reduction reaction (orr) in solid oxide fuel cells (sofcs).
In my past life of chrome plating, i would periodically have to add both sulfate and barium carbonate. we operated a mixed catalyst bath. to raise sulfate .02 oz/gal i added 200 ml sulfuric / 1000 gal solution. to lower sulfate .02 i added 7 lbs barium carbonate. this is done on off shift, lightly sprinkled over surface of tanks with scrubber ...
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At the carburizing temperature (940˚c), p 2 is much higher than p 1, hence, barium carbonate can only exist in the form of baco 3, barium oxide can't appear, the decomposition-generation cyclic reaction is never to take place. if, in accordance with the crmm, the barium carbonate should be inactive, but it is actually a good catalyst.

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