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#Post#: 2367--------------------------------------------------
Trivia question on batteries technology
DIR By: Michel
Date: March 26, 2013, 3:11 pm
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I'm sorry I've not had much time to post tasking problems as
before... but here's one when I've got the time, and energy ;D
Kordesch and Marko of the university of vienna in 1951 prepared
special metal oxide catalysts based on Co-Al spinels. The
carbon hydrogen electrodes were activated to enhance their
active surface. the carbon hydrogen electrodes contained small
amounts of Pt catalysts which could oxidize fuels like alcohols
and aldehydes directly at low temperature.
Questions:
1 would such a cell produce low or high current densities in
alkali electrolytes?
2 what could be the effect of low temperatures on the cell
efficiency?
3 what cheap substance was probably used to activate the carbon
electrodes?
#Post#: 2381--------------------------------------------------
Re: Trivia question on batteries technology
DIR By: Shelly Priscilia
Date: March 27, 2013, 11:35 am
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--- Quote from: Michel link ---
>
> I'm sorry I've not had much time to post tasking problems as
before... but here's one when I've got the time, and energy ;D
> Kordesch and Marko of the university of vienna in 1951
prepared special metal oxide catalysts based on Co-Al spinels.
The carbon hydrogen electrodes were activated to enhance their
active surface. the carbon hydrogen electrodes contained small
amounts of Pt catalysts which could oxidize fuels like alcohols
and aldehydes directly at low temperature.
> Questions:
> 1 would such a cell produce low or high current densities in
alkali electrolytes?
> 2 what could be the effect of low temperatures on the cell
efficiency?
> 3 what cheap substance was probably used to activate the
carbon electrodes?
>
--- End Quote ---
Answer to question 1:
higher current densities
Answer to question 2: increased cell efficiency.
#Post#: 2387--------------------------------------------------
Re: Trivia question on batteries technology
DIR By: Michel
Date: March 27, 2013, 12:13 pm
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Your answers are correct, but giving some explaination on how
you arrived at them is important
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