Which is the anode material? Could be carbon felt? At what potential is the anode or cell (if two electrodes configuration is used) working?

Regards

Dear Raul,

I am using Carbon cloth as a anode material and anode potential is 0.6V. Can you help?

Have you pretreated the carbon cloth? A frecuent problem is due to the air trapped in the material, that avoid bacteria attachment. If the potential is referred to Ag/AgCl RE the potential seems to be too high. Typical values could be in the range between -0.4 and 0 V.

Dear Raul,

Thank you for your suggestion regarding anode material but anode potential is 0.6V in most of the research papers like prof. Lagon and team. Can you elaborate your comment for better understanding, if possible?

Dear Bharath,

Regarding the question of the potential of the working electrode:

As you can see from this well-known bioelectrochemistry tutorial (http://www.xoch.info/uploads/7/7/9/2/7792995/ismet_tutorials_issue_2.pdf), the potential window for the study of the oxidation reaction in a bioanode does not exceed 0V vs Ag/AgCl RE. This fact does not indicate that anodes cannot work at these potentials, but it indicates that 0.6 is a less frequent potential.

As for the other question, my personal experience and that of other colleagues indicates that pre-treatment is often useful to avoid hydrophobicity problems (details inArticle Impact of the start-up process on the microbial communities ...

Good luck.

Dear Raul,

Thank you very much for prompt reply.

I will go through the your suggested articles.