Open AccessA novel All‐in‐One electrolysis electrode and bioreactor enable better study of electrochemical effects and electricity‐aided bioprocesses
Author(s) -
Utesch Tyll,
Zeng AnPing
Publication year - 2018
Publication title -
engineering in life sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.547
H-Index - 57
eISSN - 1618-2863
pISSN - 1618-0240
DOI - 10.1002/elsc.201700198
Subject(s) - electrolysis , bioconversion , bioreactor , bioelectrochemistry , electrode , microbial electrolysis cell , materials science , chemistry , process engineering , electrochemistry , electrolyte , engineering , fermentation , food science , organic chemistry
Abstract An autoclavable All‐in‐One electrolysis electrode in a rod shape assembly is developed as a new tool for bioelectrochemical systems and electricity‐aided bioprocesses. It can replace the classic two‐chamber bioelectrochemical system for electrolysis reactions, be inserted into conventional bioreactors and is easily adaptable as electrocatalytic surface or generator of super‐fine bubbles (H 2 and O 2 ) for bioconversion processes. Whereas the bioreactor itself functions as the working electrode chamber, a well‐integrated inner counter electrode chamber enables water electrolysis without the normally encountered undesired ion‐transfer effect. The efficiencies of the electrode are characterized and its advantages and usefulness compared to the classic H‐Cell bioelectrochemical system (BES) are demonstrated with glycerol fermentations by Clostridium pasteurianum DSM 525.