Scale up of bioelectrochemical systems (BESs) requires highly conductive, biocompatible and stable electrodes. Here we present pyrolytic carbon-coated stainless steel felt (C-SS felt) as a high-performance and scalable anode. The electrode is created by generating a carbon layer on stainless steel felt (SS felt) via a multi-step deposition process involving α-d-glucose impregnation, caramelization, and pyrolysis. Physicochemical characterizations of the surface elucidate that a thin (20 ± 5 μm) and homogenous layer of polycrystalline graphitic carbon was obtained on SS felt surface after modification. The carbon coating significantly increases the biocompatibility, enabling robust electroactive biofilm formation. The C-SS felt electrodes reach current densities (jmax) of 3.65 ± 0.14 mA/cm2 within 7 days of operation, which is 11 times higher than plain SS felt electrodes (0.30 ± 0.04 mA/cm2). The excellent biocompatibility, high specific surface area, high conductivity, good mechanical strength, and low cost make C-SS felt a promising electrode for BESs.
Pyrolytic carbon-coated stainless steel felt as a high-performance anode for bioelectrochemical systems / Guo, Kun; Hidalgo, Diana; Tommasi, Tonia; Rabaey, Korneel. - In: BIORESOURCE TECHNOLOGY. - ISSN 0960-8524. - 211(2016), pp. 664-668.
|Titolo:||Pyrolytic carbon-coated stainless steel felt as a high-performance anode for bioelectrochemical systems|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.biortech.2016.03.161|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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