Direct lignin fuel cell for power generation
2013 (English)In: RSC Advances, ISSN 2046-2069, Vol. 3, no 15, 5083-5089 p.Article in journal (Refereed) Published
Lignin, the second most abundant component after cellulose in biomass, has been examined in this study as a fuel for direct conversion into electricity using direct carbon fuel cells (DCFC). Two different types of industrial lignins were investigated: Lignosulfonate (LS) and Kraft lignin (KL), in their commercial forms, after their blending with commercial active carbon (AC) or after alteration of their structures by a pH adjustment to pH 10. It was found that the open circuit voltage (OCV) of the DCFC could reach around 0.7 V in most of the trials. Addition of active carbon increased the maximum current density from 43-57 to 83-101 mA cm(-2). The pH adjustment not only increased the maximum current density but also reduced the differences between the two types of lignins, resulting in an OCV of 0.68-0.69 V and a maximum current density of 74-79 mA cm(-2) from both lignins. Typical power density was 12 (for KL + AC) and 24 mW cm(-2) (for LS + AC). It is concluded that a direct lignin fuel cell is feasible and the lignin hydrophilicity is critical for the cell performance.
Place, publisher, year, edition, pages
2013. Vol. 3, no 15, 5083-5089 p.
Direct Conversion, Carbon Fuels, Electrolyte, Biomass, Electricity, Pyrolysis, Chemistry, Kinetics, Nmr
Other Chemistry Topics
IdentifiersURN: urn:nbn:se:kth:diva-120568DOI: 10.1039/c3ra23418eISI: 000316226500034ScopusID: 2-s2.0-84878045767OAI: oai:DiVA.org:kth-120568DiVA: diva2:615787
QC 201304122013-04-122013-04-112013-04-12Bibliographically approved