Direct lignin fuel cell for power generation
2011 (English)In: 16th International Symposium on Wood, Fiber and Pulping Chemistry: Proceedings, ISWFPC, 2011, 257-262 p.Conference paper (Refereed)
Lignin, the second most abundant component after cellulose in biomass, has been examined in this study as a fuel for a direct conversion into electricity using direct carbon fuel cell (DCFC). Two different types of industrial lignins were investigated: lignosulphonate (LS) and kraft lignin (KL), either directly in their commercial forms, after their blending with commercial active carbon (AC) or after alternation of their structures by a pH adjustment to pH 10. It has been 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 85∼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 0.680-0.699 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 has been concluded that a direct lignin fuel cell is feasible and the lignin hydrophilicity is critical for the cell performance.
Place, publisher, year, edition, pages
2011. 257-262 p.
, 16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC, 1
Direct carbon fuel cell, Direct lignin fuel cell, Kraft lignin, Lignosulphonate, Active carbon, Cell performance, Direct carbon fuel cells, Direct conversion, Maximum current density, PH adjustment, Power densities, Blending, Carbon fibers, Current density, Electric power generation, Fuel cells, Lignin, Open circuit voltage, pH, Wood, Alkali Lignins, Carbon, Electric Power, Lignins, Mixing, Power Generation
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-149757ScopusID: 2-s2.0-84862965248OAI: oai:DiVA.org:kth-149757DiVA: diva2:749299
16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC; Tianjin; China; 8 June 2011 through 10 June 2011
QC 201409232014-09-232014-08-272014-09-23Bibliographically approved