DIRECT LIGNIN FUEL CELL FOR POWER GENERATION
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/cm2. 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/cm2 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.
direct carbon fuel cell direct lignin fuel cell kraft lignin lignosulphonate
Raquel Bohn Lima Jiebing Li Mikael E. Lindstr(o)m Rizwan Raza Haiying Qin Liangdong Fan Bin Zhu
Department of Fiber and Polymer Technology, SE-10044 Stockholm, Sweden Department of Fiber and Polymer Technology, SE-10044 Stockholm, Sweden Wallenberg Wood Science Cente Department of Energy Technology, SE-10044 Stockholm, Sweden
国际会议
16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)
天津
英文
257-262
2011-06-08（万方平台首次上网日期，不代表论文的发表时间）