Comparison of woody and non-woody biomass as a fuel source for direct carbon fuel cell

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Palniandy, L.K.^1 ; Yoon, L.W.^1 ; Wong, W.Y.^2 ; Yong, S.K.^3

School of Engineering, Taylor's University, Taylor's Lakeside Campus, No.1 Jalan taylor's, Selangor, Subang Jaya

47500, Malaysia^1

Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^2

School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor

47500, Malaysia^3

关键词: Cell performance;    Electrochemical performance;    Emerging technologies;    Energy productions;    Oxygen functional groups;    Power densities;    Pyrolysis temperature;    Woody biomass;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012124/pdf
DOI  :  10.1088/1755-1315/268/1/012124

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Direct carbon fuel cell (DCFC) is an emerging technology for energy production. The application of biomass in DCFC will be a major transition from the use of coals to generate energy. However, the relationship between biomass or biochar composition and electrochemical performance of DCFC is yet to be studied. The performance of DCFC by using carbon fuel originated from woody and non-woody biomass were compared and investigated in this study. The effect of pyrolysis temperature ranges from 550 °C to 850 °C on the preparation of biochar from rubberwood (RW) and rice husk (RH) was evaluated for power generation. However, the presence of high ash content of more than 30% in RH biochar reduced the cell performance compared to RW biochar with only less than 10%. The presence of impurities such as silica in RH biochar are detrimental for cell performance, and this might be a factor for the production of lower power density (0.07 mW/cm2) compared to a higher power density (0.5 mW/cm2) obtained from RW biochar. The presence of oxygen functional group on the surface of RW biochar might have aided its higher electrochemical performance. This study concludes that woody biochar fuels are feasible for DCFC application, and further optimization of DCFC could be investigated.