Preparation and characterization of highly mesoporous activated short carbon fibers from kenaf precursors
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In this study, activated carbon with well-developed mesopores was fabricated using kenaf short fibers as a representative biomass. Concentrated phosphoric acid was selected as an activation agent to create highly developed porous structures, and pore development was observed to occur in relation to the weight ratio of phosphoric acid and kenaf. The pore characteristics of the kenaf-based activated carbon were determined using the N2/77K adsorption isotherm, and its microcrystalline structure was analyzed using X-ray diffraction. The highest specific surface area (1570 m2/g) was observed when the weight ratio of phosphoric acid to kenaf was 3:1, and the highest mesopore fraction (74%) was observed at 4:1. The carbonization yield was 45–35%, which is higher than that of commercial activated carbon. The production of porous carbon material by this method offers high potential for application because it can be controlled over a wide range of average pore diameter from 2.48 to 5.44 nm.
KeywordsActivation Kenaf Mesopore fraction Specific surface area
This study was supported by the “Regional Main Industry of Korea (Project no. P0003187)” funded by the Korea Institute for Advancement of Technology (KIAT) and the Ministry of SMEs and Startups, Republic of Korea. This research was supported by the “Activated Carbon Total Solution Project”, funded by Jeonju City and Jeonbuk province, Republic of Korea.
- 8.Johnson PJ, Setsuda DJ, Williams RS (1999) Activated carbon for automotive applications. In: Burchell TD (ed) Carbon materials for advanced technologies, vol 235. Elsevier, OxfordGoogle Scholar
- 10.Tan XF, Liu SB, Liu YG, Gu YL, Zeng GM, Hu XJ, Wang X, Liu SH, Jiang LH (2017) Biochar as potential sustainable precursors for activated carbon production: multiple applications in environmental protection and energy storage. Bioresour Technol 227:359. https://doi.org/10.1016/j.biortech.2016.12.083 CrossRefGoogle Scholar
- 12.Baek J, Lee HM, Roh JS, Lee HS, Kang HS, Kim BJ (2016) Studies on preparation and applications of polymeric precursor-based activated hard carbons: I. Activation mechanism and microstructure analyses. Micropor Mesopor Mater 219:258. https://doi.org/10.1016/j.micromeso.2015.07.003 CrossRefGoogle Scholar
- 15.Lee HM, Heo YJ, An KH, Jung SC, Chung DC, Park SJ, Kim BJ (2018) A study on optimal pore range for high pressure hydrogen storage behaviors by porous hard carbon materials prepared from a polymeric precursor. Int J Hydrogen Energy 43:5894. https://doi.org/10.1016/j.ijhydene.2017.09.085 CrossRefGoogle Scholar
- 17.Baek J, Shin HS, Chung DC, Kim BJ (2017) Studies on the correlation between nanostructure and pore development of polymeric precursor-based activated hard carbons: II. Transmission electron microscopy and Raman spectroscopy studies. J Ind Eng Chem 54:324. https://doi.org/10.1016/j.jiec.2017.06.007 CrossRefGoogle Scholar
- 19.Xia C, Shi SQ (2016) Self-Activatin process to fabricate activated carbon from kenaf. Wood Fiber Sci 48:62Google Scholar
- 20.Press WH, Teukolsky SA, Vetterling WT, Flannery BP (1992) Savitzky–Golay smoothing filters, vol 644. Cambridge University Press, New YorkGoogle Scholar
- 22.Scherrer P, Gottingen NGW (1918) Determination of the size and internal structure of colloidal particles using X-rays. Nachr Ges Wiss Göttingen 2:98Google Scholar
- 29.Rouquerol F, Rouquerol J, Sing K (1999) Adsorption by powders and porous solids principles, methodology and applications. Academic Press, San DiegoGoogle Scholar