2021年12月
Algal carbons hydrothermally produced from Spirulina and Chlorella with the assistance of phthalaldehyde: An effective precursor for nitrogen-containing porous carbon
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
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- 巻
- 60
- 号
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.algal.2021.102502
- 出版者・発行元
- ELSEVIER
A microalgal suspension of Spirulina and Chlorella in water was hydrothermally reacted at 220 degrees C for 14 h in an autoclave; this efficiently obtained hydrothermal carbons as an aggregate of non-porous spheres several microns in diameter when phthalaldehyde was added as an auxiliary condensation reagent. The algal hydrothermal carbons contained considerable quantities of nitrogen; approximately 6 wt% originated from the protein component in microalga, which could be converted to microporous carbons with a ca. 2 wt% nitrogen-content and a specific surface area of approximately 700 m2/g, via heating from room temperature to 900 degrees C under an argon atmosphere. The algal porous carbons containing pyridinic-nitrogen derived from Chlorella exhibited high activity for electrical double-layer capacitors, with capacitances of approximately 250 F/g and 200 F/g, respectively, at current densities of 0.2 A/g and 1.0 A/g in 1 M H2SO4 in a three-electrode system under galvanostatic conditions.
- ID情報
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- DOI : 10.1016/j.algal.2021.102502
- ISSN : 2211-9264