A new route for preparation of hydrochars from rice husk.
In the present work, a green and sustainable route for preparation of hydrochars from sulfuric acid hydrolysis solution of rice husk under low temperature and atmospheric pressure was described. This route was achieved with the catalysis of sulfuric acid. The sphere-like carbon materials with regular size of about 500 nm were obtained at 95 degrees C for 6h when the acid concentration was 42% and 52%. The morphology of the hydrochars changed with sulfuric acid concentration increased. The surface of the materials contained a large number of functional groups. Furthermore, the localized graphitic nature of the materials was proved by X-ray diffraction pattern. High surface area porous carbons could be prepared from the hydrochars after activation, and they exhibited good electrochemical performance.
Wang
Lili
L
College of Chemistry, Jilin University, No. 2699, Qianjin Street, Changchun 130012, PR China.
Guo
Yupeng
Y
Zhu
Yanchao
Y
Li
Ying
Y
Qu
Yuning
Y
Rong
Chunguang
C
Ma
Xiaoyu
X
Wang
Zichen
Z
D001709:Biotechnology / Q000379:methods*; D002606:Charcoal / Q000138:chemical synthesis*; D012275:Oryza / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013464:Sulfuric Acids / Q000737:chemistry; D013696:Temperature; D013997:Time Factors; D014866:Waste Products / Q000032:analysis*; D014961:X-Ray Diffraction
D013464:Sulfuric Acids; D014866:Waste Products; C540010:biochar; D002606:Charcoal; C033158:sulfuric acid