کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146157 | 1497367 | 2017 | 9 صفحه PDF | دانلود رایگان |
- Reduced graphene oxide (RGO) was prepared by the reduction of graphite oxides via microwave irradiation.
- The electrochemical performance of the RGO electrodes were measured in different electrolytes.
- The effect of oxygen-containing functional groups on the supercapacitor performance was studied.
Incompletely reduced graphene (RG) was prepared by reduction of graphite oxides via microwave irradiation at the power of 800Â W and 1200Â W, respectively. Fourier transform infrared spectra and X-ray photoelectron spectroscopy analyses showed that the RG contains flourish oxygen functional groups such as carboxyl, phenol, carbonyl, and quinone groups. X-ray diffraction, scanning electron microscopy and transmission electron microscopy were employed to investigate the structure, morphology of the RG samples. The electrochemical performance of the RG electrodes were measured in 5Â M NaOH, 1Â MÂ H2SO4 and 1Â M Na2SO4 electrolytes respectively. The supercapacitor performance of oxygen-containing functional group behavior was investigated. The specific pseudocapacitance per unit atomic percentage for either carboxyl or phenol group in 1Â MÂ H2SO4 and either carbonyl and quinone group in 5Â M NaOH were obtained by galvano-statically charge/discharge measurements
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 10, 9 March 2017, Pages 7186-7194