Electrochemical performance of various activated carbon‑multi‑walled carbon nanotubes symmetric supercapacitor electrodes in aqueous electrolytes
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 32권 / 6호
ㆍ저자명 : Dhanapal Thillaikkarasi, Srinivasan Karthikeyan, Rajendran Ramesh, Prabhu Sengodan, Dhamodaran Kavitha, Malarvizhi Muthubalasubramanian
ㆍ저자명 : Dhanapal Thillaikkarasi, Srinivasan Karthikeyan, Rajendran Ramesh, Prabhu Sengodan, Dhamodaran Kavitha, Malarvizhi Muthubalasubramanian
목차
Abstract1 Introduction
2 Experimental section
2.1 Materials
2.2 Synthesis of activated carbon
2.3 Preparation of multi-walled carbon nanotubes
2.4 Preparation of stainless steel (SS) current collector electrode
2.5 Preparation of AC-AC and MWCNTs-MWCNTs electrode
2.6 Preparation of AC-MWCNTs working electrode
2.7 Characterization of the electroactive materials
2.8 Electrochemical measurement
3 Results and discussion
3.1 XRD, XPS and Raman spectroscopic analysis of activated carbon and MWCNTs
3.2 Surface morphology
4 Conclusion
Acknowledgements
References
영어 초록
An electrical double-layer capacitor is fabricated with biomass-derived activated carbon (AC) and multi-walled carbon nanotubes (MWCNTs), which are synthesized from Pongamia pinnata fruit shell and its seed oil, respectively. The activated carbon is produced by the chemical activation process at varying carbonization temperatures from 600 to 900 °C for 5 h at a rate of 10 min in an N2 atmosphere. The surface area of activated carbon and MWCNTs is 1170 m2 g− 1 and 216 m2 g− 1, respectively. The total pore volumes of activated carbon and MWCNTs are 1.51 cm3 g− 1 and 0.5907 cm3 g− 1, respectively. The as-prepared AC and MWCNTs are characterized by surface area analysis Brunner–Emmett–Teller method (BET), X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopic analysis, field emission scanning electron microscopy, high-resolution transmission electron microscopy and energy-dispersive X-ray spectroscopy. The electrochemical performances of AC-AC, MWCNTs-MWCNTs and AC-MWCNTs (25:75) symmetric electrodes are studied by cyclic voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy. The AC-MWCNTs (25:75) single electrode performance is also studied in two different electrolytes, such as 0.5 M Na2SO4 and 0.5 M H2SO4. The fabricated AC-MWCNTs (25:75) symmetric supercapacitor cell exhibits excellent electrochemical performance in 0.5 M Na2SO4. It shows a specific capacitance of 55.51 Fg− 1, energy density 4.852 Wh Kg− 1 and power density of 199.18 W Kg− 1 at a current density of 1 Ag− 1 in the voltage window of 0–1.8 V. The AC-AC and AC-MWCNTs (25:75) symmetric supercapacitor electrodes show outstanding performance.참고 자료
없음"Carbon letters"의 다른 논문
Efficient hydrogen generation from the NaBH4 methanolys..9페이지
Copper nanoparticles supported on biocarbon film from S..16페이지
Optical properties of reduced graphene oxide nanodots p..10페이지
Influence of graphite platelets with and without SiC on..8페이지
Waste plastic‑derived FWCNT‑NiMgAl composite for superc..17페이지
Enhanced electrosorption of NaCl and nickel(II) in capa..10페이지
Facile diazonium modification of pomegranate peel bioch..11페이지
Effect of anion species on preparation and properties o..12페이지
Preparation of environmental‑friendly N‑rich chitin‑der..7페이지
Facile method to enhance the mechanical interfacial str..10페이지