標題: Electrophoretic Deposition of Nitrogen-Boron Co-Doped Graphene as High Performance Electrode for Next Generation Supercapacitors
作者: Kumar, Amit
Kumar, Nagesh
Singh, Pragya
Leu, Jihperng
Tseng, Tseung-Yuen
材料科學與工程學系
電子工程學系及電子研究所
Department of Materials Science and Engineering
Department of Electronics Engineering and Institute of Electronics
公開日期: 1-Jan-2018
摘要: In this study, we report the electrophoretic deposition (EPD) of nitrogen-boron co-doped graphene (NBG) synthesized via simple hydrothermal method and subsequent annealing at 750 degrees C in reducing environment. The structural, chemical-compositional and morphological investigations of the as synthesized NBG have been investigated using X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The electrochemical properties of the samples have been studied via cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) cycling and electrochemical impedance spectroscopy (EIS) in a conventional three-electrode system using 6M KOH aqueous electrolyte. The EPD grown binder free NBG electrode exhibits high specific capacitance of 217 Fg(-1) at the scan rate of 5 mVs(-1) which is about 1.2 times higher than the specific capacitance (180 Fg(-1) at 5 mVs(-1)) of pristine reduced graphene oxide synthesized via similar approach. Furthermore, this sample exhibits excellent rate capability, and similar to 103% retention after 8800 successive charge-discharge cycles at 1 Ag-1.
URI: http://dx.doi.org/10.1149/08513.0521ecst
http://hdl.handle.net/11536/155030
ISBN: 978-1-60768-841-9
ISSN: 1938-5862
DOI: 10.1149/08513.0521ecst
期刊: SELECTED PROCEEDINGS FROM THE 233RD ECS MEETING
Volume: 85
Issue: 13
起始頁: 521
結束頁: 530
Appears in Collections:Conferences Paper