Cited 0 time in webofscience Cited 0 time in scopus

N-carbon from waste tea as efficient anode electrode material in lithium ion batteries

Title
N-carbon from waste tea as efficient anode electrode material in lithium ion batteries
Authors
Chaudhari, Nitin KadubaBhattacharjya, DhrubajyotiKim, HernYu, Jong SungChung, Wook Jin
DGIST Authors
Yu, Jong Sung
Issue Date
2017
Citation
Journal of Nanoscience and Nanotechnology, 17(3), 1838-1846
Type
Article
Article Type
Article
Keywords
AnodesCapacitive PerformanceCarbonCharge-Discharge ProcessElectric BatteriesElectric DischargesElectrodesHeteroatomsHigh Reversible CapacitiesIonsLithiumLithium-Ion BatteriesLithium-Ion BatteryLithium AlloysLithium CompoundsMesoporous MaterialsMesoporous StructuresNano-Structured Carbonsoffice BuildingsPyrolysisPyrolysis TemperatureSecondary BatteriesSynthesized CarbonTeaWasteWastes
ISSN
1533-4880
Abstract
Nanostructured carbon having nitrogen as heteroatom was synthesized from waste tea, a cheap and abundant waste generated around the world. The synthesis process is simple, environmental being one-step pyrolysis in inert atmosphere. The carbon synthesized at 800°C (WTC-800) has mesh like morphology with abundantmesopores. The BET analysis reveals mesoporous nature with specific surface area of 384 m2g-1. The porous morphology was found to diminish with increase in pyrolysis temperature. XPS analysis reveals the presence of 1.8-2.5% N-content with predominantly graphitic-N. As-synthesized carbons are investigated as anode material for Li-ion battery. The mesoporous structure and N doping endowed WTC-800 with high reversible capacity up to 567 mAhg-1 at 0.1 C rate, much higher than commercial graphite based anode. Furthermore, the charge discharge process of WTC-800 is not only stable and reversible at high current rate (49% retention at 1 C rate), but also stable up to 100 cycles (78% retention). Relation of capacitive performance with surface area, porosity and N doping is studied and explained promptly. Combined with easy synthesis method, mesoporous structure, inherent N content with abundantly available waste precursor made this carbon material as suitable candidate for electrode materials in Li ion battery applications. Copyright © 2017 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2132
DOI
10.1166/jnn.2017.12933
Publisher
American Scientific Publishers
Related Researcher
  • Author Yu, Jong-Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE