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Ultra-Thin Hollow Carbon Nanospheres for Pseudocapacitive Sodium-Ion Storage

Cited 55 time in webofscience Cited 55 time in scopus
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Title
Ultra-Thin Hollow Carbon Nanospheres for Pseudocapacitive Sodium-Ion Storage
Author(s)
Yun, YS; Cho, SY; Kim, H; Jin, HJ; Kisuk Kang
Subject
asymmetric supercapacitors · hollow nanocarbon · nanostructures · pseudocapacitors · sodium-ion electrodes
Publication Date
2015-03
Journal
CHEMELECTROCHEM, v.2, no.3, pp.359 - 365
Publisher
WILEY-V C H VERLAG GMBH
Abstract
Ultra-thin hollow carbon nanospheres (UTH-CNs) are fabricated for use as anodes of asymmetric sodium ion pseudocapacitors. The similar to 3 nm thick amorphous carbon walls obtained from regenerated silk proteins as a template exhibit a well-defined porous structure suitable for reversible sodium-ion storage. The UTH-CNs show remarkable electrochemical activity with sodium via a pseudocapacitive reaction, delivering a large reversible capacity as well as superior rate performance for more than 1000 cycles. The pseudocapacitors based on UTH-CNs exhibit a capacitance of 186 Fg(-1), a specific energy of 43 Wh kg(-1) and a power density of 10 kW kg(-1). This represents the highest value yet reported for asymmetric sodium-ion storage pseudocapacitors
URI
https://pr.ibs.re.kr/handle/8788114/2105
DOI
10.1002/celc.201402359
ISSN
2196-0216
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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