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Thick Electrodes: Alternative‐Ultrathin Assembling of Exfoliated Manganese Dioxide and Nitrogen‐Doped Carbon Layers for High‐Mass‐Loading Supercapacitors with Outstanding Capacitance and Impressive Rate Capability (Adv. Funct. Mater. 17/2021)
Author(s) -
Jeong JaeMin,
Park Seung Hwa,
Park Hong Jun,
Jin Se Bin,
Son Seon Gyu,
Moon JongMin,
Suh Hoyoung,
Choi Bong Gill
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202170113
Subject(s) - supercapacitor , materials science , capacitance , electrode , carbon fibers , electrochemistry , nanotechnology , manganese , nitrogen , doping , chemical engineering , optoelectronics , composite material , composite number , organic chemistry , metallurgy , chemistry , engineering
In article number 2009632, Bong Gill Choi and co‐workers report alternative‐ultrathin assembling MnO 2 and nitrogen‐doped carbon nanosheets to achieve high‐performance supercapacitors. The heterostuctured and interlayer‐expanded structure of the MnO 2 /carbon enables fast and efficient electron ion transfer in a thick electrode. The resulting MnO 2 /carbon electrode shows outstanding electrochemical performance at an ultrahigh mass loading of 19.7 mg cm −2 , ultrahigh capacitance, rate capability, and energy density.