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Paper   IPM / CMNL / 14897
Condensed Matter National Laboratory
  Title:   Liquid-Crystal-Mediated Self-Assembly of Porous a-Fe2O3 Nanorods on PEDOT:PSS-Functionalized Graphene as a Flexible Ternary Architecture for Capacitive Energy Storage
  Author(s): 
1.  M Monirul Islam
2.  Dean Cardillo
3.  Taslima Akhter
4.  Seyed Hamed Aboutalebi
5.  Hua Kun Liu
6.  Konstantin Konstantinov
7.  Shi Xue Dou
  Status:   Published
  Journal: Part. Part. Syst. Char.
  Vol.:  33
  Year:  2016
  Pages:   27-37
  Publisher(s):   Wiley Online Library
  Supported by:  IPM
  Abstract:
A novel aqueous-based self-assembly approach to a composite of iron oxide nanorods on conductive-polymer (CP)-functionalized, ultralarge graphene oxide (GO) liquid crystals (LCs) is demonstrated here for the fabrication of a flexible hybrid material for charge capacitive application. Uniform decoration of a-Fe2O3 nanorods on a poly(3,4-ethylene-dioxythiophene): poly(styrenesulfonate) (PEDOT:PSS)-functionalized, ultralarge GO scaffold results in a 3D interconnected layer-by-layer (LBL) architecture. This advanced interpenetrating network of ternary components is lightweight, foldable, and possesses highly conductive pathways for facile ion transportation and charge storage, making it promising for high-performance energy-storage applications. Having such structural merits and good synergistic effects, the flexible architecture exhibits a high specific discharge capacitance of 875 F g^-1 and excellent volumetric specific capacitance of 868 F cm^-3 at 5 mV s^-1, as well as a promising energy density of 118 W h kg^-1 (at 0.5 A g^-1) and promising cyclability, with capacity retention of 100

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