Journal
ACS OMEGA
Volume 6, Issue 42, Pages 27994-28003Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c03863
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Funding
- Recruitment Program of Guangdong [2016ZT06C322]
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Graphene oxide/lanthanum titanate fiber composites prepared through a hydrothermal method showed high specific capacitance and energy density in a 1M H2SO4 and 10wt% sucrose aqueous solution electrolyte. The composites could be promising materials for energy storage applications.
A series of graphene oxide (GO)/lanthanum titanate (La2Ti2O7, LTO) fiber composites were prepared through a hydrothermal method. The LTO fibers were homogeneously dispersed between the GO sheets. The structure and micromorphology of the GO/LTO composites were systematically studied. The composite exhibited a high specific capacitance of 900.6 F g(-1) at a current density of 1 A g(-1) in the 1 M H2SO4 and 10 wt % sucrose aqueous solution as the electrolyte. With the extended potential window of 1.8 V, the fabricated asymmetric supercapacitor device delivered a maximum energy density of 94.0 Wh kg(-1) at a power density of 750.1 W kg(-1). The GO/LTO composites could be promising materials for energy storage.
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