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Hollow spherical LaNiO3 supercapacitor electrode synthesized by a facile template-free method
Ist Teil von
Materials letters, 2017-08, Vol.201, p.122-124
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
•Hollow spherical LaNiO3 was synthesized by a template-free solvothermal method.•The formation of hollow structure is adjusted by proper annealing process.•Hollow spherical LaNiO3 electrode shows high capacitance and good cyclic stability.
A simple template-free solvothermal method has been developed to synthesize perovskite LaNiO3 with hollow spherical structure. Appropriate annealing of the LaNiO3 precursor is crucial to form uniform hollow structure. The obtained hollow structure significantly improves the ionic and electronic transportation leading to enhanced electrochemical performance. A high specific capacitance of 422Fg−1 has been achieved at a current density of 1Ag−1 with good cyclic stability. This facile method sets up a new synthesis route for novel perovskite oxides with hollow structure.