Details

Autor(en) / Beteiligte

• Peng, Chen
• Yanyue, Liu
• Yuanyuan, Jiao
• Haiyan, Wang
• Zijiong, Li

Titel

Synthesis of LaMnO3-reduced graphene oxide or Sr composite and their application in electrochemical properties

Ist Teil von

• Materials research express, 2020-02, Vol.7 (2), p.025023

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2020

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Perovskite structural metal oxides as electrode materials present promising and potential properties due to excellent storage characteristics. Herein, series of perovskite type LaMnO3 nanopowders were synthesized by the 'sol-gel' method with a heat treatment at different temperatures (700 °C-900 °C) for different times. The morphology characterization, structures and electrochemical performances were investigated. The preferable sample for electrochemical energy storage device can be obtained at 900 °C with 2 h annealing. Furthermore, to improve the properties of the electrode materials, the samples were combined and rectified with reduced graphene oxide (rGO) and strontium (Sr), respectively. The results indicate that the rGO/Sr-doped LaMnO3 oxide materials have excellent electrochemical properties. These findings are beneficial for the selection and preparation of electrode materials.