期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 162, 期 12, 页码 A2308-A2312出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0611512jes
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资金
- Energy Efficiency and Resources grant from Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Knowledge Economy, Korean government [20122010100140]
- KIST Institutional Program [2E25303-15-012]
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2015R1A2A2A03006633]
- National Research Foundation of Korea [2015R1A2A2A03006633] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In situ electrochemical dilatometry (ECD) was performed on Fe3O4/reduced graphene oxide (RGO) nanocomposite during galvanostatic charge and discharge tests in order to investigate the volume change of the metal-oxide/RGO nanocomposites and the role of RGO as a buffering agent in the composite. Fe3O4/RGO nanocomposite with Fe3O4 particles (2-3 nm in size) was successfully prepared through selective heterogeneous precipitation of nanosized Fe3O4 on RGO. A combined analysis of the thickness (t)-change curve of the composite electrode measured via ECD and the differential t-change curve along with the charge/discharge and differential capacity curves clearly indicated the buffering role of RGO in the composite, which exhibited excellent energy efficiency and cycling stability. (C) 2015 The Electrochemical Society.
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