Binding Fe2O3 nanoparticles in polydopamine-reduced graphene as negative electrode materials for high-performance asymmetric supercapacitors

  • Jinjun Tian
  • Yan Xue
  • Xinping Yu
  • Yuanchao Pei
  • Hucheng ZhangEmail author
  • Jianji WangEmail author
Research Paper


Ternary composite with immobilization of Fe2O3 nanoparticles (NPs) onto porous polydopamine-reduced graphene oxide framework, abbreviated as Fe2O3@PDA-RGO, was fabricated via a simple, scalable and cost-efficient hydrothermal reaction. The as-prepared 3D Fe2O3@PDA-RGO nanocomposite provides a specific surface area of 119.9 m2 g-1 on account of the well-dispersed Fe2O3 NPs (~35 nm) onto the PDA-RGO sheets as spacer. When applied as a special faradic electrode material in negative potential region, Fe2O3@PDA-RGO can offer 169 mA h g-1 (609 F g−1) at 1 A g-1. The fabricated AC//Fe2O3@PDA-RGO asymmetric supercapacitor (ASC) delivers an energy density of 35.8 W h kg-1 (0.94 mW h cm-3) at 800 W kg-1 (21 mW cm-3) and an outstanding cyclic stability (75.7% capacity retention after 10,000 cycles). The good performance of Fe2O3@PDA-RGO in single-electrode and ASC manifests the potential the ternary composite in energy storage devices.


Fe2O3 nanoparticles Polydopamine Negative electrode Asymmetric supercapacitor Energy storage 


Funding information

This work was supported by the National Natural Science Foundation of China (Grant No. 21573059, 21473050 and U1704251).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11051_2019_4705_MOESM1_ESM.docx (564 kb)
ESM 1 (DOCX 563 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiangChina
  2. 2.School of Biological and Chemical EngineeringNanyang Institute of TechnologyNanyangChina

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