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Hydrothermal Synthesis of γ‐Fe 2 O 3 /rGO Hybrid Nanocomposite as an Efficient Electrocatalyst for the Oxygen Reduction Reaction
Author(s) -
Feng Qianqian,
Chen Zifeng,
Zhou Ke,
Sun Meiling,
Ji Xianran,
Zheng Hui,
Zhang Yang
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101844
Subject(s) - electrocatalyst , nanocomposite , graphene , linear sweep voltammetry , cyclic voltammetry , materials science , oxide , catalysis , chemical engineering , hydrothermal synthesis , hydrothermal circulation , inorganic chemistry , electrochemistry , nanotechnology , chemistry , metallurgy , electrode , organic chemistry , engineering
The preparation of a low‐cost, recycled and efficient electrocatalyst for oxygen reduction reaction (ORR) is highly desirable in fuel cells and metal‐air batteries. Herein, γ‐Fe 2 O 3 /reduced Graphene oxide (rGO) nanocomposite is fabricated through a simple and environmentally friendly approach and applied as a high‐performance ORR electrocatalyst. Multiple characterizations confirm the formation of γ‐Fe 2 O 3 /rGO nanocomposite and exhibit well crystal structure, microstructure, and magnetic properties. Furthermore, the cyclic voltammetry and linear sweep voltammetry measurements confirm that the γ‐Fe 2 O 3 /rGO exhibits high ORR catalytic performance for the synergistic effect. Consequently, the obtained γ‐Fe 2 O 3 /rGO might be a promising non‐precious, cheap and recycled catalyst for fuel cells and metal‐air batteries.