α-Fe2O3/alkalinized C3N4 heterostructure as efficient electrocatalyst for oxygen reduction reaction

作者：Chen, Feng^*; Yao, Congcong; Qian, Junchao^*; Fan, Jiajia; Chen, Xingwang; Wu, Wenjie; Xu, Li; Liu, Qianqian; Li, Wanfei^*

来源：Journal of Materials Science, 2022, 57(3): 2012-2020.

DOI：10.1007/s10853-021-06666-8

• N-DOPED GRAPHENE
• FACILE SYNTHESIS
• WATER OXIDATION
• NANOPARTICLES
• ALPHA-FE2O3
• PERFORMANCE
• CATALYSTS
• OXIDES

A nanocomposite of alpha-Fe2O3/alkalinized C3N4 (alpha-Fe2O3/A-C3N4) electrocatalyst for oxygen reduction reaction (ORR) was synthesized by a simple in situ electrostatic adsorption of A-C3N4 and iron-based ionic liquid [Omim]FeCl4 complexation reaction using sonication treatment followed by pyrolysis process. The as-prepared alpha-Fe2O3/A-C3N4 nanocomposite can act as a superior electrocatalyst for ORR in terms of excellent ORR activity with onset potential of 0.82 V vs. reversible hydrogen electrodes (RHE), current density of 5.2 mA cm(-2) and outstanding methanol resistance. This cost-effective starting materials and simple preparation method paves the way to large-scale fabrication of low-cost and highly active noble metal-free electrocatalyst and promotes their practical applications in electrochemical power conversion and storage system. @@@ [GRAPHICS] @@@ .

• 单位
  江苏大学