Mesoporous Hollow Nitrogen-Doped Carbon Nanospheres with Embedded MnFe2 O4 /Fe Hybrid Nanoparticles as Efficient Bifunctional Oxygen Electrocatalysts in Alkaline Media

ACS Applied Materials & Interfaces
Xiuju WuChang Ming Li

Abstract

Exploring sustainable and efficient electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is necessary for the development of fuel cells and metal-air batteries. Herein, we report a bimetal Fe/Mn-N-C material composed of spinel MnFe2O4/metallic Fe hybrid nanoparticles encapsulated in N-doped mesoporous hollow carbon nanospheres as an excellent bifunctional ORR/OER electrocatalyst in alkaline electrolyte. The Fe/Mn-N-C catalyst is synthesized via pyrolysis of bimetal ion-incorporated polydopamine nanospheres and shows impressive ORR electrocatalytic activity superior to Pt/C and good OER activity close to RuO2 catalyst in alkaline environment. When tested in Zn-air battery, the Fe/Mn-N-C catalyst demonstrates excellent ultimate performance including power density, durability, and cycling. This work reports the bimetal Fe/Mn-N-C as a highly efficient bifunctional electrocatalyst and may afford useful insights into the design of sustainable transition-metal-based high-performance electrocatalysts.

References

Sep 8, 2006·Nature·Rajesh Bashyam, Piotr Zelenay
Oct 28, 2010·Journal of the American Chemical Society·Yogesh SurendranathDaniel G Nocera
Sep 25, 2012·Journal of the American Chemical Society·Jiang-Lan ShuiDi-Jia Liu
May 13, 2014·Journal of the American Chemical Society·Anqi ZhaoMartin Muhler
May 6, 2015·Chemical Reviews·Liming DaiJong-Beom Baek
Dec 15, 2015·Journal of the American Chemical Society·Ulrike I KrammPeter Bogdanoff
Apr 22, 2016·ACS Applied Materials & Interfaces·Yan ZhangYu Wang
Dec 13, 2016·Journal of the American Chemical Society·Vanessa ArmelFrédéric Jaouen
Jan 14, 2017·Chemical Society Reviews·Nian-Tzu SuenHao Ming Chen
May 31, 2017·Journal of Colloid and Interface Science·Huanhuan ZhangWeihua Hu
Aug 2, 2017·Journal of the American Chemical Society·Maolin ZhangYadong Li

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