A facile and low-cost synthesis of MnOx/Mn2NNC nanohybrid as an advanced oxygen reduction electrocatalyst. (August 2018)

• Record Type: Journal Article
• Authors: Liu, Kun; Li, Jun; Li, Junhua; Wang, Jin; Zhao, Dan; Jiang, Jianbo; Qian, Dong
• Is Part Of: Materials research bulletin. Volume 104(2018)
• Page Start: 60
• Page End: 64
• Publication Date: 2018-08
• Subjects: A. Nitrides -- A. Oxides -- A. Nanostructures -- D. Catalytic properties -- D. Electrochemical properties; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2018.04.004
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: We demonstrate a facile route to fabricate a novel MnO x /Mn2 NNC hybrid. MnO x /Mn2 NNC displays an excellent ORR activity. MnO x /Mn2 NNC affords overwhelmingly better durability than 20 wt% Pt/C. Abstract: We demonstrate a one-step, low-cost and easily scalable pyrolysis route to fabricate a novel MnO x /Mn2 NNC nanohybrid with MnO x /Mn2 N nanoparticles (20–30 nm) anchored on the wrinkled N-doped carbon nanosheets (denoted as NC). MnO x /Mn2 NNC displays a remarkably higher ORR activity than that of NC, suggesting that the MnO x /Mn2 N nanoparticles play an important role in enhancing the ORR activity. Furthermore, MnO x /Mn2 NNC exhibits overwhelmingly better durability than commercial 20 wt% Pt/C, to be specific, 93.7% current retention after continuous operation for 24, 000 s, while 59.7% for 20 wt% Pt/C.