A facile and low-cost synthesis of MnOx/Mn2N-N-C nanohybrid as an advanced oxygen reduction electrocatalyst

作者：Liu, Kun; Li, Jun; Li, Junhua; Wang, Jin; Zhao, Dan; Jiang, Jianbo; Qian, Dong^*

来源：Materials Research Bulletin, 2018, 104: 60-64.

DOI：10.1016/j.materresbull.2018.04.004

• A. Nitrides
• A. Oxides
• A. Nanostructures
• D. Catalytic properties
• D. Electrochemical properties

We demonstrate a one-step, low-cost and easily scalable pyrolysis route to fabricate a novel MnOX/Mn2N-N-C nanohybrid with MnOX/Mn2N nanoparticles (20-30 nm) anchored on the wrinkled N-doped carbon nanosheets (denoted as N-C). MnOMn2N-N-C displays a remarkably higher ORR activity than that of N-C, suggesting that the MnO,/Mn2N nanoparticles play an important role in enhancing the ORR activity. Furthermore, MnOx/ Mn2N-N-C 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.

• 出版日期2018-8
• 单位吉首大学; 中南大学; 衡阳师范学院