Ionothermal synthesis of N-doped carbon supported CoMn2O4 nanoparticles as ORR catalyst in direct glucose alkaline fuel cell
| Autor: | Yang Li, Jiao Wang, TongIl Kim, Jun Ren, Xianhua Liu, HakSung Yun, Yexin Dai, JinHyok Ho |
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| Rok vydání: | 2021 |
| Předmět: |
Alkaline fuel cell
Nanocomposite Materials science Renewable Energy Sustainability and the Environment Spinel Limiting current Energy Engineering and Power Technology chemistry.chemical_element Nanoparticle 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology chemistry Chemical engineering Ionic liquid engineering 0210 nano-technology Carbon |
| Zdroj: | International Journal of Hydrogen Energy. 46:20503-20515 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2021.03.145 |
| Popis: | In this paper, CoMn2O4/NC nanocomposites were synthesized via a facile ionothermal synthesis route, and their electrocatalytic performance for oxygen reduction reaction (ORR) was investigated in a direct glucose alkaline fuel cell (DGAFC). The CoMn2O4 spinel supported on nitrogen-doped carbon was successfully synthesized with the assistance of the ionic liquid [C6mim]Cl. The nanocomposite exhibited excellent electrocatalytic activity towards ORR. Especially, CoMn2O4/NC achieved a half wave potential of 0.81 V (vs RHE) and a maximum diffusion limiting current density of 5.2 mA cm−2, that are very close to commercial Pt/C catalyst (E1/2 = 0.83 V vs RHE, Jd = 5.0 mA cm−2). In addition, the catalytic performance of CoMn2O4/NC was investigated in DGFC. The fuel cell with a CoMn2O4/NC air cathode achieved a peak power density of 23.72 W m−2, which was even superior to that with a commercial Pt/C air cathode. This work revealed that ionic liquid is a viable reaction medium for preparation of catalyst with robust activity. |
| Databáze: | OpenAIRE |
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