Metallo-deuteroporphyrins derived multi-layered hollow carbon spheres electrocatalysts for highly efficient oxygen reduction reaction
- 19 March 2021
- journal article
- research article
- Published by IOP Publishing in Nanotechnology
- Vol. 32 (23), 235401
- https://doi.org/10.1088/1361-6528/abeb9d
Abstract
The development of low-cost, highly efficient and stable non-precious metal electrocatalyst for the oxygen reduction reaction (ORR) substituting Pt has attracted much attention. Herein, we developed a promising structural platform for the fabrication of carbon nanospheres functionalized with hollow nanostructures of M-NHCS (M = Fe, Co and Mn) based on metallo-deuteroporphyrins (MDP). Benefited from the multi-layered active sites and hollow substrate with more exposed active surface area, convenient channels for the transport of electrons, the resulting Fe-NHCS electrocatalysts exhibit enhanced electrocatalytic performance in ORR with an onset potential of 0.90 V (versus RHE), and a high selectivity in the direct 4-electron pathway. The Fe-NHCS electrocatalysts also show a good methanol tolerance superior to Pt/C catalysts and an extremely high stability with only 13.0 mV negative after 5000 cycles in alkaline media. Experiments have verified that maintaining the multi-layered Fe−N−C active sites and hollow substrate were essential to deliver the high performance for ORR. The work opens new avenues for utilizing MDP-based materials in future energy conversion applications.Keywords
Funding Information
- The National Natural Science Foundation of China (21701077)
- Talent Project of Revitalizing Liaoning (XLYC1807114)
This publication has 53 references indexed in Scilit:
- Efficient quantum dots anchored nanocomposite for highly active ORR/OER electrocatalyst of advanced metal-air batteriesNano Energy, 2018
- Energy security and renewable energy policy analysis of PakistanRenewable and Sustainable Energy Reviews, 2018
- Households energy consumption and transition toward cleaner energy sourcesEnergy Policy, 2018
- Counting energy poverty in Spain between 2004 and 2015Energy Policy, 2018
- Unlocking the door to highly active ORR catalysts for PEMFC applications: polyhedron-engineered Pt-based nanocrystalsEnergy & Environmental Science, 2017
- Screen printed bifunctional gas diffusion electrodes for aqueous metal-air batteries: Combining the best of the catalyst and binder worldElectrochimica Acta, 2017
- Three-dimensional graphene network supported ultrathin CeO2 nanoflakes for oxygen reduction reaction and rechargeable metal-air batteriesElectrochimica Acta, 2017
- Embedding Pt Nanocrystals in N-Doped Porous Carbon/Carbon Nanotubes toward Highly Stable Electrocatalysts for the Oxygen Reduction ReactionACS Catalysis, 2015
- Advances and challenges for flexible energy storage and conversion devices and systemsEnergy & Environmental Science, 2014
- High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and CobaltScience, 2011