dc.creator | Shah S.S.A., Najam T., Javed M.S., Rahman M.M., Tsiakaras P. | en |
dc.date.accessioned | 2023-01-31T09:55:22Z | |
dc.date.available | 2023-01-31T09:55:22Z | |
dc.date.issued | 2021 | |
dc.identifier | 10.1021/acsami.1c03477 | |
dc.identifier.issn | 19448244 | |
dc.identifier.uri | http://hdl.handle.net/11615/78918 | |
dc.description.abstract | Fe-N-C-based electrocatalysts have been developed as an encouraging substitute compared to their expensive Pt-containing equivalents for the oxygen reduction reaction (ORR). However, they still face major durability challenges from the in- situ production of Fenton radicals. Therefore, the synthesis of Fe-free ORR catalysts is among the emerging concerns. Herein, we have precisely applied a multistep heating strategy to produce mesoporous N-doped carbon nanostructures with Mn-/Co-Nx dual moieties from mixed-metal zeolitic imidazolate frameworks (ZIFs). It is found that their unique structure, with dual-metallic active sites, not only offers a high electrochemical performance for the ORR (E1/2 = 0.83 V vs reversible hydrogen electrode (RHE) in acid media), but also enhances the operational durability of the catalyst after 20 000 cycles with 97% of retention and very low H2O2 production (<5%) in 0.1 M HClO4. In addition, the catalyst performs well toward the ORR also in alkaline solution (exhibiting E1/2 = 0.90 V and 30 000 cyclic stability). © 2021 American Chemical Society. | en |
dc.language.iso | en | en |
dc.source | ACS Applied Materials and Interfaces | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106383198&doi=10.1021%2facsami.1c03477&partnerID=40&md5=a18c95589f403ce82e4075ed88d795ba | |
dc.subject | Catalyst activity | en |
dc.subject | Doping (additives) | en |
dc.subject | Durability | en |
dc.subject | Electrocatalysts | en |
dc.subject | Electrolytic reduction | en |
dc.subject | Hydrogen peroxide | en |
dc.subject | Oxygen | en |
dc.subject | Alkaline solutions | en |
dc.subject | Cyclic stability | en |
dc.subject | Electrochemical performance | en |
dc.subject | Heating strategy | en |
dc.subject | In-situ production | en |
dc.subject | Oxygen Reduction | en |
dc.subject | Reversible hydrogen electrodes | en |
dc.subject | Zeolitic imidazolate frameworks | en |
dc.subject | Oxygen reduction reaction | en |
dc.subject | American Chemical Society | en |
dc.title | Novel Mn-/Co-N x Moieties Captured in N-Doped Carbon Nanotubes for Enhanced Oxygen Reduction Activity and Stability in Acidic and Alkaline Media | en |
dc.type | journalArticle | en |