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dc.contributor.authorSingla, Gouraven_US
dc.contributor.authorBhange, Siddheshwar N.en_US
dc.contributor.authorMAHAJAN, MANIen_US
dc.contributor.authorKurungot, Sreekumaren_US
dc.date.accessioned2021-03-30T09:17:15Z
dc.date.available2021-03-30T09:17:15Z
dc.date.issued2021-03en_US
dc.identifier.citationNanoscale, 13(12), 6248-6258.en_US
dc.identifier.issn2040-3364en_US
dc.identifier.issn2040-3372en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5758
dc.identifier.urihttps://doi.org/10.1039/D0NR09156Aen_US
dc.description.abstractIn this work, a strategy has been adopted to construct an architecture through the coordination of polyvinylpyrrolidone (PVP) and a monodisperse zeolitic imidazolate framework (ZIF-8), which was entwined by carbon nanotubes (CNTs) firstly, followed by a pyrolysis process to obtain the hybrid catalyst. The meticulous design of the hybrid material using CNTs to interconnect the PVP assisted ZIF-8 derived porous carbon frameworks together produces a hierarchical pore structure and dual-heteroatom (Zn/N) doping (Zn N/PC@CNT). Without further acid treatment, the hybrid material prepared after pyrolysis at 900 °C (PVP-ZIF-8@CNT-900) has been demonstrated as an efficient non-precious metal catalyst for the oxygen reduction reaction (ORR) with its superior stability compared to the commercial 20 wt% Pt/C catalyst in alkaline media. The catalyst shows better performance towards the ORR, with its more positive onset and half-wave potentials (Eonset = 0.960 V vs. RHE and E1/2 = 0.795 V vs. RHE) than the counterpart system which is free of both CNT and PVP. The high performance of the hybrid catalyst can be ascribed to the co-existence of dual-active sites with hierarchical pore structures originating from the synergistic effects between Zn/N co-doped porous carbon and CNTs. We further demonstrated the single-cell performance by using the homemade system as the cathode catalyst for the Alkaline Exchange Membrane Fuel Cell (AEMFC) system, which showed a maximum power density of 45 mW cm−2 compared to 60 mW cm−2 obtained from the 40 wt% Pt/C catalyst.en_US
dc.language.isoenen_US
dc.publisherRoyal Society of Chemistryen_US
dc.subjectChemistryen_US
dc.subject2021-MAR-WEEK4en_US
dc.subjectTOC-MAR-2021en_US
dc.subject2021en_US
dc.titleFacile synthesis of CNT interconnected PVP-ZIF-8 derived hierarchically porous Zn/N co-doped carbon frameworks for oxygen reductionen_US
dc.typeArticleen_US
dc.contributor.departmentDept. of Physicsen_US
dc.identifier.sourcetitleNanoscaleen_US
dc.publication.originofpublisherForeignen_US
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