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- W3048454067 abstract "The oxygen reduction reaction (ORR) is central in carbon-neutral energy devices. While platinum group materials have shown high activities for ORR, their practical uses are hampered by concerns over deactivation, slow kinetics, exorbitant cost, and scarce nature reserve. The low cost yet high tunability of metal-organic frameworks (MOFs) provide a unique platform for tailoring their characteristic properties as new electrocatalysts. Herein, we report a new concept of design and present stable Zr-chain-based MOFs as efficient electrocatalysts for ORR. The strategy is based on using Zr-chains to promote high chemical and redox stability and, more importantly, tailor the immobilization and packing of redox active-sites at a density that is ideal to improve the reaction kinetics. The obtained new electrocatalyst, PCN-226, thereby shows high ORR activity. We further demonstrate PCN-226 as a promising electrode material for practical applications in rechargeable Zn-air batteries, with a high peak power density of 133 mW cm-2. Being one of the very few electrocatalytic MOFs for ORR, this work provides a new concept by designing chain-based structures to enrich the diversity of efficient electrocatalysts and MOFs." @default.
- W3048454067 created "2020-08-18" @default.
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- W3048454067 date "2020-08-10" @default.
- W3048454067 modified "2023-10-17" @default.
- W3048454067 title "A Porphyrinic Zirconium Metal–Organic Framework for Oxygen Reduction Reaction: Tailoring the Spacing between Active-Sites through Chain-Based Inorganic Building Units" @default.
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- W3048454067 doi "https://doi.org/10.1021/jacs.0c06329" @default.
- W3048454067 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7498152" @default.
- W3048454067 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32786758" @default.
- W3048454067 hasPublicationYear "2020" @default.
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