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- W4295280556 abstract "Fe-N-C single-atomic metal site catalysts (SACs) have garnered tremendous interest in the oxygen reduction reaction (ORR) to substitute Pt-based catalysts in proton exchange membrane fuel cells. Nowadays, efforts have been devoted to modulating the electronic structure of metal single-atomic sites for enhancing the catalytic activities of Fe-N-C SACs, like doping heteroatoms to modulate the electronic structure of the Fe-Nx active center. However, most strategies use uncontrolled long-range interactions with heteroatoms on the Fe-Nx substrate, and thus the effect may not precisely control near-range coordinated interactions. Herein, the chlorine (Cl) is used to adjust the Fe-Nx active center via a near-range coordinated interaction. The synthesized FeN4Cl SAC likely contains the FeN4Cl active sites in the carbon matrix. The additional Fe-Cl coordination improves the instrinsic ORR activity compared with normal FeNx SAC, evidenced by density functional theory calculations, the measured ORR half-wave potential (E1/2, 0.818 V), and excellent membrane electrode assembly performance." @default.
- W4295280556 created "2022-09-12" @default.
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- W4295280556 date "2022-09-12" @default.
- W4295280556 modified "2023-10-17" @default.
- W4295280556 title "Engineering Atomic Single Metal–FeN<sub>4</sub>Cl Sites with Enhanced Oxygen-Reduction Activity for High-Performance Proton Exchange Membrane Fuel Cells" @default.
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- W4295280556 doi "https://doi.org/10.1021/acsnano.2c06459" @default.
- W4295280556 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36094168" @default.
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