Articles with "copt" as a keyword



Space Confinement to Regulate Ultrafine CoPt Nanoalloy for Reliable Oxygen Reduction Reaction Catalyst in PEMFC.

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Published in 2023 at "Advanced science"

DOI: 10.1002/advs.202206062

Abstract: A Co-based zeolitic imidazolate framework (ZIF-67) derived catalyst with ultrafine CoPt nanoalloy particles is designed via a two-step space confinement method, to achieve a robust oxygen reduction reaction (ORR) performance for proton exchange membrane fuel… read more here.

Keywords: copt nanoalloy; oxygen reduction; space confinement; copt ... See more keywords

Enhanced coercivity in non-equiatomic CoPt-Cu nanoparticles

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2018.09.081

Abstract: Abstract Co30Cu10Pt60 nanoparticles were prepared by a simplified polyol process devoid of any surfactants or capping agents. Thermo-magnetic analysis showed that the addition of 10 at.% Cu reduces the Curie temperature of Co40Pt60 from 492 °C to… read more here.

Keywords: non equiatomic; copt; enhanced coercivity; temperature ... See more keywords
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Primitive exchange coupling in CoPt/MnN layered structures: Exchange coupling established during deposition

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Published in 2021 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2021.168331

Abstract: Abstract Bilayer and trilayer films with ferromagnetic CoPt and antiferromagnetic MnN constituent layers have been prepared by facing-target magnetron sputtering with a 6 Oe magnetic field applied to an in-plane direction of the growing film.… read more here.

Keywords: coupling established; exchange; copt; primitive exchange ... See more keywords
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Characterization of the Copper Transporters from Lotus spp. and Their Involvement under Flooding Conditions

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Published in 2019 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms20133136

Abstract: Forage legumes are an important livestock nutritional resource, which includes essential metals, such as copper. Particularly, the high prevalence of hypocuprosis causes important economic losses to Argentinian cattle agrosystems. Copper deficiency in cattle is partially… read more here.

Keywords: lotus spp; copper; copper transporters; copt ... See more keywords
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Co-Existence of Atomic Pt and CoPt Nanoclusters on Co/SnOx Mix-Oxide Demonstrates an Ultra-High-Performance Oxygen Reduction Reaction Activity

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Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12162824

Abstract: An effective approach for increasing the Noble metal-utilization by decorating the atomic Pt clusters (1 wt.%) on the CoO2@SnPd2 nanoparticle (denoted as CSPP) for oxygen reduction reaction (ORR) is demonstrated in this study. For the… read more here.

Keywords: oxygen reduction; reduction reaction; copt;