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Summary: Tailoring the intrinsic electronic structures and extrinsic hierarchical morphologies is a promising strategy to enhance the oxygen evolution reaction (OER) performance of electrocatalysts. This study presents a facile access to a crystalline/amorphous NiOx microbelt superstructure, which exhibits high electrocatalytic activity and superior durability for OER due to the in-situ surface reconstruction of the NiOx microbelt superstructure that results in a thicker outer amorphous Ni3+/Ni2+ layer facilitating OER.
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Summary: The well-controlled hollow heterostructure of Ni3S2/NiCo2S4 with rich heterointerfaces was designed, which exhibited high catalytic activity for the electrocatalytic oxygen evolution reaction (OER) due to the exposure of more active sites and enhanced electron transfer. The unique heterostructure also optimized the binding strength with intermediate species, leading to high stability during a 200-hour test.
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Runze He et al.
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Yamei Sun et al.
Summary: The research demonstrates the use of a single-atom strategy to construct high-performance electrocatalysts for hydrogen evolution reaction, showing excellent activity at all pH values and comparable performance to commercial Pt/C. Introducing single ruthenium atoms into metal-organic frameworks leads to improved binding strength for H2O and H*, enhancing HER performance.
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Emily M. Williamson et al.
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Huijie Zhou et al.
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Yingrui Tao et al.
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