Publications by authors named "Jiakun Wu"

Article Synopsis
  • - The study examined CrAlSiN coatings with varying nitrogen content (42 to 54 at. %) and tested their microstructure and oxidation resistance at high temperatures (700 or 900 °C).
  • At lower nitrogen levels (42-45 at. %), the coatings displayed a hybrid amorphous/nanocrystalline structure, while higher nitrogen contents (above 52 at. %) resulted in a columnar structure dominated by Cr(Al)N.
  • The optimal nitrogen content of around 52 at. % provided the best oxidation resistance, characterized by a stable AlO-rich monolayer, while lower nitrogen coatings formed thicker CrO layers and showed elemental segregation after high-temperature exposure.
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Surface modification of Cu current collectors (CCs) is proven to be an effective method for protecting lithium metal anodes. However, few studies have focused on the quality and efficiency of modification layers. Herein, a novel home-made filtered cathode vacuum arc (FCVA) co-deposition system with high modification efficiency, good repeatability and environmental friendliness is proposed to realize the wide range regulation of film composition, structure and performance.

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Conventional material processing approaches often achieve strengthening of materials at the cost of reduced ductility. Here, we show that high-pressure and high-temperature (HPHT) treatment can help overcome the strength-ductility trade-off in structural materials. We report an initially strong-yet-brittle eutectic high entropy alloy simultaneously doubling its strength to 1150 MPa and its tensile ductility to 36% after the HPHT treatment.

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Uranium extraction from seawater is a potential technique that will change the world. Adsorption capacity, selectivity, and antibacterial ability for high-performance uranium adsorbents remain the major challenges. In this study, a dual-ligand zeolitic imidazolate framework 8 (ZIF-8) decorated with cyano groups (ZIF-8-CN) is prepared via a facile blend strategy at room temperature.

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Photocatalytic solar-to-fuel conversion has been of great interest in recent years. Nevertheless, the rational structural manipulation of photocatalysts toward an efficient H2 evolution reaction (HER) is still under-developed. In this work, by employing CdS nanowires as the growth substrate, unique one-dimensional (1D) CdS@Cd0.

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Development of noble-metal-free photocatalysts for efficient H2 production from sunlight-driven water-splitting has aroused great interest in recent years. Herein, unique Cd0.5Zn0.

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Development of noble-metal-free photocatalysts for highly efficient sunlight-driven water splitting is of great interest. Nevertheless, for the photocatalytic H evolution reaction (HER), the integrated regulation study on morphology, electronic band structures, and surface active sites of catalyst is still minimal up to now. Herein, well-defined 1D Cd Zn S@O-MoS /NiO hybrid nanostructures with enhanced activity and stability for photocatalytic HER are prepared.

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