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A hollow nanoreactor suitable for the cultivation of Ni-nanocrystals was developed through a distinct seed-engineering stratagem, which involved the assembly of a catalytically active Au/Pd-heterojunction-nanocrystal inside the hollow silica nanoshell. The resulting hollow nanoreactor demonstrated a targeted performance in the cavity-confined growth of the catalytic Ni nanocrystal.
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http://dx.doi.org/10.1039/c4cc07306a | DOI Listing |
Angew Chem Int Ed Engl
August 2025
State Key Laboratory of Silicate Materials for Architecture & School of Chemistry, Chemical Engineering and Life Science & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070,
Biological membrane-enclosed organelles, in which cascade reactions promoted by multiple enzymes occur, have inspired widespread interest in the design of spatially confined nanoreactors for tandem catalytic transformations. Because of their accessible compartmentalized environments and large framework diversity, hollow metal-organic frameworks (H-MOFs) are ideal platforms for the development of new multi-functionalized nanoreactors. However, simple methodologies for fabrication of hollow MOFs, which possess functionalities that are precisely localized and encapsulated of active sites like those found in biological membrane-enclosed organelles, is a considerable challenge.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2025
Department of Chemical Engineering, College of Engineering, Integrated Engineering Major, Kyung Hee University, Yongin 17140, Republic of Korea. Electronic address:
Hollow nanoreactors, with their void-confinement effects and stable carrier properties, hold great promise for catalytic applications. In this study, we present a green and versatile method to confine PdAg alloy nanoparticles (NPs) within halloysite nanotubes (HNTs), creating highly efficient catalysts (PdAg@HNTs-OH) for the reduction of toxic pollutants like 4-nitrophenol (4-NP), Methyl Orange (MO), and Congo Red (CR). PdAg NPs are selectively anchored to the inner surface of HNTs, with the exclusively lumen-confined PdAg@HNTs-OH exhibiting superior activity compared to dual-surface-loaded counterparts (d-PdAg@HNTs), directly evidencing the critical role of void confinement.
View Article and Find Full Text PDFACS Sens
August 2025
Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450001, P. R. China.
Triethylamine (TEA), a strong irritating and combustible gas, is extremely dangerous to both human health and the surrounding environment. However, developing TEA sensors with high sensitivity and fast response remains a great challenge. Herein, we report hollow nanoreactors to optimize the TEA oxidation route for boosted sensing performance.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2025
College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China. Electronic address:
Organic materials have garnered increasing attention in aqueous zinc-ion batteries (AZIBs) owing to their structural tunability, diversity, and sustainability. Nevertheless, their practical applications in AZIBs cathode remain hindered by challenges including low capacity, short cycle lifespan, and ambiguous ion insertion mechanisms. Herein, we strategically eliminate intramolecular hydrogen bonds in quinone-based organic molecule indanthrone through oxidation method, transforming it into multi-active-site quinone-imine compound oxidized indanthrone (oIDT).
View Article and Find Full Text PDFNano Lett
August 2025
Department of Geosciences, University of Padova, Via Gradenigo 6, 35131 Padova, Italy.
Electrostatically stabilized binary hybrids comprising TiO nanotubes and FeO nanoparticles were self-assembled and investigated as precursors for a KFTO material. Presynthetic nanohybridization is a way to organize the components, with the caveat that the mere nanomaterial combination cannot grant a high degree of control due to their general susceptibility to aggregation, resulting in masses with poor spatial order. Various hybridization conditions were explored, and the effects of the experimental parameters were investigated in detail, considering KCl concentration, Fe/Ti ratio, and hydrothermal treatment temperature.
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