Mesoporous silica grafted with a tertiary amine was used as a basic nanocatalyst to promote in confined medium the enantioselective cascade rearrangement of enediynes based on the phenomenon of memory of chirality; the multi-substrates recyclable catalytic reagent could easily be recovered by simple filtration, and reused without any decrease in activity even when changing the solvent.
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http://dx.doi.org/10.1039/c1cc10551e | DOI Listing |
Adv Mater
December 2024
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
Small
December 2024
School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
The solar-driven catalytic recycling of plastics has recently emerged as a new frontier in industry. Nevertheless, its large-scale application requires the catalysts being capable of the strong absorption of visible and near-infrared light, strengthened photothermal efficiency, high activity and selective toward target product, enhanced stability, as well as easy separation from the products. In this work, magnetic Ni-MnO nanocatalyst (MN/C) is synthesized via the pyrolysis of metal-organic framework (MOF) for the photothermal catalytic recycling of polyethylene terephthalate (PET) to bis(2-hydroxyethyl) terephthalate (BHET).
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
National Local Joint Engineering Research Center for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Batteries Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China. Electronic address:
Achieving efficient catalytic conversion of lithium polysulfides is a key way to improve kinetics in lithium-sulfur (Li-S) batteries. However, due to the limited nature of the catalyst interface, it is difficult to achieve a high conversion rate of LiPSs in one step. A novel heterogeneous dual-chamber core-shell nanocatalyst (CoSe-NiSe@PC) is described here, which efficiently accommodates sulfur and provides a heterogeneous dual catalytic interface like a two-stage "filter".
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, P. R. China.
Optimizing the composition and structure of nanocatalysts is an efficient approach to achieving the top electrocatalytic performance. However, the construction of hollow nanocomposites composed of metal phosphides and highly conductive carbon to promote the electrocatalytic performance of metal phosphide-based catalysts is rarely reported. Herein, a CoFeP/C nanobox nanocomposite consisting of Co-Fe mixed-metal phosphides and N-doped carbon was successfully fabricated through an ion-exchange phosphidation strategy derived from ZIF-67 nanocubes.
View Article and Find Full Text PDFChem Asian J
December 2024
School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India.
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