Selective laser melting printed metal lattice structures functionalised using zeolites have been shown as a promising new generation of catalysts. The unprecedented catalytic activity can be explained by metal migration (most likely chromium) from the support into the zeolite phase making it a promising candidate for endothermic fuels for high-speed flight vehicles.
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http://dx.doi.org/10.1039/d1cc04246g | DOI Listing |
Phys Chem Chem Phys
January 2025
National Engineering Research Centre for Mg Alloys, Chongqing University, Chongqing 400044, PR China.
Rechargeable Mg batteries are promising candidates for achieving considerable high-energy-density. Enhancing the energy density can be achieved by integrating metallic Mg anodes with conversion-type cathode materials, which are characterized by multi-electron transfer process and elevated specific capacities in contrast to intercalation-type materials. Despite these advantages, the conversion-type cathodes still have some challenges of substantial volume expansion, sluggish diffusion kinetics and intricate mesophase evolution during repeated electrochemical reactions.
View Article and Find Full Text PDFJ Environ Manage
January 2025
Savannah River Ecology Laboratory, University of Georgia, Aiken, SC 29802, USA. Electronic address:
The primary approach to assessing monitored natural attenuation (MNA) is currently based on a conceptual model utilizing the total contaminant concentrations, assuming a single aqueous species. However, many contaminants, such as metals and radionuclide - including iodine, can exist in multiple species that behave chemically differently in the environment and can exist simultaneously. For example, radioiodine often occurs concurrently as three major aqueous species: iodide (I), iodate (IO), and organo-I, which undergo distinct attenuation pathways and exhibit markedly different mobility and geochemical behavior.
View Article and Find Full Text PDFOrg Lett
January 2025
Advanced Research Institute and Department of Pharmaceutical Sciences, Taizhou University, Taizhou, Zhejiang 318000, People's Republic of China.
Herein, we present a metal-free, concise, and efficient protocol for the intermolecular reaction of amides (lactams) with donor-acceptor α-diazo esters to afford the functionalized α-amino-α-aroylethanoates. -Methyl-2-pyrrolidone (NMP) and ,-dimethylformamide (DMF) are employed as both reagents and solvents, allowing for the incorporation of all units into the products. The reaction is processed by the ester group migration and compatible with a broad range of substrates up to 50 examples.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Key Laboratory for High Efficiency Energy Conversion Science and Technology of Henan Province, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng, 475004, P. R. China.
Multimode luminescent materials exhibit tunable photon emissions under different excitation or stimuli channels, endowing them high encoding capacity and confidentiality for anti-counterfeiting and encryption. Achieving multimode luminescence into a stable single material presents a promising but remains a challenge. Here, the downshifting/upconversion emissions, color-tuning persistent luminescence (PersL), temperature-dependent multi-color emissions, and hydrochromism are integrated into Er ions doped CsNaYbCl nanocrystals (NCs) by leveraging shallow defect levels and directed energy migration.
View Article and Find Full Text PDFJ Vis Exp
December 2024
Department of Cell Biology, School of Life Sciences, Central South University;
The aqueous extract from the bark of Eucommia ulmoides serves as a rich source of bioactive compounds with numerous health benefits. The protocol here aims to explore the preparation of zinc oxide (ZnO) nanoparticles using the Eucommia ulmoides bark-mediated polyisoprene-rich aqueous extract. Meanwhile, the proposed protocol is associated with the preparation of wound healing material by easing the process.
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