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Understanding the CO Reduction Selectivity toward Ethanol on Single Atom Doped Cu/CuO Catalysts: Insights from Bader Charge as a Descriptor.
J Phys Chem Lett
January 2025
Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou, Fujian 350117, China.
In the CO reduction reactions (CORR), the product selectivity is strongly dependent on the binding energy differences of the key intermediates. Herein, we systematically evaluated the CORR reaction pathways on single transition metal atom doped catalysts TMCu/CuO by density functional theory (DFT) methods and found that *CO is more likely to undergo C-O bond cleavage rather than be hydrogenated on TMCu/CuO (TM = Sc, Ti, V, Cr, Mn, Fe, Co), which facilitates C production with a low-energy pathway of OC-C coupling, while it prefers to be hydrogenated to form CHO on TMCu/CuO (TM = Ni, Cu). The defects of Cu in TMCu/CuO were confirmed to enhance the production of ethanol.
View Article and Find Full Text PDFObjective Approach for Titration of Continuous Positive Airway Pressure in Patients with Obstructive Sleep Apnea Using Daytime Continuous Positive Airway Pressure Titration Based on Respiratory Movement Regularity.
J Clin Med
December 2024
Division of Respiratory Medicine and Rheumatology, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan.
: Continuous positive airway pressure (CPAP) is used to treat patients with obstructive sleep apnea (OSA) and has proven clinical efficacy for this condition. However, the objective method to determine the appropriate CPAP level for treatment is still unclear. Patients with OSA typically exhibit irregular respiratory efforts due to obstruction or narrowing of the upper airway during sleep.
View Article and Find Full Text PDFSubnano AlO Coatings for Kinetics and Stability Optimization of LiNiCoMnO via O-Based Atomic Layer Deposition.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Intelligent Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China.
The Ni-rich LiNiCoMnO cathode (NCM, ≥ 0.6) suffers rapid capacity decay due to serious surface degradations from the corrosion of the electrolyte. The processes of the HO- and O-based AlO atomic layer deposition (ALD) on the single-crystal LiNiCoMnO (NCM83) are investigated by measurements to understand the mechanism of their different impacts on the electrochemical performance of NCM83.
View Article and Find Full Text PDFCytotoxic Effects of ZnO and Ag Nanoparticles Synthesized in Microalgae Extracts on PC12 Cells.
Mar Drugs
December 2024
Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy.
The green synthesis of silver (Ag) and zinc oxide (ZnO) nanoparticles (NPs), as well as Ag/AgO/ZnO nanocomposites (NCs), using polar and apolar extracts of , offers a sustainable method for producing nanomaterials with tunable properties. The impact of the synthesis environment and the nanomaterials' characteristics on cytotoxicity was evaluated by examining reactive species production and their effects on mitochondrial bioenergetic functions. Cytotoxicity assays on PC12 cells, a cell line originated from a rat pheochromocytoma, an adrenal medulla tumor, demonstrated that Ag/AgO NPs synthesized with apolar (Ag/AgO NPs A) and polar (Ag/AgO NPs P) extracts exhibited significant cytotoxic effects, primarily driven by Ag ion release and the disruption of mitochondrial function.
View Article and Find Full Text PDFCuO@Cu@NiAl-LDH with Cu/Cu Valence Synergy and Core-Shell Structure for Highly Selective Generation of CH.
ChemSusChem
December 2024
College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, 200090, People's Republic of China.
Photocatalytic CO reduction to produce C products remains a challenge. Herein, CuO@Cu@NiAl-LDH composites with three-dimensional ordered core-shell structures were successfully prepared, and the effects of CuO with different exposed surfaces on CO photoreduction were investigated. The synergistic effect of zero-valent Cu and Cu as intermediate electron mediators retains more photogenerated electrons and the Z-scheme heterojunction formed between CuO and NiAl-LDH leads to the enhancement of C selectivity.
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