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Steering acidic oxygen reduction selectivity of single-atom catalysts through the second sphere effect.
Nat Commun
December 2024
Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou, China.
Natural enzymes feature distinctive second spheres near their active sites, leading to exquisite catalytic reactivity. However, incumbent synthetic strategies offer limited versatility in functionalizing the second spheres of heterogeneous catalysts. Here, we prepare an enzyme-mimetic single Co-N atom catalyst with an elaborately configured pendant amine group in the second sphere via 1,3-dipolar cycloaddition, which switches the oxygen reduction reaction selectivity from the 4e to the 2e pathway under acidic conditions.
View Article and Find Full Text PDFUnderstanding water reaction pathways to control the hydrolytic reactivity of a Zn metal-organic framework.
Nat Commun
December 2024
Department of Chemistry, University of Western Ontario, London, Ontario, N6A 5B7, Canada.
Metal-organic frameworks (MOFs) are a class of porous materials that are of topical interest for their utility in water-related applications. Nevertheless, molecular-level insight into water-MOF interactions and MOF hydrolytic reactivity remains understudied. Herein, we report two hydrolytic pathways leading to either structural stability or framework decomposition of a MOF (ZnMOF-1).
View Article and Find Full Text PDFThe Doping of Al3+ at the Tetrahedral Site of Spinel Mn3O4 for Electrocatalytic Water Oxidation.
Chemistry
December 2024
Shaanxi Normal University, School of Chemistry and Chemical Engineering, Zhizhi Building 1206, 710119, Xi'an, CHINA.
Spinel oxides have attracted much attention in electrocatalytic water oxidation. Specially, the Mn-based spinel structures merits fundamental investigation, as Mn is involved in water oxidation in natural photosynthesis. Herein, Al-doped Mn3O4 spinel electrocatalyst was prepared for water oxidation.
View Article and Find Full Text PDFAftereffect of single transcranial direct and alternating current stimulation on spontaneous home-cage and open-field EEG activities in a mouse model of Alzheimer's disease.
Front Aging Neurosci
December 2024
Medical School, Kunming University of Science and Technology, Kunming, China.
Background: As a non drug and non invasive therapy, both transcranial alternating current stimulation (tACS) and transcranial direct current stimulation (tDCS) may modulate cortical rhythms and serve as potentially effective approaches to cognitive decline in Alzheimer's disease (AD). However, studies using animal models of AD are quite limited.
Methods: This study investigates the aftereffects of tACS and tDCS on brain EEG activity and associated exploratory behavior in normal aged and APP/PS1 transgenic mice (15 months old).
Developing a comprehensive BACnet attack dataset: A step towards improved cybersecurity in building automation systems.
Data Brief
December 2024
Department of Computer Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
With the development of smart buildings, the risks of cyber-attacks against them have also increased. One of the popular and evolving protocols used for communication between devices in smart buildings, especially HVAC systems, is the BACnet protocol. Machine learning algorithms and neural networks require datasets of normal traffic and real attacks to develop intrusion detection (IDS) and prevention (IPS) systems that can detect anomalies and prevent attacks.
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