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Bionic Hollow Porous Carbon Nanofibers for Energy-Dense and Rapid Zinc Ion Storage.
Angew Chem Int Ed Engl
December 2024
Nanjing Forestry University, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, CHINA.
Suboptimal spatial utilization and inefficient access to internal porosity preclude porous carbon cathodes from delivering high energy density in zinc-ion hybrid capacitors (ZIHCs). Inspired by the function of capillaries in biological systems, this study proposes a facile coordination-pyrolysis method to fabricate thin-walled hollow carbon nanofibers (CNFs) with optimized pore structure and surface functional groups for ZHICs. The capillary-like CNFs maximize the electrode/electrolyte interface area, facilitating the optimal utilization of energy storage sites.
View Article and Find Full Text PDFA Bifunctional Imidazolyl Iodide Mediator of Electrolyte Boosts Cathode Kinetics and Anode Stability Towards Low Overpotential and Long-Life Li-O2 Batteries.
Angew Chem Int Ed Engl
December 2024
Dalian Institute of Chemical Physics State Key Laboratory of Catalysis, Dalian National Laboratory For Clean Energy, Zhongshan Road 457, 116023, Dalian, CHINA.
The addition of a redox mediator as soluble catalyst into electrolyte can effectively overcome the bottlenecks of poor energy efficiency and limited cyclability for Li-O2 batteries caused by passivation of insulating discharge products and unfavorable byproducts. Herein we report a novel soluble catalyst of bifunctional imidazolyl iodide salt additive, 1,3-dimethylimidazole iodide (DMII), to successfully construct highly efficient and durable Li-O2 batteries. The anion I- can effectively promote the charge transport of Li2O2 and accelerate the redox kinetics of oxygen reduction/oxygen evolution reactions on the cathode side, thereby significantly decreasing the charge/discharge overpotential.
View Article and Find Full Text PDFCascade Selenization Regulated the Electronic Structure and Interface Effect of Transition Metal Sulfides for Enhanced Sodium Storage.
Angew Chem Int Ed Engl
December 2024
University of Shanghai for Science and Technology, institute of energy materials science, CHINA.
The utilization of cobalt-based sulfides is constrained by their inherently low conductivity and slow sodium ion diffusion kinetics. Modifying the electronic configuration and constructing heterostructures are promising strategies to enhance intrinsic conductivity and expedite the sodium ion diffusion process. In this study, heterogeneous nanoparticles of Se-substituted CoS2/CoSe2, embedded within heteroatom-modified carbon nanosheet, were synthesized using metal molten salt-assisted dimensionality reduction alongside concurrent sulfurization and selenization techniques.
View Article and Find Full Text PDFNeuroimaging Correlates of the NIH-Toolbox-Driven Cognitive Metrics in Children.
J Integr Neurosci
December 2024
Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06519, USA.
Background: The National Institutes of Health (NIH) Toolbox Cognition Battery is increasingly being used as a standardized test to examine cognitive functioning in multicentric studies. This study examines the associations between the NIH Toolbox Cognition Battery composite scores with neuroimaging metrics using data from the Adolescent Brain Cognitive Development (ABCD) study to elucidate the neurobiological and neuroanatomical correlates of these cognitive scores.
Methods: Neuroimaging data from 5290 children (mean age 9.
Novel organic additives with high dipole moments: Improving the anode interface structure to enhance the performance of zinc ion aqueous batteries.
J Colloid Interface Sci
December 2024
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, PR China; Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, PR China; Fujian College, University of Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China. Electronic address:
The reversibility and stability of aqueous zinc-ion batteries (AZIBs) are largely limited by free-water-induced side reactions (e.g., hydrogen evolution and zinc corrosion) and negative zinc dendrite growth.
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