Mesoporous single-crystalline V2O5 nanorods assembled into novel hollow microspheres have been synthesized as cathode materials for lithium-ion batteries by a simple solvothermal treatment of NH4VO3 and ethylene glycol with subsequent annealing in air at 400 °C, which delivered a very high reversible capacity of 145.8 mA h g(-1) at 2.5-4.0 V (vs. theoretical value: 147 mA h g(-1)) with much improved capacity retention and long cycle life at various rates.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c4cc06733a | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mesoscale Reorganization of the Depolymerized Aluminosilicate into Single-Crystalline Hierarchical Zeolite.
ACS Appl Mater Interfaces
November 2024
National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P. R. China.
Controllable synthesis of hierarchical zeolites from natural aluminosilicate minerals is considered an efficient and eco-friendly approach for the production of high-performance zeolites, but its synthesis mechanism is still obscure. Herein, we take the synthesis of a single-crystalline hierarchical NaA zeolite using submolten salt depolymerized kaolin (SMS-K) as the sole source of silicon and aluminum via a mesoscale reorganization strategy as an example to elucidate the reorganization process. Comprehensive morphological and structural analyses reveal that sodium-rich voids in SMS-K facilitate concurrent assembly both within the interior and at the interface of the amorphous gel, leading to the formation of numerous nanoparticles with short-range order which assemble into single-crystal nanocube NaA zeolites with intracrystalline mesopores.
View Article and Find Full Text PDFTwo-dimensional single-crystalline mesoporous high-entropy oxide nanoplates for efficient electrochemical biomass upgrading.
Nat Commun
August 2024
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 610064, Chengdu, China.
Mesoporous single crystals have received more attention than ever in catalysis-related applications due to their unique structural functions. Despite great efforts, their progress in engineering crystallinity and composition has been remarkably slower than expected. In this manuscript, a template-free strategy is developed to prepare two-dimensional high-entropy oxide (HEO) nanoplates with single-crystallinity and penetrated mesoporosity, which further ensures precise control over high-entropy compositions and crystalline phases.
View Article and Find Full Text PDFNanoengineering Multilength-Scale Porous Hierarchy in Mesoporous Metal-Organic Framework Single Crystals.
ACS Nano
August 2024
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
Developing a reliable method for constructing mesoporous metal-organic frameworks (MOFs) with single-crystalline forms remains a challenging task despite numerous efforts. This study presents a solvent-mediated assembly method for fabricating zeolitic imidazolate framework (ZIF) single-crystal nanoparticles with a well-defined micro-mesoporous structure using polystyrene--poly(ethylene oxide) diblock copolymer micelles as a soft-template. The precise control of particle sizes, ranging from 85 to 1200 nm, is achieved by regulating nucleation and crystal growth rates while maintaining consistent pore diameters in mesoporous nanoparticles and a rhombohedral dodecahedron morphology.
View Article and Find Full Text PDF2D PtRhPb Mesoporous Nanosheets with Surface-Clean Active Sites for Complete Ethanol Oxidation Electrocatalysis.
Adv Mater
August 2024
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
The development of active and selective metal electrocatalysts for complete ethanol oxidation reaction (EOR) into desired C1 products is extremely promising for practical application of direct ethanol fuel cells. Despite some encouraging achievements, their activity and selectivity remain unsatisfactory. In this work, it is reported that 2D PtRhPb mesoporous nanosheets (MNSs) with anisotropic structure and surface-clean metal site perform perfectly for complete EOR electrocatalysis in both three-electrode and two-electrode systems.
View Article and Find Full Text PDFOrdering Bimetallic Cu-Pd Catalysts onto Orderly Mesoporous SrTiO-Crystal Nanotubular Networks for Efficient Carbon Dioxide Photoreduction.
Angew Chem Int Ed Engl
July 2024
Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering & Sydney Nano Institute, The University of Sydney, Darlington, New South Wales, 2008, Australia.
Artificial photosynthesis of fuels has garnered significant attention, with SrTiO emerging as a potential candidate for photocatalysis due to its exceptional physicochemical properties. However, selectively converting CO into fuels with desired reaction products remains a grand challenge. Herein, we design an updated method via an aging strategy based on the electrospinning technique to synthesize a single-crystalline Al-doped SrTiO nanotubular networks with self-assembled orderly mesopores, further modified by Cu-Pd alloy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!