A5000174164- Mesoporous Materials and Catalysis
- Advanced Nanomaterials in Catalysis
- Advanced biosensing and bioanalysis techniques
- Aerogels and thermal insulation
- Electrochemical sensors and biosensors
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Zeolite Catalysis and Synthesis
- Microbial Metabolic Engineering and Bioproduction
- Polyoxometalates: Synthesis and Applications
- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Graphene and Nanomaterials Applications
- Advanced Control Systems Optimization
- Silicone and Siloxane Chemistry
- Advanced Photocatalysis Techniques
- Viral Infectious Diseases and Gene Expression in Insects
- Nanoplatforms for cancer theranostics
- Advanced Battery Technologies Research
- Transition Metal Oxide Nanomaterials
- Semiconductor materials and devices
- Catalysis and Oxidation Reactions
- Optimization and Variational Analysis
- Advanced battery technologies research
- Copper-based nanomaterials and applications
The Ohio State University
2006-2025
Johns Hopkins University Applied Physics Laboratory
2019-2024
Henan Normal University
2019-2024
Nanyang Normal University
2014-2022
Earth Resources Technology (United States)
2019-2021
Dalian University of Technology
2010-2020
Dalian University
2010-2017
Loughborough University
2016
Battelle
2010
University of Kentucky
2003-2006
We report the high capacity and rate capability of mesoporous Co3O4 nanowire (NW) arrays as anodes in Li ion batteries. At a current 1C, NW maintain 700 mAh/g after 20 discharge/charge cycles. When is increased to 50C, 50% can be retained. With their ease large area synthesis superior electrochemical properties, these will interesting for practical
Dye-sensitized solar cells were fabricated based on the composites of anatase TiO2 nanoparticles and single crystalline nanowires. Nanoparticle/nanowire can possess advantages both building blocks, i.e., high surface area nanoparticle aggregates rapid electron transport rate light scattering effect single-crystalline Three different prepared with 5 wt %, 20 77 % nanowires, respectively. The performances composite compared pure at a series film thickness. With low nanowire concentrations (5...
Developing new electrode materials is important for high-performance dye-sensitized solar cells (DSSCs). Previous research has mostly been limited to simple binary oxides. The application of multication oxides in DSSC rarely explored. In this communication, we report the promising Zn2SnO4 nanoparticles DSSC. An overall light-to-electricity efficiency as high 3.8% achieved under 1 sun AM 1.5 illumination. comparison with ZnO and SnO2 its component oxides, a cell more stable against acidic...
We report a facile template-free method for the large-area growth of freestanding hollow Co3O4 nanowire arrays on variety substrates including transparent conducting glass, Si wafer, and copper foil, et al. These nanowires have interesting combined properties mesoporosity quasi-single-crystallinity. With their high surface area crystallinity, direct conductive substrate, these will promising applications in lithium-ion batteries, chemical sensing, field-emission electrochromic devices. Using...
Hollow spherical silica particles with hexagonally ordered mesoporous shells are synthesized the dual use of cetyltrimethylammonium bromide (CTAB) and unmodified polystyrene latex microspheres as templates in concentrated aqueous ammonia. In most hollow particles, cylindrical pores run parallel to core due interactions CTAB/silica aggregates latices. Effects on product structure CTAB:latex ratio, amount ammonia, size studied. patterned obtained at moderate ratios. Too little CTAB causes...
We report an ammonia-evaporation-induced synthetic method for metal (Ni, Cu, Zn, and Cd) hydroxide/oxide nanostructures including hierarchical CuO spheres with radiating nanoplates, densely branched ZnO nanowires, Cd(OH)2 nanofibers, Ni(OH)2 nanoplates. One important feature of this mild surfactant-free methodology is that these grow in a dynamic environment the continuous decrease pH ammonia concentration solution, which responsible formation complex architectures. The obtained nanofibers...
Two-dimensional bimetallic anchored metal–organic framework nanosheets (Cu(HBTC)-1/Fe<sub>3</sub>O<sub>4</sub>-AuNPs) with switchable peroxidase-like activity regulated by ssDNA.
Room temperature processed silica sol-gel (xerogel) was investigated as a novel controlled release carrier of antibiotics (vancomycin). Xerogel characteristics, in vitro properties, and bactericidal efficacy the released antibiotic were determined. The xerogel/vancomycin composite showed long-term sustained (up to 6 weeks). In addition, vancomycin retained. kinetics amount dose dependent. initial, first-order followed by near-zero-order release. time transition from first- zero-order...
We report UV-cured eutectic gel polymer electrolytes that improve cell performance, non-flammability, and water tolerance compared to the liquid solvent.
Hollow silica particles with mesoporous walls (see Figure) are synthesized from solution by co-assembly of cationic fluorinated surfactants. The resemble vesicles, but retain wall patterns, indicating that they do not form silica-coated bilayers the micelles. Stronger shearing during synthesis causes to aggregate into elongated multiple hollow chambers. Supporting information for this article is available on WWW under http://www.wiley-vch.de/contents/jc_2089/2005/c0344_s.pdf or author....
Prelithiation of LiMn 2 O 4 balances the low first cycle efficiency silicon anodes for improvements in energy density and prospective cell chemistry enabled by naturally abundant elements.
Abstract Nature provides many examples of the benefits nanoscopic surface structures in areas adhesion and antifouling. Herein, design, fabrication, characterization liquid crystal elastomer (LCE) films are presented with nanowire that exhibit tunable stimuli‐responsive deformations enhanced properties. The LCE shown to curl toward side nanowires when stimulated by heat or organic solvent vapors. In contrast, a droplet same is placed on film, it curls away from due nanowire‐induced capillary...
When cationic surfactants are added to the Stöber process, spherical particles with radially oriented mesopores can be prepared by precipitation of silica from a solution ethanol, water, and ammonia. Van Tendeloo co-workers proposed that these form epitaxial growth cylindrical assemblies facets Ia3d cubic (MCM-48) seeds. [J. Phys. Condens. Matter 2003, 15, S3037.] Here, we reexamine this hypothesis detailed characterization intermediate final mesoporous formed ethanol/water/ammonia...
Effects of the structure an alkoxysilane on early reaction kinetics sol−gel polymerization are investigated in basic and acidic conditions. Six silanes, including tetraethoxysilane (TEOS), tetramethoxysilane (TMOS), methyltrimethoxysilane (MTMS), bis(trimethoxysilyl)ethane (BTMSE), bis(trimethoxysilyl)hexane (BTMSH), bis(trimethoxysilylpropyl)amine (BTMSPA), selected to examine effects progressive changes silane's structure. In conditions, reactivities silanes follow pairwise trends TEOS ≪...
The effect of catalyst loading levels on the oxygen reduction reaction (ORR) selectivity for water formation both nitrogen-containing nanostructured carbon (CNx) and commercial Pt/Vulcan (VC) catalysts was examined using rotating ring disk electrode (RRDE) method. Catalyst loadings from 142 to 1420 µg/cm2 were studied. It found that played a significant role in determining formation, with lower showing much higher H2O2. phenomenon probed by examining experimental collection efficiencies RRDE...