A5089078733- Photonic Crystals and Applications
- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- Advanced Chemical Physics Studies
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
- Inorganic and Organometallic Chemistry
- CO2 Reduction Techniques and Catalysts
- Zeolite Catalysis and Synthesis
- Inorganic Fluorides and Related Compounds
- Silicon Nanostructures and Photoluminescence
- Crystal Structures and Properties
- Inorganic Chemistry and Materials
- Copper-based nanomaterials and applications
- Polyoxometalates: Synthesis and Applications
- Solid-state spectroscopy and crystallography
- Nanocluster Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Ammonia Synthesis and Nitrogen Reduction
- Molecular Junctions and Nanostructures
- Gas Sensing Nanomaterials and Sensors
- Chemical Synthesis and Characterization
- Covalent Organic Framework Applications
University of Toronto
2016-2025
Central China Normal University
2021
California Institute of Technology
1977-2021
Toronto Public Health
2015-2020
Max Planck Institute of Colloids and Interfaces
2004-2019
Northwest Normal University
2019
Clarkson University
2019
Materials Processing (United States)
2019
King Abdullah University of Science and Technology
2019
Institute of Coal Chemistry
2019
The synthesis using the thermal decomposition of metal trifluoroacetates is being widely used to prepare oleate-capped lanthanide-doped upconverting NaYF(4):Er(3+)/Yb(3+) nanoparticles (Ln-UCNPs). These have no inherent aqueous dispersibility and inconvenient postsynthesis treatments are required render them water dispersible. Here, we developed a novel facile approach obtain water-dispersible, ligand-free, brightly Ln-UCNPs. We show that upconversion luminescence affected by local...
In recent years, a lot of attention has been devoted to monolayer materials, in particular transition-metal dichalcogenides (TMDCs). While their growth on substrate and exfoliation are well developed, the colloidal synthesis monolayers solution remains challenging. This paper describes development synthetic protocols for producing WS2 monolayers, presenting not only usual semiconducting prismatic 2H-WS2 structure but also less common distorted octahedral 1T-WS2 structure, which exhibits...
Preface - In the Beginning there was Nano Nanochemistry Basics Chemical Patterning and Lithography Layer-By-Layer Self-Assembly Nanocontact Printing Writing Nanorod, Nanotube, Nanowire Nanocluster Microspheres Colours from Beaker Microporous Mesoporous Materials Self-Assembling Block Copolymers Biomaterials Bioinspiration of Large Building Blocks Beyond Nanolabs Subject Index
For three-dimensional photonic crystals, made either by top-down microfabrication or bottom-up self-assembly approaches, to comply with the stringent requirements of optical telecommunication applications, their degree structural perfection and quality must meet an exceptionally high standard. Only such superior crystals can unique properties be harnessed in devices circuits constructed from micrometer-sized components. In this paper, we present a new strategy for making silica colloidal...
Self-powered completely synthetic nanorotors have been prepared from barcoded gold-nickel nanorods having the gold end anchored to surface of a silicon wafer; constant velocity circular movements are observed when hydrogen peroxide fuel is catalytically decomposed oxygen at unattached nickel nanorod.
Abstract Locomotion on the nanoscale through a fluid environment is one of grand challenges confronting nanoscience today. The vision to synthesize, probe, understand, and utilize new class motors made from building blocks that derive on‐board or off‐board power in‐situ chemical reactions. generated mechanical work allows these move phase while simultaneously sequentially performing task series tasks. Such tiny machines, individually assembled into designed architectures, might someday...
We report here on a detailed study PbS colloidal quantum dots. A characterization via X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) allowed us to reliably determine the diameter shape of nanocrystals. These data, together with second-derivative analysis absorption spectra, size dependence seven transitions in spectrum; some these were identified basis their normalized confinement energy. The first excitonic transition was best modeled by four-band...
Periodic mesoporous organosilicas (PMOs) represent an exciting new class of organic-inorganic nanocomposites targeted for a broad range applications such as catalysis and sensing, separations, microelectronics. Their hallmark is the presence organic bridging groups incorporated into channel walls ordered nanoporous structure, which represents useful tool to finely tune chemical physical properties materials. We discuss history discovery development PMOs emphasizing most important recent...
Photothermal catalysis is an emerging sub-discipline of heterogeneous that exploits broad absorption the solar spectrum to stimulate a combination thermochemical and photochemical processes, which contribute synergistically driving catalytic reactions. In particular, it proving effective promising strategy for converting CO<sub>2</sub> synthetic fuels.
Abstract A hundred years on, the energy‐intensive Haber–Bosch process continues to turn N 2 in air into fertilizer, nourishing billions of people while causing pollution and greenhouse gas emissions. The urgency mitigating climate change motivates society progress toward a more sustainable method for fixing that is based on clean energy. Surface oxygen vacancies (surface O vac ) hold great potential adsorption activation, but introducing very surface without affecting bulk properties remains...
TiO x ( < 2) nanoparticles with tunable colors from white to gray blue–gray black are synthesized by magnesium (Mg) reduction of P25 2 nanocrystals followed removal excess Mg aqueous HCl and distilled water. Increasing amounts smoothly decrease the oxygen content in which is responsible for gradual increase light absorption concomitant darkening its color decreasing values . The as‐synthesized spin‐coated onto surface a stainless steel mesh superhydrophobization order test their...
Slow photons in photonic crystals are shown to optically amplify the photoactivity of anatase TiO2 an inverse opal structure. An enhancement absorption as a result slow leads larger population electron–hole pairs and faster degradation organic molecules. A remarkable twofold is achieved (see figure) when energy optimized with respect edge anatase.
The recent years have seen an explosive interest in one-dimensional nanostructures1, as testified by the number of citations this field has accrued; customary, its blossoming was enabled chemical breakthroughs that allowed reproducible and affordable synthesis such structures.2, 3 limitations those syntheses diameter nanowires it could produce (hardly < 10 nm), use expensive low-yield techniques, vapor deposition (CVD). This paper attempts to summarize very production ultrathin nanowires,...
Abstract Herein a novel synthetic route is described for the production of thermally stable, structurally well‐defined two‐dimensional (2D) hexagonal mesoporous nanocrystalline anatase (meso‐nc‐TiO 2 ), with large pore diameter, narrow pore‐size distribution, high surface area, and robust inorganic walls comprised anatase. The approach involves evaporation‐induced co‐assembly non‐ionic amphiphilic triblock‐copolymer template titanium tetraethoxide, but pivotal change in main solvent system,...