A5013961556- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Advanced Sensor and Energy Harvesting Materials
- Analytical Chemistry and Sensors
- Micro and Nano Robotics
- TiO2 Photocatalysis and Solar Cells
- Advanced Materials and Mechanics
- Modular Robots and Swarm Intelligence
- Multiferroics and related materials
- Perovskite Materials and Applications
- Dielectric materials and actuators
- Graphene research and applications
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Gas Sensing Nanomaterials and Sensors
- Electrochemical sensors and biosensors
- Chalcogenide Semiconductor Thin Films
- Lubricants and Their Additives
- Catalysis and Oxidation Reactions
- Tribology and Wear Analysis
- Electrochemical Analysis and Applications
- Polydiacetylene-based materials and applications
- Dielectric properties of ceramics
- Fiber-reinforced polymer composites
Sogang University
2023-2025
Institute of Physical Chemistry
2022-2023
Polish Academy of Sciences
2022-2023
Institut des Sciences Moléculaires
2020-2022
Centre National de la Recherche Scientifique
2020-2022
Institut Polytechnique de Bordeaux
2020-2022
Université de Bordeaux
2020-2022
Institute of Structure of Matter
2020
École Nationale Supérieure de Chimie, de Biologie et de Physique
2020
Ben-Gurion University of the Negev
2017-2019
M–Au/TiO2 (M = Ag, Pd, Pt) composites were prepared through a facile one-pot photodeposition synthesis and evaluated for solar water splitting (SWS) with without sacrificial agent. The M–Au combination exhibits dominant role in augmenting the H2 generation activity by forming bi-metallic system. Degussa P25 was used as TiO2 substrate to photodeposit Au followed + M Ag/Pd/Pt). SWS of determined photocatalytic production presence methanol agent under one sun conditions an AM1.5 filter. highest...
Electrocatalytic oxidation of methanol on silica hollow spheres, loaded with platinum nanoparticles (Pt-SiO2-HS), is reported. The functionalized spheres were prepared by the surfactant (lauryl ester tyrosine) template-assisted synthesis. These γ-radiolysis. Energy-dispersive X-ray analysis (EDAX) and photoelectron spectroscopy (XPS) analyses confirmed presence Si Pt in composite. High-resolution transmission electron microscopy showed formation uniformly deposited over a predominant Pt(111)...
High-quality reduced graphene oxide (rGO) nanosheets (NSs) were synthesized by the oxidation of graphite followed hydrazine treatment for reduction oxygen functionalities. γ-Radiolysis was then used functionalization rGO-NSs with poly(ethylene glycol) 200 (PEG200). The resulted in intercalation PEG200 molecules rGO through hydrogen bonding between hydroxyl groups and atoms molecules. This an increase d spacing sheets a decrease defect density carbon network rGO. friction coefficient wear...
A paper/polymer bilayer actuator was solely activated by light and showed effective bending weight-lifting capabilities.
The γ-radiolysis derived chemical grafting of graphite nanosheets with poly(ethylene-glycol) results in a remarkable decrease the friction coefficient and significantly enhanced antiwear characteristics steel–steel sliding interfaces.
Abstract Biohybrid robots have been developed for biomedical applications and industrial robotics. However, the biohybrid limitations to be applied in neurodegenerative disease research due absence of a central nervous system. In addition, organoids‐on‐a‐chip has not yet able replicate physiological function muscle movement human motor system, which is essential evaluating accuracy drugs used treating diseases. Here, system‐based robot‐on‐a‐chip composed brain organoid, multi‐motor neuron...
Abstract Nanotube and nanosheet morphologies have been celebrated for their electron transport properties. Present work has explored to exploit the same by combining 1D TiO 2 nanotube (1D‐TN) with 2D reduced graphene oxide (rGO) along nano gold visible light sensitization photocatalytic H generation under one sun condition (λ≥ 400 nm). Vertical horizontal in 1D‐TN rGO, respectively, is combined absorption capability of Au nanoparticle. yield (HY) varies between 100 655 µmol/g.h an apparent...
Abstract Ideal sillenite type Bi 12 FeO 20 (BFO) micron sized single crystals have been successfully grown via inexpensive hydrothermal method. The refined crystal X-ray diffraction data reveals cubic structure with parameters. Occurrence of rare Fe 4+ state is identified photoelectron spectroscopy (XPS) and absorption (XAS). lattice parameter ( a ) corresponding molar volume V m measured in the temperature range 30–700 °C by thermal expansion coefficient α 3.93 × 10 –5 K −1 was calculated...
Development of novel nanoscale devices requires unique functional nanomaterials. Furthermore, chemical design different nanoparticles in one unit is a complex task, particularly the application self-assembly J-aggregates, which can substantially advance nanomaterial's properties due to resonant delocalization excitons. Here, we have demonstrated for first time formation resonantly coherent J-aggregates on carbon nanotubes with highly efficient energy transfer from aggregates nanotubes. All...
Nanostructured Co3O4 was synthesized through a gamma (γ)-radiolysis technique using alcoholic (iso-propanol) salt solutions of cobalt ions with and without suspended graphene oxide (GO) nanoparticles, respectively. Formation accompanied GO reduction takes place simultaneously (in situ) upon γ-ray exposure carried out at rate 5.1 KGy h−1. Reduction formation were confirmed by XRD, Raman UV–vis spectroscopy. XRD HRTEM results supports the embedding nano-crystalline in an amorphous matrix....
Tubular conducting polymer actuators are used for developing a wireless electropumping device. Bipolar electrochemistry, allowing symmetry breaking in terms of polarization and electrochemical reactions, is the key ingredient efficient pumping.
Molecular‐pillar‐supported basal plane of reduced graphene oxide (rGO) is fabricated by polymerizing polyaniline (PANI). In the presence poly(ethylene glycol) (PEG200), γ ‐radiolysis used for modifying functionalization and improving structural symmetry PANI PEG grafted rGO (PANI‐PEG‐g‐rGO). The covalently noncovalently onto surface sheets. Carboxyl groups are linked to nitrogen atoms in backbone an accompanying noncovalent interaction between alkyl chains hydrooxylated formed. Raman Fourier...
Abstract Actuators controlled by external stimuli have received a lot of attention in recent years. Herein polymer based dual actuator is reported, triggered light and an electric field. This allows better control actuation, enlarging the field potential applications, like, for example, frame soft robotics. The composed polypyrrole TiO 2 modified with methylene blue. In aqueous solution, resulting freestanding hybrid film shows reversible actuation due to synergy applied Illumination...