A5061463299- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Nanocluster Synthesis and Applications
- Iron oxide chemistry and applications
- TiO2 Photocatalysis and Solar Cells
- ZnO doping and properties
- Ammonia Synthesis and Nitrogen Reduction
- Electrocatalysts for Energy Conversion
- Advanced Data Storage Technologies
- Carbon and Quantum Dots Applications
- Ichthyology and Marine Biology
- Hydrogen Storage and Materials
- Advanced Nanomaterials in Catalysis
- Caching and Content Delivery
- Advanced materials and composites
- Advanced biosensing and bioanalysis techniques
- Laser-Ablation Synthesis of Nanoparticles
- Gold and Silver Nanoparticles Synthesis and Applications
- Catalysis and Hydrodesulfurization Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Water Quality Monitoring Technologies
- Cloud Computing and Resource Management
- Electronic and Structural Properties of Oxides
- Identification and Quantification in Food
National Yang Ming Chiao Tung University
2018-2023
National Chengchi University
2023
Bridge University
2023
Feng Chia University
2023
Materials Science & Engineering
2016
National Tsing Hua University
2014
As the Holy Grail to a carbon-free hydrogen economy, photoelectrochemical (PEC) water splitting offers promising path for sustainable production of fuel from solar energy. Even though much progress has been made over past decade, effectiveness and robustness PEC cells are still far mature phase that would allow widespread deployment. This perspective discusses key challenges facing current level development proposes experimental approaches strategies can be adopted address issues. Focuses...
We synthesized nitrogen (N)-doped graphene quantum dots (N-GQDs) using a top-down hydrothermal cutting approach. The concentration of N dopants was readily controlled by adjusting the source urea. When were incorporated into GQDs, visible absorption induced C–N bonds, which created another pathway for generating photoluminescence (PL). Time-resolved PL data revealed that carrier lifetime GQDs increased upon doping with optimized concentration. photoelectrochemical properties N-GQDs toward...
In this work, we demonstrated the practical use of Au@Cu2O core-shell and Au@Cu2Se yolk-shell nanocrystals as photocatalysts in photoelectrochemical (PEC) water splitting photocatalytic hydrogen (H2) production. The samples were prepared by conducting a sequential ion-exchange reaction on nanocrystal template. displayed enhanced charge separation Au core yolk can attract photoexcited electrons from Cu2O Cu2Se shells. localized surface plasmon resonance (LSPR) Au, other hand, facilitate...
Poor kinetics of hole transportation at the electrode/electrolyte interface is regarded as a primary cause for mediocre performance n-type TiO2 photoelectrodes. By adopting nanotubes electrode backbone, light absorption and carrier collection can be spatially decoupled, allowing TiO2, with its short diffusion length, to maximize use available photoexcited charge carriers during operation in photoelectrochemical (PEC) water splitting. Here, we presented delicate electrochemical anodization...
As the feet of clay, photocorrosion induced by hole accumulation has placed serious limitations on widespread deployment sulfide nanostructures for photoelectrochemical (PEC) water splitting. Developing sufficiently stable electrodes to construct durable PEC systems is therefore key realization solar hydrogen production. Here, an innovative charge-transfer manipulation concept based aligned transport across interface been realized enhance photostability In2S3 toward The was conducting...
Abstract Using in situ ultrafast laser spectroscopic techniques to monitor the charge dynamics of semiconductor photocatalysts under operating conditions is essential for digging out veritable interactions between carriers and reactive species. This real-time observation desirable optimizing individual components their integration advanced photoelectrochemical (PEC) photocatalytic systems, which can achieve “Holy Grail” solar energy harvesting fuel generation. Review summarizes recent...
ZnS particles were grown over Cu2O cubes, octahedra, and rhombic dodecahedra for examination of their facet-dependent photocatalytic behaviors. After growth, cubes stay photocatalytically inactive. ZnS-decorated octahedra show enhanced activity, resulting from better charge carrier separation upon photoexcitation. Surprisingly, give greatly suppressed activity after deposition. Electron paramagnetic resonance spectra agree with these experimental observations. Time-resolved photoluminescence...
In recent years, yolk–shell nanocrystals have become the spotlight of research worldwide because fascinating structural properties such as a permeable shell, an interior void space, and movable yolk. Numerous studies reported various compositions nanocrystals. Among them, comprising metal yolk semiconductor shells are particularly interesting they can be geared to mass transport-related utilizations, for example, photocatalysis. We sequential ion-exchange process prepare metal–semiconductor...
Wastewater containing synthetic dyes has caused a significant risk to the environment and human health. Among various methods treat wastewater, photocatalysis recommends itself as particularly efficient tool for removal of from industrial effluents. In this work, [email protected]2O protected] nanocrystals with controllable shell thicknesses 38.1 ± 2.8 ([email protected]2O-2), 48.1 3.7 protected]2O-3) 59.1 4.1 nm have been prepared immobilized on polyethylene terephthalate (PET) fabrics...
This paper deals with the problem of scheduling requests on disks for minimizing energy consumption. We first analyze several versions energy-aware disk based assumptions arrival pattern requests. show that corresponding optimization problems are NP-complete. Then both optimal and heuristic algorithms proposed to maximize saving a storage system. evaluate our approach using multiple realistic I/O traces, simulator model. The results we significantly reduce consumption up 55 percent achieve...
Abstract This study proposes a novel framework for fish species classification that combines FRCNN (Faster Region-based Convolutional Neural Network), VGG16 (Visual Geometry Group 16), and SPPNet (Spatial Pyramid Pooling network). The proposed FRCNN-VGG16-SPPNet the strengths of FRCNN's fast object detection localization, VGG16's convenient transfer learning performance, SPPNet's image processing flexibility robustness in handling input images any size. First, is used to detect extract...
Here we demonstrate the practical use of yolk-shell nanocrystals for efficient photoelectrochemical water splitting. The samples were prepared by using Au-Cu 2 O core-shell as growth template. By performing selenization treatment on accompanied with Kirkendall effect, abundant voids generated inside structure, resulting in formation Se nanocrystals. Steady-state photoluminescence spectra show that charge separation efficiency was particularly prevalent Time-resolved data further reveal...
The associated use of limited fossil fuels has also aroused an urgent need to seek for alternative, renewable energy sources. In this regard, hydrogen is the potential and green alternative replace fuels. Photo-electrochemical (PEC) water splitting towards production one research hotspots, which received significant attention due its easy setup great flexibility further integrating with conversion storage systems. Hematite (Fe 2 O 3 ) been widely utilized in photoelectrochemical cells...