A5057674459- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- ZnO doping and properties
- Ga2O3 and related materials
- Electrocatalysts for Energy Conversion
- GaN-based semiconductor devices and materials
- Gas Sensing Nanomaterials and Sensors
- Advanced battery technologies research
- Electronic and Structural Properties of Oxides
- TiO2 Photocatalysis and Solar Cells
- Advanced biosensing and bioanalysis techniques
- CO2 Reduction Techniques and Catalysts
- Semiconductor materials and devices
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Diverse Approaches in Healthcare and Education Studies
- Heat Transfer and Optimization
- Supercapacitor Materials and Fabrication
- Thermal Radiation and Cooling Technologies
- Graphene research and applications
- Energy and Environmental Systems
- Thermal properties of materials
- Quantum Dots Synthesis And Properties
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
Chonnam National University
2015-2024
Chonnam National University Hospital
2016-2024
Korea Photonics Technology Institute
2023-2024
Convergence
2022
Gwangju University
2018-2021
Government of the Republic of Korea
2018-2020
Korea Atomic Energy Research Institute
2003
The coupling of oxygen evolution reaction (OER) catalysts with photoanodes is a promising strategy for enhancing the photoelectrochemical (PEC) performance by passivating photoanode's surface defect states and facilitating charge transfer at photoanode/electrolyte interface. However, serious interface recombination issue caused poor OER coating quality often limits further improvement photoanodes. Herein, rapid Fenton-like method demonstrated to produce ultrathin amorphous Ni:FeOOH in...
NiCoFe-LTH nanosheet arrays on a nickel foam substrate act as an efficient and stable electrocatalyst for urea electrolysis, which needs only 1.49 V 10 mA cm −2 .
Copper oxide (Cu2O) has attracted significant interest as an efficient photocathode for photoelectrochemical (PEC) water splitting owing to its abundance, suitable band gap, and band-edge potential. Nevertheless, a high charge recombination rate restricts practical photoconversion efficiency reduces the PEC water-splitting performance. To address this challenge, we present facile electrodeposition of graphene (GO) on Cu2O surface. determine effect varying GO weight percentages performance,...
Photoelectrochemical (PEC) water splitting is one of the most promising hydrogen production methods because its high efficiency, renewable resources and harmless by-products. Gallium nitride (GaN) suitable for PEC it has excellent stability in electrolyte band gap energy which straddles redox potential (Vredox = 1.23 V). These characteristics allow this material to split stably without external bias. However, GaN still not sufficient practical applications. In study, we investigated...
A g-C3N4/CuO nanostructure featuring improved photoelectrochemical properties was successfully prepared using a facile and cost-effective method involving electrodeposition thermal oxidation. The were mainly ascribed to the increased surface area charge transportation of photocathode. This photocathode can be used in novel strategies for resolving problems associated with low-efficiency CuO photocathodes.
Solar-to-chemical energy conversion is a potential alternative to fossil fuels. A promising approach the electrochemical (EC) reduction of CO2 value-added chemicals, particularly hydrocarbons. Here, we report on selective EC CO porous Au nanostructure (pAu) cathode in 0.1 M KHCO3. The pAu anodized at 2.6 V exhibited maximum Faradaic efficiency (FE) for (up 100% -0.75 vs reversible hydrogen electrode (RHE)). Furthermore, commercial Si photovoltaic cells were combined with systems (PV-EC)...
Abstract GaN microstructures were grown on c‐Al 2 O 3 with a multi‐stacked graphene buffered layer using metal metal‐organic chemical‐vapor deposition. Under the same growth conditions, nucleation of was suppressed by low surface energy graphene, resulting in much lower density relative to those . Residual stress estimated from peak shift E phonon micro‐Raman spectroscopy. The results showed that compressive approximately 0.36 GPa caused lattice mismatch and difference thermal expansion...
We demonstrate that Pd nanoparticle/single-walled carbon nanotubes (Pd-SWCNTs) can be used to improve the quality of α-Ga2O3 crystals using halide vapor phase epitaxy (HVPE) methods. employed Pd-SWCNTs as nanoepitaxial lateral overgrowth (ELOG) mask instead typical dielectric microsize materials, such SiNx or SiO2. Nano-ELOG were deposited on a (0001) buffer layer nanospray coating. Cs-corrected TEM (transmission electron microscopy) analysis revealed crystal regrown improved owing both...
A surface-engineered Si photocathode with a Ni–graphene core–shell structure is designed to enhance hydrogen evolution performance for water-splitting applications.
Deep eutectic solvent-mediated selective synthesis of Cu–Sb–S-based nanocrystals for water splitting applications.
Abstract In this work, we study the effect of Cu 2 O film obtained from a fully reacted seed layer as photoelectrode in photoelectrochemical cells. The full reaction shows an enhanced photocurrent density and improved efficiency hydrogen evolution. textured (0.58 mA cm −2 at 0 V vs. RHE), without unreacted is two times higher than films containing (0.29 under AM 1.5 illumination (100 mW ). thickness influences significantly charge transfer process interface between electrolyte. performance...