A5103067735- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Cardiac Arrhythmias and Treatments
- Cardiac Valve Diseases and Treatments
- Copper-based nanomaterials and applications
- Cardiac Imaging and Diagnostics
- Coronary Interventions and Diagnostics
- Cardiac pacing and defibrillation studies
- TiO2 Photocatalysis and Solar Cells
- Atrial Fibrillation Management and Outcomes
- 2D Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Fungal Biology and Applications
- Fuel Cells and Related Materials
- Cardiovascular Syncope and Autonomic Disorders
- Plant Pathogens and Fungal Diseases
- Chalcogenide Semiconductor Thin Films
- Cardiac electrophysiology and arrhythmias
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Healthcare and Venom Research
- Advanced Memory and Neural Computing
- CO2 Reduction Techniques and Catalysts
- Advanced battery technologies research
- Solar-Powered Water Purification Methods
Stanford University
2023-2025
Yonsei University
2010-2025
University of California, Los Angeles
2024
Government of the Republic of Korea
2018
Armed Forces Capital Hospital
2014
Gyeongsang National University
2005-2007
The photo-electrochemical (PEC) oxidation of glycerol (GLY) to high-value-added dihydroxyacetone (DHA) can be achieved over a BiVO4 photoanode, while the PEC performance most photoanodes is impeded due upper limits photocurrent density. Here, an enhanced Mie scattering effect well-documented porous photoanode obtained with less effort by simple annealing process, which significantly reduces reflectivity near zero. great light absorbability increases basic density 1.77 times. selective GLY...
A novel yolk–shell-shaped WO<sub>3</sub>/BiVO<sub>4</sub> heterojunction photoanode was fabricated which is beneficial for efficient solar light utilization.
A two-photon tandem absorption E-BiVO 4 /BPQDs/OL-OEC photoanode with superior light absorbability and photocurrent density.
Abstract Due to the greenhouse effect, enormous efforts are done for carbon dioxide reduction. By contrast, more attention should be paid methane oxidation and conversion, which can help effective utilization of without emission. However, conversion under ambient conditions remains a challenge. Here, this study designs Co 3 O 4 /ZrO 2 nanocomposite electrochemical gas using carbonate electrolyte at room temperature. activated highly efficient mild electric energy with as an oxidant, is...
Abstract Solar energy utilization has drawn attention due to ever‐increasing environmental and issues. Photoelectrochemical (PEC) photocatalytic (PC) water splitting for hydrogen production, which is the most popular well‐established solar‐to‐chemical conversion process, been studied thoroughly date but now facing limitations related low efficiency. To resolve this issue, research in PEC cells or photocatalysts recently aimed produce alternative value‐added chemicals by modifying their redox...
Abstract Alkaline water splitting electrocatalysts have been studied for decades; however, many difficulties remain commercialization, such as sluggish hydrogen evolution reaction (HER) kinetics and poor catalytic stability. Herein, by mimicking the bulk‐heterojunction morphology of conventional organic solar cells, a uniform 10 nm scale nanocube is reported that consists subnanometer‐scale heterointerfaces between transition metal phosphides oxides, which serves an alkaline electrocatalyst;...
High-entropy metal oxides (HEOs) have recently received growing attention for broad energy conversion and storage applications due to their tunable properties. HEOs typically involve the combination of multiple cations in a single oxide lattice, thus bringing distinctive structures, controllable elemental composition, functional Many synthesis methods been reported, such as solid-state reactions carbon thermal shock methods. These frequently are energy-intensive or require relatively...
Abstract Among the substantial amount of photocatalyst materials, TiO 2 has been enthusiastically studied for a few decades due to its outstanding photocatalytic activity and stability. Recently, black consisting approximately nm thin disorder layer around surface showed surprisingly high solar hydrogen generation ability. The can enhance light absorption, charge separation, reaction abilities, however exact fundamentals water‐splitting pathways are still ambiguous. Herein, recent progress...
Cadmium sulfide (CdS) is a semiconducting absorber for photoelectrochemical (PEC) hydrogen production with suitable electronic band structures. However, it suffers from severe photocorrosion and rapid charge recombination during the desired PEC reactions. Herein, we describe identification of optimal junction thickness CdS/MoS2 core/sheath heterojunction nanostructures by employing atomic layer deposition (ALD) techniques. ALD-grown MoS2 sheath layers different thicknesses were realized on...
Abstract Nonprecious metal‐based 2D materials have shown promising electrocatalytic activity toward the oxygen evolution reaction (OER). However, catalytically active sites of are mainly presented at edge, and most their basal planes still inactive, which turns into a significant drawback on catalytic efficiency. Here, novel p–n heterojunction strategy is suggested that generates plane NiFe‐layered double hydroxide (NiFe‐LDH). The n‐type NiFe‐LDH first grown nickel foam (NF) substrate,...
Despite a longstanding controversy surrounding TiO2 materials, polymorphs with heterojunctions composed of anatase and rutile outperform individual because the type-II energetic band alignment at heterojunction interface. Improvement in photocatalysis has also been achieved via black thin disorder layer ordered TiO2. However, localization this conventional single nanoparticle remained big challenge. Here, we report selective positioning controlled thicknesses between phases by conceptually...
Abstract Hydrogen is a promising future sustainable fuel candidate with boundless opportunities. Research into photoelectrochemical (PEC) water splitting based on lead halide perovskite (LHP) has progressed significantly the aim of more efficient solar hydrogen production. Herein, we unite well‐known photo‐absorbing LHP cost‐effective water‐splitting catalysts, and introduce two types monolithic LHP‐based PEC devices that act as photocathode photoanode for evolution reaction oxygen reaction,...
There remains continued interest in improving the advanced water oxidation process [e.g., ultraviolet (UV)/hydrogen peroxide (H2O2)] for more efficient and environmentally friendly wastewater treatment. Here, we report design, fabrication, performance of graphene oxide (GO, on top)/nickel-doped iron oxyhydroxide (Ni:FeOOH, shell)/silicon nanowires (SiNWs, core) as a new multifunctional photocatalyst degradation common pollutants like polystyrene methylene blue through enhancing hydroxyl...
Although various highly active transition metal-based electrocatalysts have been identified for the anodic oxygen evolution reaction (OER) alkaline water electrolysis, necessity of a binder to coat onto conductive supports affects overall durability. Thus, developing active, durable, and binder-free anode is beneficial advancing electrolysis broader applications. This study presents new yet effective surface sulfidation method converting commercial FeNiCo alloy, Kovar, into stable, OER...
Abstract The use of the van der Waals (vdW) gap as an ion migration path, similar to cathode materials in lithium‐ion batteries, enables improved migration. If these also possess semiconductor properties, they can simultaneously control electron or hole transport. Such be used memtransistors, which combine memory and characteristics. However, existing rely on defects such grain boundaries paths, resulting high energy barriers switching voltages. Herein, memtransistors are demonstrated using...
There remains to be issues regarding radiofrequency catheter ablation (RFCA) in pediatric patients that are different those involving adults. This study was performed determine the efficacy and safety of RFCA patients.During period from 1992 2003, 2,734 underwent 131 who were < or =15 years old (70 males, mean age 12.0+/-3.1 years) analyzed, retrospectively. The number accessory pathways (APs) mediating atrioventricular re-entrant tachycardia 93 (71.4%) nodal (AVNRT) 27 (20.5%). most common...
α-Fe2O3 is considered as one of the most suitable materials for photoelectrochemical (PEC) water oxidation due to its appropriate band gap energy, positions, and abundance. However, short hole diffusion length (2–4 nm) a long-term problem be solved. Here, core–shell-structured ultrathin on mesoporous WO3 photoanode was fabricated by atomic layer deposition (ALD) achieve minimal charge recombination, which main reason lower PEC performance α-Fe2O3. A facile drop-casting method adopted produce...