A5103016220- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Photosynthetic Processes and Mechanisms
- Electrocatalysts for Energy Conversion
- Ionic liquids properties and applications
- Advanced Thermoelectric Materials and Devices
- Advanced Nanomaterials in Catalysis
- Carbon dioxide utilization in catalysis
- Chemical Synthesis and Analysis
- Bone Tissue Engineering Materials
- Energy Harvesting in Wireless Networks
- Microbial Fuel Cells and Bioremediation
- Seismic and Structural Analysis of Tall Buildings
- Education and Learning Interventions
- Wireless Power Transfer Systems
- Copper-based nanomaterials and applications
- 2D Materials and Applications
- Bone Metabolism and Diseases
- Ammonia Synthesis and Nitrogen Reduction
- Psychosocial Factors Impacting Youth
- Photoreceptor and optogenetics research
- Bone health and osteoporosis research
- Porphyrin and Phthalocyanine Chemistry
- Polydiacetylene-based materials and applications
- Grit, Self-Efficacy, and Motivation
Seoul National University
2013-2020
Government of the Republic of Korea
2017-2020
Korea Institute of Science and Technology
2019-2020
Seoul Institute
2017-2020
In real-time measurements, CO dimerization occurred concurrently with adsorption (∼5 s), while proton-coupled reduction toward *CHO has slower kinetics (∼30 s).
The synthesis of pure whitlockite (WH: Ca18Mg2(HPO4)2(PO4)12) has remained a challenge even though it is the second most abundant inorganic in living bone. Although few reports about precipitation WH heterogeneous phases have been published, to date, synthesizing without utilizing any effects buffer or various other ions remains difficult. Thus, related research fields encountered difficulties and not fully developed. Here, we developed large-scale method for nanoparticles ternary...
Abstract The conversion of carbon dioxide (CO 2 ) to valuable fuels and chemicals offers a new pathway for sustainable clean fixation. Recently, the focus has been on electrochemical CO reduction heterogeneous electrode catalysts, leading remarkable achievements in reaction performance. To date, monoxide (CO) is considered as most promising candidate industrial market, owing its high efficiency reasonable technoeconomic feasibility. Moreover, proposed key intermediate species further reduced...
The reduction of carbon dioxide (CO 2 ) into chemical feedstock is drawing increasing attention as a prominent method recycling atmospheric CO . Although many studies have been devoted in designing an efficient catalyst for conversion with noble metals, low selectivity and high energy input still remain major hurdles. One possible solution to use the combination earth‐abundant electrocatalyst photoelectrode powered by solar energy. Herein, first time, p‐type silicon nanowire nitrogen‐doped...
Efficient photoelectrochemical hydrogen production is demonstrated by sulphur-doped molybdenum phosphide/p-Si heterojunctions.
The so‐called Z‐scheme is a means of utilizing photo‐induced electrons from photosystem and has consistently motivated the design synthetic photocatalytic systems. Although progress been made in many pioneering studies on an inorganic‐based Z‐scheme, there have no reports hybrid for inorganic photosystem. Here, demonstrated by integrating platinized I (PSI) BiVO 4 hydrogen production. Up to now, PSI‐driven systems limited one‐step photoreduction reaction using sacrificial reductants. In this...
Abstract The carboxylation of hydrocarbons using CO 2 as a one‐carbon building block is an attractive route for the synthesis carboxylic acids and their derivatives. Until now, chemical catalyzed by organometallic nucleophiles reductants has been generally adopted particularly precise selectivity control sites. As another approach, electrochemical attempted but these reactions are limited to only few pathways. In case styrene, dicarboxylation at α‐ β‐positions mostly observed with while...
A porphyrin–peptoid‐hybridized silica‐coated gold nanoparticle is developed, which inspired by the protein–chlorophyll ensemble found in photosynthetic antenna. In natural antenna, chlorophylls are integrated into dense assemblies that supported frameworks of proteins, ensure optimal pigment arrangement for effective light harvesting. subject platform, porphyrins conjugated to peptoid helix scaffold a structurally well‐defined alignments and subsequently immobilized on surface nanoparticles....
A number of implantable biomedical devices have been developed, and wireless power transfer (WPT) systems are emerging as a way to provide these without requiring hardwired connection. Most the WPT has based on conventional conductive materials, such metals, which tend be less biocompatible stiff. Herein, we describe development an ionic (IWPT) system using hydrogel receivers that soft biocompatible. Although receiver lower conductivity than metal (ρgel/ρmetal ∼ 10–7), capacitive coupling...
It's been a decade since post-tension system began to be applied in earnest buildings Korea. In the meantime, has used various as main structural including tall buildings. And plays role overcome architectural limit of regular RC particularly realization long span with shallower depth than other system. The post-tensioned building market Korea steadily grown recent years such advantage. Recently, technology is adapted for special members like belt walls. this paper, authors would explain...
In the Z-scheme of photosynthesis, two photosynthetic proteins, photosystem II and I, excite electrons step-wise using light energy. On page 2369, K. T. Nam team report a hybrid I BiVO4 semiconductor. this study, charge separation in enables production hydrogen from only water under visible light, for first time.
We synthesized transferrable and transparent anion-engineered molybdenum disulfide thin-film catalysts through a simple thermolysis method by using [(NH 4 ) 2 MoS ] solution powder precursors with different sulphur/phosphorus weight ratios. The sulphur-doped phosphide (S:MoP) thin film changed from two-dimensional van der Waals structure to three-dimensional hexagonal introduction of phosphorus atoms in the film. S:MoP/p-Si heterojunction photocathodes showed high photocurrent density (33.13...