A5024947859- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advancements in Battery Materials
- Electrochemical Analysis and Applications
- Carbon and Quantum Dots Applications
- Advanced Photocatalysis Techniques
- Graphene and Nanomaterials Applications
- Advanced Nanomaterials in Catalysis
- Ovarian cancer diagnosis and treatment
- Nanocluster Synthesis and Applications
- Nanomaterials for catalytic reactions
- Machine Learning in Materials Science
- Supercapacitor Materials and Fabrication
- Catalytic Processes in Materials Science
Sungkyunkwan University
2022-2025
Abstract Combining an electrochemically stable material onto the surface of a catalyst can improve durability transition metal catalyst, and enable to operate stably at high current density. Herein, contribution N‐doped carbon shell (NCS) electrochemical properties is evaluated by comparing characteristics Ni 3 Fe@NCS with shell, Fe catalyst. The synthesized has distinct overpotential difference from ( η OER = 468.8 mV, HER 462.2 mV) (200 −200) mA cm −2 in 1 m KOH. In stability test (10 −10)...
The development of a hierarchical structure Co/Co 4 N@NC has been successfully achieved. robust oxygen evolution reaction activity is attributed to the modulation d-band center, which reconstruct Co 2+ into 3+ .
Highly efficient water splitting electrocatalyst for producing hydrogen as a renewable energy source offers potential to achieve net-zero. However, it has significant challenges in using transition metal electrocatalysts alternatives noble metals due their low efficiency and durability, furthermore, the reliance on electricity generation from fossil fuels leads unavoidable carbon emissions. Here, highly self-powered system integrated is designed with triboelectric nanogenerator (TENG) Ni
To obtain environment-friendly and renewable hydrogen energy, research is being actively conducted towards lowering the evolution reaction (HER) energy barrier through various modifications to surface of a transition metal bimetal electrochemical catalyst. Herein, we report development highly N-doped carbon shell-encapsulated cobalt iron nano cube (CoFe@HNCS) fine-tuning nitrogen-doping content in shell. The pyridinic N-rich shell, achieved by adding melamine electrostatic interactions,...
The advance of efficient electrocatalysts for electrochemical water splitting is highly significant the energy conversion system, but hindered by high overpotential oxygen evolution reaction (OER) four-electron transfer. Herein, we report a variation transition metal compound based on Co–Fe Prussian blue analogue (PBA) precursor. CoP/FeP, Co 2 N/Fe 3 N, and CoFe catalysts are synthesized in N atmosphere phosphorization, nitridation, calcination, respectively. After mesoporous CoP/FeP...
It is necessary to fabricate an oxygen evolution reaction (OER) and hydrogen (HER) catalyst that can be used in electrolyte (alkaline, acidic) using earth abundant resources. Herein, we synthesized Ni2P/Fe2P@NPC hydrothermal synthesis phosphide process. Phosphorus combined with transition metal improve catalytic performance electrical conductivity. In the carbon shell, dopamine containing nitrogen doped form N, P co-doping, providing more active sites. The stability enhancement due shell...
The advance of efficient electrocatalysts for electrochemical water splitting is highly significant the energy conversion system, but hindered by high overpotential oxygen evolution reaction (OER) four-electron transfer. Herein, we report a variation transition metal compound based on Co–Fe Prussian blue analogue (PBA) precursor. CoP/FeP, Co2N/Fe3N, and CoFe catalysts are synthesized in N2 atmosphere phosphorization, nitridation, calcination, respectively. After mesoporous CoP/FeP nanocubes...
It is necessary to fabricate an oxygen evolution reaction (OER) and hydrogen (HER) catalyst that can be used in the electrolyte (alkaline, acidic) using earth abundant resources. Herein, we fabricated Ni2P/Fe2P@NPC hydrothermal synthesis phosphide process. Phosphorus combined with a transition metal improve catalytic performance electrical conductivity. In addition, forming carbon shell on surface of doping phosphorus contribute improvement electrochemical stability. N P are co-doped provide...