A5002076591- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced materials and composites
- Electrocatalysts for Energy Conversion
- Nanoporous metals and alloys
- Aluminum Alloys Composites Properties
- Cellular and Composite Structures
- Fuel Cells and Related Materials
- Microstructure and mechanical properties
- Microstructure and Mechanical Properties of Steels
- Advanced Battery Materials and Technologies
- Titanium Alloys Microstructure and Properties
- Advanced Photocatalysis Techniques
- Intermetallics and Advanced Alloy Properties
- Magnetic Properties and Synthesis of Ferrites
- Advanced ceramic materials synthesis
- Advanced battery technologies research
- Copper-based nanomaterials and applications
- Hydrogen embrittlement and corrosion behaviors in metals
- High Temperature Alloys and Creep
- Electronic Packaging and Soldering Technologies
- Corrosion Behavior and Inhibition
- Metal and Thin Film Mechanics
- Electrochemical sensors and biosensors
- High-Temperature Coating Behaviors
Kookmin University
2015-2024
Institute of Mechanics of Metal-Polymer Systems
2020
Euphrosyne Polotskaya State University
2020
Sejong University
2017
Vellore Institute of Technology University
2017
Northwestern University
2003-2005
Lawrence Berkeley National Laboratory
2001
University of California, Irvine
1997
Pennsylvania State University
1985
Although different kinds of metal oxide nanoparticles continue to be proposed as anode materials for lithium ion batteries (LIBs), their cycle life and power density are still not suitable commercial applications. Metal have a large storage capacity, but they suffer from the excessive generation solid–electrolyte interphase (SEI) on surface, low electrical conductivity, mechanical degradation pulverization resulted severe volume expansion during cycling. Herein we present preparation...
The effect of relative density on the hardness and fracture toughness Al‐substituted cubic garnet Li 6.19 Al 0.27 La 3 Zr 2 O 12 ( LLZO ) was investigated. Polycrystalline made using solid‐state synthesis hot‐pressing. controlled by varying densification time at fixed temperature (1050°C) pressure (62 MP a). After hot‐pressing, average grain size varied from approximately 2.7–3.7 μm for 85% 98% samples, respectively. Examination surfaces revealed a transition inter‐ to intragranular as...
Abstract Demands for sustainable production of hydrogen are rapidly increasing because environmental considerations fossil fuel consumption and development cell technologies. Thus, the high‐performance economical catalysts has been extensively investigated. In this study, a nanoporous Mo carbide electrode is prepared using top‐down electrochemical process it applied as an electrocatalyst evolution reaction (HER). Anodic oxidation foil followed by heat treatment in carbon monoxide (CO)...
In modern farming, pesticides are extensively used to deliver high-yield harvests with no concern about the amount of toxicity involved in agriculture process. The continuous usage also causes severe health issues for human health. Thus, promoting a rapid and accurate method ultrasensitive low-level detection toxic is essential real food samples avoid serious issues. Herein, we successfully synthesized graphene oxide (GO) incorporated dysprosium stannate nanoplatelets (Dy2Sn2O7) through...
Abstract Although numerous reports on nonprecious metal catalysts for replacing expensive Pt-based have been published, few of these studies demonstrated their practical application in fuel cells. In this work, we report graphitic carbon nitride and nanofiber hybrid materials synthesized by a facile gram-scale method via liquid-based reactions, without the use toxic or high pressure-high temperature reactor, as cell cathodes. The resulting exhibited remarkable methanol tolerance, selectivity...
Abstract Nanostructured metal oxide semiconductors have shown outstanding performances in photoelectrochemical (PEC) water splitting, but limitations light harvesting and charge collection necessitated further advances photoelectrode design. Herein, we propose anodized Fe foams (AFFs) with multidimensional nano/micro‐architectures as a highly efficient for PEC splitting. fabricated by freeze‐casting sintering were electrochemically directly used photoanodes. We verified the superiority of...
In spite of their high conversion efficiency and no emission greenhouse gases, polymer electrolyte membrane fuel cells (PEMFCs) suffer from prohibitively cost insufficient life-span core component system, the electrode assembly (MEA). this paper, we are proposing Ti foam as a promising alternative material in MEA. Indeed, it showed current density 462 mA cm–2, being ca. 166% higher than that with baseline Toray 060 gas diffusion layer (GDL) (278 cm–2) 200 ccm oxygen supply at 0.7 V, when...
Abstract A three-dimensional porous architecture makes an attractive electrode structure, as it has intrinsic structural integrity and ability to buffer stress in lithium-ion batteries caused by the large volume changes high-capacity anode materials during cycling. Here we report first demonstration of a SnO 2 -coated macroporous Cu foam employing facile scalable combination directional freeze-casting sol-gel coating processes. The interconnected is composed aligned microscale channels...
The energy stored in severely deformed ultrafine-grained (UFG) 316L stainless steel was investigated by differential scanning calorimetry (DSC). A sample processed high-pressure torsion (HPT) for N = 10 turns. In the DSC thermogram, two peaks were observed. first peak exothermic and related to annihilation of vacancies dislocations. During this recovery, phase composition average grain size practically unchanged. dislocations calculated compared with heat released peak. difference...
Numerous researchers are fascinated by magnetic spinel ferrites because they promising candidates for many application fields. The cobalt ferrite (CoFe2O4) has unique features it exhibits various redox states, excellent permeability, and superior electrochemical stability. In this study, nanoparticles were synthesized via sol–gel combustion. average crystallite size was 43 52 nm lattice parameters of 8.318 8.321 Å, respectively. addition, Fourier transform infrared (FTIR) spectra recorded to...