186 citations · 1.9k across the 51 of their papers we have counts for
51 papers
Nanolamellar Hybrid High-Entropy Alloys with Superior Micromechanical Properties
Shivam Dangwal, Yoji Mine, Shohei Ueki +5
Metallic materials with nanolamellar structures, such as pearlitic steels, exhibit high strength with appropriate ductility. Considering the potential ability of such nanolamellar…
Thermal and electrical conductivity of a refractory high-entropy alloy after high-pressure torsion: Electron versus phonon contributions
Jacqueline Hidalgo-Jimenez, Payam Edalati, Md Amirul Islam +3
The equiatomic refractory high-entropy alloy TiZrHfNbTa was processed by high-pressure torsion (HPT) to investigate the effect of nanostructuring and defect engineering on thermal…
High-entropy perovskites, architectured by s0/d0/d10 cations, as novel electrolytes for solid oxide fuel cells
Ho Truong Nam Hai, Rishad Kunafiev, Kwati Leonard +1
Solid oxide fuel cells enable efficient conversion of hydrogen into electricity. However, the limited availability of materials for their cathode, anode, and electrolyte remains a…
Sustainable photocatalytic CO2 conversion using microalgae as a carbon-negative scavenger
Ho Truong Nam Hai, Augusto Ducati Luchessi, Makoto Arita +2
Photocatalytic CO2 conversion driven by solar energy is a highly promising approach in addressing rising atmospheric CO2 levels; however, its practical application remains limited…
Machine learning via artificial neural networks coupled with density functional theory and experiments for thermodynamic optimization of high-entropy alloys for hydrogen storage at room temperature
Shivam Dangwal, Pranav Kumar, Yuji Ikeda +2
High-entropy alloys (HEAs) have received considerable attention for hydrogen storage because of their compositional flexibility; however, designing HEAs with optimal thermodynamics…
Magnesium-graphene interphase boundaries created by high-pressure torsion enhance hydrogen storage kinetics:Mechanisms and significance of activation energy and frequency factor
Runchen Zhou, Payam Edalati, Anthony Alhayek +6
A strategy to overcome sluggish hydrogenation/dehydrogenation of magnesium is demonstrated by creating magnesium-graphene interphase boundaries via high-pressure torsion (HPT). HPT…
A sustainable photocatalytic pathway for concurrent hydrogen and value-added chemical production utilizing microalgae as bio-scavenger in water
Ho Truong Nam Hai, Augusto Ducati Luchessi, Kaveh Edalati
Microalgae are an abundant bioorganic material source and play a significant role in life on Earth by conducting photosynthesis for carbon dioxide (CO2) capture and its conversion…
High-Pressure Torsion-Induced Transformation of Adenosine Monophosphate: Insights into Prebiotic Chemistry of RNA by Astronomical Impacts
Kaveh Edalati, Jacqueline Hidalgo-Jimenez, Thanh Tam Nguyen
The origin of life is yet a compelling scientific mystery that has sometimes been attributed to high-pressure impacts by small solar system bodies such as comets, meteoroids, aster…
Hydrogen diffusion in TiCrH Laves phases: A combined ab initio and machine-learning-potential study
Pranav Kumar, Fritz Körmann, Kaveh Edalati +2
The kinetics of hydrogen diffusion in C15 cubic and C14 hexagonal TiCrH (0 < <= 4) Laves-phase hydrogen storage alloys is investigated with density functional theory (D…
Active high-entropy photocatalyst designed by incorporating alkali metals to achieve d0+d10+s0 cationic configurations and wide electronegativity mismatch
Jacqueline Hidalgo-Jimenez, Taner Akbay, Tatsumi Ishihara +1
Photocatalytic hydrogen (H2) production and carbon dioxide (CO2) conversion to methane (CH4) are considered promising solutions for reducing CO2 emissions. However, the development…
High-entropy perovskites as new photocatalysts for cocatalyst-free water splitting
Ho Truong Nam Hai, Makoto Arita, Kaveh Edalati
The photocatalytic water-splitting process is thermodynamically challenging and requires catalysts with suitable band structures, as well as the presence of supporting cocatalysts.…
Understanding high photocatalytic activity of the TiO2 high-pressure columbite phase by experiments and first-principles calculations
Jacqueline Hidalgo-Jimenez, Taner Akbay, Tatsumi Ishihara +1
The clean production of hydrogen as a zero-emission fuel can be done using photocatalysis, with TiO2 being one of the most promising photocatalysts. However, the activity of TiO2 a…
High-entropy oxide photocatalysts for green ammonia synthesis from nitrogen fixation in water
Thanh Tam Nguyen, Jacqueline Hidalgo-Jimenez, Kaveh Edalati
Ammonia, a critical chemical fertilizer and a potential hydrogen carrier, can be sustainably synthesized from atmospheric nitrogen and water under ambient conditions through photoc…
Boosting hydrogen and methane formation on a high-entropy photocatalyst by integrating atomic d0/d10 electronic junctions and microscopic P/N heterojunctions
Ho Truong Nam Hai, Jacqueline Hidalgo-Jiménez, Kaveh Edalati
The formation of green energy carriers such as hydrogen (H2) and methane (CH4) via photocatalytic processes provides a clean method for addressing environmental and energy issues.…
Bulk Nanostructured Zirconia Ceramics with High Hardness and Toughness via Integration of High-Pressure Torsion and Spark Plasma Sintering
Kaveh Edalati, Koji Morita, Shivam Dangwal +1
Developing nanostructured bulk ceramics is a major challenge when conventional high-temperature sintering is employed for consolidation. In the current investigation, yttria-stabil…
Influence of interphase boundary coherency in high-entropy alloys on their hydrogen storage performance
Shivam Dangwal, Kaveh Edalati
High-entropy alloys (HEAs) have potential for storing hydrogen reversibly at room temperature due to their tunable thermodynamics; however, they usually suffer from the issue of di…
Severe Plastic Deformation of Ceramics by High-Pressure Torsion: Review of Principles and Applications
Kaveh Edalati, Jacqueline Hidalgo-Jiménez, Thanh Tam Nguyen +8
Ceramics are typically brittle at ambient conditions due to their covalent or ionic bonding and limited dislocation activities. While plasticity, and occasionally superplasticity,…
Influence of nanostructuring through high-pressure torsion (HPT) on superconductivity of a high-entropy alloy
Kaveh Edalati, Alexy Bertrand, Payam Edalati +3
High-entropy alloys (HEAs) have emerged as favorable choices for different applications, including superconductors. The present work examines the impact of nanostructuring via high…
Boosting biocompatibility and mechanical property evolution in a high-entropy alloy via nanostructure engineering and phase transformations
Thanh Tam Nguyen, Payam Edalati, Shivam Dangwal +5
High-entropy alloys (HEAs), as multi-component materials with high configurational entropy, have garnered significant attention as new biomaterials; still, their low yield stress a…
Superior electrochemical performance of zinc-ion batteries with fine-grained and textured zinc anode produced by high-pressure torsion
Xinxin Hu, Shivam Dangwal, Xucheng Wang +4
Zinc-ion batteries are promising alternatives to lithium-ion batteries, offering advantages in safety, cost, and environmental impact. However, their performance is often limited b…
Photocatalytic Carbon Dioxide Methanation by High-Entropy Oxides: Significance of Work Function
Jacqueline Hidalgo-Jiménez, Taner Akbay, Xavier Sauvage +2
Methane (CH4) formation from photocatalytic carbon dioxide (CO2) conversion in water is currently of interest because methane is a fuel, and it can also be transformed into other u…
Phase and sulfur vacancy engineering in cadmium sulfide for boosting hydrogen production from catalytic plastic waste photoconversion
Thanh Tam Nguyen, Jacqueline Hidalgo-Jiménez, Xavier Sauvage +3
Cadmium sulfide (CdS) is a well-known low-bandgap photocatalyst, but its efficiency is often hindered by rapid photo-generated carrier recombination and a limited number of active…
Mixed atomic-scale electronic configuration as a strategy to avoid cocatalyst utilization in photocatalysis by high-entropy oxides
Jacqueline Hidalgo-Jiménez, Taner Akbay, Xavier Sauvage +2
To enhance the activity of photocatalysts for hydrogen production and CO2 conversion, noble metal cocatalysts as electron traps and/or acceptors such as platinum or gold are usuall…
Developing a single-phase and nanograined refractory high-entropy alloy ZrHfNbTaW with ultrahigh hardness by phase transformation via high-pressure torsion
Shivam Dangwal, Kaveh Edalati
High-entropy alloys (HEAs) are potential candidates for applications as refractory materials. While dual-phase refractory HEAs containing an ordered phase exhibit high hardness, th…