A5037607416- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Ammonia Synthesis and Nitrogen Reduction
- X-ray Diffraction in Crystallography
- Metallic Glasses and Amorphous Alloys
- Hydrogen Storage and Materials
- Supercapacitor Materials and Fabrication
- Inorganic Chemistry and Materials
- Material Dynamics and Properties
- Advanced battery technologies research
- Glass properties and applications
- High Entropy Alloys Studies
- Phase-change materials and chalcogenides
- Hybrid Renewable Energy Systems
- Advanced Battery Technologies Research
- Nanomaterials for catalytic reactions
- Industrial Gas Emission Control
- Machine Learning in Materials Science
- CO2 Reduction Techniques and Catalysts
- Nuclear Physics and Applications
- High-Temperature Coating Behaviors
- Metal and Thin Film Mechanics
- Chalcogenide Semiconductor Thin Films
Japan Synchrotron Radiation Research Institute
2022-2025
SPring-8
2022-2025
Shenzhen University
2020-2025
Deutsches Elektronen-Synchrotron DESY
2018-2022
Max-Planck-Institut für Kohlenforschung
2014-2017
Max Planck Society
2014-2016
Ruhr West University of Applied Sciences
2015
Centre Européen de la Céramique
2014
Applied Materials (United States)
1996
Zinc-iodine aqueous batteries (ZIABs) are highly attractive for grid-scale energy storage due to their high theoretical capacities, environmental friendliness, and intrinsic non-flammability. However, because of the close redox potential Zn stripping/platting hydrogen evolution, slight overcharge ZIABs would induce drastic side reactions, serious safety concerns, battery failure. A novel type stimulus-responsive zinc-iodine (SR-ZIAB) with fast self-protection ability is demonstrated by...
Abstract Developing low‐cost single‐atom catalysts (SACs) with high‐density active sites for oxygen reduction/evolution reactions (ORR/OER) are desirable to promote the performance and application of metal–air batteries. Herein, Fe nanoparticles precisely regulated single atoms supported on waste biomass corn silk (CS) based porous carbon ORR OER. The distinct hierarchical structure hollow tube morphology critical boosting ORR/OER through exposing more accessible sites, providing facile...
Ni-rich layered oxides are one of the most attractive cathode materials in high-energy-density lithium-ion batteries, their degradation mechanisms still not completely elucidated. Herein, we report a strong dependence pathways on long-range cationic disordering Co-free Li1-m (Ni0.94 Al0.06 )1+m O2 (NA). Interestingly, disordered phase with lattice mismatch can be easily formed near-surface region NA particles very low cation disorder (NA-LCD, m≤0.06) over electrochemical cycling, while...
The rational design of Fe-N-C catalysts that possess easily accessible active sites and favorable mass transfer, which are usually determined by the structure catalyst supports, is crucial for oxygen reduction reaction (ORR). In this study, an oleic acid-assisted soft-templating approach developed to synthesize size-controlled nitrogen-doped carbon nanoparticles (ranging from 130 nm 60 35 nm, respectively) feature spiral mesopores on their surface (SMCs). Next, atomically dispersed Fe-Nx...
Nanoscopic gold particles have gained very high interest because of their promising catalytic activity for various chemicals reactions. Among these reactions, low-temperature CO oxidation is the most extensively studied one due to its practical relevance in environmental applications and fundamental problems associated with at low temperatures. Gold nanoparticles supported on manganese oxide belong active catalysts oxidation. a variety oxides, Mn2O3 considered be favorable support respect...
Tuning the active site structure of metal-nitrogen-carbon electrocatalysts has recently attracted increasing interest. Herein, we report a bottom-up synthesis strategy in which atomically regulated N-doped polycyclic aromatic hydrocarbons (N-PAHs) N
The deformations of isotropic and anisotropic Ti-6Al-4V columnar structures fabricated by additive manufacturing were extensively examined. distinct texture microstructure distributions characterised. In situ X-ray diffraction measurements show different lattice activities resulting from the distributions. Spatially resolved mapping revealed manufacturing-induced crystallite-orientation that determine deformation mechanisms. We propose a self-consistent model to correlate multi-scale...
A Cu precipitation-mediated austenitic transformation during ageing treatment of a 15–5 PH stainless steel is revealed through atom probe tomography, in situ synchrotron X-ray diffraction and computational thermodynamics kinetics. The proposed to occur the pathway: precipitation at martensite/retained austenite interfaces or martensite lath boundaries → partitioning stabilizing elements towards precipitates reverted formation.
Abstract With exceptional capacity during high‐voltage cycling, P3‐type Na‐deficient layered oxide cathodes have captured substantial attention. Nevertheless, they are plagued by severe degradation over cycling. In this study, tuning and optimizing the phase composition in oxides through Li incorporation proposed to enhance stability. The structural dependence of Na 2/3 x Ni 0.25 Mn 0.75 O 2+ δ on lithium content (0.0 ≤ 1.0) offered synthesis is investigated systematically an atomic scale....
Abstract The system Mg(NH 2 ) + 2LiH is considered as an interesting solid-state hydrogen storage material owing to its low thermodynamic stability of ca. 40 kJ/mol H and high gravimetric capacity 5.6 wt.%. However, kinetic barriers lead slow absorption/desorption rates even at relatively temperatures (>180 °C). In this work, we investigate the effects addition K-modified Li x Ti y O z on behaviour system. comparison with pristine 2LiH, containing a tiny amount nanostructured shows...
Flash-annealing (FA) of metallic glasses (MGs) allows one to modulate their disordered structure. Here, we have flash-annealed a CuZr-based MG below the glass transition temperature at different cycles and generated MGs with various heterogeneous structures. We quantified glassy structure via relaxation enthalpy, ΔrelH, which did not significantly change for low number cycles. Their hardness monotonically reduced. However, when more than ten FA were applied, perceivably decreased, while...
All-solid-state (ASS) batteries are a promising solution to achieve carbon neutrality. ASS lithium–sulfur (Li-S) stand out due their improved safety, achieved by replacing organic solvents, which prone leakage and fire, with solid electrolytes. In addition, these offer the benefits of higher capacity absence rare metals. However, low electronic conductivity sulfur poses major challenge for Li-S batteries. To address this challenge, is often combined porous carbon. Despite standard practice,...
FeM (M = Se, Te) chalcogenides have been well studied as promising magnets and superconductors, yet their potential electrocatalysts is often considered limited due to anion dissolution oxidation during electrochemical reactions. Here, we show that by using two-dimensional (2D) FeTeSe nanosheets, these conventionally perceived limitations can be leveraged enable the reaction-driven in-situ generation of anisotropic in-plane tensile out-of-plane compressive strains alkaline low-concentration...
Ethaline, a deep eutectic solvent (DES) composed of choline chloride (ChCl)-ethylene glycol (EG) in 1:2 molar ratio, is garnering significant interest for its wide potential applications. The nature liquid formation and the structure H-bonds within ethaline were investigated by X-ray scattering (XRS), neutron (NS), MD simulations. sum dissociation energy barriers Ch-EG (3.31 kJ·mol
The selenides of platinum-group metals (PGMs) are emerging as promising catalysts for diverse electrochemical reactions. To date, most studies have focused on single metal or bimetallic systems, whereas the preparation a high-entropy (HE) selenide consisting five more PGM elements holds promise to further enhance catalytic performance by introducing abundant active sites with various local coordination environments and electronic structures. Herein, we report first time synthesis PGM-based...
Abstract Li‐ and Mn‐rich layered oxides exhibit high specific capacity due to the cationic anionic reaction process during high‐voltage cycling (≥4.6 V). However, they face challenges such as low initial coulombic efficiency (~70 %) poor stability. Here, we propose a combination of H 3 BO treatment temperature calcination construct shell with vacancy on surface Li 1.2 Ni 0.2 Mn 0.6 O 2 (LLNMO). The produces lattice distortion, forming an oxidized n − (0< <2) surface, accompanied by...
Li- and Mn-rich layered oxides exhibit high specific capacity due to the cationic anionic reaction process during high-voltage cycling (≥4.6 V). However, they face challenges such as low initial coulombic efficiency (~70 %) poor stability. Here, we propose a combination of H3BO3 treatment temperature calcination construct shell with vacancy on surface Li1.2Ni0.2Mn0.6O2 (LLNMO). The produces lattice distortion, forming an oxidized On- (0<n<2) surface, accompanied by electrons redistribution....
Abstract Iron‐based catalysts for NH 3 decomposition have been studied by a combination of catalytic tests and in situ synchrotron diffraction experiments performed an inert sapphire plug‐flow cell. In contrast to steel‐based reaction cells, or quartz glass cells show no blind activity. Starting from iron oxide precursors, nitrides form during the activation cycle. Nitrides remain as main crystalline phases govern conversion subsequent cycles. this work structural compositional changes were...