A5100383956- Muon and positron interactions and applications
- Fusion materials and technologies
- Ion-surface interactions and analysis
- ZnO doping and properties
- Membrane Separation and Gas Transport
- Graphene research and applications
- Nuclear Materials and Properties
- Advancements in Battery Materials
- Ammonia Synthesis and Nitrogen Reduction
- Metal and Thin Film Mechanics
- Copper Interconnects and Reliability
- Semiconductor materials and devices
- Radiation Detection and Scintillator Technologies
- Catalytic Processes in Materials Science
- Smart Grid and Power Systems
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
- Intermetallics and Advanced Alloy Properties
- Microstructure and mechanical properties
- Ga2O3 and related materials
- Access Control and Trust
- Advanced Computational Techniques and Applications
- MXene and MAX Phase Materials
- Smart Grid Security and Resilience
- Power Systems and Technologies
Institute of High Energy Physics
2016-2025
Nankai University
2022-2025
Xi'an Polytechnic University
2021-2025
Huazhong University of Science and Technology
2022-2025
Tongji Hospital
2022-2025
Henan Polytechnic University
2025
Huashan Hospital
2025
Fudan University
2025
The University of Texas at Dallas
2025
Xidian University
2019-2024
CeO2 is a catalytic material of exceptional technological importance, and the precise role oxygen vacancies crucial to greater understanding these oxide materials. In this work, two ceria nanorod samples with different types distributions were synthesized. A direct relationship between concentration larger size vacancy clusters reducibility/reactivity nanosized was revealed. These results may be an important step in designing active sites at surface metal
We demonstrate, both theoretically and experimentally, that cation vacancy can be the origin of ferromagnetism in intrinsic dilute magnetic semiconductors. The vacancies controlled to tune ferromagnetism. Using Li-doped ZnO as an example, we found while Li itself is nonmagnetic, it generates holes ZnO, its presence reduces formation energy Zn vacancy, thereby stabilizes zinc vacancy. Room temperature with p type conduction was observed pulsed laser deposited ZnO:Li films certain doping...
Drying is an important factor in the formation of green tea flavor. In this study, metabolomic analysis were used to detect characteristic components four teas with clean aroma (CA), chestnut-like (CLA), bean-like (BLA) and high-fired (HFA) produced by adjusting drying temperature. The sensory evaluation results showed that dried at 90°C, 110°C, 140°C 160°C had a aroma, respectively. A total 95 volatile compounds identified. Linalool, naphthalene, 2-methyl-naphthalene, 1-octen-3-ol...
An intrinsic plastic ${\mathrm{Cu}}_{45}{\mathrm{Zr}}_{46}{\mathrm{Al}}_{7}{\mathrm{Ti}}_{2}$ bulk metallic glass (BMG) with high strength and superior compressive strain of up to 32.5% was successfully fabricated by copper mold casting. The attributed a large amount randomly distributed free volume induced Ti minor alloying, which results in extensive shear band formation, branching, interaction self-healing cracks. mechanism plasticity presented here suggests that the creation BMGs...
How to achieve supported metal nanocatalysts with simultaneously enhanced activity and stability is of vital importance in heterogeneous catalysis remains a challenging goal. In this work, surface defect-promoted Ni nanocatalyst high dispersion particle density embedded on hierarchical Al2O3 matrix was fabricated via facile method involving an situ reduction process, which exhibits excellent for the reaction CO2 methanation. HRTEM, HAADF-STEM, EXAFS, positron annihilation spectroscopy...
An environmentally benign Cu–Ce–Ti oxide catalyst exhibited excellent NH3-SCR activity, high N2 selectivity and strong resistance against H2O SO2 with a broad operation temperature window. The dual redox cycles (Cu2+ + Ce3+ ↔ Cu+ Ce4+, Cu2+ Ti3+ Ti4+) play key roles for the superior catalytic deNOx performance.
We demonstrate that dopamine is able to self-polymerize and adhere firmly onto the substrate, which can create a hierarchical structure comprising an ultrathin active layer porous support layer. Such approach opens novel way fabricating highly efficient stable composite materials including membranes. More specifically, in this study membranes are fabricated by simply dipping microporous substrate aqueous solution under mild conditions. Nanoindentation measurement reveals tight adhesion of...
The effect of oxygen vacancies on the performance CoO as a cathode catalyst for Li–O<sub>2</sub> batteries has been investigated.
Defect-induced magnetism is firstly observed in neutron irradiated SiC single crystals. We demonstrated that the intentionally created defects dominated by divacancies (V(Si)V(C)) are responsible for magnetism. First-principles calculations revealed defect states favor formation of local moments and extended tails wave functions make long-range spin couplings possible. Our results confirm existence defect-induced magnetism, implying possibility tuning wide band-gap semiconductors engineering.
The goal of replenishing the cardiomyocyte (CM) population using regenerative therapies following myocardial infarction (MI) is hampered by limited regeneration capacity adult CMs, partially due to their withdrawal from cell cycle. Here, we show that microRNA-128 (miR-128) upregulated in CMs during postnatal switch proliferation terminal differentiation. In neonatal mice, cardiac-specific overexpression miR-128 impairs CM and cardiac function, while deletion extends enhancing expression...
A family of photocatalysts for water splitting into hydrogen was prepared by distributing TiO(6) units in an MTi-layered double hydroxide matrix (M = Ni, Zn, Mg) that displays largely enhanced photocatalytic activity with H(2)-production rate 31.4 μmol h(-1) as well excellent recyclable performance. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) mapping and XPS measurement reveal a high dispersion octahedra the layered doubled (LDH) obtained formation...
ZnO films became ferromagnetic when defects were introduced by thermal-annealing in flowing argon. This ferromagnetism, as shown the photoluminescence measurement and positron annihilation analysis, was induced singly occupied oxygen vacancy with a saturated magnetization dependent positively on amount of this vacancy. study clarified origin ferromagnetism un-doped thin provides possibly an alternative way to prepare films.
Finely dispersed Pd nanoparticles (PdNPs) anchored to CoAl layered double hydroxide nanowalls (LDH-NWs) have been fabricated via a facile in situ redox reaction between the LDH-NWs and PdCl42− precursor. The integrated play roles of both hierarchical support reductant without any external agent, ensuring cleanness metal–support interface. Based on effective exposure active sites elaborate network architecture, Pd/LDH-NW heterogenous material yields largely improved catalytic activity as well...
For the selective water-permeation across dense membrane, constructing continuous pathways with high-density ionic groups are of critical significance for preferential sorption and diffusion water molecules. In this study, zwitterionic graphene oxides (PSBMA@GO) nanosheets were prepared incorporated into sodium alginate (SA) membrane efficient permeation water/alcohol separation. The two-dimensional GO provides pathway, while on confer electrostatic interaction sites molecules, leading to...
Abstract Catalytic oxidation of o-xylene was investigated on CeO 2 nanocubes calcined at 350, 450, 550, and 650 °C, among which the samples 550 °C exhibited highest activity long durability. Positron annihilation spectroscopy measurements revealed that size distribution oxygen vacancies for could be tuned by carefully controlling calcination temperature. An excellent linear correlation between a factor related to density vacancy clusters reaction rate ceria nanocubes. This means with...
Grid-scale energy storage is essential for reliable electricity transmission and renewable integration. Redox flow batteries (RFB) provide affordable scalable solutions stationary storage. However, most of the current RFB chemistries are based on expensive transition metal ions or synthetic organics. Here, we report a reversible chlorine redox battery starting from electrolysis aqueous NaCl electrolyte as-produced Cl2 extracted stored in carbon tetrachloride (CCl4) mineral spirit flow. The...