A5020203580- Electrocatalysts for Energy Conversion
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- High Entropy Alloys Studies
- Metal and Thin Film Mechanics
- Metallic Glasses and Amorphous Alloys
- High-Temperature Coating Behaviors
- Numerical methods in engineering
- Catalytic Processes in Materials Science
- Supercapacitor Materials and Fabrication
- Graphene research and applications
- Nanoporous metals and alloys
- Electromagnetic Simulation and Numerical Methods
- Advanced Memory and Neural Computing
- nanoparticles nucleation surface interactions
- Advanced battery technologies research
- Advancements in Battery Materials
- Chalcogenide Semiconductor Thin Films
- Machine Learning in Materials Science
- Advanced Battery Materials and Technologies
- Intermetallics and Advanced Alloy Properties
- Advanced Photocatalysis Techniques
- Advanced Materials Characterization Techniques
- Thermal properties of materials
- Composite Material Mechanics
City University of Hong Kong
2014-2024
Harbin Institute of Technology
2016-2024
North China University of Science and Technology
2024
Shandong Jianzhu University
2022
City University of Hong Kong, Shenzhen Research Institute
2017-2018
Shanghai University
2012
Electrochemical water splitting offers an attractive approach for hydrogen production. However, the lack of high-performance cost-effective electrocatalyst severely hinders its applications. Here, a multinary high-entropy intermetallic (HEI) that possesses unusual periodically ordered structure containing multiple non-noble elements is reported, which can serve as highly efficient evolution. This HEI exhibits excellent activities in alkalinity with overpotential 88.2 mV at current density 10...
The trade-off of strength and ductility metals has long plagued materials scientists. To resolve this issue, great efforts have been devoted over the past decades to developing a variety technological pathways for effectively tailoring microstructure metallic materials. Here, we review recent advanced nanostructure design strategies purposely fabricating heterogeneous nanostructures in crystalline non-crystalline Several representative structural approaches are introduced, including (1)...
Abstract Developing highly efficient and durable electrocatalysts for hydrogen evolution reaction (HER) under both alkaline acidic media is crucial the future development of a economy. However, state‐of‐the‐art high‐performance recently developed are based on carbon carriers mediated by binding noble elements their complicated processing methods major impediment to commercialization. Here, inspired high‐entropy alloy concept with its inherent multinary nature using glassy design chemical...
Hydrogen energy is critical for achieving carbon neutrality. Heterostructured materials with single metal-atom dispersion are desirable hydrogen production. However, it remains a great challenge to achieve large-scale fabrication of atom-anchored heterostructured catalysts high stability, low cost, and convenience. Here, we report iron (Fe) atom-dispersed Mo-based nanosheets developed from mineral hydrogel. These rationally designed exhibit excellent evolution reaction (HER) activity...
Platinum-based electrocatalysts possess high water electrolysis activity and are essential components for hydrogen evolution reaction (HER). A major challenge, however, is how to break the cost-efficiency trade-off. Here, a novel defect engineering strategy presented construct nanoporous (FeCoNiB0.75 )97 Pt3 (atomic %) high-entropy metallic glass (HEMG) with nanocrystalline surface structure that contains large amounts of lattice distortion stacking faults achieve excellent electrocatalytic...
Machine-learned potentials (MLPs) have exhibited remarkable accuracy, yet the lack of general-purpose MLPs for a broad spectrum elements and their alloys limits applicability. Here, we present promising approach constructing unified MLP numerous elements, demonstrated through model (UNEP-v1) 16 elemental metals alloys. To achieve complete representation chemical space, show, via principal component analysis diverse test datasets, that employing one-component two-component systems suffices....
A novel vacancy-induced microstrain engineering strategy is developed in FeCoNiCrPt high-entropy alloy, enabling high activity and long lifetime hydrogen evolution under universal pH conditions.
Abstract High strength and high ductility are often mutually exclusive properties for structural metallic materials. This is particularly important aluminum (Al)-based alloys which widely commercially employed. Here, we introduce a hierarchical nanostructured Al alloy with structure of nanograins surrounded by nano-sized glass (MG) shells. It achieves an ultrahigh yield 1.2 GPa in tension (1.7 compression) along 15% plasticity (over 70% compression). The MG phase facilitates such impeding...
Abstract Metallic glass (MG), with the superiorities of unique disordered atomic structure and intrinsic chemical heterogeneity, is a new promising competitive member in family environmental catalysts. However, what at stake for MG catalysts that their high catalytic efficiency always accompanied by low stability configurations, as well structural evolution, related to performance, which raises primary obstacle widespread applications. Herein, non‐noble multicomponent Fe 83 Si 2 B 11 P 3 C 1...
Abstract The crystallographic phase is one of the most important parameters in determining physicochemical properties an electrocatalyst. However, existing understanding phase‐performance relationship still very limited, especially for unconventional phases. Herein, experimental discovery hexagonal close‐packed (hcp) Co 9 S 8 presented. This first demonstration , and through correlated computational data, to elucidate origin enhanced catalytic performance from this new phase. synthesized Fe...
Understanding the deformation behavior of metallic materials containing nanotwins (NTs), which can enhance both strength and ductility, is useful for tailoring microstructures at micro- nano- scale to mechanical properties. Here, we construct a clear pattern NTs in austenitic stainless steel by combining situ tensile tests with dislocation-based theoretical model molecular dynamics simulations. Deformation are observed using transmission electron microscope different sample regions...
A new type of high-entropy alloy with a composition Pt25Pd25Ni25P25 (at.%) and an amorphous structure, referred to as metallic glass (HEMG), was developed by scalable metallurgical technique for efficient hydrogen evolution reaction (HER). The achieved overpotential low 19.8 mV at current density 10 mA cm–2 while maintaining ultrareliable performance 60 h in 1.0 M KOH solution, exhibiting 5- 10-times higher than those traditional Pt60Ni15P25 Pd40Ni40P20 glasses, respectively, also surpassing...
Scaling up the production of cost-effective electrocatalysts for efficient water splitting at industrial level is critically important to achieve carbon neutrality in our society. While noble-metal-based materials represent a high-performance benchmark with superb activities hydrogen and oxygen evolution reactions, their high cost, poor scalability, scarcity are major impediments widespread commercialization. Herein, flexible freestanding Fe-based metallic glass (MG) an atomic composition...
The rational design of high-performance and cost-effective electrocatalysts to overcome the kinetically sluggish water oxidation reaction is a grand challenge in electrolysis. Transitional metals with incompletely filled d orbitals are expected have intrinsic electronic interaction promote kinetics, however, construction multiple active sites still bottleneck problem. Here, inspired by an amorphous alloy strategy chemical tunability, noble-metal-free FeCoMoPB nanoplate for superior alkaline...
In this work, UiO-66-based metal–organic frameworks are investigated as an oxygen reduction reaction (ORR) catalyst for the first time. UiO-66-NO2 is solvothermally grown on surface of cobalt phthalocyanine-anchored carbon nanotube (CoCNT) surface, serving "pump" to accelerate (ORR). The UiO-66-NO2-attached CoCNT (UiO-66-NO2@CoCNT) exhibits superior electrochemical catalytic properties, exceeding state-of-the-art commercial 20% Pt/C with more positive half-wave potential (15 mV difference,...
This study develops an ordinary state-based peridynamic coarse-graining (OSPD-CG) model for the investigation of fracture in single-layer graphene sheets (SLGS), which (PD) parameters are derived through combining PD and molecular dynamics (MD) simulations from fully atomistic system via energy conservation. The failure pre-cracked SLGS under uniaxial tension is studied using proposed model. And simulation results agree well with those MD simulations, including stress-strain relations, crack...
Metallic glasses (MGs) with superior catalytic performance have recently been recognized as attractive candidates for wastewater treatment. However, further improving their will require knowledge of how to precisely regulate electronic structures via compositional control. Here, two Fe-based MGs (Fe78Si9B13 and Fe80Si9B11) were prepared compare slightly altering boron content affected structure performance. Density functional theory revealed that the Fe78Si9B13 MG 2 atom % higher exhibits an...
A novel multi-principal element alloy was developed by integrating oxygen incorporation with dual-phase supra-nanostructuring to boost catalytic efficacy due its abundant, unique next-nearest oxygen-coordinated active sites in interfaces.