A5100329074- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Graphene research and applications
- Catalysis and Oxidation Reactions
- Micro and Nano Robotics
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- 2D Materials and Applications
- Modular Robots and Swarm Intelligence
- Advanced Photocatalysis Techniques
- Crystallization and Solubility Studies
- Supercapacitor Materials and Fabrication
- ZnO doping and properties
- Advanced Materials and Mechanics
- Advancements in Battery Materials
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Graphene and Nanomaterials Applications
- X-ray Diffraction in Crystallography
- Conducting polymers and applications
- Semiconductor materials and devices
- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials Characterization Techniques
- Aerogels and thermal insulation
- Polyoxometalates: Synthesis and Applications
Shanghai Jiao Tong University
2022-2025
First Affiliated Hospital of Zhengzhou University
2024
Beijing Technology and Business University
2024
Beijing Advanced Sciences and Innovation Center
2024
University of Manchester
2021-2023
Northwestern Polytechnical University
2022-2023
Max Planck Institute for Intelligent Systems
2017-2022
Jiangnan University
2021-2022
Henry Royce Institute
2021
University of Birmingham
2020
Abstract Pt/CeO 2 catalysts with various Pt loadings were prepared by a conventional incipient wetness impregnation method that employed CeO cubes (c‐CeO ), rods (r‐CeO and octahedra (o‐CeO ) as the support Pt(NH 3 4 (NO metal precursor. Their structures catalytic activities in CO oxidation excess O preferential of H ‐rich gas (CO‐PROX) studied, strong morphology effects observed. The impregnated precursor interacts more strongly than octahedra, reduction/decomposition on is easier cubes....
Abstract Twisted bilayer graphene (tBLG) has recently attracted growing interest due to its unique twist-angle-dependent electronic properties. The preparation of high-quality large-area with rich rotation angles would be important for the investigation angle-dependent physics and applications, which, however, is still challenging. Here, we demonstrate a chemical vapor deposition (CVD) approach tBLG using hetero-site nucleation strategy, which enables second layer at different site from that...
Mobile microrobots, which can navigate, sense, and interact with their environment, could potentially revolutionize biomedicine environmental remediation. Many self-organizing microrobotic collectives have been developed to overcome inherent limits in actuation, sensing, manipulation of individual microrobots; however, reconfigurable robust transitions between behaviors are rare. Such systems that perform multiple functions advantageous operate complex environments. Here, we present a...
Abstract The availability of graphene and other two-dimensional (2D) materials on a wide range substrates forms the basis for large-area applications, such as integration with silicon-based technologies, which requires silicon outperforming carrier mobilities. However, 2D were only produced limited archetypal by chemical vapor deposition approaches. Reliable after-growth transfer techniques, that do not produce cracks, contamination, wrinkles, are critical layering onto arbitrary substrates....
This paper describes the synthesis and characterization of single-layer graphene oxide−periodic mesoporous silica sandwich nanocomposites. Through a comprehensive exploration conditions, it has proven possible to create first example nanocomposite in which hexagonal symmetry PMS film grows on both sides oxide sheets with channels vertically aligned respect surface. The formation this novel architecture is found be very sensitive pH, ratio surfactant template oxide, amount precursor,...
Periodic mesoporous organosilica (PMO) with polyhedral oligomeric silsesquioxane (POSS) air pockets integrated into the pore walls has been prepared by a template-directed, evaporation-induced self-assembly spin-coating procedure to create hybrid POSS-PMO thin film. A 10-fold increase in porosity of film compared reference POSS is achieved incorporating ∼1.5 nm pores. The increased results decrease dielectric constant, k, which goes from 2.03 1.73
CuOx based junctions e.g. CuOx–TiO2 have been demonstrated to be very effective in photocatalytic H2 production, but the active component at junction is less understood. We herein report that an as-prepared photocatalyst undergoes situ restructuring process during production under solar light irradiation form Cu2O–TiO2 interfacial structure on surface. These results unambiguously demonstrate Cu2O copper species photocatalysts.
We combine materials engineering and digital processing to design print cellulose-based continuous stiffness gradients.
Dynamic self-assembled material systems constantly consume energy to maintain their spatiotemporal structures and functions. Programmable self-assembly translates information from individual parts the collective whole. Combining dynamic programmable in a single platform opens up possibilities investigate both types of simultaneously explore synergy. This task is challenging because difficulty finding suitable interactions that are dissipative programmable. We present self-assembling system...
The epitaxial growth of single-crystal thin films relies on the availability a substrate and strong interaction between epilayer substrate. Previous studies have reported roles (e.g., symmetry lattice constant) in determining orientations chemical vapor deposition (CVD)-grown graphene, Cu(111) is considered as most promising for graphene single crystals. However, gas-phase reactants graphene-substrate orientation are still unclear. Here, we find that trace amounts oxygen capable enhancing...
The wettability of graphene remains controversial owing to its high sensitivity the surroundings, which is reflected by wide range reported water contact angle (WCA). Specifically, surface contamination and underlying substrate would strongly alter intrinsic graphene. Here, investigated measuring WCA on suspended, superclean membrane using environmental scanning electron microscope. An extremely low with an average value ≈30° observed, confirming hydrophilic nature pristine This...
The integration of large-scale two-dimensional (2D) materials onto semiconductor wafers is highly desirable for advanced electronic devices, but challenges such as transfer-related crack, contamination, wrinkle and doping remain. Here, we developed a generic method by gradient surface energy modulation, leading to reliable adhesion release graphene target wafers. as-obtained wafer-scale exhibited damage-free, clean, ultra-flat with negligible doping, resulting in uniform sheet resistance...
Abstract Bilayer graphene (BLG) is intriguing for its unique properties and potential applications in electronics, photonics, mechanics. However, the chemical vapor deposition synthesis of large-area high-quality bilayer on Cu suffering from a low growth rate limited coverage. Herein, we demonstrate fast meter-sized film commercial polycrystalline foils by introducing trace CO 2 during high-temperature growth. Continuous with high ratio AB-stacking structure can be obtained within 20 min,...
Abstract This work demonstrates a feasible route to synthesize the layered polypyrrole/graphite oxide (PPy/GO) composite by in situ emulsion polymerization presence of cationic surfactant cetyltrimethylammonium bromide (CTAB) as emulsifier. AFM and XRD results reveal that GO can be delaminated into nanosheets well dispersed aqueous solution CTAB. The PPy nanowires are formed due lamellar mesostructured (CTA) 2 S O 8 template. PPy/GO indicate insert successfully interlayers, nanofiber‐like...
Gas-phase methyl radicals have been long proposed as the key intermediate in catalytic oxidative coupling of methane, but direct experimental evidence still lacks. Here, employing synchrotron VUV photoionization mass spectroscopy, we directly observed formation gas-phase during methane catalyzed by Li/MgO catalysts. The concentration correlates well with yield ethylene and ethane products. These results lead to an enhanced fundamental understanding that will facilitate exploration new...
A local measure based on the Shannon entropy establishes connections among information, structures, and interactions.
Cold-pressed powder compacts of CrO2 show large negative magnetoresistance (MR) due to intergranular tunneling. Powder made from needle-shaped nanoparticles exhibit MR about 28% at 5 K. Temperature dependence the resistivity indicates that Coulomb blockade tunneling is responsible for conductance low temperature. In this letter we report direct observation and characterization microstructure tunnel barriers, using transmission electron microscopy, x-ray diffraction (XRD), photoelectron...