A5100651108- Molecular Junctions and Nanostructures
- Surface Chemistry and Catalysis
- Force Microscopy Techniques and Applications
- Advanced Chemical Physics Studies
- Graphene research and applications
- Mechanical and Optical Resonators
- Pickering emulsions and particle stabilization
- biodegradable polymer synthesis and properties
- Quantum and electron transport phenomena
- Characterization and Applications of Magnetic Nanoparticles
- Electrospun Nanofibers in Biomedical Applications
- Surface and Thin Film Phenomena
- Seismology and Earthquake Studies
- Advanced Electron Microscopy Techniques and Applications
- Electrochemical Analysis and Applications
- Boron Compounds in Chemistry
- Aerogels and thermal insulation
- Nanocomposite Films for Food Packaging
- Seismic Waves and Analysis
- Gyrotron and Vacuum Electronics Research
- Advancements in Transdermal Drug Delivery
- Photochromic and Fluorescence Chemistry
- earthquake and tectonic studies
- Thermal properties of materials
- Injection Molding Process and Properties
Peking University
2023-2025
University of Hong Kong
2024
State Key Laboratory of Rare Earth Materials Chemistry and Application
2024
Beijing National Laboratory for Molecular Sciences
2024
Shanghai University
2023
Southwest Jiaotong University
2019-2023
Shanghai Research Institute of Materials
2023
Dalian University
2023
China Earthquake Administration
2014-2022
Tongji University
2022
Abstract The CO 2 electroreduction reaction using sustainable electricity emerges as a viable strategy to produce high‐value‐added and profitable chemicals. achievement of superior activity at lower overpotential higher selectivity in wide potential window is vitally important for large‐scale industrial applications. Herein, carbon‐composite amorphous porous BiSbO x nanotube with abundant unsaturated sites reported boost the conversion formate, exhibiting formate >90% an extremely broad...
Mechanochemistry refers to chemical reactions induced by mechanical forces. Due different reaction mechanisms, products obtained through mechanochemistry can be distinct from those produced thermochemistry and photochemistry. Scanning probe microscopy is a powerful tool for studying single-molecule mechanochemical processes. Mechanical force vector that has both magnitude direction. Previous studies have focused on triggering forces measuring their magnitude. In this work, we use the...
Abstract Lanthanide double‐decker phthalocyanine (LnPc 2 ) complexes are highly coveted for their prospective uses in ultrahigh‐density data storage and quantum computing. Notably, the spin systems comprising these superconducting substrates exhibit unique magnetic interactions. Through scanning tunneling microscopy (STM) spectroscopy (STS) experiments, interaction between DyPc molecules Pb(111) substrate is investigated. Three distinct adsorption patterns of on experimentally observed....
Rationally designed halogenated hydrocarbons are widely used building blocks to fabricate covalent-bonded carbon nanostructures on surfaces through a reaction pathway involving generation and dissociation of organometallic intermediates irreversible covalent bond formation. Here, we provide comprehensive picture the on-surface-assisted homocoupling 1,3-bis(2-bromoethynyl)benzene Au(111), aiming for synthesis graphdiyne nanostructures. Submolecular resolution scanning tunneling microscopy...
1,3,5-Trimethylenebenzene (1,3,5-TMB), a 3-fold-symmetric triradical with high-spin ground state, is an attractive platform for investigating the unique spin properties of π-conjugated triangular triradicals. Here, we report on-surface synthesis N-heterocyclic carbene (NHC)-derived 1,3,5-TMB (N-TMB) via surface-assisted C–C and C–N coupling reactions on Au(111). The chemical electronic structures N-TMB Au(111) surface are revealed atomic precision using scanning tunneling microscopy...
Magnetic carbon nanotube aerogels with a repeated aerogel–sol–hydrogel–aerogel transition have been acquired by the special drying of gel-precursors made via assembling individual nanotubes dendritic poly(amido amine) molecules in presence Fe3O4 nanoparticles, which has inspired us to synthesize renewable 3D porosints composed organic, inorganic and their hybrid building blocks.
The structural transformation from symmetric cumulene to broken-symmetry polyyne within a one-dimensional (1-D) atomic carbon chain is signature of Peierls distortion. Direct observation such with single-bond resolution is, however, still challenging. Herein, we design molecule moiety (Br2C═C═C═CBr2) and employ STM tip manipulation achieve the molecular skeleton rearrangement diyne (Br–C≡C–C≡C–Br). Furthermore, by an on-surface reaction strategy, thermally induced entire debromination...
The field of molecular assembly has seen remarkable advancements across various domains, such as materials science, nanotechnology, and biomedicine. Small gas molecules serve pivotal modulators, capable altering the architecture assemblies via tuning a spectrum intermolecular forces including hydrogen bonding, dipole–dipole interactions, metal coordination. Surface techniques, notably scanning tunneling microscopy atomic force microscopy, have proven instrumental in dissecting structural...
A single-molecule-level understanding of the activity solvating water molecules in hydrogen-bonded assemblies would provide insights into properties first hydration shells. Herein, we investigate solvation one DNA bases, cytosine, whose glassy-state network formed on Au(111) contains diverse types dimer configurations with hierarchical strengths. Upon exposure, a global structural transformation from interwoven chain segments to extended chains was identified by scanning tunneling microscopy...
Nowadays, a variety of materials are employed to make numerous medical devices, including metals, polymers, ceramics, and others. Blood-contact devices one the major classes these they have been widely applied in clinical settings. usually need good mechanical properties maintain performance. Metal desirable candidate fabricate blood-contact due their excellent machinability, although blood compatibility existing is better than other such as artificial joints crystals. However, coagulation...
Droplet spreading behaviors on lubricant-patterned substrates are investigated by using molecular dynamics simulations to explore application potentials in magnetic storage drive systems. Microscopic processes studied both potential fields of and single molecule movements lubricant droplets. The indicate that the wall molecules patterned attract mobile ones Due attraction force, experience difficulties diffusing freely along substrates. droplets demonstrate during diffusion process,...
Carbon nanotubes (CNTs) have been demonstrated as a functional probe for scanning microscopy because of their good mechanical properties, small diameter, and high aspect ratio. However, application performance in Kelvin force (KPFM) are largely unexplored. Here, the electrical properties CNTs used KPFM terms surface potential measurement mapping investigated. The local contact difference measured by CNT on Ag(111) shows dependence tip–sample distance, indicative existence permanent dipole...
Studying the structural and magnetic properties of organic molecules at cryogenic temperature, which is beneficial for reducing molecular vibration stabilizing magnetization, great importance to construct novel spintronics devices better performance scale device size down nanoscale. To explore possibility fabricating molecule-based memory chips ultrahigh density, we constructed two-dimensional close-packed arrays with carboxylic acid studied in a low-temperature scanning tunneling...
A new type of seismic intensity meter based on MEMS accelerometer is introduced. It employs STM32F107 as the data processing core and detects changes acceleration with triaxial LIS344ALH uses ADS1248 for 24 bit sampling. The test vibration table shows that linearity δL = ± 1.4%, sensitivity Kc 0.9671 V/g zero deviation 0.0043 g. has advantages simple structure stable performance it appropriate intensive layout a large scale.
Abstract Chitosan has good biocompatibility, in vivo biodegradability and certain physiological activity, which can be used as a drug carrier to stabilise protect components, causing the promotion of absorption controlling release. Using graphene oxide (GO) cross‐linking agent, functional groups its lamellar structure interact effectively with chitosan molecules, leading enhanced mechanical properties optimize controlled drug‐release behaviour. GO/chitosan composite films were prepared by...