A5101802539- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Quantum Dots Synthesis And Properties
- Electrocatalysts for Energy Conversion
- Copper-based nanomaterials and applications
- Electrochemical sensors and biosensors
- Electronic and Structural Properties of Oxides
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Catalysis and Oxidation Reactions
- Advanced biosensing and bioanalysis techniques
- Nanomaterials for catalytic reactions
- Probabilistic and Robust Engineering Design
- Coal Properties and Utilization
- Real-time simulation and control systems
- Electron and X-Ray Spectroscopy Techniques
- Advanced Fluorescence Microscopy Techniques
- Geomechanics and Mining Engineering
- Geoscience and Mining Technology
- Anodic Oxide Films and Nanostructures
- Image Processing Techniques and Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Conducting polymers and applications
- Catalysis and Hydrodesulfurization Studies
- Advanced materials and composites
Xidian University
2022-2025
Zhejiang University
2018-2023
Qingdao University of Science and Technology
2021-2022
Chongqing University
2013
Harbin Institute of Technology
2013
Rotation during reaction Determining changes in heterogeneous catalysts under conditions can provide insight into mechanisms. Under conditions, not only metal nanoparticles change shape but their interaction with the oxide support could also be affected. Yuan et al. used aberration-corrected environmental transmission electron microscopy to study gold on titanium surfaces at low beam doses. During carbon monoxide (CO) oxidation total pressures of a few millibars and 500°C, they observed that...
Imaging reactive surface water Recent developments in transmission electron microscopy (TEM) have enabled imaging of single atoms, but adsorbed gas molecules proven more challenging because a lack sufficient image contrast. Yuan et al. and carbon monoxide (CO) on reconstructed nanocrystalline anatase titanium dioxide (TiO 2 ) that has protruding TiO 3 ridges every four unit cells, which provide regions distinct Water adsorption this during environmental TEM experiments led to the formation...
Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way to choose a suitable support. However, whether the metal-support interactions promote or prevent has not been fully identified. Now, completely different behaviors Au nanoparticles on distinct anatase TiO2 surfaces have determined by situ TEM. The full processes were visualized (101) surface, which coupled Ostwald ripening and particle migration coalescence. In contrast, no (001) surface...
ConspectusHeterogeneous catalysts are widely used in a variety of industrial fields, including environmental protection, energy conversion, and chemical production. Their performance during reactions is usually determined by small fraction sites at the catalyst surfaces/interfaces, namely, active sites. Actually, since concept "active sites" was proposed Hugh Taylor 1920s, determining site atomic level understanding molecular processes that happened have become top priority catalysis...
The anatase TiO2 (001) surface has attracted extensive attention in science and for practical applications because of its excellent performance. However, the highly reactive usually reconstructs to a (1 × 4)-(001) surface, which may potentially alter properties. As result, there are still controversial issues concerning intrinsic performance this surface. Recently, significant advances have been made study (001), elucidated physical chemical In review, we summarize our present understanding...
Abstract The multiple exciton generation (MEG) effect, which produces photo‐generated charge carriers from a single high‐energy photon absorption by semiconductor with narrow bandgap, has the potential to revolutionize photovoltaic, photoelectric detection, and other technologies. Here, this work finds that surface carbon‐modified wide‐bandgap photoanode hierarchical quantum structure can drive photoelectrochemical reaction efficiency exceeding 145% first time. More studies reveal presence...
Abstract Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way to choose a suitable support. However, whether the metal–support interactions promote or prevent has not been fully identified. Now, completely different behaviors Au nanoparticles on distinct anatase TiO 2 surfaces have determined by situ TEM. The full processes were visualized (101) surface, which coupled Ostwald ripening and particle migration coalescence. In contrast, no (001)...
The anatase TiO2 nanocrystals with dominant (001) facets attracted tremendous attention in the past decade. However, reported intrinsic property of surface is still a cause controversy. A crucial reason that usually undergoes (1 × 4) reconstruction, which may result remarkable difference property. Herein, we performed an situ environmental transmission electron microscopy (ETEM) study regarding formation and stability 4)-(001) nanocrystals. systematic ETEM studies confirmed could be...
Anatase TiO2 nanotubes array (ATONA) has attracted tremendous attention owing to its promising applications in solar cells, water splitting and organic pollutants photocatalytic degradation. However, the activity of ATONAs was greatly suppressed by grain boundaries existed tube walls, which acted as carrier scattering recombination centers. Herein, we report a novel strategy prepare single crystalline anatase (SC-ATONAs) with significant enhancement UV photo response performance compared...
<title>Abstract</title> Early diagnosis of Alzheimer's disease (AD) is crucial for treatment and improving patient prognosis. However, due to the low content, complex composition, individual differences target proteins in real clinical specimens AD patients, ultra sensitive detection early biomarkers still faces challenges. This study presents development an ultrasensitive TiO₂/Au-C₃N₄ heterojunction photoelectrochemical biosensor, fabricated using electrophoretic deposition (EPD),...
The microfluidic chip with well-defined structure is an important platform for cell research. existing techniques fabrication especially in biology and tissue engineering have many defects, example, poor processing precision, high cost, as well sophisticated manufacturing procedure. Thus, of simple practicable highly efficient control ability low-cost turned to be the main target bioengineering application. Poly(ethylene glycol) (PEG) a hydrophilic polymer. Substituting terminal hydroxyl...
To study the drill hole gas pre-drainage technology in low-permeability outburst coal seam, this paper selects 1031 working face of first seam Songhe Coal Mine as research and test area, adopts Ansys numerical simulation software for simulated calculation different spacing drainage time, effects are obtained, results show that: when is 2.0 m, result best, residual content drops to less than 5.92 m3/t, pressure 0.58 MPa, rate increased 61.48%, risk also reduced. This optimization method has a...
N-silicon is a potential candidate for high-efficiency photoanode fabrication, but it limits by the overlarded water oxidation reaction overpotential and weak stability. This work presents cross-scale CoOx (atom size) NiFe LDH (submicron-size) composite bi-layer modified n-Si which exhibit excellent PEC performance. Experimental analysis theoretical calculation results show that (2 nm)-NiFe (~500 nm) can’t only accelerate bulk charge transfer also regulate interfacial transfer, thus improve...