A5100388334- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Industrial Gas Emission Control
- Boron and Carbon Nanomaterials Research
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Catalytic Cross-Coupling Reactions
- Catalytic C–H Functionalization Methods
- Gas Sensing Nanomaterials and Sensors
- Catalysis and Hydrodesulfurization Studies
- Nanomaterials for catalytic reactions
- Sulfur-Based Synthesis Techniques
- Hydrogen Storage and Materials
- Aerosol Filtration and Electrostatic Precipitation
- Urban and Freight Transport Logistics
- Zeolite Catalysis and Synthesis
- Nonlinear Optical Materials Studies
- Phase-change materials and chalcogenides
- Traffic and Road Safety
- Advanced oxidation water treatment
- Evacuation and Crowd Dynamics
- CO2 Reduction Techniques and Catalysts
- Machine Learning in Materials Science
- Metal Extraction and Bioleaching
Wuhan University of Technology
2022-2024
Shanghai Jiao Tong University
2004-2024
Hunan University
2024
Fudan University
2023
Beijing University of Chemical Technology
2022
Dalian University of Technology
2022
Suzhou Thermal Engineering Research Institute
2021
Corning (United States)
2020
Institute of Process Engineering
2011-2019
University of Toyama
2009
Recent experiments claimed successful synthesis of cubic boron-carbonitride compounds BC2N with an extreme hardness second only to diamond. In the present Letter, we examine ideal strength using first-principles calculations. Our results reveal that, despite large elastic parameters, compositional anisotropy and strain dependent bonding character impose limitation on their strength. Consequently, optimal structure is predicted be lower than that BN, hardest material known. The measured...
The key challenge for controlling low concentration volatile organic compounds (VOCs) is to develop technology capable of operating under mild conditions in a cost-effective manner. Meanwhile, ozone (O3) another dangerous air pollutant and byproducts many emerging quality control technologies, such as plasma electrostatic precipitators. To address these multiple challenges, we report here design strategy achieving the following trifunctions (i.e., efficiently VOCs adsorption enrichment,...
Cubic boron nitride ($c$-BN) is the second (only to diamond) hardest material with superior thermal stability. Despite its wide range of applications as a superhard material, structural deformation modes $c$-BN at atomistic level are still not well understood. In this paper, we report first-principles calculations on deformation, strength, and lattice instabilities under large tensile shear strains. Calculations also performed for diamond extend previous results systematic comparison $c$-BN....
We report on a first-principles study of the structural deformation modes in diamond, cubic boron nitride ($c\mathrm{\text{\ensuremath{-}}}\mathrm{BN}$), and ${\mathrm{BC}}_{2}\mathrm{N}$. show that (i) diamond C-C bonds remain strong up to breaking point, leading large nearly identical shear tensile strength, (ii) $c\mathrm{\text{\ensuremath{-}}}\mathrm{BN}$ exhibits failure mode different from significant softening B-N at strains long before bond breaking, (iii)...
Several solid ${\mathrm{C}}_{3}{\mathrm{N}}_{4}$ phases have been predicted to strength approaching or even exceeding that of diamond based on calculated elastic moduli. In this paper, we show by first-principles calculation the previously hardest phase is lower compared not only but also cubic boron nitride a surprisingly large amount. We examine electronic origin phenomenon and excessive electrons N atoms play key role. The results illustrate close examination atomistic deformation modes...
Well-designed wayfinding signs play an important role in improving the service level of metro stations, ensuring safety passengers evacuation, and promoting sustainable development public transport. This study explored effects ambient illumination, color combination, sign height, observation angle on signs’ legibility stations. In experiment, simulated metro-wayfinding were made to test legibility. As designed, was measured based following independent variables: two levels illumination (70...
ABSTRACT Background Formaldehyde (HCHO) and ozone (O 3 ) are seriously hazardous materials to human health, especially in the indoor environment, need be inhibited. Manganese dioxide (MnO 2 catalysts have been extensively studied field of environmental pollution owing their various morphologies crystal structures. In this study, one‐dimensional rod‐like MnO were prepared by a hydrothermal method. The form other factors affecting activity explored through an test characterization methods....
Abstract We conducted a comprehensive study to investigate the performance of various machine-learning models in predicting chemical durability oxide glasses under different conditions with glass composition as input features, by taking advantage large dataset (~1400 datapoints) we have collected. Two typical tasks, weight loss regression, and surface appearance change rating classification, were study. successfully made Neural Networks delivered an excellent loss, while Random Forest...
Abstract A Phase Change Access Memory (PRAM) cell with stacked phase‐change layers and heater is prepared. Multi‐bit storage in the reset process of PRAM realized by this structure including uniform thickness different thickness. The thermal simulation results show three temperature zones, they will transform from polycrystalline to amorphous state layer layer. There are four levels resistance appearing R – V characteristics, 2‐bit realized. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Palladium-catalyzed cyanation of aryl halides and pseudo with potassium hexacyanoferrate is described employing the hemilabile, bulky, electron-rich MOP-type ligands. When mixture <i>t</i>-BuOH H<sub>2</sub>O was used as solvent K<sub>2</sub>CO<sub>3</sub> base, ligands showed high efficiency for palladium-catalyzed cyanation. The effect ligand structure studied in detail, 2-di-<i>tert</i>-butylphosphino-2′-isopropoxy-1,1′-binaphthyl more effective catalyst system allows unactivated...