搜索结果: 1-15 共查到“知识库 材料科学 Materials”相关记录111条 . 查询时间(0.3 秒)
An octane mediated strategy towards Ti-containing HMS-type mesoporous materials incorporated with methyl for high-efficiency oxidative desulfurization
Oxidative desulfurization Ti-HMS Methyl-functionalized Solvent-free Pickering emulsion catalysis
2023/6/19
Delicate mediation on structural properties and surface wettability of catalysts is the key strategy towards a high catalytic performance but remains challenging. Herein, organic-inorganic hybrid Ti-c...
Facile preparation of bi-functional iron doped mesoporous materials and their application in the cycloaddition of CO2
Mesoporous material Cationic polymers Acid-base catalyst Cycloaddition reaction Cyclic carbonate
2023/6/19
Two kinds of bi-functional transition metal doped mesoporous materials (Fe-HMS and Fe-MCM-41) are prepared using one-step hydrothermal method and then treated with hydrochloric acid ethanol solution. ...
原子级厚度的二维材料是用于光电转换、较有潜力的材料。因为它们具有非常短的光激发载流子扩散路径，进而可以降低光生电子空穴对的复合几率，提高其内部光生载流子的有效分离。原子级厚度的氮化碳作为二维非金属聚合物已被广泛用于光电转换。但是，一般来讲，原子级氮化碳的禁带宽度约为3.06 eV，仅对应太阳光谱中波长小于420 nm的光谱，无法有效利用占太阳光谱约43%的可见光。因此，如何拓展其可见光吸收范围成为...
近年来，第三代半导体材料氧化镓由于其超大的禁带宽度（~4.9 eV）和超高的击穿场强（~8 MV/cm），在深紫外光电器件和高功率器件领域一直受到大家的广泛关注。但是目前实验室制备的氧化镓电子器件性能还远低于其应用需求，主要是由于其较低的载流子迁移率和较强的激子结合能。为了进一步提升氧化镓光电器件的性能，研究者通常通过构建氧化镓/二维材料异质结界面，借助二维材料超高的载流子迁移率和优异的光学吸收来...
Metal-Containing Functional Polmers: (I) Room Temperature magnetic Materials and (II) Anion Exchange Membranes
Pure sciences Applied sciences Anion exchange membranes Hybrid nanostructures Magnetic materials Metal cations Metal-containing polymers Ring-opening metathesis polymerization
2014/11/21
Nanostructured magnetic materials are important for various applications, and hence their development is critical for the advancement of science and technology. Coupling self-assembly to the generatio...
Design of Hybrid Conjugated Polymer Materials: 1) Novel Inorganic/Organic Hybrid Semiconductors and 2) Surface Modification Via Grafting Approaches
Conjugated Polymers hybrid materials organic electronics Polymer electronics polymer grafting surface modification
2014/11/21
The research presented in this dissertation focuses on the design and synthesis of novel hybrid conjugated polymer materials using two different approaches: 1) inorganic/organic hybrid semiconductors ...
Porous Metal Oxide Materials Through Novel Fabrication Procedures
Hierarchical Structures Mesoporous Materials Microelectronics Nanoimprint Lithography Nanoparticles Supercritical Carbon Dioxide
2014/11/21
Porous metal oxide materials, particularly those comprised of silica or titania, find use in many applications such as low-k dielectric materials for microelectronics as well as chemical sensors, micr...
Tuning the Properties of Metal-Ligand Complexes to Modify the Properties of Supramolecular Materials
kinetics ligand polymer supramolecular terpyridine
2014/11/21
Supramolecular chemistry is the study of discreet molecules assembled into more complex structures though non-covalent interactions such as host-guest effects, pi-pi stacking, electrostatic effects, h...
PATTERNING AND MECHANICAL ANALYSIS OF FIBER-BASED MATERIALS
colloid lithography adhesion patterning mechanical properties
2014/11/21
The ability to define and control the topography of a surface has been studied extensively due to its importance in a wide variety of applications. The control of a non-planar topography would be very...
Structure identification methods for atomistic simulations of crystalline materials
Structure identification methods atomistic simulations crystalline materials
2012/2/22
We describe a new computational analysis technique to identify lattices and structural defects in large-scale atomistic computer simulations of crystalline materials. Our approach is based on a user-s...
ToF-SIMS Investigations on Dental Implant Materials and Adsorbed Protein Films
Group for Interfaces Nano Materials Biophysics
2011/6/23
Biofilms play an important role in the health sector, in bioanalytics, in the food industry and in engineering science because the adsorption of organic molecules can alter the physical, biological a...
High-performance hybrid magnetorheological materials: preparation and mechanical properties
Magnetorheological elastomers mechanical properties magnetorheological elastomers magnetorheological gel nonlinear dynamics
2010/11/9
To improve mechanical performance of magnetorheological elastomers (MREs), two novel hybrid magnetorheological elastomers that were embedded with magnetorheological fluids (MRFs) and magnetorheologica...
rid graded element model for transient heat conduction in functionally graded materials
Graded element model Functionally graded materials Hybrid FEM Transient heat conduction
2010/10/13
This paper presents a hybrid graded element model for the transient heat conduction problem in functionally graded materials (FGMs). First, a Laplace transform approach is used to handle the time vari...
Development of novel thermoelectric materials by reduction of lattice thermal conductivity
Development novel thermoelectric materials reduction lattice thermal conductivity
2010/8/31
Thermal conductivity is one of the key parameters in the figure of merit of thermoelectric materials. Over the past decade, most progress in thermoelectric materials has been made by reducing their th...
Electrode materials: a challenge for the exploitation of protonic solid oxide fuel cells
Electrode materials a challenge exploitation of protonic solid oxide fuel cells
2010/8/31
High temperature proton conductor (HTPC) oxides are attracting extensive attention as electrolyte materials alternative to oxygen-ion conductors for use in solid oxide fuel cells (SOFCs) operating at ...