搜索结果: 1-15 共查到“Nanoparticles”相关记录59条 . 查询时间(0.109 秒)
Uniform Pd0.33Ir0.67 nanoparticles supported on nitrogen-doped carbon with remarkable activity toward the alkaline hydrogen oxidation reaction
Alkalinity Anodes Binary alloys Carbon Cyclic voltammetry Density functional theory
2023/6/21
Highly efficient non-Pt electrocatalysts for the alkaline hydrogen oxidation reaction (HOR) are required to enable complete replacement of Pt in hydroxide exchange membrane fuel cells (HEMFCs). Herein...
Researchers at MIT have developed a technique for precisely controlling the arrangement and placement of nanoparticles on a material, like the silicon used for computer chips, in a way that does not d...
Engineers develop nanoparticles that cross the blood-brain barrier（图）
血脑屏障 纳米颗粒 胶质母细胞瘤 化疗药物
2022/6/1
There are currently few good treatment options for glioblastoma, an aggressive type of brain cancer with a high fatality rate. One reason that the disease is so difficult to treat is that most chemoth...
Astonishing diversity: Semiconductor nanoparticles form numerous structures
lead sulfide nanoparticles hexagonal structure BCC
2021/8/5
The structure adopted by lead sulphide nanoparticles changes surprisingly often as they assemble to form ordered superlattices. This is revealed by an experimental study that has been conducted at DES...
Facile synthesis of PdO-doped Co3O4 nanoparticles as an efficient bifunctional oxygen electrocatalyst.（图）
PdO Co3O4 纳米颗粒 电催化剂
2019/8/10
The interfaces of multicomponent hybrid nanoparticles (MHNPs) have great effects on their electrocatalytic activities. Herein, a highly active multifunctional catalyst heterostructure PdO-doped Co3O4 ...
Virginia Tech researchers discover potentially harmful airborne nanoparticles produced through burning of coal（图）
Virginia Tech researchers potentially harmful airborne nanoparticles burning of coal
2017/8/8
Environmental scientists led by the Virginia Tech College of Science have discovered that the burning of coal produces incredibly small particles of a highly unusual form of titanium oxide.When inhale...
Real-time scans of self-healing nanoparticles show their energy storage potential
Real-time scans self-healing nanoparticles their energy storage potential
2017/1/16
In a lab 18 feet below the Engineering Quad of Stanford University, researchers in the Dionne lab camped out with one of the most advanced microscopes in the world to capture an unimaginably...
FUNCTIONAL NANOCOMPOSITES FROM SELF-ASSEMBLY OF BLOCK COPOLYMERS WITH NANOPARTICLES
nanoparticle block copolymer morphology metamaterial
2014/11/21
This dissertation studied the proper distribution and location control of nanoparticles (NPs) within block copolymer (BCP) templates. A facile ligand exchange reaction was introduced for the hydrophil...
FUNCTIONAL NANOPARTICLES AT INTERFACES: EMULSION STABILIZATION AND TRIGGERED INVERSION
Nanoparticle Emulsion Ligand Polymer Functionalization Capsule
2014/11/21
Encapsulation of materials can be performed through the stabilization of fluid-fluid interfaces and the formation of emulsion droplets, which is commonly achieved with surfactants, including small mol...
Ferric hydrogen sulfate supported on silica-coated nickel ferrite nanoparticles as new and green magnetically separable catalyst for 1,8-dioxodecahydroacridine synthesis
Magnetically separable catalyst Ferric hydrogen sulfate Nickel ferrite nanoparticles 1,8-Dioxodecahydroacridine
2014/2/26
A new magnetically separable catalyst consisting of ferric hydrogen sulfate supported on silica-coated nickel ferrite nanoparticles was prepared. The synthesized catalyst was characterized using vibra...
Improving the Dynamic Properties of MRE under Cyclic Loading by Incorporating Silicon Carbide Nanoparticles
Magnetorheological elastomers cycle performance silicon carbide nanoparticles energy storage modulus
2014/2/5
A novel method was developed to enhance the cyclic performance of magnetorheological elastomers (MREs) by incorporating silicon carbide (SiC) nanoparticles. Different amounts of SiC nanoparticles were...
Fe3O4 Nanoparticles as an Efficient and Magnetically Recoverable Catalyst for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones under Solvent-Free Conditions（图）
dihydropyrimidinones dihydropyrimidinthiones ferroferric oxide nanoparticle one-pot condensation solvent-free
2013/10/12
The catalytic activity of Fe3O4 nanoparticles (NPs) in a one-pot three component condensation reaction consisting of an aromatic aldehyde, urea or thiourea, and a β-dicarbonyl under solvent-free condi...
CoFe2O4 nanoparticles：An efficient heterogeneous magnetically separable catalyst for “click” synthesis of arylidene barbituric acid derivatives at room temperature（图）
Magnetically separable catalyst Arylidene barbituric acid derivative Aqueous ethanol Superparamagnetic CoFe2O4 nanoparticle Heterogeneous catalyst
2013/9/25
A coprecipitation method was used to synthesize superparamagnetic CoFe2O4 nanoparticles without using any capping agents/surfactants. The prepared nanoparticles were characterized using Fourier transf...
Ultrahigh-contrast and large-bandwidth thermal rectification in near-field electromagnetic thermal transfer between nanoparticles
Ultrahigh-contrast large-bandwidth thermal electromagnetic thermal transfer between nanoparticles
2013/8/7
We exploit the unique properties of optical waves in nanophotonic structures to enhance the capabilities for active control of electromagnetic thermal transfer at nanoscale. We show that the near-@...
Synthesis of polyhydroquinoline derivatives via a four-component Hantzsch condensation catalyzed by tin dioxide nanoparticles（图）
Nano tin dioxide catalyst Hantzsch condensation Polyhydroquinoline 1,4-Dihydropyridine
2013/4/23
Tin dioxide (SnO2) nanoparticles efficiently catalyzed unsymmetrical four-component Hantzsch condensations of various aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate to form polyhydroqui...