Fabrication of colloidal crystal heterostructures by a room temperature floating self-assembly method

2011 ◽  
Vol 128 (1-2) ◽  
pp. 6-9 ◽  
Author(s):  
Ai Jun Wang ◽  
Sheng-Li Chen ◽  
Peng Dong
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Colloidal Crystal ◽  
Assembly Method

Template-Free Synthesis and Properties of Polyaniline Nanostructures Doped with Different Oxidants

2011 ◽  
Vol 688 ◽  
pp. 334-338 ◽  
Author(s):  
He Yang ◽  
Yun Ze Long ◽  
Hang Jun Ding
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Three Dimensional ◽  
Ammonium Persulfate ◽  
Molar Ratio ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Assembly Method ◽  
Temperature Dependence Of Conductivity ◽  
Template Free

In this work, we report on conducting polyaniline (PANI) nanostructures synthesized by a simplified template-free self-assembly method, which are doped with different oxidants such as ammonium persulfate (APS), FeCl3, Fe(NO3)3, and Fe2(SO4)3. It is found that the morphologies of the as-prepared PANI nanowires are dependent on the oxidant and the molar ratio of aniline to oxidant. The PANI nanostructures are semiconducting with room-temperature conductivity ranging from 10-2to 100S/cm, and the temperature dependence of conductivity follows three-dimensional Mott variable range hopping (3D Mott-VRH) model. In addition, the PANI pellets exhibit hydrophilic behavior.

Fast fabrication of a self-cleaning coating constructed with scallion-like ZnO using a perfect colloidal monolayer enabled by a predictive self-assembly method

2017 ◽  
Vol 5 (12) ◽  
pp. 5943-5951 ◽  
Author(s):  
Yizhi Wu ◽  
Chen Chen ◽  
Yunxi Liu ◽  
Xiaoliang Xu ◽  
Zhou Yang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Assembly Method ◽  
Colloidal Monolayer ◽  
Mc Simulation ◽  
Self Cleaning ◽  
First Time

Fast fabrication of a scallion-like ZnO self-cleaning coating using a colloidal crystal enabled by MC simulation is developed for the first time.

Preparation of Doughnut-like Nanocomposite Colloidal Crystal Particles with Enhanced Light Diffraction Using Drying Self-assembly Method

2015 ◽  
Vol 11 (2) ◽  
pp. 161-165 ◽  
Author(s):  
Bing Yu ◽  
Hailin Cong ◽  
Hua Yuan ◽  
Xuesong Liu ◽  
Qiaohong Peng ◽  
...  
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Light Diffraction ◽  
Assembly Method

Multivariant ligands stabilize anionic solvent-oriented α-CsPbX3 nanocrystals at room temperature

Nanoscale ◽  
2021 ◽  
Author(s):  
Yanqing Luo ◽  
Tao Tan ◽  
Sen Wang ◽  
Ran Pang ◽  
Lihong Jiang ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Self Assembly ◽  
Room Temperature ◽  
Cubic Phase ◽  
Ambient Conditions ◽  
High Quantum Efficiency ◽  
Long Term Stability ◽  
High Quantum ◽  
Assembly Method

A self-assembly method is proposed for cubic phase CsPbX3 nanocrystals under ambient conditions. Long-term stability and high quantum efficiency are maintained via ligand evolution from paired X type ligands to hybrid L–X type ligands.

Syntesis of Mesoporous Microparticles for Biomedical Applications

2008 ◽  
Vol 377 ◽  
pp. 181-194 ◽  
Author(s):  
Daniel Arcos ◽  
Adolfo López-Noriega ◽  
Eduardo Ruiz-Hernández ◽  
Luisa Ruiz ◽  
José María González-Calbet ◽  
...  
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Textural Properties ◽  
Structure Directing Agent ◽  
Assembly Method ◽  
Temperature Method ◽  
Evaporation Induced Self Assembly ◽  
Silica Microparticles ◽  
Macroscopic Shape ◽  
Spherical Microparticles

Towards the design of bioceramics with control over both macroscopic shape and mesoporosity, silica based mesoporous materials have been synthesized using evaporation-induced self-assembly method by two different routes: room temperature (RT) and aerosol-assisted synthesis (A-A). Two series varying surfactant/silica precursor ratio have been synthesized in order to check the mesopore ordering as a function of the structure directing agent amount in both preparation procedures. The A-A method leads to spherical microparticles, which exhibit mesopore ordering for a wider surfactant/silica range compared with room temperature method, which yield irregular shaped particles. Textural properties values show that for the same surfactant amount, aerosol-assisted method develops higher porosity values in the obtained silica microparticles.

Green synthesis of mixed metallic nanoparticles using room temperature self-assembly

2017 ◽  
Vol 13 (2) ◽  
pp. 4671-4677 ◽  
Author(s):  
A. M. Abdelghany ◽  
A.H. Oraby ◽  
Awatif A Hindi ◽  
Doaa M El-Nagar ◽  
Fathia S Alhakami
Keyword(s):  
Self Assembly ◽  
Metallic Nanoparticles ◽  
Room Temperature ◽  
Bimetallic Nanoparticles ◽  
Reduction Process ◽  
Nano Particles ◽  
Nano Structure ◽  
Small Shift ◽  
Molar Ratios ◽  
Vis Spectroscopy

Bimetallic nanoparticles of silver (Ag) and gold (Au) were synthesized at room temperature using Curcumin. Reduction process of silver and gold ions with different molar ratios leads to production of different nanostructures including alloys and core-shells. Produced nanoparticles were characterized simultaneously with FTIR, UV/vis. spectroscopy, transmission electron microscopy (TEM), and Energy-dispersive X-ray (EDAX). UV/vis. optical absorption spectra of as synthesized nanoparticles reveals presence of surface palsmon resonance (SPR) of both silver at (425 nm) and gold at (540 nm) with small shift and broadness of gold band after mixing with resucing and capping agent in natural extract which suggest presence of bimetallic nano structure (Au/Ag). FTIR and EDAX data approve the presence of bimetallic nano structure combined with curcumin extract. TEM micrographs shows that silver and gold can be synthesized separately in the form of nano particles using curcumin extract. Synthesis of gold nano particles in presence of silver effectively enhance and control formation of bi-metallic structure.

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