Colloidal and thermal stability of polyaniline-coated multi-core shell polystyrene latexes prepared using sulfonated N-hydroxyethyl aniline

2005 ◽  
Vol 151 (3) ◽  
pp. 246-255 ◽  
Author(s):  
Jin Sup Shin ◽  
Jung Hyun Kim ◽  
In Woo Cheong
Keyword(s):  
Thermal Stability ◽  
Core Shell ◽  
Thermal Stability Of

Thermal Stability of Core–Shell Nanoparticles: A Combined in Situ Study by XPS and TEM

2015 ◽  
Vol 27 (20) ◽  
pp. 6960-6968 ◽  
Author(s):  
Cecile S. Bonifacio ◽  
Sophie Carenco ◽  
Cheng Hao Wu ◽  
Stephen D. House ◽  
Hendrik Bluhm ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
In Situ Study ◽  
Core Shell Nanoparticles ◽  
Thermal Stability Of

scholarly journals Thermal behavior of Pd@SiO2 nanostructures in various gas environments: a combined 3D and in situ TEM approach

Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20178-20188 ◽  
Author(s):  
Walid Baaziz ◽  
Mounib Bahri ◽  
Anne Sophie Gay ◽  
Alexandra Chaumonnot ◽  
Denis Uzio ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Thermal Behavior ◽  
Atmospheric Pressure ◽  
Electron Tomography ◽  
Core Shell ◽  
In Situ Tem ◽  
Environmental Tem ◽  
First Time ◽  
Thermal Stability Of

The thermal stability of core–shell Pd@SiO2 was for the first time monitored by using in situ Environmental TEM at atmospheric pressure coupled with Electron Tomography on the same particles.

Fabrication of Metal@SnO2 Core-Shell Nanocomposites for Gas Sensing Applications

2015 ◽  
pp. 438-451
Author(s):  
Sanjay K. Suar ◽  
Sayantan Sinha ◽  
Amrita Mishra ◽  
Suraj K. Tripathy
Keyword(s):  
Thermal Stability ◽  
Gas Sensing ◽  
Chemical Species ◽  
Core Shell ◽  
Sensor Performance ◽  
Sensing Applications ◽  
Sensing Material ◽  
Response And Recovery ◽  
Interfacial Charge ◽  
Thermal Stability Of

Metal/SnO2 is one of the most popular composite systems because of its application in gas sensors, where the metal in contact with the SnO2 (semiconductor) enhances sensor performance in terms of sensitivity, response, and recovery time. This is because the metal acts as an electron reservoir, improving the depletion layer formation by interfacial charge-transfer process and delaying the electrons-holes recombination process in SnO2. Conventionally, the metal nanoparticles are anchored on the surface of SnO2 to produce hetero-interfaces. Despite effective catalytic activity, this structural drawback exposes metals to other chemical species. Therefore, it is necessary to design new strategies to improve the chemical and thermal stability of metal/SnO2. Recently, nanocomposites with metal core and SnO2 shell became potential candidates due to their chemical and thermal stability and superior material property. In this chapter, fabrication of metal@SnO2 core-shell nanocomposites are discussed as a potential gas sensing material.

Shell-dependent Thermal Stability of CdSe Core/shell Quantum Dot Photoluminescence

2014 ◽  
Vol 35 (9) ◽  
pp. 1051-1057
Author(s):  
陈肖慧 CHEN Xiao-hui ◽  
袁曦 YUAN Xi ◽  
华杰 HUA Jie ◽  
赵家龙 ZHAO Jia-long ◽  
李海波 LI Hai-bo
Keyword(s):  
Thermal Stability ◽  
Quantum Dot ◽  
Core Shell ◽  
Cdse Core ◽  
Thermal Stability Of

scholarly journals Excellent stability of thicker shell CdSe@ZnS/ZnS quantum dots

RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 40866-40872 ◽  
Author(s):  
Yan Fu ◽  
Daekyoung Kim ◽  
Wei Jiang ◽  
Wenping Yin ◽  
Tae Kyu Ahn ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
Relative Humidity ◽  
Core Shell ◽  
Thick Shell ◽  
Thermal Stability Of ◽  
Excellent Stability

Evolution of the long-term (400 h) thermal stability of green CdSe@ZnS alloyed core/shell QDs (A-QDs) and CdSe@ZnS/ZnS (alloyed core/shell)/thick shell QDs (AS-QDs) under 85 °C, 85% relative humidity conditions in air.

scholarly journals Optimized Microstructure and Improved Magnetic Properties of Pr-Dy-Al-Ga Diffused Sintered Nd-Fe-B Magnets

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2583
Author(s):  
Pengpeng Qu ◽  
Feifei Li ◽  
Sajjad Ur Rehman ◽  
Lei He ◽  
Xiaoqiang Yu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Grain Boundary ◽  
Diffusion Process ◽  
Boundary Diffusion ◽  
Grain Boundary Diffusion ◽  
Shell Structures ◽  
Core Shell ◽  
Thermal Stability Of

The grain boundary diffusion process (GBDP) has become an important technique in improving the coercivity and thermal stability of Dy-free sintered Nd-Fe-B magnets. The influence of Dy70Al10Ga20 and (Pr75Dy25)70Al10Ga20 alloys by the GBDP on sintered Nd-Fe-B magnets are investigated in this paper. After diffusing Dy70Al10Ga20 and (Pr75Dy25)70Al10Ga20 alloys, the coercivity (Hcj) of the magnets increased from 13.58 kOe to 20.10 kOe and 18.11 kOe, respectively. Meanwhile, the remanence of the magnets decreased slightly. The thermal stability of the diffused magnets was improved by the GBDP. The microstructure shows continuous Rare-earth-rich (RE-rich) grain boundary phases and (Dy, Pr/Nd)2Fe14B core-shell structures which contribute to improving the coercivity. Moreover, the Dy concentration on the surface of the (Pr75Dy25)70Al10Ga20 diffused magnets decreased with the Pr substitution for the Dy element. The openness of the recoil loops for the (Pr75Dy25)70Al10Ga20 diffused magnets is smaller than that of the original magnets and Dy70Al10Ga20 diffused magnets. The results show that the (Pr75Dy25)70Al10Ga20 alloys can effectively optimize the microstructure and improve the magnetic properties and thermal stability of the sintered Nd-Fe-B magnets.

Computer Modeling of the Formation Process of Core-Shell Nanoparticles Cu@Si

2018 ◽  
Vol 271 ◽  
pp. 47-50 ◽  
Author(s):  
Natalia V. Yumozhapova ◽  
Andrey V. Nomoev ◽  
Yuri Ya. Gafner
Keyword(s):  
Thermal Stability ◽  
Formation Process ◽  
Molecular Dynamic Method ◽  
Dynamic Method ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Droplet Behavior ◽  
Core Shell Structure ◽  
Core Shell Nanoparticles ◽  
Thermal Stability Of

The process of nanoparticle Cu@Si formation by the molecular dynamic method using MEAM-potentials was studied. Modeling the droplet behavior demonstrates that a core-shell structure with a copper core and a silicon shell can be formed if the drop is in the liquid state, until the material is finally redistributed. The parameters of thermal stability of Cu@Si composite nanoparticles of different sizes have been determined. It is concluded that as the temperature increases, the diffusion of copper atoms to the surface begins, which leads to a change in the structure and the formation of particles with a core of the Cu@Si type.

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