High-Coloration Efficiency Electrochromic Device Based on Novel Porous TiO2@Prussian Blue Core-Shell Nanostructures

2017 ◽  
Vol 224 ◽  
pp. 534-540 ◽  
Author(s):  
Yongbo Chen ◽  
Zhijie Bi ◽  
Xiaomin Li ◽  
Xiaoke Xu ◽  
Shude Zhang ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Electrochromic Device ◽  
Core Shell ◽  
Coloration Efficiency ◽  
Porous Tio2 ◽  
Shell Nanostructures

High-Properties Electrochromic Device Based on TiO2@Graphene/Prussian Blue Core-Shell Nanostructures

2021 ◽  
pp. 134066
Author(s):  
Yingeng Wang ◽  
Zhiming Gong ◽  
Yi Zeng ◽  
Hongli Zhao ◽  
Jingkai Yang
Keyword(s):  
Prussian Blue ◽  
Electrochromic Device ◽  
Core Shell ◽  
Shell Nanostructures

scholarly journals Iron Based Core-Shell Structures as Versatile Materials: Magnetic Support and Solid Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 72
Author(s):  
Christian Zambrzycki ◽  
Runbang Shao ◽  
Archismita Misra ◽  
Carsten Streb ◽  
Ulrich Herr ◽  
...  
Keyword(s):  
Water Purification ◽  
Functional Materials ◽  
Core Material ◽  
Solid Catalyst ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
The Core ◽  
Shell Nanostructures ◽  
Sio2 Shell ◽  
Iron Based

Core-shell materials are promising functional materials for fundamental research and industrial application, as their properties can be adapted for specific applications. In particular, particles featuring iron or iron oxide as core material are relevant since they combine magnetic and catalytic properties. The addition of an SiO2 shell around the core particles introduces additional design aspects, such as a pore structure and surface functionalization. Herein, we describe the synthesis and application of iron-based core-shell nanoparticles for two different fields of research that is heterogeneous catalysis and water purification. The iron-based core shell materials were characterized by transmission electron microscopy, as well as N2-physisorption, X-ray diffraction, and vibrating-sample magnetometer measurements in order to correlate their properties with the performance in the target applications. Investigations of these materials in CO2 hydrogenation and water purification show their versatility and applicability in different fields of research and application, after suitable individual functionalization of the core-shell precursor. For design and application of magnetically separable particles, the SiO2 shell is surface-functionalized with an ionic liquid in order to bind water pollutants selectively. The core requires no functionalization, as it provides suitable magnetic properties in the as-made state. For catalytic application in synthesis gas reactions, the SiO2-stabilized core nanoparticles are reductively functionalized to provide the catalytically active metallic iron sites. Therefore, Fe@SiO2 core-shell nanostructures are shown to provide platform materials for various fields of application, after a specific functionalization.

scholarly journals Dual-Cation Electrolytes Crosslinked with MXene for High-Performance Electrochromic Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 874
Author(s):  
Soyoung Bae ◽  
Youngno Kim ◽  
Jeong Min Kim ◽  
Jung Hyun Kim
Keyword(s):  
Ionic Conductivity ◽  
Response Time ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Fast Response ◽  
High Ionic Conductivity ◽  
Electrochromic Device ◽  
Fast Response Time ◽  
Coloration Efficiency ◽  
Conduction Pathway

MXene, a 2D material, is used as a filler to manufacture polymer electrolytes with high ionic conductivity because of its unique sheet shape, large specific surface area and high aspect ratio. Because MXene has numerous -OH groups on its surface, it can cause dehydration and condensation reactions with poly(4-styrenesulfonic acid) (PSSA) and consequently create pathways for the conduction of cations. The movement of Grotthuss-type hydrogen ions along the cation-conduction pathway is promoted and a high ionic conductivity can be obtained. In addition, when electrolytes composed of a conventional acid or metal salt alone is applied to an electrochromic device (ECD), it does not bring out fast response time, high coloration efficiency and transmittance contrast simultaneously. Therefore, dual-cation electrolytes are designed for high-performance ECDs. Bis(trifluoromethylsulfonyl)amine lithium salt (LiTFSI) was used as a source of lithium ions and PSSA crosslinked with MXene was used as a source of protons. Dual-Cation electrolytes crosslinked with MXene was applied to an indium tin oxide-free, all-solution-processable ECD. The effect of applying the electrolyte to the device was verified in terms of response time, coloration efficiency and transmittance contrast. The ECD with a size of 5 × 5 cm2 showed a high transmittance contrast of 66.7%, fast response time (8 s/15 s) and high coloration efficiency of 340.6 cm2/C.

Linear diameter dependence magnetization of Fe-CoNi core-shell nanostructures

2021 ◽  
pp. 168164
Author(s):  
S. Parajuli ◽  
J.F. Feng ◽  
M. Irfan ◽  
C. Cheng ◽  
X.M. Zhang ◽  
...  
Keyword(s):  
Core Shell ◽  
Shell Nanostructures ◽  
Linear Diameter

Nonlinear optical behavior of Au@Ag core- shell nanostructures

2021 ◽  
pp. 115935
Author(s):  
E. Shiju ◽  
T. Abhijith ◽  
D. Narayana Rao ◽  
K. Chandrasekharan
Keyword(s):  
Nonlinear Optical ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Optical Behavior

Electromagnetic response of SiO2@Fe3O4 core shell nanostructures in the THz regime

2021 ◽  
pp. 1-1
Author(s):  
Arka Chaudhuri ◽  
Rupali Rakshit ◽  
Kazunori Serita ◽  
Masayoshi Tonouchi ◽  
Kalyan Mandal
Keyword(s):  
Electromagnetic Response ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Fe3o4 Core
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