scholarly journals Fabrication and Properties of Polyimide/Aluminum Oxide Composite Films via Different Alkali Etching and Ion Exchange Technique

2020 ◽  
Vol 782 ◽  
pp. 022096
Author(s):  
Mingyu Zhang ◽  
Lizhu Liu ◽  
Chunqi Zhang
Keyword(s):  
Ion Exchange ◽  
Aluminum Oxide ◽  
Composite Films ◽  
Oxide Composite ◽  
Exchange Technique

Fabrication and Investigation on the Polyimide/Al2O3 Composite Films via Ion Exchange Technology

2021 ◽  
Vol 871 ◽  
pp. 264-270
Author(s):  
Ming Yu Zhang ◽  
Ya Wang ◽  
Li Zhu Liu ◽  
Wei Song ◽  
Chun Qi Zhang
Keyword(s):  
Ion Exchange ◽  
Breakdown Strength ◽  
Composite Films ◽  
Interface Layer ◽  
Polyimide Films ◽  
Hydrolysis Time ◽  
Alumina Layer ◽  
Pristine Film ◽  
Better Than ◽  
Exchange Technique

Polyimide/Al2O3 films were prepared by the surface modification with different hydrolysis time, ion exchange technique and heat treatment using polyimide films as the substrates and aluminum chloride as the precursor of Al2O3. The morphology, thermal properties and electrical properties of the composite films were characterized and tested. The results indicated the alumina distributed in certain thickness on the surface of the films and there was a clear interface layer between the alumina layer and the substrate. The breakdown strength of the composite films maintains the excellent properties of the pristine film while the thermal and corona-resistant time properties of composite films were better than the pristine film due to introducing aluminum oxide. The composite film which used KOH to treat for 90 min has the longest corona-resistant time (101.2 min), which was almost 10 times longer than the pristine film.

An ion-exchange technique for concentrating ammonia from small volumes of seawater

1981 ◽  
Vol 10 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Ronald T. Riley ◽  
Michael C. Mix
Keyword(s):  
Ion Exchange ◽  
Exchange Technique

ChemInform Abstract: Catalytic Asymmetric Dihydroxylation of Olefins with New Catalysts: The First Example of Heterogenization of OsO42- by Ion-Exchange Technique.

ChemInform ◽  
2010 ◽  
Vol 33 (4) ◽  
pp. no-no
Author(s):  
Boyapati M. Choudary ◽  
Naidu S. Chowdari ◽  
Mannepalli L. Kantam ◽  
Kondapuram V. Raghavan
Keyword(s):  
Ion Exchange ◽  
Asymmetric Dihydroxylation ◽  
Catalytic Asymmetric ◽  
Exchange Technique

Fabrication of Nickel Oxide Nanocomposite Layer on a Flexible Polyimide Substrate via Ion Exchange Technique

2009 ◽  
Vol 2 (1) ◽  
pp. 111-118 ◽  
Author(s):  
Shuxiang Mu ◽  
Dezhen Wu ◽  
Yue Wang ◽  
Zhanpeng Wu ◽  
Xiaoping Yang ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Nickel Oxide ◽  
Nanocomposite Layer ◽  
Polyimide Substrate ◽  
Exchange Technique

Micro-capacitor with vertically grown silver nanowires and bismuth ferric oxide composite structures on silicon substrates

2016 ◽  
Vol 51 (7) ◽  
pp. 965-969 ◽  
Author(s):  
Daniel Choi ◽  
Boo Hyun An ◽  
Mariam Mansouri ◽  
Dima Ali ◽  
Malathe Khalil ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxide Film ◽  
Aluminum Oxide ◽  
Ferric Oxide ◽  
Silver Nanowires ◽  
Silicon Substrates ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Oxide Composite ◽  
Aluminum Oxide Film

We have designed and demonstrated a complementary metal-oxide-semiconductor compatible process for fabricating high capacitance micro-capacitors based on vertically grown silver nanowires on silicon substrates. Array of silver nanowires with high-aspect ratio were electrochemically grown in the pores of anodized aluminum oxide film, which was pre-formed through anodization of aluminum thin film deposited on titanium/silicon oxide/silicon substrates. High dielectric bismuth ferric oxide layer was electrodeposited to fill the gap between silver nanowires after anodized aluminum oxide film was removed. It was found that the micro-capacitor based on the silver nanowires/bismuth ferric oxide composite film possessed higher capacitance by approximately one order of magnitude from the COMSOL simulation results from the flat Ag thin-film capacitor and the silver nanowire capacitor.

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