Establishment of Reaction Phase Diagrams of Pseudo Quaternary Li-Ni-Co-Ti Oxides Library

2007 ◽  
Vol 1024 ◽  
Author(s):  
Kenjiro Fujimoto ◽  
Kazuhiro Onoda ◽  
Shigeru Ito
Keyword(s):  
Spray Deposition ◽  
Functional Materials ◽  
Deposition Process ◽  
Composition Region ◽  
Spinel Type ◽  
Reaction Phase ◽  
Electrostatic Spray Deposition ◽  
Ti Oxides ◽  
Short Time ◽  
Electrostatic Spray

AbstractReaction phase diagram of pseudo four-components Li-Ni-Co-Ti oxides was established for finding new chemical composition and functional materials by the combinatorial high-throughput preparation system “M-ist Combi,” based on electrostatic spray deposition process and the combinatorial x-ray powder diffraction apparatus. The new layered-type compounds were found wider composition region than the previous reported composition region of LiNi0.8-yCo0.2TiyO2 (0≤y≤0.1). Furthermore, the new composition regions of single phase for spinel-type and rock salt-type compounds in pseudo four-components Li-Ni-Co-Ti oxides system were also found in a short time.

Combinatorial exploration of newly pseudo-quintenary layered-type Li-Ni-Co-Fe-Ti oxides

2012 ◽  
Vol 1425 ◽  
Author(s):  
Kenjiro Fujimoto ◽  
Tomoyuki Kanno ◽  
Keita Ikezawa ◽  
Yuichiro Imanari ◽  
Maiko Sakai ◽  
...  
Keyword(s):  
Single Phase ◽  
Spray Deposition ◽  
Lithium Ion ◽  
Phase Identification ◽  
Composition Region ◽  
Spinel Type ◽  
Electrostatic Spray Deposition ◽  
Structure Information ◽  
Air Atmosphere ◽  
Ti Oxides

ABSTRACTIn order to decrease the use of cobalt element as in LiCoO2,which is mainly used for cathode materials in lithium ion secondary batteries, a newly pseudo-quintenary layered-type Fe-doped Li-Ni-Co-Ti oxides library was created using the combinatorial technology "M-ist Combi system" based on the electrostatic spray deposition method.The starting materials used were LiNO3, Ni(NO3)2·6H2O, Co(NO3)2·6H2O, Fe(NO3)3·9H2O and TiO2 nano-slurry. These materials were dissolved or dispersed in a mixture of ethanol and butyl carbitol and mixed in a predefined ratio, respectively. Subsequently, each of the mixtures was sprayed and dried on a grounded reaction plate that was heated to 400˚C. The deposited powder was sintered at 700˚C for 5 hours in air atmosphere. Phase identification of the obtained powder library was evaluated by a combinatorial powder x-ray diffractometer. A reaction phase diagram was established from the structure information and chemical composition by ICP-AES measurement.From all results, single-phase layered-type compounds showed the composition region that included many Co and Ni elements. On the other hand, single phase spinel-type compounds existed in the Ti-rich composition region.

scholarly journals A Humidity Sensor Based on Silver Nanoparticles Thin Film Prepared by Electrostatic Spray Deposition Process

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Thutiyaporn Thiwawong ◽  
Korakot Onlaor ◽  
Benchapol Tunhoo
Keyword(s):  
Thin Film ◽  
Silver Nanoparticles ◽  
Humidity Sensor ◽  
Spray Deposition ◽  
Complex Impedance ◽  
Impedance Analysis ◽  
Deposition Process ◽  
Electrostatic Spray Deposition ◽  
Complex Impedance Analysis ◽  
Electrostatic Spray

In this work, thin film of silver nanoparticles for humidity sensor application was deposited by electrostatic spray deposition technique. The influence of the deposition times on properties of films was studied. The crystal structures of sample films, their surface morphology, and optical properties have been investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and UV-VIS spectrophotometer, respectively. The crystalline structure of silver nanoparticles thin film was found in the orientation of (100) and (200) planes of cubic structure at diffraction angles 2θ  =  38.2° and 44.3°, respectively. Moreover, the silver nanoparticles thin films humidity sensor was fabricated onto the interdigitated electrodes. The sensor exhibited the humidity adsorption and desorption properties. The sensing mechanisms of the device were also elucidated by complex impedance analysis.

High-Throughput Preparation and Characterization of Powder and Thin-Film Library for Electrode Materials

2007 ◽  
Vol 534-536 ◽  
pp. 469-472 ◽  
Author(s):  
Kenjiro Fujimoto ◽  
Kazuhiro Onoda ◽  
Shigeru Ito
Keyword(s):  
Single Phase ◽  
Electrode Materials ◽  
Spray Deposition ◽  
Deposition Method ◽  
Composition Region ◽  
Film Library ◽  
Electrostatic Spray Deposition ◽  
Electrostatic Spray ◽  
Spray Deposition Method

Powder library of pseudo four components Li-Ni-Co-Ti compounds were prepared for exploring the composition region with the single phase of the layer-type structure by using combinatorial high-throuput preparation system “M-ist Combi” based on electrostatic spray deposition method. The new layer-type compounds were found wider composition region than the previous report. This process is promising way to find functional multi-component materials.

scholarly journals Al2O3 + TiO2 Thin Film made by Electrostatic Spray Deposition

2016 ◽  
Vol 16 (3) ◽  
pp. 47-55 ◽  
Author(s):  
A. K. Krella ◽  
A. Krupa ◽  
A.T. Sobczyk ◽  
A. Jaworek
Keyword(s):  
Thin Film ◽  
Spray Deposition ◽  
Colloidal Suspension ◽  
Precursor Solution ◽  
Deposition Process ◽  
Film Deposition ◽  
Protective Properties ◽  
Electrostatic Spray Deposition ◽  
Ceramic Thin Film ◽  
Electrostatic Spray

Abstract In this work electrostatic spray deposition process was used to deposit thin Al2O3 + TiO2 ceramic thin film on X10CrAlSi18 steel from colloidal suspension of TiO2 powder in Al2O3 precursor solution. The precursor was 3% solution of Al2(NO3)3 in ethanol. An influence of the thermal treatment after film deposition on protective properties against high temperatures and film endurance were investigated. The resistance against thermal cycles and dynamic impacts were tested. Performed investigations showed that the best protective properties had the Al2O3 + TiO2 film sintered at 1000°C.

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