scholarly journals Use of Different Metal Oxide Coatings in Stainless Steel Based ECDs for Smart Textiles

Electronics ◽  
2021 ◽  
Vol 10 (20) ◽  
pp. 2529
Author(s):  
Martin Rozman ◽  
Nikolina Cetin ◽  
Urban Bren ◽  
Miha Lukšič

Electrochromism is the ability of a material to selectively change its coloration under the influence of an external electric current/potential and maintain it even after the power source has been disconnected. Devices that use such a mechanism are known as electrochromic devices (ECDs). Over the years, significant effort has been invested into the development of flexible ECDs. Such electrochromic tapes or fibers can be used as smart textiles. Recently, we utilized a novel geometrical approach in assembling electrochromic tapes which does not require the use of optically transparent electrodes. The so-called inverted sandwich ECD configuration can employ various color-changing mechanisms, e.g., intercalation, redox reactions of electrolytes or reactions on electrode surfaces. One of the most frequently used electrochromic metal oxides is WO3. However, other metal oxides with different coloration responses also exist. In this paper, we explore the use of V2O5 and TiO2 in metal-tape-based ECDs in the inverted sandwich configuration and compare their performance with WO3-based devices. Morphological features of metal oxide thin layers were investigated with scanning electron microscopy (SEM), and the performance of the tapes was investigated electrochemically and spectroscopically. We demonstrate that well-established preparation techniques (e.g., sol–gel synthesis) along with coating approaches (e.g., dipping) are adequate to prepare optically nontransparent fiber electrodes. Depending on the metal oxide, flexible electrochromic fiber devices exhibiting different coloration patterns can be assembled. Devices with TiO2 showed little coloration response, while much better performance was achieved in the case of V2O5 and WO3 ECDs.

2010 ◽  
Vol 65 (8) ◽  
pp. 1015-1023 ◽  
Author(s):  
Andrea Pucci ◽  
Nicola Pinna

Over the last decade, the number of publications concerning the non-aqueous sol-gel synthesis of metal oxide nanostructures has rapidly increased, as this method affords an immense variety of sizes and shapes of the products. This review highlights the versatility of non-aqueous sol-gel routes, under solvothermal conditions, to metal oxide and hybrid materials. In particular, the easier control over the reaction kinetics, compared to aqueous methods, allows to better match the reactivity between metal oxide precursors. This permits to produce complex multimetal and doped oxides at low temperature, as it is discussed in detail for the case of doped group IV metal oxides


2017 ◽  
Vol 5 (20) ◽  
pp. 9561-9571 ◽  
Author(s):  
Ruohong Sui ◽  
Sarah K. Carefoot ◽  
Christopher B. Lavery ◽  
Connor E. Deering ◽  
Kevin L. Lesage ◽  
...  

One-pot sol–gel synthesis of ternary metal oxides for selective adsorption of thiols from H2S/CO2-containing gas.


1988 ◽  
Vol 121 ◽  
Author(s):  
Mariquita A. Accibal ◽  
Jonathan W. Draxton ◽  
Allen H. Gabor ◽  
Wayne L. Gladfelter ◽  
Beth Anne Hassler ◽  
...  

ABSTRACTA comparison of the use of three different coordination compounds of copper as precursors for the sol-gel synthesis of YBa2Cu3O7-δ has been made. For yttrium, the tris(isopropoxide) was used exclusively, while the use of both Ba(O-i-Pr)2 and Ba(OCH2CH2OEt)2 (prepared in situ from Ba metal) as sources for Ba were studied. After dissolving Y(O-i-pr)3, a Ba source, and the copper(I) alkoxide, [Cu(O-i-Bu)]4, hydrolysis led immediately to an orange gelatinous solid which yielded YBa2Cu3O7-δ upon firing in oxygen. Copper(II) acetate was found to give heterogeneous mixtures under our conditions and was not further studied. Copper(II) acac (acac = acetylacetonate) yielded the best results. Partially hydrolyzed solutions of Cu(acac)2, Ba(OCH2CH2OEt)2, and Y(O-i-pr)3 were spin coated on SrTi03 (100) and fired under oxygen to give oriented (b axis normal to the surface) thin films of YBa2Cu3O7-δ. The onset of superconductivity for the films was 92 K, but they did not reach zero resistance until much lower temperatures.


2011 ◽  
Vol 474-476 ◽  
pp. 195-199 ◽  
Author(s):  
Ai Hong Guo ◽  
Xue Jiao Tang ◽  
Su Juan Zhang

Water-based infrared ray shielding coating, that is, nanometer metal oxide is added to the water-based paint, which has anti-IR features without affecting the transparency of the paint. In this paper, the nanometer oxides are prepared by sol-gel method, added into polypropylene sour. In order to improve the infrared ray shielding of the thin film, two kinds of nanometer oxides are added into the polypropylene sour with different volume ratios, the shielding performance of the paint is studied. Experimental results show: in the 8000 ~ 4000cm-1 range, the transmittances of infrared ray is 30% to 75%; in 4000 ~ 400cm-1 range, transmittances decrease significantly; 3% ZnO, 3% Fe2O3, 3% Y2O3, 2% Al2O3 are the best mass ratio of every single nanometer oxide; the infrared shielding rate of Fe2O3 and Y2O3 mixture with the volume ratio of 1 to 4 is better than Fe2O3 and Y2O3 single.


2004 ◽  
Vol 350 ◽  
pp. 173-181 ◽  
Author(s):  
Brady J. Clapsaddle ◽  
David W. Sprehn ◽  
Alexander E. Gash ◽  
Joe H. Satcher Jr. ◽  
Randall L. Simpson

2016 ◽  
Vol 42 (10) ◽  
pp. 12119-12128 ◽  
Author(s):  
Ravi Kant Upadhyay ◽  
Santanu Pan ◽  
Anjan Barman ◽  
James A. McLaughlin ◽  
Susanta Sinha Roy

2016 ◽  
Vol 4 (11) ◽  
pp. 4032-4043 ◽  
Author(s):  
Jianchao Ye ◽  
Yonghao An ◽  
Elizabeth Montalvo ◽  
Patrick G. Campbell ◽  
Marcus A. Worsley ◽  
...  

The conversion-reaction-based metal oxide/graphene aerogels show much higher capacitive synergy than that observed for intercalation-based TiO2/graphene aerogels.


Sign in / Sign up

Export Citation Format

Share Document