Nadia Laschuk

Nadia Laschuk
Ontario Tech University | UOIT · Faculty of Science

Bachelor of Science

About

20
Publications
1,189
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269
Citations

Publications

Publications (20)
Article
Electrochromic Materials Olena V. Zenkina and co-workers utilize molecularly defined Os and Co complexes covalently embedded onto conductive support to create colorful, durable, and effective electrochromic materials for “smart” energysaving signage in article 2100460. The image represents the importance of external lightening on the visual color p...
Article
Modern electrochromic devices (ECDs) have found a wide range of applications, which are not limited to the traditional design of “smart” windows and self-dimming mirrors. Novel cutting-edge applications in optoelectronics and particularly in low-energy displays and “smart” signage require electrochromic materials (ECMs) that demonstrate significant...
Article
The Cover Feature shows an artistic representation, inspired by M.C. Escher's “Another World II”, from within the development of solid‐state electrochromic device architectures with the ultimate aim to create a transparent non‐emissive monitor. Fine‐tuning the nature of the counter electrode followed by the optimization of the potential range and m...
Article
The paper reports a general methodology for the rational tuning and optimization of electrochromic devices (ECDs) that are based on a monolayer of Fe (II) (4’‐(4‐pyridyl)‐2,2’:6’,2”‐terpyridine) 2 complex (Fe 4’T) covalently embedded onto a screen‐printed high‐surface area indium tin oxide working electrode. We demonstrate that the nature of the co...
Article
Electrochromic materials (ECMs) change their colored state with changes in potential. When applied as an energy storage device, they reveal the current state of charge using intrinsic properties already within the ECM. This is possible because supercapacitors of the faradaic type, called pseudocapacitors, rely on the same redox reactions that induc...
Article
Sequential covalent embedding of cobalt, osmium, and iron complexes of 4'-(pyridin-4-yl)-2,2':6',2''-terpyridine to surface-enhanced support pre-functionalized with a templating layer results in hetero-bimetallic (Os-Fe and Co-Fe) and hetero-trimetallic (Co-Os-Fe) monolayer materials. During sequential embedding, each subsequent metal complex depos...
Article
Full-text available
Electrochemical impedance spectroscopy (EIS) is a highly applicable electrochemical, analytical, and non-invasive technique for materials characterization, which allows the user to evaluate the impact, efficiency, and magnitude of different components within an electrical circuit at a higher resolution than other common electrochemical techniques s...
Article
The article describes novel electrochromic materials (ECMs) that are based on a monolayer consisting of two or three isostructural metal complexes of 4'-(pyridin-4-yl)-2,2':6',2''-terpyridine simultaneously deposited on surface-enhanced support. The support was made by screen printing of indium tin oxide (ITO) nanoparticles on ITO-glass and has a s...
Article
Current climate challenges in urban areas require practical solutions to mitigate the negative environmental impacts attributed to cities such as the urban heat island (UHI) effect. Thermal stresses caused by high temperatures , temperature fluctuations, and UV radiation exposed to building surfaces negatively affect urban and indoor building therm...
Article
Reduced bandgap metal oxide materials are consider an alternative to carbon black supports for fuel cell catalysts. Here we report a unique N-enriched titanium nanotube suboxide doped with molybdenum (TNTS-Mo) fuel cell catalyst support. The support was prepared by the surface modification of a TNTS-Mo with a terpyridine (TPY) ligand, yielding TPY/...
Article
In this study, we present a range of efficient highly-durable electrochromic materials that demonstrate excellent redox and lifetime stability, sufficient coloration contrast ratios, and the best in their class electron transfer constants. The materials were formed by anchoring as little as a monolayer of pre-defined iron complexes on a surface-enh...
Article
Full-text available
The ability to form complex 3D architectures using nanoparticles (NPs) as the building blocks and complex macromolecules that direct these assemblies remains a challenging objective for nanotechnology. Here we report results in which the partial substitution of classical Turkevich citrate-capped gold NPs by a novel, heteroaromatic ligand (L) result...
Article
Surface-anchored coordination-based molecular assemblies (CBMA) are very powerful tools for the design of modern materials. The CBMAs were created using bis-terpyridine - iron coordination chemistry by the alternation of linear or bent bis-terpyridine ligands and Fe (II) metal centers. The coordination of the bent ligand results in the formation of...
Article
Novel electrochromic (EC) materials were developed and formed by a two-step chemical deposition process. First, a self-assembled monolayer (SAM) of 2,2':6',2''-terpyridin-4'-ylphosphonic acid, L, was deposited on the surface of a nanostructured conductive indium − tin oxide (ITO) screen-printed support by a simple submerging of the support into an...
Article
Optical sensors utilizing visual responses for the identification of metal ions require reliable molecular systems able to operate selectively in multicomponent solutions. Herein, we report a water-soluble terpyridyl-based ligand that demonstrates effective quantification of parts per billion to parts per million levels of Fe2+, Fe3+, Zn2+, and Ru3...

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Projects

Project (1)
Project
Develop atom efficient electrochromic materials using inorganic metal complexes.