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Electro- and Photo- Dual Responsive Chromatic Devices for High-Contrast Dimmers.
Adv Mater
December 2024
Institute of Frontier & Interdisciplinary Science, Shandong University, Qingdao, 266237, China.
Electrochromism stands out as a highly promising technology for applications including variable optical attenuators, optical switches, transparent displays, and dynamic windows. The pursuit of high-contrast tunability in electrochromic devices remains a challenging goal. Here, the first photochromic hydrogel electrolyte is reported for electro- and photo-dual responsive chromatic devices that yield a high transmittance contrast at 633 nm (ΔT = 83.
View Article and Find Full Text PDFA Multimode Dynamic Color-Changing Device for Smart Windows Based on Integrating Thermochromic and Electrochromic Properties.
ACS Appl Mater Interfaces
November 2024
Key Laboratory of Science & Technology of Eco-Textile, Jiangnan University, Ministry of Education, Wuxi, Jiangsu 214122, China.
Electro- and thermochromic materials have been greatly applied in smart windows and displays due to the excellent properties of color variation and solar radiation. However, the mono color and single response to voltage and temperature hinder their application and development. Here, a multimode dynamic color-changing device (T/ECD) was developed by integrating the electrochromic property of synthetic viologen dyes and the thermochromic properties of hydroxypropyl acrylate (HPA).
View Article and Find Full Text PDFEngineering of Single-Atomic Sites for Electro- and Photo-Catalytic HO Production.
Adv Mater
December 2024
Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China.
Article Synopsis
- Direct electro- and photo-synthesis of hydrogen peroxide (HO) through the two-electron oxygen reduction reaction (ORR) and the hydrogen peroxide oxidation reaction (WOR) present innovative solutions for on-the-spot production of HO.
- The review emphasizes the significance of exploring single-atom catalysts (SACs), which have unique isolated active sites that enhance catalytic processes, particularly in the context of metal and non-metal single-atom sites for HO production.
- Additionally, the article covers the local environments' influence on the performance of SACs and highlights future directions for research in advancing SAC technology for HO synthesis and other catalytic applications.
Electric potential energy optimized 3D radial sampling trajectories for MRI.
Sci Rep
October 2024
Translational Medicine, Hospital for Sick Children, Toronto, ON, Canada.
A novel method for creating "golden" 3D center-out radial MRI sampling trajectories was developed and analyzed. This method, called ELECTRO (ELECTRic potential energy Optimized), uses repulsive forces to minimize electric potential energy. An objective function [Formula: see text], the electric potential energies of all subsets of consecutive readouts in a 3D radial trajectory, and its reduced form were minimized using a multi-stage optimization strategy.
View Article and Find Full Text PDFIonic Liquids in Metal, Photo-, Electro-, and (Bio) Catalysis.
Chem Rev
May 2024
Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil.
Ionic liquids (ILs) have unique physicochemical properties that make them advantageous for catalysis, such as low vapor pressure, non-flammability, high thermal and chemical stabilities, and the ability to enhance the activity and stability of (bio)catalysts. ILs can improve the efficiency, selectivity, and sustainability of bio(transformations) by acting as activators of enzymes, selectively dissolving substrates and products, and reducing toxicity. They can also be recycled and reused multiple times without losing their effectiveness.
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