Results 71 to 80 of about 205,731 (373)

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

Theoretical Study about the Effect of Halogen Substitution on the Reactivity of Antitumor 3-Formylchromones and Their Free Radicals

Journal of Chemistry, 2017
The mandatory presence of a chlorine atom on the aromatic ring of 6-hydroxy-3-formyl angular chromones, on the respiration inhibition of mammary carcinoma mouse, is explained through a computational study of these compounds.
Maximiliano Martínez-Cifuentes, Boris Weiss-López, Ramiro Araya-Maturana   +2 more
doaj   +1 more source

A Kinetic Approach of DPPH Free Radical Assay of Ferulate-Based Protic Ionic Liquids (PILs)

Molecules, 2018
The antiradical efficiency (AE) and kinetic behavior of a new ferulate-based protic ionic liquids (PILs) were described using 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical assay.
Nur Afiqah Ahmad, Khairulazhar Jumbri, Anita Ramli, Noraini Abd Ghani, Haslina Ahmad, Jun Wei Lim   +5 more
doaj   +1 more source

Poly(1,4‐anthraquinone) as an Organic Electrode Material: Interplay of the Electronic and Structural Properties due to the Unusual Lone‐Pair‐π Conjugation

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
In this study, the unique role of the unusual lone‐pair‐π conjugation mechanism in poly(1,4‐anthraquinone) (P14AQ) is explored as an organic electrode material. Unlike traditional π‐π interactions, P14AQ's conjugation involves lone pairs of oxygen atoms interacting with the π cloud of adjacent units, enabling stable charge transport even with minimal π‐
Xiaotong Zhang, Piotr de Silva
wiley   +1 more source

Hydroxylated Mg-rich Amorphous Silicates as Catalysts for Molecular Hydrogen Formation in the Interstellar Medium

The Astrophysical Journal
We present results from an experimental study on the interaction of atomic deuterium with magnesium-rich amorphous enstatite- and forsterite-type silicates. Infrared spectroscopy was used to examine the process. During deuterium atom exposure, deuteroxyl
V. Mennella, T. Suhasaria, B. Kerkeni, G. Ouerfelli   +3 more
doaj   +1 more source

Bromination of hydrocarbons with CBr4, initiated by light-emitting diode irradiation

Beilstein Journal of Organic Chemistry, 2013
The bromination of hydrocarbons with CBr4 as a bromine source, induced by light-emitting diode (LED) irradiation, has been developed. Monobromides were synthesized with high efficiency without the need for any additives, catalysts, heating, or inert ...
Yuta Nishina, Bunsho Ohtani, Kotaro Kikushima   +2 more
doaj   +1 more source

Valence Tautomerism in Chromium Half-Sandwich Triarylmethylium Dyads

Inorganics, 2023
Valence tautomerism (VT) may occur if a molecule contains two chemically different redox-active units, which differ only slightly in their intrinsic redox potential.
Anja Rehse, Michael Linseis, Mykhailo Azarkh, Malte Drescher, Rainer F. Winter   +4 more
doaj   +1 more source

Aliphatic C-H Functionalization Using Pyridine N-Oxides as H-Atom Abstraction Agents.

ACS Catalysis, 2022
The alkylation and heteroarylation of unactivated tertiary, secondary, and primary C(sp3)-H bonds was achieved by employing an acridinium photoredox catalyst along with readily available pyridine Noxides as hydrogen atom transfer (HAT) precursors under ...
M. Schlegel, Siran Qian, David A. Nicewicz   +2 more
semanticscholar   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Surface evolution during crystalline silicon film growth by low-temperature hot-wire chemical vapor deposition on silicon substrates [PDF]

, 2006
We investigate the low-temperature growth of crystalline thin silicon films: epitaxial, twinned, and polycrystalline, by hot-wire chemical vapor deposition (HWCVD).
Atwater, Harry A., Park, Young-Bae, Richardson, Christine Esber   +2 more
core   +1 more source