Results 101 to 110 of about 17,342 (289)

A chemical probe technique for the determination of reactive halogen species in aqueous solution: Part 1 – bromide solutions [PDF]

open access: yesAtmospheric Chemistry and Physics, 2006
Reactive halogen species (X*=X•, •X2-, X2 and HOX, where X=Br, Cl, or I) in seawater, sea-salt particles, and snowpacks play important roles in the chemistry of the marine boundary layer.
B. M. Matthew   +2 more
doaj  

Characterization of Halogen (Cl, Br, I) Emissions from Cooking Fuels in Nigerian Households Using Energy-Dispersive X-ray Fluorescence Spectrometry

open access: yesEQA, 2021
Studies have shown that most of the fuels used in developing countries were generally from wood biomass. Residential emission from traditional biomass cookstoves is a major source of indoor and outdoor air pollution.
Francis Olawale Abulude   +3 more
doaj  

Halogen Inhalation-Induced Lung Injury and Acute Respiratory Distress Syndrome

open access: yesChinese Medical Journal, 2018
Objective: Exposure to halogens, such as chlorine or bromine, results in environmental and occupational hazard to the lung and other organs. Chlorine is highly toxic by inhalation, leading to dyspnea, hypoxemia, airway obstruction, pneumonitis, pulmonary
Ting Zhou   +4 more
doaj   +1 more source

Binding of halogens by a Cr8 metallacrown

open access: yes, 2018
A Cr8 metallacrown binds halogens X2 (Cl2, Br2 and I2) without loss of crystallinity; the binding has been studied by X-ray diffraction and thermodynamic ...
Vitorica-Yrezabal, Inigo   +4 more
core   +1 more source

Helicalization of Covalent Organic Framework Nanofibers with Amplified Spin Polarizability for Boosting Photocatalytic Hydrogen Evolution

open access: yesAdvanced Science, EarlyView.
A non‐covalent chirality‐induced strategy via chiral solvents is presented to synthesize helical 2D COF nanofibers with high crystallinity, high chirality, and high spin polarization. The helical structure enhances the concentration of photogenerated charges, suppresses exciton recombination, and extends carrier lifetimes, thereby significantly ...
Qi Zhong   +4 more
wiley   +1 more source

Facile Synthesis of Pd Nanocubes with Assistant of Iodide and Investigation of Their Electrocatalytic Performances Towards Formic Acid Oxidation

open access: yesNanomaterials, 2019
This article presents a facile, one-pot method using the aqueous phase for the synthesis of high-quality Pd nanocubes. In this study, Pd chloride was used as the precursor, sodium iodide as capping agent, and poly(vinylpyrrolidone) as surfactant and ...
Xuan Liu   +7 more
doaj   +1 more source

One‐Step, High‐Removal‐Rate and Low‐Damage Chemical Mechanical Polishing of InP Enabled by Hydrolysis Activated PF6− with In Situ Fluoride Passivation

open access: yesAdvanced Science, EarlyView.
In this work, we propose a CMP method for InP using NH4PF₆, which hydrolyzes under In3+ catalysis to form reactive species. These convert InP into low‐binding‐energy fluorides, facilitating removal and dissolution. The process delivers high material removal rates, smooth surfaces, and fluorine passivation that lowers defect density and improves ...
Shigong Fu   +5 more
wiley   +1 more source

Volcanic Halogens Processing and Impacts in the Troposphere and Stratosphere

open access: yes, 2018
International audienceVolcanoes release vast quantities of gases, including halogens (e.g. HBr, HCl) as well as sulfur (SO2). Volcanic SO2 is oxidized into sulfate aerosols in the atmosphere that impact climate and favor the destruction of stratospheric ...
Jourdain, Lise   +4 more
core   +1 more source

Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6)

open access: yes, 2000
P(論文)One of the striking features in Antarctic meteorites is overabundances of halogens, especially iodine. In order to investigate how these halogens are distributed in constituent mineral phases of Antarctic chondrites, the outer portion of Yamato (Y ...
Kato,Fujitaka   +2 more
core   +1 more source

Autonomous and Continuous Atmospheric Water Harvesting Using Modified Wood

open access: yesAdvanced Science, EarlyView.
A rigid, hydroxyl‐rich wood skeleton with graded channels is used as a multifunctional host to co‐incorporate a PNipam/PAA network and LiCl, creating a high‐performance sorbent for atmospheric water harvesting. The composite achieves rapid sorption, efficient low‐temperature desorption, and stable cycling, enabling a solar‐powered device with a high ...
Shiheng He   +7 more
wiley   +1 more source

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