Results 91 to 100 of about 153,907 (307)

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini   +7 more
wiley   +1 more source

Effect of Drying Method on Sulfur Dioxide Content in Edible Mushrooms and Endogenous Transformation Factors

open access: yesShipin gongye ke-ji
In this study, dietary risk assessment of sulfur dioxide content in both fresh and dried commercially available edible mushrooms (Tremella fuciformis, Lentinus edodes, and Agaricus blazei) was conducted through risk quotient and point assessment methods.
Yiming TIAN   +5 more
doaj   +1 more source

Geochemistry of Sulfur and Sulfur Compounds of the Cambrian Kuonamka Complex (Eastern Siberian Platform)

open access: yesGeoresursy, 2017
New results of research of sulfur from rocks and organic matter (OM) for the Kuonamka complex of the Lower and Middle Cambrian in the eastern Siberian platform have been demonstrated.
T.M. Parfenova
doaj   +1 more source

Synthesis of phosphonates and organofluorine compounds for bio-organic studies [PDF]

open access: yes, 1999
This thesis focuses on two main areas: the synthesis of novel anti-metabolites of 1-deoxy- D-xyulose-5-phosphate (DXP) and the stereoelectronics which influence the conformation of fluoromethyl groups in organic compounds.
Knight, Lee
core  

Seawater carbonate chemistry and biogenic dimethylated sulfur compounds cycling

open access: yes, 2019
Ocean acidification (OA) affects marine primary productivity and community structure. Therefore, OA may influence the biogeochemical cycles of volatile biogenic dimethyl sulfide (DMS), and its precursor dimethylsulfoniopropionate (DMSP) and photochemical
Zhang, Jing   +3 more
core   +1 more source

A Bilayered Inorganic‐Metal Interface Enables Highly Reversible Aluminum Deposition for Long‐Life Aqueous Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A gradient M/MOx (M = Sn, Cu, Cd) synergistic interphase was constructed on Al via a one‐step displacement reaction. This interphase leverages high aluminophilicity and ion‐buffering capability to accelerate desolvation, enhance Al3+ transport, and suppress side reactions, enabling ultrastable symmetric cell operation at 0.05 mA cm−2 for 1800 h with an
Shuang Cheng   +7 more
wiley   +1 more source

Reduction of Sulfur Compounds from Petroleum Fraction Using Oxidation-Adsorption Technique

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2015
Oxidation of sulfur compounds in fuel followed by an adsorption process were studied using two modes of operation, batch mode and continuous mode (fixed bed).
Nada Sadoon Ahmedzeki, Ban Jaber Ibrahem
doaj  

Desenvolvimento de procedimentos analíticos para a determinação de enxofre em carvão usando espectrometria de absorção molecular de alta resolução com fonte contínua em forno de grafite [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.Análise direta de amostras sólidas é uma boa alternativa para a determinação de enxofre ...
Mior, Renata
core  

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf   +4 more
wiley   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour   +11 more
wiley   +1 more source

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