Results 51 to 60 of about 3,070 (183)

Flogisto versus oxígeno: una nueva reconstrucción y su fundamentación histórica

open access: yesCrítica, 2018
En este trabajo desarrollamos reconstrucciones estructuralistas de las teorías del flogisto, de Priestley, y del oxígeno, de Lavoisier. Nuestra propuesta es una alternativa a la de Caamaño (2009 y 2011) en una pretensión de ajustarnos más a las ...
José L. Falguera   +1 more
doaj   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel   +4 more
wiley   +1 more source

SYNTHESIS AND CHARACTERISATIONS OF SIX NEW BIS-THIOSEMICARBAZONE LIGANDS

open access: yesStudia Universitatis Moldaviae: Stiinte reale si ale naturii, 2021
Six new bis-thiosemicarbazones ligands were synthesized with rigid or flexible organic chemical links between the two thiosemicarbazones moieties. Such ligands have been designed for the synthesis of polymetallic coordination complexes.
Diana CEBOTARI   +3 more
doaj  

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Designing Dual-State and Aggregation-Induced Emissive Luminogens from Lignocellulosic Biosourced Molecules

open access: yesMolecules
Utilizing lignocellulosic biosourced platforms, we synthesized novel cyanostilbene (CS) derivatives featuring the 3,4-dimethoxyphenyl moiety. These derivatives were investigated for their emission properties in both solution and solid states.
Maelys Bonnot   +3 more
doaj   +1 more source

Enhanced Energy Transfer from a Metal–Organic Framework to a Highly Confined Organic Phosphorescent Dye

open access: yesAdvanced Science, Volume 13, Issue 30, 28 May 2026.
A phosphorescent dye was designed to fit in a hand‐to‐glove fashion into the 1D‐pore channels of MIL‐68(In). We synthesized MIL‐68(In) as powder and thin films, loaded the dye into the pores with controlled packing, and found that the phosphorescence and quantum yield are enhanced.
Bahram Hosseini Monjezi   +12 more
wiley   +1 more source

Priestley, Scheele, Lavoisier, and the Burning Lenses

open access: yesRevista CENIC Ciencias Químicas, 2019
The purpose of this article was to familiarize readers with burning lenses, which were used by 18th century by some English and French chemists as a means of reaching high temperatures. However, not all experiments have given satisfactory results.
Aleksander Sztejnberg
doaj  

Capacitive Pixelated CMOS Electronic Nose

open access: yesAdvanced Electronic Materials, Volume 12, Issue 10, 25 May 2026.
A 1024‐pixel CMOS capacitive E‐nose with inkjet‐printed MOFs and polymer layers yields gas‐specific capacitance fingerprints under humid conditions, discriminating toluene from 2‐butanone at low power. ABSTRACT Although some of the human senses can nowadays be replaced by low‐cost electronic sensors such as microphones and image sensors, a compact low ...
M. A. Basyooni‐M. Kabatas   +7 more
wiley   +1 more source

Hybrid Modification Strategies of Metal–Organic Frameworks: A Review on Structural Design and Environmental Applications

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
This review examines how hybrid modification strategies enhance the structural design and environmental performance of metal–organic frameworks (MOFs). It outlines key synthesis routes, functionalization approaches, and integration with complementary materials, highlighting advances in pollutant removal, sensing, and sustainable remediation.
Samar H. Elagamy   +3 more
wiley   +1 more source

Highlighting real capacitor behavior in liquid ammonia of passivated n-InP by thin Polyphosphazene film

open access: yesElectrochemistry Communications
Semiconductor/liquid junctions exhibit distinctive electrochemical behaviors. This study investigates the passivation of lightly doped (1015 cm−3) n-type indium phosphide (n-InP) in liquid ammonia.
Gianluca Visagli   +2 more
doaj   +1 more source

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