Results 81 to 90 of about 1,066,601 (390)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Potential Unconventional Gas Plays in Mature Basin of the Czech Republic [PDF]

open access: yes, 2016
The presence of unconventional resources has been proven in deeper parts of mature oil and gas provinces and coal basins of the world. In this context, it is worth to focus also on the prospects of unconventional gas production from within hydrocarbon ...
Bujok, Petr   +4 more
core  

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Dynamics of laser-induced cavitation bubble during expansion over sharp-edge geometry submerged in liquid – an inside view by diffuse illumination

open access: yesUltrasonics Sonochemistry, 2021
Laser ablation in liquids is growing in popularity for various applications including nanoparticle production, breakdown spectroscopy, and surface functionalization.
Matej Senegačnik   +5 more
doaj  

Defect‐Induced Selectivity Modulation Using Copper Triazole Molecular Frameworks for Electrochemical CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
A Cu‐triazole and D‐Cu‐triazole MOF is studied for eCO2RR. After introducing open metal sites and reducing the particle size through a competitive coordination strategy with N,N‐diethylformamide, the defects significantly enhance and alter the catalytic properties with increased selectivity for C2+ products. Abstract Metal–organic frameworks (MOFs) are
Anirudha Shekhawat   +7 more
wiley   +1 more source

Laser beam hydrocarbon detector [PDF]

open access: yes, 1970
Portable instrument passes light from helium-neon laser at a wavelength of 3.39 microns through the atmosphere being monitored and measures attenuation of the laser beam.
Beam, B. H.   +2 more
core   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

Decarboxylative stereoretentive C–N coupling by harnessing aminating reagent

open access: yesNature Communications
In recent decades, strategies involving transition-metal catalyzed carbon-carbon or carbon-heteroatom bond coupling have emerged as potent synthetic tools for constructing intricate molecular architectures.
Jeonguk Kweon   +3 more
doaj   +1 more source

Film thickness measurements on five fluid formulations by the mercury squeeze film capacitance technique [PDF]

open access: yes
The thinning characteristics of five fluids were studied by measuring film thickness as a function of time. The mercury squeeze film capacitance technique was used. All tests were performed at room temperature.
Day, R.   +3 more
core   +1 more source

Quantum Dots and Perovskites‐Based Physically Unclonable Functions for Binary and Ternary Keys via Optical‐to‐Electrical Conversion

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates optoelectronic PUFs that improve on traditional optical and electrical PUFs. The absorber materials are randomly coated through spray coating, ligand exchange, and dynamic spin coating. Incident light generates wavelength‐dependent binary multikey and enhances security ternary keys, approaching near‐ideal inter‐ and intra ...
Hanseok Seo   +6 more
wiley   +1 more source

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