Results 91 to 100 of about 393,215 (252)

Determination of polymer content in energetic materials by FT-IR [PDF]

open access: yesJournal of Aerospace Technology and Management, 2009
A new methodology was developed to characterize and to quantify the polymer content in PBX (HMX/Viton) by Fourier Transform Infrared Spectroscopy (FT-IR), using the Termogravimetric analysis (TG) as reference techniques for the quantitative method.
Elizabeth C. Mattos   +3 more
doaj  

Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy

open access: yes, 2017
Infrared spectroscopy is a powerful tool for basic and applied science. The molecular spectral fingerprints in the 3 um to 20 um region provide a means to uniquely identify molecular structure for fundamental spectroscopy, atmospheric chemistry, trace ...
Chiles, Jeff   +11 more
core   +2 more sources

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons   +11 more
wiley   +1 more source

Ion‐Selective Microporous Membranes via One‐Step Copolymerization Enable High‐Performance Redox Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A scalable one‐step copolymerization strategy is developed to produce low‐cost microporous ion exchange membranes that boost both the efficiency and lifespan of flow batteries. When combined with organic electrolytes in aqueous systems, these membranes enable safe and cheap flow battery energy storage, supporting the widespread integration of renewable
Jiaye Liu   +7 more
wiley   +1 more source

Evaluation of hydrolytic degradation of bionanocomposites through fourier transform infrared spectroscopy

open access: yesPolímeros
Studies about in vitro biodegradation of polymers have grown considerably due to the wide application of biodegradable polymers in biomedical areas.
Raquel do Nascimento Silva   +5 more
doaj   +1 more source

Cancer Discrimination Using Fourier Transform Near-Infrared Spectroscopy with Chemometric Models

open access: yesJournal of Chemistry, 2015
Near-infrared (NIR) spectroscopy technique offers many potential advantages as tool for biomedical analysis since it enables the subtle biochemical signatures related to pathology to be detected and extracted.
Hui Chen, Zan Lin, Chao Tan
doaj   +1 more source

Olive Leaf Extract as a Corrosion Inhibitor of Carbon Steel in CO2-Saturated Chloride–Carbonate Solution

open access: yesInternational Journal of Electrochemical Science, 2016
In the present study corrosion inhibition of carbon steel in CO2-saturated chloride–carbonate solution by the olive leaf extract has been researched.
Gordana Pustaj   +2 more
doaj   +1 more source

Mechanochemistry‐Assisted Solvent‐Free Supramolecular Engineering for Atomic‐Layered Carbon Nitride Nanosheets with Enhanced Photocatalytic Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao   +7 more
wiley   +1 more source

Characterization of structural properties of fungal-bacterial biofilms by Fourier Transform Infrared Spectroscopy

open access: yesCeylon Journal of Science, 2018
Investigating the structural properties of biofilms is important as they undergo profound changes in their genetic and cellular make up once planktonic cells are converted to biofilm communities.
I. D. Singhalage   +3 more
doaj   +1 more source

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

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