Results 81 to 90 of about 936,734 (312)

Inelastic Scattering of Formaldehyde on Au(111) surface

, 2023
Inelastic scattering between gas molecules and surfaces is a fundamental process that has been investigated extensively. During this process, the energy exchange between the gas and the surface changes the internal and translational degrees of freedom of
Rupayan, Biswas, Upakarasamy, Lourderaj
core   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

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

Advanced 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, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Modification of silver nanoparticles (AgNPs) with tollens reagent for selective colorimetric detection of formaldehyde

Results in Chemistry
This study uses modified silver nanoparticles (AgNPs) and Tollens' reagent to explore a novel colorimetric sensor for formaldehyde detection. AgNPs was synthesized using sodium citrate and tannic acid. Characterization of AgNPs using UV–Vis spectroscopy,
Aminah Umar, Rafifah Hana Raihana Syam, Windri Handayani, Nadeem Qaiser, Dewangga Oky Bagus Apriandanu, Yoki Yulizar   +5 more
doaj   +1 more source

Real Time NMR Analysis of Melamine Formaldehyde Resin Reactions

, 2012
This investigation was carried out on behalf of the Momentive Specialty Chemicals Pty Ltd, Mt Maunganui. The aim of the investigation was to develop a method to analyse the formation of melamine formaldehyde resins via an in situ real time NMR experiment
Wang, Yuan
core  

Mapping isoprene emissions over North America using formaldehyde column observations from space

, 2003
We present a methodology for deriving emissions of volatile organic compounds (VOC) using space-based column observations of formaldehyde (HCHO) and apply it to data from the Global Ozone Monitoring Experiment (GOME) satellite instrument over North ...
Chance, Kelly, Palmer, P. I., Kelly Chance, Jacob, Daniel J., Kurosu, T. P., Fiore, AM, Jacob, D. J., Palmer, PI, Chance, K., Daniel J. Jacob, Kurosu, Thomas P., Fiore, Arlene M., Randall V. Martin, Martin, Randall V., Arlene M. Fiore, Martin, R. V., Palmer, Paul I., Fiore, A. M., Martin, RV, Kurosu, TP, Paul I. Palmer, Thomas P. Kurosu, Jacob, DJ   +22 more
core   +1 more source

Volatile aldehydes in libraries and archives [PDF]

, 2010
Volatile aldehydes are produced during degradation of paper-based materials. This may result in their accumulation in archival and library repositories. However, no systematic study has been performed so far.
Kolar, J., de Bruin, G., Irena Kralj Cigić, Gerrit de Bruin, Fenech, Ann, Levart, A., Fenech, A., Kralj Cigić, I., Levart, Alenka, Jana Kolar, Ntanos, Konstantinos, May Cassar, Cigic, Irena Kralj, Gibson, L.T., Ntanos, K., Kolar, Jana, Matija Strlič, Cassar, M., Konstantinos Ntanos, Gibson, Lorraine T., Lorraine T. Gibson, de Bruin, Gerrit, Cassar, May, Ann Fenech, Alenka Levart, Strlič, M.   +25 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Development of a formaldehyde analysis method for use with portable spectrometers [PDF]

, 2020
Formaldehyde testing in poor communities can be limited by the capital costs of laboratory grade instruments. Not having access to these instruments could result in the water supply not being tested, which can lead to health issues.The development of a ...
NC DOCKS at Western Carolina University, Lillie, Alexander Michael   +1 more
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Formaldehyde Sensing by Co3O4 Hollow Spheres at Room Temperature

, 2020
: Formaldehyde is a ubiquitous and high toxicity gas. It is an essential task to efficient detect owing to their toxicity and diffusion. In this work, we studied on the detection of trace amount of formaldehyde based on hollow Co3O4 nanostructure.
Yang, Cao, Jingyu, Qian, Yongguang, Tu, Yong, Yang   +3 more
core   +1 more source