Results 131 to 140 of about 37,547 (266)

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

Compliance Testing of Hemp (Cannabis sativa L.) Cultivars for Total Delta-9 THC and Total CBD Using Gas Chromatography with Flame Ionization Detection. [PDF]

Plants (Basel)
Arsenault TL, Prapayotin-Riveros K, Ammirata MA, White JC, Dimkpa CO.   +4 more
europepmc   +1 more source

Stabilization of Cu Species in UiO‐66 Metal–Organic Framework for CO2‐to‐Methanol: Insights From Operando X‐ray and Electron Microscopy Studies

Small, EarlyView.
This study reveals how a zirconium‐based metal–organic framework (UiO‐66) stabilizes copper species during CO2 hydrogenation to methanol. Operando X‐ray spectroscopy, electron microscopy, and theory show that zinc promotes highly dispersed copper and suppresses particle growth, while the framework dynamically responds to reaction intermediates.
Anna Liutkova, Fabio André Peixoto Esteves, Marianela López Romero, Margareth S. Baidun, Anastasia Molokova, Davide Salusso, Kirill A. Lomachenko, Andrea Testino, Alexander A. Kolganov, Evgeny A. Pidko, Emiliya Poghosyan, Marco Ranocchiari   +11 more
wiley   +1 more source

Polarity‐Engineered, Tribo‐Positive Imidazolium‐Mediated Crosslinked 6FDA‐Durene Films for Triboelectric Nanogenerator

Small, EarlyView.
Imidazolium‐mediated crosslinking transforms 6FDA‐durene PI from tribo‐negative to tribo‐positive by modulating the surface electronic structure and charge‐transfer behavior. DFT calculations confirm the experimentally observed polarity transition.
Sorour Faramarzi, Shabnam Yavari, Ukiliaiym Ospanova, Adilet Shynggys, Irshad Kammakakam, Haifeng Ji, Jiayi Wang, Zhen Wen, Gulnur Kalimuldina   +8 more
wiley   +1 more source

Head Space Single Drop Micro Extraction Gas Chromatography Flame Ionization Detection (HS-SDME-GC-FID) Method for the Analysis of Common Fatty Acids. [PDF]

Turk J Pharm Sci
Ekici A, Ulutaş OK, Berkan A.
europepmc   +1 more source

Molecularly Mediated Assembly of Metal Nanoparticles With Multifunctional Interfaces for Selective Detection of Small Gas Molecules

Small, EarlyView.
This work demonstrates a conceptual framework of three types of cooperative interaction pathways in molecularly assembled nanoparticle chemiresistors. Their relative contributions depend on nanoparticle composition, linker chemistry, film architecture, and analyte identity, modulating the effective tunneling barrier (Φ), interparticle spacing (d), and ...
Han‐Wen Cheng, Jin Luo, Xiajing Shi, Guojun Shang, Dong Dinh, Lidia Gebre, Zeqi Li, Seyed Danial Mousavi, Zakiya Skeete, Ke Pei, Wenbin You, Susan Lu, Tony T. Yuan, Chuan‐Jian Zhong   +13 more
wiley   +1 more source

Chemical Recycling as a Tool for Enabling a Second Life for Polyesters

SusMat, EarlyView.
This review presents the elucidation of the life cycle of main polyesters, detailing end‐of‐life methods, with focus of solvolysis technologies, then an analysis of LCA and TEA on literature data, an original data analytic, and, finally, a current industrial mapping of the main processes with a critical perspective on the plastic life‐cycle ecosystem ...
Nícolas Soares Urruth, Cristian de Oliveira Romera, Caio Gomide Otoni, Bruno Francisco Oechsler, Pedro Henrique Hermes de Araújo, Claudia Sayer   +5 more
wiley   +1 more source

VOSCs Analysis through TD-GC-MS/FID/PFPD: Tools to Enhance Detectivity and Selectivity in Real Samples

Chemical Engineering Transactions
The present paper intends to discuss recent developments in detection and quantification of odorous compounds in real industrial gaseous emissions. In this work, the chemical characterization of industrial odours is carried out using an Agilent gas ...
Nicola Massimi, Elisa Polvara, Marzio Invernizzi, Selena Sironi   +3 more
doaj