Results 101 to 110 of about 44,186 (297)

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

A NOVEL ACRYLONITRILE DERIVATIVE HAVING PHOTOVOLTAIC PERFORMANCE

Journal of the Turkish Chemical Society, Section A: Chemistry, 2016
A new acrylonitrile derivative 3 (BPCPFA) which offer potential application as organic solar cell material was synthesized with three steps. The structures of the molecules synthesized in these steps were characterized using various spectral analyses ...
Cigdem Yorur-Goreci, Mehmet Kazici, Sinem Bozar, Zulal Demir, Abdullah Toraman, Fatih Ongul, Abid Ali, Serap Gunes   +7 more
doaj   +1 more source

Observations of nitrogen isotope fractionation in deeply embedded protostars [PDF]

, 2014
(Abridged) The terrestrial planets, comets, and meteorites are significantly enriched in 15N compared to the Sun and Jupiter. While the solar and jovian nitrogen isotope ratio is believed to represent the composition of the protosolar nebula, a still ...
Bisschop, S. E., Bizzarro, M., Jorgensen, J. K., Wampfler, S. F.   +3 more
core   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Nitrogen isotopic ratios in Barnard 1: a consistent study of the N2H+, NH3, CN, HCN and HNC isotopologues

, 2013
The 15N isotopologue abundance ratio measured today in different bodies of the solar system is thought to be connected to 15N-fractionation effects that would have occured in the protosolar nebula.
Biver, N., Bockelee--Morvan, D., Cernicharo, J., Daniel, F., Gerin, M., Lique, F., Lis, D. C., Marcelino, N., Roueff, E., Teyssier, D.   +9 more
core   +3 more sources

Interstellar chemistry of nitrogen hydrides in dark clouds [PDF]

, 2013
The aim of the present work is to perform a comprehensive analysis of the interstellar chemistry of nitrogen, focussing on the gas-phase formation of the smallest polyatomic species and in particular nitrogen hydrides.
Faure, Alexandre, Forêts, Guillaume Pineau des, Gal, Romane Le, Hily-Blant, Pierre, Maret, Sébastien, Rist, Claire   +5 more
core   +3 more sources

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

Advanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo, Yong Choi, Gajendra S. Shekhawat, Minjoong Shin, Kunmo Koo, Xiaobing Hu, Jiheon Kim, Wonjoon Choi, Xinqi Chen, Vinayak P. Dravid   +9 more
wiley   +1 more source

Tunable full-color dual-state (solution and solid) emission of push–pull molecules containing the 1-pyrindane moiety

Beilstein Journal of Organic Chemistry
A facile method for the synthesis of arylidene derivatives of pyrindane – (E)-7-arylmethylene-2-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3,4-dicarbonitriles – was developed.
Anastasia I. Ershova, Sergey V. Fedoseev, Konstantin V. Lipin, Mikhail Yu. Ievlev, Oleg E. Nasakin, Oleg V. Ershov   +5 more
doaj   +1 more source

Preparation of perfluorinated 1,2,4-oxadiazoles [PDF]

, 1982
Fluorinated alkyl or alkylether 1,2,4 oxadiazole compounds are prepared by cyclizing the corresponding alkyl or alkylether imidoyl amidoximes in vacuo or in an inert atmosphere at a temperature within the range of 40 C to 100 C.
Ito, T. I., Kratzer, R. H., Paciorek, K. J. L., Rosser, R. W.   +3 more
core   +1 more source