Results 91 to 100 of about 1,064,069 (358)

AFM study of oxygen reduction products on HOPG in the LiPF6–DMSO electrolyte [PDF]

, 2013
Ex situ atomic force microscopy (AFM) has been used to study the morphology of oxygen reduction products in the LiPF6–dimethyl sulfoxide (DMSO) electrolyte, i.e. Li2O2 on a highly oriented pyrolytic graphite (HOPG) surface.
Calvo, Ernesto Julio, Clarenc, Romain, Herrera, Santiago Esteban, Tesio, Alvaro Yamil   +3 more
core   +1 more source

Gold‐Catalyzed Synthesis of Fluorenones via Intramolecular C–H Arylation

Advanced Synthesis &Catalysis, EarlyView.
Starting from 2‐diazobenzophenones, a straightforward synthesis of valuable fluorenones via a gold‐catalyzed one‐pot oxidation, C–H activation, and cyclization is described. The addition of ascorbic acid, the correct selection of the counteranion of the 2‐diazobenzophenones, and the use of terpyridine as an auxiliary ligand are crucial for the reaction
Osvaldo Felipe López‐Saladino, Diego Dusso, Howard Díaz‐Salazar, Brayan Alberto Martínez‐González, Miguel Angel Rosas‐Ortega, Susana Porcel   +5 more
wiley   +1 more source

Viabilidade de sementes de Macrotyloma axillare cv. Guatá submetidas a escarificação química

Boletim de Indústria Animal, 2012
O artigo não apresenta resumo em português.
Suleize Rocha Terra, Thiago Perez Granato, Waldssimiler Teixeira de Mattos, Luciana Gerdes, Alessandra Aparecida Giacomini   +4 more
openaire   +6 more sources

Chemoenzymatic Synthesis of Triazololactams Structurally Related to Pancratistatin [PDF]

, 2017
Four tricyclic lactams that structurally resemble alkaloids with the pancratistatin skeleton were synthetized from bromobenzene by a chemoenzymatic strategy.
Bastida, Bellomo, Bellomo, Bellomo, Bellomo, Bellomo, Brovetto, Brovetto, Cao, Carless, Carrau, Carrera, Carrera, Chrétien, Desjardins, Ghavre, Gibson, Gibson, Goietsenoven, Griffen, Griffin, He, Hudlicky, Hudlicky, Hudlicky, Hudlicky, Kolb, Kornienko, la Sovera, la Sovera, la Sovera, Labora, Lamoral-Theys, Ma, Ma, Ma, McNulty, Plietker, Rinner, Staudinger, Thevenet, Tian, Vila, Vshyvenko, Vshyvenko, Vshyvenko, Vshyvenko, Wu, Yadav   +48 more
core   +1 more source

Electrochemical Chemo‐ and Regioselective Heterofunctionalization of Tropones via C(sp2)H Derivatization

Advanced Synthesis &Catalysis, EarlyView.
Simple and selective. The electrochemical heterofunctionalization of activated tropones is achieved using readily available inorganic salts. A theoretical model, based on cyclic voltammetry and quantum chemistry calculations, predicts both reactivity trends and site selectivity.
Mauro Garbini, Samuele Moncullo, Sofia Kiriakidi, Manuela Melucci, Sara Bellini, Chiara Zanardi, Carlos Silva López, Giulio Bertuzzi, Marco Bandini   +8 more
wiley   +1 more source

Densities and phase equilibria of hydrogen, propane and vegetable oil mixtures. Experimental data and thermodynamic modeling [PDF]

, 2017
Heterogeneous catalytic gas-liquid reactions are intensified when carried out in the homogenous fluid phase by means of a supercritical co-solvent.
Esteban A. Brignole, Michelsen M. L., Natalia S. Cotabarren, Pablo E. Hegel, Prausnitz J. M., Selva Pereda, Wandeler R.   +6 more
core   +1 more source

Microwave‐Assisted One‐Pot Synthesis of Alkyl Levulinates From Post‐Harvest Vegetable Waste

Advanced Sustainable Systems, EarlyView.
Vegetable waste is valorized through Soxhlet extraction using H₂O₂ and heteropolyacid (HPA), followed by material characterization (XRD, FTIR, TGA, DSC). A microwave‐assisted reaction at 170 °C for 30 min with HPA and alcohol yields bio‐based esters.
Ángel G. Sathicq, Luis A. Gallego‐Villada, Edwin Alarcón, Andrés Felipe Monroy, José J. Martínez, Gustavo P. Romanelli   +5 more
wiley   +1 more source

Composição físico-química de amostra de méis de Apis mellifera L. do Estado de Tocantins, Brasil

Boletim de Indústria Animal, 2013
A presente pesquisa, desenvolvida com amostras de méis de Apis mellifera coletadas diretamente dos produtores de diversos municípios do Estado de Tocantins, Brasil, teve o objetivo de verificar, com base em características físico-químicas, como se agrupam as amostras de méis.
Luís Carlos Marchini, Geni da Silva Sodré, Augusta Carolina de Camargo Carmello Moreti, Ivani Pozar Otsuk   +3 more
openaire   +4 more sources

Enhanced Oxygen Evolution Reaction Performance of Niobium–Cobalt Oxide Catalysts in Acidic and Alkaline Media

Advanced Sustainable Systems, EarlyView.
The electronic modulation of Nb‐doped Co3O4 catalyst showcases enhanced activity and extended stability for OER in both alkaline (1M KOH) and acidic (0.5M H2SO4) electrolytes. The higher activity emanated from the synergistic effect between the Nb5+ dopant and Co3O4.
Kassa Belay Ibrahim, G.P. Darshan, Gabriele Benetti, Pankaj Kumar, Enrique Rodríguez‐Castellón, Tofik Ahmed Shifa, Elisa Moretti, Alberto Vomiero   +7 more
wiley   +1 more source

Alterações físico-químicas, celulares e produtivas de quartos mamários de vacas com mastite subclínica causada por Staphylococcus aureus quando submetidos a antibioticoterapia

Boletim de Indústria Animal, 2013
A antibioticoterapia durante a lactação como método de controle da mastite bovina pode ajudar produtores e veterinários no combate à doença e reduzir a duração das infecções intramamárias. Os quartos mamários de animais com mastite subclínica causada por Staphylococcus aureus foram tratados e as características do leite antes e após o ...
Luiz Francisco Zafalon, Antônio Nader Filho, José Victor de Oliveira, Flávio Dutra de Resende, Cristina Corsi Dib   +4 more
openaire   +4 more sources