4:47, Mon Jul 22

Open Access/APCs

vol. 25, No. 12, 2014, p. 2133-2474


Catalysis in Brazil

The research on catalysis in Brazil began last century, in the mid 60's, with Professor Ciola, the first one to set up a laboratory of catalytic processes in the Petroquímica União, a São Paulo petrochemical industry and at the Institute of Chemistry of the University of São Paulo. In the late 60's, the Catalytic Process Laboratory in the Petrobras Research Center - Cenpes was built under the leadership of Dr. L. Nogueira, answering to the demands of the company.
In the 70's, the first university labs appeared, which in the beginning of the 21st century founded one of the strongest and most representative societies in Brazil and in South America: the Brazilian Catalysis Society, bringing together researchers from different fields, such as chemistry, physics, chemical engineering and material sciences in Brazil.

(Read more at Editorial)

Special Issue Catalysis

Editorial J. Braz. Chem. Soc. 2014, 25(12), 2133

Catalysis in Brazil

Martin Schmal

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Letter J. Braz. Chem. Soc. 2014, 25(12), 2137-2139

Proposal of a Standard Unit for Turnover Frequencies: Hz

José R. Gregório; Bauer C. Ferrera; Rodrigo dos S. Fuscaldo; Roberto F. de Souza

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Published online: September 19, 2014

Account J. Braz. Chem. Soc. 2014, 25(12), 2140-2150

Ionic Liquids and Catalysis

Michèle O. de Souza

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Though electrochemists first used ionic liquids, the catalysis area pioneered their applications.


Published online: November 21, 2014

Communication J. Braz. Chem. Soc. 2014, 25(12), 2151-2156

Friedel-Crafts Alkylation of Toluene as a Parallel Reaction in Propylene Dimerization Catalyzed by Nickel β-Diimine Complex/EASC in Homogeneous Phase

Isabel Vicente; Katia Bernardo-Gusmão; Michèle O. de Souza; Roberto F. de Souza

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Two competing reactions depending on the concentration of co-catalyst and Ni complex: propylene oligomerization or Friedel-Crafts alkylation with toluene (solvent).


Published online: September 26, 2014

Reviews J. Braz. Chem. Soc. 2014, 25(12), 2157-2163

Homogeneous Catalytic Dehydrogenation of Formic Acid: Progress Towards a Hydrogen-Based Economy

Gábor Laurenczy; Paul J. Dyson

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Hydrogen/energy storage in the formic acid/carbon dioxide system.


Published online: October 3, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2164-2185

Metallocene Supported on Inorganic Solid Supports: an Unfinished History

Aline C. dos Ouros; Michèle O. de Souza; Heloise O. Pastore

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Nanocomposite production requires the fillers randomly dispersed on polymer matrix. In situ procedure combined with an ideal choice of catalyst/support promote the production of a material with improved properties for many applications.


Published online: October 24, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2186-2214

Recent Progress in the Use of Pd-Catalyzed C-C Cross-Coupling Reactions in the Synthesis of Pharmaceutical Compounds

André F. P. Biajoli; Cristiane S. Schwalm; Jones Limberger; Thiago S. Claudino; Adriano L. Monteiro

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This review is intended to give a picture of the applications of Pd-catalyzed C-C cross-coupling reactions for the synthesis of drug components or drug candidates, regardless of the scale, from 2011 through to the end of July, 2014.


Published online: November 4, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2215-2228

Catalysis for the Valorization of Low-Value C-Streams

Michele Aresta; Angela Dibenedetto

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The need for a better carbon management is pushing away from the linear-carbon economy (LCE) towards carbon recycling (CR). This paper discusses the valorization of selected low-value carbon streams such as low-alkanes, CO2, residual biomass and process glycerol.


Published online: November 4, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2229-2243

Catalytic Transformations of Ethanol for Biorefineries

Jean M. R. Gallo; José M. C. Bueno; Ulf Schuchardt

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In this critical review, it is discussed the development of heterogeneous catalysts for the conversion of ethanol into commodity chemicals


Published online: November 21, 2014

Articles J. Braz. Chem. Soc. 2014, 25(12), 2244-2250

Ethylene Polymerization by 2-Methyl-8-(benzimidazol)quinolyliron(II) Pre-Catalyst: a DFT Understanding its Chain Propagation and Transfer

Wenhong Yang; Toshiaki Taniike; Minoru Terano; Yan Chen; Wen-Hua Sun

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The 2-methyl-8-(benzimidazol)quinolyliron(II) pre-catalyst is investigated by the density functional theory (DFT) calculations to illustrate the mechanism of ethylene polymerization along with understanding the intermediates in the processes of chain propagation and transfer.


Published online: July 29, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2251-2257

A New Approach to CO2 Capture and Conversion Using Imidazolium Based-Ionic Liquids as Sorbent and Catalyst

Aline S. Aquino; Franciele L. Bernard; Michele O. Vieira; Jéssica V. Borges; Marisol F. Rojas; Felipe Dalla Vecchia; Rosane A. Ligabue; Marcus Seferin; Sonia Menezes; Sandra Einloft

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A system constituted by a fluorinated ionic liquid plus ZnBr2 is presented as a new approach to perform effective CO2 capture and conversion.


Published online: July 29, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2258-2265

New Isopropylmaltol - Ti Synthesis and its Use as a Catalyst for Olefin Polymerization

Grasiela Gheno; Nara R. S. Basso; Marco A. Ceschi; Jessie S. Costa; Paolo R. Livotto; Griselda B. Galland

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Novel synthetic route of isopropylmaltol from furfural in five steps and complexation with TiCl4 giving a new post-metallocene catalyst. The novel complex was active in homogeneous ethylene polymerization, giving high density polyethylene with high molecular weight.


Published online: August 15, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2266-2271

Unsaturated Renewable Oil Transformation into Novel Biofuel Compositions via an Olefin Metathesis-Transesterification-Hydrogenation Sequence

Priscilla S. Lima; Leonildo A. Ferreira; Luiza H. Freitas; Martin W. Rheinheimer; Yuri C. A. Sokolovicz; Henri S. Schrekker

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An unsaturated vegetable oil was used as model substrate for the preparation of biofuels via an olefin metathesis-transesterification-hydrogenation sequence.


Published online: September 9, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2272-2279

Synthesis of n-Butylamine from Butyronitrile on Ni/SiO2: Effect of Solvent

Darío J. Segobia; Andrés F. Trasarti; Carlos R. Apesteguía

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Ni/SiO2 activity and selectivity for the synthesis of n-butylamine from butyronitrile hydrogenation greatly depends on the solvent nature. In non-polar solvents, the solvent-catalyst interaction strength determines the selectivity to n-butylamine: the stronger the solvent-catalyst interaction the higher the n-buylamine yield.


Published online: September 16, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2280-2294

Solid, Solution and Gas Phase Interactions of an Imidazolium-Based Task-Specific Ionic Liquid Derived from Natural Kojic Acid

Brenno A. D. Neto; Alberto A. R. Mota; Claudia C. Gatto; Giovanna Machado; Maíra Fasciotti; Heibbe C. B. de Oliveira; Davi A. C. Ferreira; Otavio Bianchi; Marcos N. Eberlin

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The supramolecular interactions and organizational features of a task-specific ionic liquid derived from the natural kojic acid have been investigated by a set of techniques formed by single-crystal X-ray diffraction, nuclear magnetic resonance (NMR) spectroscopy, UV-Vis spectrophotometry, conductivity measurements, small angle X-ray scattering (SAXS), electrospray (tandem) mass spectrometry (ESI-MS(/MS)), and theoretical calculations.


Published online: September 23, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2295-2303

Synthesis and Characterization of a Cationic Cyclopentadienyl Nickel(II) Complex of Bis(mesityl-imino)acenaphthene and its Evaluation as a New Catalyst Precursor for Ethylene Polymerization

Cláudia A. Figueira; Alejandro F. G. Ribeiro; Clara S. B. Gomes; Anabela C. Fernandes; Linda H. Doerrer; Pedro T. Gomes

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The complex [Ni(η5-C5H5)(mesityl-BIAN)]PF6 catalyses the polymerization of ethylene when activated by methylaluminoxane (MAO).


Published online: September 26, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2304-2313

Cadmium and Tin Magnetic Nanocatalysts Useful for Biodiesel Production

Melquizedeque B. Alves; Fernando C. M. Medeiros; Marcelo H. Sousa; Joel C. Rubim; Paulo A. Z. Suarez

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Magnetic mixed iron/tin oxide nanoparticles were used as catalysts in relevant reactions for biodiesel production technologies.


Published online: October 10, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2314-2321

Iridium Oxidation States in Catalytic Hydrogenation Intermediates

Janeth Navarro; Marta Martín; Eduardo Sola

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The dihydride [IrH2(NCMe)3(PiPr3)]BF4 provides access to potential intermediates in hydrogenations catalyzed by Crabtree-type homogeneous catalysts, thus allowing experimental assessment of likely hydrogenation sequences.


Published online: October 10, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2322-2328

A DFT Study of the Conversion of CO2 in Dimethylcarbonate Catalyzed by Sn(IV) Alkoxides

Renata C. de Souto; Nilton Rosenbach Jr; Claudio J. A. Mota

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Calculations on the catalytic activity of different R2Sn(OCH3)3 species on the reaction between CO2 and methanol to afford dimethylcarbonate and water.


Published online: October 10, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2329-2338

Anionic Iron(III) Porphyrin Immobilized on/into Exfoliated Macroporous Layered Double Hydroxides as Catalyst for Oxidation Reactions

Shirley Nakagaki; Kelly A. D. F. Castro; Geani M. Ucoski; Matilte Halma; Vanessa Prévot; Claude Forano; Fernando Wypych

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This work reports the preparation of the solid catalyst based immobilization of ironporphyrin on macroporous layered double hydroxides (LDHs) prepared by the co-precipitation method, which involved the use of polystyrene as template, oxides reconstruction, and exfoliation. Application of the solid as catalysts in (Z)-cyclooctene and cyclohexane oxidation will help to assess their catalytic activity.


Published online: October 14, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2339-2349

Cobalt Catalyst Characterization for Methane Decomposition and Carbon Nanotube Growth

Hugo A. Oliveira; Dante F. Franceschini; Fabio B. Passos

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In this paper, carbon nanotubes were produced by methane vapor deposition on Co/γ-Al2O3 catalyst. The properties of the catalyst and reaction conditions influenced carbon nanotube selectivity.


Published online: October 17, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2350-2355

Can Green Dimethyl Carbonate Synthesis be More Effective? A Catalyst Recycling Study Benefiting from Experimental Kinetics and DFT Modeling

Stéphane Chambrey; Mahboubeh Poor Kalhor; Henry Chermette; Danielle Ballivet-Tkatchenko

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DFT calculations coupled with experimental kinetics reveal recycling active dibutyltin(IV) species correlates with the stability of polynuclear species.


Published online: October 17, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2356-2363

Nickel / Doped Ceria Solid Oxide Fuel Cell Anodes for Dry Reforming of Methane

Renata O. da Fonseca; Andressa A. A. da Silva; Matheus R. M. Signorelli; Raimundo C. Rabelo-Neto; Fábio B. Noronha; Rita C. C. Simões; Lisiane V. Mattos

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Ni/CePr anode exhibited the lowest carbon formation on CO2 reforming of methane due to its higher oxygen mobility.


Published online: October 21, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2364-2369

Comparing Thermal-Cracking and Catalytic Hydrocracking in the Presence of Rh and Ru Catalysts to Produce Liquid Hydrocarbons from Vegetable Oils

Juliana P. Rodrigues; Marcos J. Jacinto; Henrique L. Oliveira; Yuri H. O. Falcão; Paulo A. Z. Suarez; Liane M. Rossi

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The catalysed hydrocracking of soybean, castor and palm tree oils by Rh and Ru nanoparticles leads to hydrocarbons suitable for use as "renewable or green diesel".


Published online: October 28, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2370-2377

An Electrostatically-Anchored Rhodium(I) Catalyst for the Hydroformylation and Tandem Hydroformylation/Acetalization of Biorenewable Allyl Benzenes

Glenda A. Carvalho; Elena V. Gusevskaya; Eduardo N. dos Santos

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A recyclable rhodium catalyst anchored in a commercial anion exchange resin was prepared straightforwardly from readily available precursors. The catalyst was used for the hydroformylation or the tandem sequence hydroformylation/acetalyzation of eugenol and estragole.


Published online: November 4, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2378-2384

Synthesis of 5-Hydroxymethylfurfural from Dehydration of Fructose And Glucose Using Ionic Liquids

Fernanda C. de Melo; Roberto F. de Souza; Paulo L. A. Coutinho; Michèle O. de Souza

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Synthesis of HMF from glucose or fructose using ionic liquid.


Published online: November 4, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2385-2391

Aqueous Micelles as Catalytic Nanoreactors for Dephosphorylation Reactions

Eduardo H. Wanderlind; Elisa S. Orth; Michelle Medeiros; Deise M. P. O. Santos; Eduard Westphal; Hugo Gallardo; Haidi D. Fiedler; Faruk Nome

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A novel hydrophobic nucleophile bearing two imidazole groups enhances the cleavage of a model phosphate triester up to 1700-fold, and the reactions are similarly promoted by both cationic and anionic aqueous micelles.


Published online: November 4, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2392-2398

Catalytic Oxidation of Aqueous Sulfide Promoted by Oxygen Functionalities on the Surface of Activated Carbon Briquettes Produced from Viticulture Wastes

Ana C. Deiana; Marianela Gimenez; Maria F. Sardella; Karim Sapag; Ana L. S. Masseo; Ana P. C. Teixeira; Maria H. Araujo; Rochel M. Lago

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In this work, activated carbon in form of briquettes, produced from wastes of wine industry, were used in the catalytic oxidation of aqueous sulfide contaminant. The preparation and characterization of the catalyst and its efficiency in the oxidation of sulfide are discussed.


Published online: November 11, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2399-2408

Activation of Methane on NiO Nanoparticles with Different Morphologies

Ruth L. Martins; Martin Schmal

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Scanning electron microscopy images of NiO prepared by different routes resulting in distinct morphologies: nanoflowers for NiO prepared with ethylene glycol, less compacted nanoflowers for NiO prepared by hydrothermal route, and bidimensional rods for NiO prepared using nickel dimethylglyoxyne as precursor.


Published online: November 11, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2409-2416

SnSO4 as Catalyst for Simultaneous Transesterification and Esterification of Acid Soybean Oil

Camila O. Pereira; Márcio F. Portilho; Cristiane A. Henriques; Fatima M. Z. Zotin

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Biodiesel production from simultaneous transesterification and esterification reactions of non-refined feedstocks, using SnSO4 as catalyst.


Published online: November 11, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2417-2424

Photosensitised Degradation of Organic Dyes by Visible Light Using Riboflavin Adsorbed on the Surface of TiO2 Nanotubes

Claudio W. Backes; Francine R. Scheffer; Marcelo B. Pereira; Sérgio R. Teixeira; Daniel E. Weibel

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TiO2 nanotube arrays impregnated with riboflavin (vitamin B2) and irradiated with only visible light (λ > 400 nm) produce O2 gas in situ allowing efficient degradation of several dyes.


Published online: November 11, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2425-2432

Electronic vs. Steric Hindrance Effects in Amine Ligands to Ru-Based Initiators for ROMP

Tiago B. Silva; Ricardo S. Camargo; Benedito S. Lima-Neto

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[RuCl2(PPh3)2(amine)x]-type complexes, with NH2Ph (1; x = 2), NH2Bz (2; x = 2) and NHBuPh (3; x = 1), in the presence of ethyldiazoacetate (EDA), were investigated for ring-opening metathesis polymerization (ROMP) of cyclic olefins. The reactivity of the complexes according to the electronic density and steric hindrance of the amines as ancillary ligands was discussed. In the series, complex 3 is the most active at 25 °C for 5 min, probably because there is more steric hindrance due to the number and the bulkiness of the amine, even with a lower σ-donor character.


Published online: November 11, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2433-2443

Flash Pyrolysis of Oleic Acid as a Model Compound Adsorbed on Supported Nickel Catalysts for Biofuel Production

Roger Fréty; Marilia R. Santos; Renan F. Sales; Antonio O. S. Silva; Celmy B. M. Barbosa; Jose G. A. Pacheco

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Catalytic pyrolysis of oleic acid decreased oxygenated and increased hydrocarbon products formation. NiO/alumina produced more aromatics than NiO/silica.


Published online: November 14, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2444-2454

Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials

Saulo T. F. Grecco; Ernesto A. Urquieta-González; Patrício Reyes; Marcelo Oportus; Maria do Carmo Rangel

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The crystallinity of the zeolite and the ordering of the mesoporous phase can be adjusted by the time of seed aging.


Published online: November 18, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2455-2465

Ni/La2O3-SiO2 Catalysts Applied to Glycerol Steam Reforming Reaction: Effect of the Preparation Method and Reaction Temperature

Vivian V. Thyssen; Elisabete M. Assaf

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Catalytic test of 10Ni30LaSi (I-sim): This catalyst showed the best results for glycerol steam reforming under the test conditions, proving stable and active throughout the reaction time.


Published online: November 21, 2014

J. Braz. Chem. Soc. 2014, 25(12), 2466-2474

Synthesis, Characterization and Ethylene Oligomerization Studies of Chromium Complexes Bearing Imino-Furfural Ligands

Ana H. D. P. S. Ulbrich; Jorge L. S. Milani; Paolo R. Livotto; Jean-François Carpentier; Osvaldo L. Casagrande Jr.

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The chromium(III) complexes bearing imino-furfural ligands were synthesized and tested in ethylene oligomerization reactions producing oligomers in the range C4-C12+ with good selectivity for α-olefins.


Published online: November 21, 2014

Online version ISSN 1678-4790 Printed version ISSN 0103-5053
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