Výsledky vyhledávání - "Adriano C. Rabelo"

One-pot sequential functionalizations of meso-tetrathienylporphyrins via Heck–Mizoroki cross-coupling reactions

Autor: Ygor W. Vieira, Timothy J. Brocksom, Edson R. Leite, Maria Carolina Donatoni, Adriano C. Rabelo, Kleber T. de Oliveira

Publikováno v: Tetrahedron Letters. 57:3016-3020

Synthesis and sequential functionalizations of a new meso -tetraiodo(thien-2-yl)porphyrin and its Ni(II) derivative are described. The reactions for the preparation of these new porphyrins were optimized. Subsequently, four successive one-pot Heck–

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d48a434bc4d52b2388a61d03cd9edc4
https://doi.org/10.1016/j.tetlet.2016.05.106

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The role of defects on the structural and magnetic properties of Nb2O5

Autor: Ernesto C. Pereira, Ariano De Giovanni Rodrigues, Marcio P.F. de Godoy, Adilson J.A. de Oliveira, L. K. S. Herval, Adriano C. Rabelo, Driele von Dreifus, Yara Galvão Gobato

Publikováno v: Journal of Alloys and Compounds. 653:358-362

Defects play a fundamental issue on physical properties of wide bandgap materials. We present here the effect of preparation and annealing conditions on the properties of Nb 2 O 5 synthesized by Pechini method. Structural characterization, Raman spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b6a433c8d502b7cb2085c81d862901c
https://doi.org/10.1016/j.jallcom.2015.09.019

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Optical Properties of Semiconductor Nanocrystals into the Glass and Colloidal Environments for New Technological Applications

Autor: Anielle Christine Almeida Silva, Sidney A. Lourenço, Noelio Oliveira Danta, Adriano C. Rabelo, R.S. Silva, Marco A. T. da Silva, Gabriel Dornela Alves da Rocha

Publikováno v: Recent Advances in Complex Functional Materials ISBN: 9783319538976

Semiconductor quantum dots (QDs) became in the last decade an important class of materials by present continuous tunability of electronic and optical properties by changing size and shape [1–4]. These new physical properties presented by QDs have d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6fa937c082c95f8f5bfd05df1670a55
https://doi.org/10.1007/978-3-319-53898-3_6

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Revisiting SrTiO3as a photoanode for water splitting: development of thin films with enhanced charge separation under standard solar irradiation

Autor: Adriano C. Rabelo, Cleocir José Dalmaschio, Edson R. Leite, Edney Geraldo da Silveira Firmiano, Antonio N. Pinheiro

Publikováno v: RSC Adv.. 4:2029-2036

Strontium titanate (SrTiO3) is an n-type semiconductor with high chemical and photochemical stability. This wide band gap oxide has a band gap energy of about 3.2 eV as well as a favorable energy for photocatalysis. In this study, we demonstrate an a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::adc2968977ac28bcba9a32664a961b99
https://doi.org/10.1039/c3ra45066j

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Graphene oxide as a highly selective substrate to synthesize a layered MoS2 hybrid electrocatalyst

Autor: Cleocir José Dalmaschio, Edson R. Leite, Adriano C. Rabelo, Marcos A. L. Cordeiro, Ernesto C. Pereira, Edney Geraldo da Silveira Firmiano, Antonio N. Pinheiro

Publikováno v: Chemical communications (Cambridge, England). 48(62)

We merged the microwave synthesis approach with an extension of the nonhydrolytic sol-gel method to induce highly selective crystallization of MoS(2) layers over graphene sheets. This hybrid material showed superior electrocatalytic activity in hydro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7425ee0ef81500eda3543c1a07b48c4f
https://pubmed.ncbi.nlm.nih.gov/22735236

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Structural refinement, growth process, photoluminescence and photocatalytic properties of ('BA IND. 1-x'PR IND. 2x/3')W'O IND. 4' crystals synthesized by the coprecipitation method

Autor: M. Siu Li, N. C. Batista, M. R. M. C. Santos, José Arana Varela, L. S. Cavalcante, I. C. Nogueira, Elson Longo, Marcio Aurélio Pinheiro Almeida, F. M. C. Batista, Adriano C. Rabelo

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Barium praseodymium tungstate (Ba1-xPr2x/3)WO4 crystals with (x = 0, 0.01, and 0.02) were prepared by the coprecipitation method. These crystals were structurally characterized by X-ray diffraction (XRD), Rietveld refinements, Fourier-transform Raman

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b253b888e618cb0e8b7f32ee4c4554a

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Supercapacitor Electrodes Obtained by Directly Bonding 2D MoS2on Reduced Graphene Oxide

Autor: Edson Robeto Leite, Antonio N. Pinheiro, Ernesto C. Pereira, Cleocir José Dalmaschio, Adriano C. Rabelo, Edney Geraldo da Silveira Firmiano, Wido H. Schreiner

Publikováno v: Advanced Energy Materials. 4:1301380

Layered molybdenum disulfi de (MoS 2 ) is deposited by microwave heating on a reduced graphene oxide (RGO). Three concentrations of MoS 2 are loaded on RGO, and the structure and morphology are characterized. The fi rst layers of MoS 2 are detected a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3d88a8929e32aefee5961f784771f9e
https://doi.org/10.1002/aenm.201301380

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