Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Antoninho Valentini"'
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 95, Iss 2 (2023)
Abstract Selective photocatalytic oxidation of benzyl alcohol to benzaldehyde and reduction of nitrobenzene to aniline reactions are investigated by using SiO2@TiO2 spheres produced in a simple route using chitosan as a template. The spheres are pred
Externí odkaz:
https://doaj.org/article/bc78b4bf24e6441a9b147ede8a06ea2c
Publikováno v:
Química Nova, Vol 39, Iss 6, Pp 691-696 (2016)
Polymeric precursor method and wet impregnation route were applied to synthesize copper and aluminium-based catalysts in order to obtain a material with interesting properties in catalytic reactions. The changes in the structural, morphological and t
Externí odkaz:
https://doaj.org/article/b20b2a7501bf4b30b7f3764f2dcf677e
Publikováno v:
Química Nova, Vol 38, Iss 10, Pp 1265-1272 (2015)
Solid samples containing a Ca2Fe2O5 phase were synthesized using the Pechini method. The samples were characterized using X-ray diffraction, thermogravimetric analysis, differential thermal analysis, X-ray fluorescence, nitrogen adsorption/desorption
Externí odkaz:
https://doaj.org/article/078d5794096a4eaa9c7db419bb433a6b
Publikováno v:
Química Nova, Vol 34, Iss 5, Pp 792-797 (2011)
Materials containing aluminum and iron oxide were synthesized through the preparation of hybrid spheres and tested in the dehydrogenation of ethylbenzene in the presence of CO2. The catalytic results suggest that the high initial ethylbenzene convers
Externí odkaz:
https://doaj.org/article/a6a518ad7a554d1ba1ed85addfa280e7
Autor:
Antoninho Valentini, Luiz Fernando Dias Probst, Neftalí L. V. Carreño, Edson R. Leite, Fenelon M. Pontes, Elson Longo, Wido H. Schreiner, Paulo N. Lisboa-Filho
Publikováno v:
Química Nova, Vol 26, Iss 5, Pp 648-654 (2003)
The carbon dioxide reforming of methane was carried out over nickel catalysts supported on the gamma-Al2O3/CeO2 system prepared by wet impregnation. With the increase of the CeO2 weight in the catalyst, a higher stability was observed in the catalyti
Externí odkaz:
https://doaj.org/article/1a7a786b7ec64ea396d174b69a3e73ac
Autor:
Maria do Carmo Rangel, Antoninho Valentini, Adriana Santana de Oliveira, Jorge Maurício David, Jaildes Marques Britto, Suzana Marques Domingues, Patrício Reyes
Publikováno v:
Química Nova, Vol 26, Iss 3, Pp 305-308 (2003)
Externí odkaz:
https://doaj.org/article/9a7d7e393f2647c4bdccd065c42885eb
Autor:
Neftalí L. V. Carreño, Edson R. Leite, Luís P. S. Santos, Paulo N. Lisboa-Filho, Elson Longo, Geórgia C. L. Araújo, Andersson Barison, Antônio G. Ferreira, Antoninho Valentini, Luiz Fernando D. Probst
Publikováno v:
Química Nova, Vol 25, Iss 6a, Pp 935-942 (2002)
Externí odkaz:
https://doaj.org/article/42cc1fd2055a48ebb614191d20159e7d
Autor:
Antoninho Valentini, Mauro C. M. Laranjeira, Simone Fiori, Valfredo T. de Fávere, Marilene Klug
Publikováno v:
Química Nova, Vol 23, Iss 1, Pp 12-15 (2000)
Capsules were prepared from chitosan (QTS)-poly(vinyl alcohol) (PVA) blend by saline coacervation and then by formalization. A adsorbent based on chitosan, insoluble on acid solution, was obtained. The morphology, average diameters of QTS/PVA capsule
Externí odkaz:
https://doaj.org/article/21d9637be7614bf092ae4a83473c8500
Autor:
R. C. R. Santos, José Barbosa Silva, Gabriel A.S. Costa, S. Costa, Mauricélio Bezerra da Silva, Antoninho Valentini, Valder N. Freire, F. A. M. Sales, Ewerton W. S. Caetano
Publikováno v:
Journal of Raman Spectroscopy. 52:1294-1307
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::039d09066598158a9d2391d99ba0ed88
https://doi.org/10.1002/jrs.6134
https://doi.org/10.1002/jrs.6134
Autor:
José Barbosa Silva, Juan Pablo Echeverry, Regina Claudia Rodrigues dos Santos, Valdir Ferreira de Paula, Maria Izabel Florindo Guedes, Bruno Poti e Silva, Antoninho Valentini, Ewerton Wagner Santos Caetano, Valder Nogueira Freire
Publikováno v:
Journal of Solid State Chemistry. 321:123900
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c22cb8c1e921819f990b020b054780
https://doi.org/10.1016/j.jssc.2023.123900
https://doi.org/10.1016/j.jssc.2023.123900