Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Estevam Vitório Spinacé"'
Autor:
Egberto Gomes Franco, Almir Oliveira-Neto, Estevam Vitório Spinacé, Marcelo Linardi, Nathalie Martz, Marian Mazurek, Hartmut Fuess
Publikováno v:
Materials Research, Vol 8, Iss 2, Pp 117-120 (2005)
The purpose of this investigation was to compare catalysts produced by the Bönnemann - colloidal method (PtRu (B1) and PtRu (B2)), and those produced by the spontaneous deposition method (PtRu (SD)). The catalysts produced by both methods had good e
Externí odkaz:
https://doaj.org/article/33db1a2a3d9c4c34a300a065663904af
Autor:
Arthur Pignataro Machado, Saulo Amaral Carminati, Eliane Ribeiro Januário, Patricia Silvaino Ferreira, Jorge Moreira Vaz, Estevam Vitorio Spinacé
Publikováno v:
Methane, Vol 2, Iss 1, Pp 44-55 (2023)
Here, Pd nanoparticles supported on ZnO were prepared by the alcohol-reduction and the borohydride-reduction methods, and their efficiency towards the photocatalytic conversion of methane under mild conditions were evaluated. The resulting Pd/ZnO pho
Externí odkaz:
https://doaj.org/article/d8352db9d31c44468093af03a7717e2c
Autor:
Eliane Ribeiro Januario, Patrícia Ferreira Silvaino, Arthur Pignataro Machado, Jorge Moreira Vaz, Estevam Vitorio Spinace
Publikováno v:
Frontiers in Chemistry, Vol 9 (2021)
The processes currently used in the chemical industry for methane conversion into fuels and chemicals operate under extreme conditions like high temperatures and pressures. In this sense, the search for methane conversion under mild conditions remain
Externí odkaz:
https://doaj.org/article/62420c676634403dbfe3365ebb320a64
Autor:
Carla Moreira Santos Queiroz, Arthur Pignataro Machado, Ana Rita Noborikawa Paiva, Rodolfo Molina Antoniassi, Jorge Moreira Vaz, Estevam Vitorio Spinacé
Publikováno v:
Materials for Renewable and Sustainable Energy, Vol 8, Iss 3, Pp 1-8 (2019)
Abstract Pt/CeO2 catalysts were prepared with 0.5 and 1 wt% of Pt loadings by an alcohol-reduction process using a solution of ethylene glycol and water as a reducing agent and solvent. The obtained catalysts were characterized by energy-dispersive X
Externí odkaz:
https://doaj.org/article/c2af4bce251c48a2847b4cda1d1a3a53
Autor:
Catarine Santos Lopes Alencar, Ana Rita Noborikawa Paiva, Elizabeth S. Ribeiro Somessari, Leonardo Gondim de Andrade e Silva, Jorge Moreira Vaz, Estevam Vitorio Spinacé
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 9, Iss 1A (2021)
The major part of the world production of hydrogen (H2) is originated from a combination of methane steam reforming and water-gas shift reaction resulting in an H2-rich mixture known as reformate gas, which contains about 1% vol (10,000 ppm) of carbo
Externí odkaz:
https://doaj.org/article/1b240739918648b9a97da615f6485528
Autor:
Catarine Santos Lopes Alencar, Ana Rita Noborikawa Paiva, Julio Cesar Martins da Silva, Jorge Moreira Vaz, Estevam Vitorio Spinacé
Publikováno v:
Materials Research, Vol 23, Iss 5 (2020)
Abstract Au/TiO2 (1wt% Au), Cu/TiO2 (1wt% Cu) and AuCu/TiO2 (1wt% AuCu) catalysts with different Au:Cu mass ratios were prepared in one-step synthesis using sodium borohydride as reducing agent. The resulting catalysts were characterized by X-ray dif
Externí odkaz:
https://doaj.org/article/aa3361583e464164b7a57c67b9058ac0
Publikováno v:
Materials Research, Vol 21, Iss 2 (2017)
Au nanoparticles supported on TiO2 were prepared by a liquid-phase reduction method using HAuCl4.3H2O as the Au precursor, TiO2 as the support, a solution of ethylene glycol/water as solvent and reducing agent and sodium citrate as reducing agent and
Externí odkaz:
https://doaj.org/article/e79019361d9b4fdda3681652f1fb4f42
Autor:
Dionísio Furtunato da Silva, Almir Oliveira Neto, Eddy Segura Pino, Michele Brandalise, Marcelo Linardi, Estevam Vitorio Spinacé
Publikováno v:
Materials Research, Vol 10, Iss 4, Pp 367-370 (2007)
PtRu/C electrocatalysts (carbon-supported PtRu nanoparticles) were prepared submitting water/ethylene glycol mixtures containing Pt(IV) and Ru(III) ions and the carbon support to electron beam irradiation. The electrocatalysts were characterized by e
Externí odkaz:
https://doaj.org/article/67923bc3190b4e1c99bf81c2db33fced
Autor:
Marcelo Marques Tusi, Michele Brandalise, Olandir Vercino Correa, Almir Oliveira Neto, Marcelo Linardi, Estevam Vitorio Spinacé
Publikováno v:
Materials Research, Vol 10, Iss 2, Pp 171-175 (2007)
PtRu/Carbon hybrids were prepared by hydrothermal carbonization process using glucose or starch as carbon sources and reducing agents and platinum and ruthenium salts as catalysts of carbonization process and metals source. The obtained PtRu/Carbon m
Externí odkaz:
https://doaj.org/article/aac0b40dbf5a42eba38b5bad8add0bf8