Search Results - "Passos, Raimundo"

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    Electrochemical behavior of polyaniline: A study by electrochemical impedance spectroscopy (EIS) in low-frequency by Martins, João C., de M. Neto, José C., Passos, Raimundo R., Pocrifka, Leandro A.

    Published in Solid state ionics (01-03-2020)
    “…Conducting polymers are increasingly attracting the interest of many researchers in different areas due to their good conductivity, stability and easy…”
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    Influence of operational parameters on the performance of PEMFCs with serpentine flow field channels having different (rectangular and trapezoidal) cross-section shape by Freire, Luciana S., Antolini, Ermete, Linardi, Marcelo, Santiago, Elisabete I., Passos, Raimundo R.

    Published in International journal of hydrogen energy (04-08-2014)
    “…The effect of operational parameters on the performance of PEMFCs by using serpentine flow field channels with different (rectangular and trapezoidal)…”
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    Ethylene glycol oxidation on carbon supported binary PtM (M = Rh, Pd an Ni) electrocatalysts in alkaline media by Marinho, Vera L., Antolini, Ermete, Giz, M. Janete, Camara, Giuseppe A., Pocrifka, Leandro A., Passos, Raimundo R.

    “…In this work we prepared binary Pt-based electrocatalysts supported on carbon with a 80:20 (Pt:M) atomic ratio (where M = Rh, Pd and Ni) and tested their…”
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    Ethanol electro-oxidation on partially alloyed Pt-Sn-Rh/C catalysts by de Souza, Elson A., Giz, M.Janete, Camara, Giuseppe A., Antolini, Ermete, Passos, Raimundo R.

    Published in Electrochimica acta (20-11-2014)
    “…Ternary Pt-Sn-Rh/C catalysts of Pt:Sn:Rh=1:0.8:0.2 and 1:1:0.33 atomic ratios were synthesized using the formic acid method and their electrochemical…”
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    Waste from an Amazon Mining Company Applied as a Catalyst in Photocatalysis Reactions for Environmental Remediation by Lira, Wenderson A. S., Silva, Emilly C., Pocrifka, Leandro A., Passos, Raimundo R., Oliveira, Amanda C., Rabelo, Adriano C.

    Published in Water, air, and soil pollution (01-07-2022)
    “…The environmental problem caused by mining companies is known and has been studied by several authors. In this work, a sustainable solution was sought for…”
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    Modulating the electrochemical capacitance of NiFe2O4 by an external magnetic field for energy storage application by Silva, Emilly C., Zambiazi, Priscilla J., Ferraz, Thiago V.B., Bonacin, Juliano A., Passos, Raimundo R., Pocrifka, Leandro A.

    “…[Display omitted] •Nickel ferrite nanoparticles prepared by proteic sol–gel method as a energy storage eletrodes.•Capacitance enhancement by magnetic…”
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    Analysis of the selectivity of PtRh/C and PtRhSn/C to the formation of CO2 during ethanol electrooxidation by Silva-Junior, Luiz C., Maia, Gilberto, Passos, Raimundo R., de Souza, Elson A., Camara, Giuseppe A., Giz, M. Janete

    Published in Electrochimica acta (01-12-2013)
    “…•Ethanol oxidation on PtRh produces proportionally more CO2 on Rh richer surfaces.•However, ethanol oxidation currents decrease upon these conditions.•This…”
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    Morphology and performance of CoOOH films synthesized via electrochemical oxidation: substrate effects by Aguilera, Lianet, Aguiar, Priscila Carvalho Machado, Leyet, Yurimiler, Padrón-Hernández, Eduardo, Passos, Raimundo Ribeiro, Pocrifka, Leandro Aparecido

    Published in Journal of solid state electrochemistry (01-12-2018)
    “…In the present work, CoOOH films are synthesized from the electrochemical oxidation of α-Co(OH) 2 as precursor. The substrate influences on the material…”
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    Synthesis of ZnO Nanoparticles by the Sol-Gel Protein Route: A Viable and Efficient Method for Photocatalytic Degradation of Methylene Blue and Ibuprofen by da Silva, Emilly, de Moraes, Maria, Brito, Walter, Passos, Raimundo, Brambilla, Rodrigo, da Costa, Luiz, Pocrifka, Leandro

    Published in Journal of the Brazilian Chemical Society (01-08-2020)
    “…The photocatalytic degradation of methylene blue dye and ibuprofen drug was studied in the presence of zinc oxide, synthetized by the protein sol-gel route…”
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    Near-infrared leaf reflectance modeling of Annona emarginata seedlings for early detection of variations in nitrogen concentration by Gomes, Rafaela Lanças, Sousa, Marília Caixeta, Campos, Felipe Girotto, Boaro, Carmen Sílvia Fernandes, de Souza Passos, José Raimundo, Ferreira, Gisela

    Published in Journal of forestry research (01-02-2023)
    “…Nitrogen (N) monitoring is essential in nurseries to ensure the production of high-quality seedlings. Near-infrared spectroscopy (NIRS) is an instantaneous,…”
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    Electro-oxidation of Glycerol on Carbon Supported Pt75CoxNi25-x (x = 0, 0.9, 12.5, 24.1 and 25) Catalysts in an Alkaline Medium by de Araujo, Vanessa M. F., Antolini, Ermete, Pocrifka, Leandro A., Passos, Raimundo R.

    Published in Electrocatalysis (01-11-2018)
    “…Binary and ternary Pt 75 Co x Ni 25- x /C ( x  = 0, 0.9, 12.5, 24.1, and 25) electrocatalysts were prepared by a polyol method, and their activity for carbon…”
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    Studies of the performance of PEM fuel cell cathodes with the catalyst layer directly applied on Nafion membranes by Passos, Raimundo R., Paganin, Valdecir A., Ticianelli, Edson A.

    Published in Electrochimica acta (28-07-2006)
    “…The performance of a proton exchange membrane fuel cell (PEMFC) with gas diffusion cathodes having the catalyst layer applied directly onto Nafion membranes is…”
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    Polyandry contributes to Gonipterus platensis (Coleoptera: Curculionidae) rearing by Ribeiro, Murilo Fonseca, Cavallini, Gabriela, Solce, Gabriel Negri, Favoreto, Ana Laura, Passos, José Raimundo De Souza, Hurley, Brett, Wilcken, Carlos Frederico

    Published in PeerJ (San Francisco, CA) (22-08-2024)
    “…Marelli, 1926 (Coleoptera: Curculionidae) is one of the main defoliating beetles in plantations. Biological control with egg parasitoids is one of the main…”
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    Synthesis and characterization of a nanocomposite NiO/SiO2 from a sustainable source of SiO2 by Rebelo, Querem H. F., Ferreira, Carlos S., Santos, Pamyla L., Bonacin, Juliano A., Passos, Raimundo R., Pocrifka, Leandro A., Paula, Marcos M. S.

    Published in Particulate science and technology (17-11-2019)
    “…The search for raw materials obtained from renewable sources is necessary for the sustainable development in the production of engineering materials. In this…”
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    Biodegradation of eucalyptus urograndis wood by fungi by Negrão, Djanira Rodrigues, Silva Júnior, Tadeu Antônio Fernandes da, Passos, José Raimundo de Souza, Sansígolo, Cláudio Angeli, Minhoni, Marli Teixeira de Almeida, Furtado, Edson Luiz

    “…We focused in selecting four fungi, naturally living in Eucalyptus sp. fields, for application in accelerating stump decay. The wood-rot fungi Pycnoporus…”
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