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Influência da nióbia no óxido de alumínio eletrofundido para aplicações abrasivas
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2021-07-29)
Abrasives are materials that have as main characteristics their cutting and
grinding power. In its most common crystalline form, aluminum oxide, due to its
high melting point, high hardness and mechanical resistance, ...
New materials based on modified synthetic Nb2O5 as photocatalyst for oxidation of organic contaminants
(Elsevier B.V., 2008-12-15)
Novel materials based on niobia (Nb2O5) destined to oxidize an organic compound in aqueous medium via heterogeneous photocatalysis after chemical modification were synthesized. Niobia was modified by the doping with ...
New materials based on modified synthetic Nb2O5 as photocatalyst for oxidation of organic contaminants
(Elsevier B.V., 2008-12-15)
Novel materials based on niobia (Nb2O5) destined to oxidize an organic compound in aqueous medium via heterogeneous photocatalysis after chemical modification were synthesized. Niobia was modified by the doping with ...
Novos materiais a base de nióbia para utilização na degradação de compostos orgânicos via fotocatáliseNew materials based on nióbia for use in degradation of organic compounds via photocatalysis
(UNIVERSIDADE FEDERAL DE LAVRASDQI - Programa de Pós-graduaçãoUFLABRASIL, 2014)
Estudio de catalizadores de platino soportado en óxidos de cerio modificados con niobio aplicados a la reacción de desplazamiento de gas de agua
(2014-09-02)
Se sinterizaron óxidos de cerio-niobio por dos métodos: coprecipitación de Ce-Nb e impregnación de ceria con niobia. La evaluación de la capacidad redox de los soportes sugirió que la niobia en contacto íntimo con la ceria ...
Effects of Cu over Pd based catalysts supported on silica or niobia
(Brazilian Society of Chemical Engineering, 2000)
Propriedades químicas das fases T e B da nióbia: uma investigação in silico
(Universidade Federal de Minas GeraisUFMG, 2018-07-27)
Niobium pentoxide (Nb2O5), also known as niobia, exists in many polymorphic forms depending on the temperature, pressure, starting materials and techniques. This work reports the computational simulation using the Functional ...
The molecular basis for the behaviour of niobia species in oxidation reaction probed by theoretical calculations and experimental techniques
(Taylor & Francis Ltd, 2009-01)
This paper describes the preparation and use of a new class of materials based on synthetic niobia as catalysts in the oxidation of organic compounds in aqueous medium. The chemical reactions were carried out in the presence ...
Catalytic behavior of niobia species on oxidation reactions: Insights from experimental and theoretical models
(Springer, 2008-09)
This paper describes the preparation and use of a new class of material based on synthetic Niobia as catalysts in oxidizing reactions of organic compounds in aqueous medium. The reaction chemicals were carried out in ...
Catalisadores de platina suportada em nióbia para oxidação seletiva de CO - SELOX
(Universidade Federal do Rio de JaneiroBrasilInstituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de EngenhariaPrograma de Pós-Graduação em Engenharia QuímicaUFRJ, 2019)