Improving the Electrocatalytic Activities and CO Tolerance of Pt NPs by Incorporating TiO2 Nanocubes onto Carbon Supports

Autor: Júlio César M. Silva, Estevam V. Spinacé, Eduardo C. M. Barbosa, Rodolfo M. Antoniassi, Luanna S. Parreira, R.A. Isidoro, Pedro H. C. Camargo, Jhon Quiroz

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

Designing efficient anode CO-tolerant electrocatalysts is critical in low-temperature fuel cell catalysts fueled either by H-2/CO or alcohol. We demonstrate that the incorporation of TiO2 nanocubes (TiO2NCs) on Carbon Vulcan supports, followed by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a485ed11fba39799b350631b810413f
http://hdl.handle.net/10138/329662

Performance enhancement of direct ethanol fuel cell using Nafion composites with high volume fraction of titania

Autor: R.A. Isidoro, Elisabete I. Santiago, Fabio C. Fonseca, Bruno R. Matos

Publikováno v: Journal of Power Sources. 268:706-711

The present study reports on the performance enhancement of direct ethanol fuel cell (DEFC) at 130 °C with Nafion-titania composite electrolytes prepared by sol–gel technique and containing high volume fractions of the ceramic phase. It is found t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3667e078448d5c513a802fe93d54cbe0
https://doi.org/10.1016/j.jpowsour.2014.06.097

Influence of sol–gel media on the properties of Nafion–SiO2 hybrid electrolytes for high performance proton exchange membrane fuel cells operating at high temperature and low humidity

Autor: Marcelo Linardi, Elisabete I. Santiago, Mauro André Dresch, José Fernando Queirura Rey, Fabio C. Fonseca, R.A. Isidoro

Publikováno v: Electrochimica Acta. 94:353-359

a b s t r a c t The effects of alcohol used as solvent during the sol-gel synthesis of Nafion-SiO2 hybrid electrolytes have been evaluated. The alcohol controls the distribution of silica particles in the phase separated structure of Nafion and both

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53fd3aff244be79f574ade065042406d
https://doi.org/10.1016/j.electacta.2012.09.036

Desenvolvimento de eletrocatalisadores de PdM (M= Ni, Cu, Ag) para reação de redução de oxigênio em meio básico na ausência e presença de álcool

Autor: R.A. Isidoro

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional do IPEN
Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron:IPEN

Eletrocatalisadores baseados em Pd/C, PdCu/C, PdNi/C e PdAg/C foram produzidos pelo método de micro-ondas para serem utilizados como cátodo na célula a combustível alcalina na ausência e presença de álcool. Este método se mostrou bastante efe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f68b291e89ff81ace28817c67dd3fc94

Nafion–TiO2 hybrid electrolytes for stable operation of PEM fuel cells at high temperature

Autor: Mauro André Dresch, Fabio C. Fonseca, R.A. Isidoro, Elisabete I. Santiago, Marcelo Linardi, Bruno R. Matos

Publikováno v: Electrochimica Acta. 54:4111-4117

The fabrication and characterization of Nafion–TiO2 hybrid electrolytes for proton exchange membrane fuel cell (PEMFC) operating at high temperature are reported. A low temperature sol–gel synthesis, based on the formation of a sol from Ti-peroxy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66a0378a3a3f14741220a5c1bb40b402
https://doi.org/10.1016/j.electacta.2009.02.040