Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Vilmaria A. Ribeiro"'
Autor:
Isabel C. de Freitas, Vilmaria A. Ribeiro, Estevam V. Spinacé, Almir Oliveira Neto, Júlio César M. Silva
Publikováno v:
Materials Chemistry and Physics. 200:354-360
Pt nanoparticles supported on carbon (Pt/C) and nitrogen-doped carbon (Pt/NC) were prepared by an alcohol-reduction process and used for ammonia electro-oxidation in alkaline media. Nitrogen-doped carbons were prepared by thermal treatment of urea an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd0249d1e9afbb65805036354a47818
https://doi.org/10.1016/j.matchemphys.2017.07.088
https://doi.org/10.1016/j.matchemphys.2017.07.088
Autor:
Vilmaria A. Ribeiro, Júlio César M. Silva, Isabel C. de Freitas, Almir Oliveira Neto, Estevam V. Spinacé
Publikováno v:
Ionics. 24:1111-1119
Palladium nanoparticles supported on carbon Vulcan XC72 (Pd/C) and on phosphorus-doped carbon (Pd/P-C) were prepared by an alcohol reduction process. X-ray diffractograms of Pd/C and Pd/P-C showed the typical face-centered cubic (fcc) structure of Pd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ce58fcbfa40e717021c4cad80d86d2e
https://doi.org/10.1007/s11581-017-2257-9
https://doi.org/10.1007/s11581-017-2257-9
Autor:
Vilmaria A. Ribeiro, Estevam V. Spinacé, Monique C.L. Santos, Rita Maria Dutra, Almir Oliveira Neto
Publikováno v:
International Journal of Electrochemical Science. :3549-3560
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb97265f9c3034b0cedb446f4c3cc98d
https://doi.org/10.20964/2017.05.26
https://doi.org/10.20964/2017.05.26
Publikováno v:
ECS Transactions. 58:141-145
PtSn/C electrocatalysts were prepared by an alcohol-reduction process using Pt(C5H7O2)2 and SnCl4•5H2O as metal precursors, a mixture of ethylene glycol:water as both a solvent and reducing agent and Carbon Vulcan XC72 as support. The electrocataly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a978b0abdf336afc7f8c16297efd797
https://doi.org/10.1149/05825.0141ecst
https://doi.org/10.1149/05825.0141ecst
Autor:
Vilmaria Aparecida Ribeiro
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
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional do IPEN
Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron:IPEN
Foram preparados eletrocatalisadores Pt-Sn/C a partir da deposição de Pt sobre Sn/C por diferentes metodologias. Os suportes Sn/C foram preparados pela redução com boroidreto de sódio (BH) e pelo método da redução por álcool (MRA). A deposi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f07c2e6e98f574508d602f6fc4a96612
https://doi.org/10.11606/t.85.2015.tde-21102015-154446
https://doi.org/10.11606/t.85.2015.tde-21102015-154446
Publikováno v:
ECS Transactions. 43:339-344
PtSn/C electrocatalyst was prepared in two steps: i) initially SnCl2.2H2O was reduced on the carbon support using sodium borohydride as reducing agent. At the second step the obtained Sn/C was used as support and H2PtCl6.6H2O was reduced by an alcoho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2f74f3d581f922ac3c3bcfa1d0f4b81
https://doi.org/10.1149/1.4704976
https://doi.org/10.1149/1.4704976
Autor:
Vilmaria A. Ribeiro, Estevam V. Spinacé, Almir Oliveira Neto, Juan Carlo Villalba, Marcelo M. Tusi, Nataly Soares de Oliveira Polanco, Fauze Jacó Anaissi, Olandir Vercino Correa, Michele Brandalise
Publikováno v:
ECS Transactions. 43:305-312
Ni/Carbon hybrids were prepared by hydrothermal carbonization at 200 ºC for 48 h using glucose as carbon source, NiCl2.6H2O as oxidizing agent and catalyst of the carbonization process. The materials were prepared in the absence and in the presence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a18a3ddfe96bf7e43986b77c45a28d9e
https://doi.org/10.1149/1.4704971
https://doi.org/10.1149/1.4704971
Publikováno v:
Nanomaterials and Energy. 1:77-80
Pt-based electrocatalysts were prepared by spontaneous deposition (galvanic displacement) of Pt on carbon-supported Ni, Sn, and NiSn electrocatalysts. The spontaneous deposition of Pt was performed by stirring of an aqueous solution of H2PtCl6·6H2O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60946cecb6a2a12bb105dc27c54d4fbb
https://doi.org/10.1680/nme.11.00018
https://doi.org/10.1680/nme.11.00018
Autor:
Almir Oliveira Neto, Olandir Vercino Correa, Marcelo M. Tusi, Nataly Soares de Oliveira Polanco, Antônio Carlos da Silva, Vilmaria A. Ribeiro, Michele Brandalise, Estevam V. Spinacé
Publikováno v:
Ionics. 18:215-222
PtRu/carbon hybrid materials were prepared by hydrothermal carbonization using starch as carbon source and reducing agent and H2PtCl6.6H2O and RuCl3.xH2O as metal sources of the carbonization process. The materials were prepared in the following cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57909f60dffde8b2872c1322d9a4794
https://doi.org/10.1007/s11581-011-0596-5
https://doi.org/10.1007/s11581-011-0596-5
Autor:
Almir Oliveira Neto, Olandir Vercino Correa, Estevam V. Spinacé, Vilmaria A. Ribeiro, Marcelo Linardi
Publikováno v:
Applied Catalysis A: General. 372:162-166
PtRuNi/C electrocatalysts with 20 wt% metals loading and Pt:Ru:Ni atomic ratio of 50:40:10 were prepared by an alcohol-reduction process. The electrocatalysts were characterized using energy-dispersive X-ray analysis, X-ray diffraction analysis and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4eefe68c9c1c9df9d8d87f0e245ec20
https://doi.org/10.1016/j.apcata.2009.10.028
https://doi.org/10.1016/j.apcata.2009.10.028