| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m16b.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZ3r59YDb/KbJia |
| Repositório | sid.inpe.br/iris@1917/2006/02.16.12.02 (acesso restrito) |
| Última Atualização | 2006:02.16.12.02.00 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/iris@1917/2006/02.16.12.02.52 |
| Última Atualização dos Metadados | 2018:06.05.03.43.40 (UTC) administrator |
| Chave Secundária | INPE--PRE/ |
| ISSN | 0169-4332 |
| Chave de Citação | SoaresNetoCoboCruz:2005:EvMoPr |
| Título | Evolution of morphologic properties on the preparation of IrAl2O3 catalysts with high metallic contents  |
| Ano | 2005 |
| Data de Acesso | 04 maio 2024 |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 168 KiB |
| 2. Contextualização | |
| Autor | 1 Soares Neto, Turíbio Gomes. 2 Cobo, Antonio José Gomes. 3 Cruz, Gilberto Marques. |
| Grupo | 1 LCP-INPE-MCT-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Universidade Estadual de Campinas (UNICAMP) 3 Faculdade de Engenharia Quý´mica de Lorena (FAENQUIL) |
| Revista | Applied Surface Science |
| Volume | 240 |
| Páginas | 355-365 |
| Histórico (UTC) | 2006-02-16 12:08:20 :: ignes -> administrator :: 2012-11-24 01:38:59 :: administrator -> ignes :: 2005 2013-02-20 14:54:14 :: ignes -> administrator :: 2005 2018-06-05 03:43:40 :: administrator -> marciana :: 2005 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Palavras-Chave | Alumina Catalysts characterization Catalysts preparation Hydrazine decomposition Iridium catalysts Spacecraft propulsion |
| Resumo | Abstract - Ir/Al2O3 catalysts with high metallic contents are applied on satellite thruster to decompose hydrazine. The present work has as principal aim the study of the morphologic evolution of Ir/Al2O3 catalysts with metallic contents from 12 to 30 wt.%. The catalysts were prepared through consecutive impregnations from the H2IrCl6 precursor, using three different types of aluminas. The specific surface area, volume and distribution of pore size, specific metallic area and metallic particles average diameter, as well as the mechanical resistance were determined. Results show that the Ir addition leads to a decrease of the specific surface area and the pores volumes, while increases the mechanical resistance. Values for average diameter of metallic particles are comprised between 1.4 and 2.4 nm when the metallic content increases from 12 to 30 wt.%. Catalysts containing 30 wt.% of Ir presents specific metallic areas around 30 m2/g, although pores volumes and distributions of pore size were considerably different for the three supports. Their metallic particles dispersion and size values are very close to those of a commercial catalyst Shell 405, even though the preparation methods were different. These results show that there is a strong interaction between the alumina and the iridium precursor. |
| Área | COMB |
| Arranjo | urlib.net > Fonds > Produção anterior à 2021 > LABCP > Evolution of morphologic... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| Idioma | en |
| Arquivo Alvo | evolution.pdf |
| Grupo de Usuários | administrator ignes |
| Visibilidade | shown |
| Política de Arquivamento | denypublisher denyfinaldraft24 |
| Permissão de Leitura | deny from all and allow from 150.163 |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ET38CH |
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX. |
| Acervo Hospedeiro | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |