| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZsFDuKxG/AGR5A |
| Repository | sid.inpe.br/marciana/2004/01.08.11.45 (restricted access) |
| Last Update | 2009:03.11.18.28.55 (UTC) administrator |
| Metadata Repository | sid.inpe.br/marciana/2004/01.08.11.45.38 |
| Metadata Last Update | 2018:06.05.01.20.40 (UTC) administrator |
| Secondary Key | INPE-10375-PRE/5875 |
| ISSN | 0926-860X |
| Citation Key | SoaresNetoCoboCruz:2003:TePrEv |
| Title | Textural properties evolution of Ir and Ru supported on alumina catalysts during hydrazine decomposition in satellite thruster  |
| Year | 2003 |
| Month | Sep. |
| Access Date | 2024, Apr. 28 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 414 KiB |
| 2. Context | |
| Author | 1 Soares Neto, Turíbio Gomes 2 Cobo, A. J. G. 3 Cruzc, Gilberto M. da |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JJAA |
| Group | 1 LCP-INPE-MCT-BR |
| Affiliation | 1 Laboratório Associado de Combustão e Propulsão, Instituto Nacional de Pesquisas Espaciais 2 Faculdade de Engenharia Química, Universidade Estadual de Campinas, C. P. 6066, 13083-970, Campinas, SP, Brazil 3 Faculdade de Engenharia Química de Lorena, C. P. 116, 12600-000, Lorena, SP, Brazil |
| Journal | Applied Catalysis A: General |
| Volume | 250 |
| Number | 2 |
| Pages | 331-340 |
| History (UTC) | 2008-06-10 22:25:39 :: administrator -> marciana :: 2009-03-11 18:28:55 :: marciana -> administrator :: 2018-06-05 01:20:40 :: administrator -> marciana :: 2003 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | cobustão preparação de catalisadores decomposição da hidrazina irídio alumina catálise Iridium catalyst Ruthenium catalyst Iridium-ruthenium bimetallic catalyst |
| Abstract | Ir/Al2O3, Ru/Al2O3, and Ir-Ru/Al2O3 catalysts with total metallic contents of 30% in mass were prepared by an incipient wetness method. The characterization of these materials, before and after their use for hydrazine decomposition in a satellite thruster, was performed by measurement techniques of specific surface area, volume and pores size distribution, H2 chemisorption, TEM and basic chemical analysis. An average decrease of 11% in the BET surface area was observed, independent of the catalyst composition. The total specific pore volume remained unchanged because the volume reduction in the size range diameters between 1.0 and 10 nm was compensated by the increase in the diameters size range between 10 and 100 nm. A reduction of the H2 quantity adsorbed on the Ir/Al2O3 catalyst can be explained by the metal loss through erosion as well as by its partial occlusion within the pores of the alumina support. On the other hand, catalysts containing Ru showed an increase of H2 chemisorbed amount, attributed to a more complete reduction of this material after hydrazine decomposition, in spite of the erosion and occlusion losses. Such observations were confirmed by TEM, which showed a great stability of the distributions of the metallic particle sizes in all catalysts. |
| Area | COMB |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Textural properties evolution... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | textural.pdf |
| User Group | administrator marciana |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ET38CH |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |