| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZsFDuKxG/AGTqh |
| Repository | sid.inpe.br/marciana/2004/01.08.13.36 |
| Last Update | 2009:03.11.18.18.12 (UTC) administrator |
| Metadata Repository | sid.inpe.br/marciana/2004/01.08.13.36.23 |
| Metadata Last Update | 2018:06.05.01.20.40 (UTC) administrator |
| Secondary Key | INPE-10376-PRE/5876 |
| ISSN | 0100-4042 |
| Citation Key | VieiraPhamKellLedo:2003:NoMaBa |
| Title | Novos materiais à base de nanofibras de carbono como suporte de catalisador na decomposição da hidrazina/Carbon nanofibers a new catalyst support for hydrazine decomposition  |
| Year | 2003 |
| Access Date | 2024, May 20 |
| Secondary Type | PRE PN |
| Number of Files | 1 |
| Size | 431 KiB |
| 2. Context | |
| Author | 1 Vieira, Ricardo 2 Pham-Huu, Cuong 3 Keller, Nicolas 4 Ledoux, Marc J. |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JJ68 |
| Group | 1 LCP-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais. Laboratório de Combustão 2 Laboratoire des Matériaux, Surface et Procédés pour la Catalyse, Université Louis Pasteur, 25 rue Becquerel, 67087 Strasbourg 3 Cedex 2, France |
| Journal | Química Nova |
| Volume | 26 |
| Number | 5 |
| Pages | 665-669 |
| History (UTC) | 2008-06-10 22:25:40 :: administrator -> marciana :: 2009-03-11 18:18:12 :: 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 | combustão preparação de catalisadores catálise decomposição da hidrazina carbono satélites hydrazine decomposition micropropulsors catalyzed |
| Abstract | Today satellites propulsion is based on the use of monopropellant and/or bipropellant chemical systems. The maneuvering of satellite is based on the hydrazine decomposition micropropulsors catalyzed by metallic iridium supported on alumina. This reaction is a surface reaction and is strongly exothermic and implies that the operation of the micropropulsor is controlled by the mass and heat diffusions. For this reason and for the fact that the propulsor operation is frequently in pulsed regime, the catalyst should support high pressure and temperature variations within a short time period. The performance and the durability of the commercial catalyst are jeopardized by the low thermal conductivity of the alumina. The low thermal conductivity of the alumina support restricts the heat diffusion and leads to the formation of hot spots on the catalyst surface causing the metal sintering and/or fractures of the support, resulting in loss of the activity and catalyst destruction. This work presents the synthesis and characterization of new carbon composite support for the active element iridium, in substitution of the commercial catalysts alumina based support. These supports are constituted of carbon nanofibers (30 to 40 nm diameter) supported on a macroscopic carbon felt. These materials present high thermal conductivity and mechanical resistance, as well as the easiness to be shaped with different macroscopic shapes. The mechanical stability and the performance of the iridium supported on the carbon composite support, evaluated in a laboratory scale test in hydrazine decomposition reaction, are superior compared to the commercial catalyst. |
| Area | COMB |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Novos materiais à... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZsFDuKxG/AGTqh |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZsFDuKxG/AGTqh |
| Language | pt |
| Target File | novos.pdf |
| User Group | administrator marciana |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ET38CH |
| Citing Item List | sid.inpe.br/bibdigital@80/2006/04.07.15.50.13 2 |
| Dissemination | WEBSCI; SCIELO. |
| 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 month 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 | |