Synthesis and characterization of magnetic mesoporous particles
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2010 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/5095 |
Resumo: | p. 269–277 |
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Leite, Carlos Alberto PaulaMorales, Marco A.Mascarenhas, Artur J. S.Gomes, Angelo M. S.Andrade, Heloysa Martins CarvalhoCastilho, Caio Mário Castro deGalembeck, FernandoLeite, Carlos Alberto PaulaMorales, Marco A.Mascarenhas, Artur J. S.Gomes, Angelo M. S.Andrade, Heloysa Martins CarvalhoCastilho, Caio Mário Castro deGalembeck, Fernando2012-01-10T18:39:42Z2012-01-10T18:39:42Z20100021-9797http://www.repositorio.ufba.br/ri/handle/ri/5095v. 342p. 269–277Magnetic mesoporous particles were synthesized and their magnetic and structural properties are reported. The synthesis procedure consists of four steps: (i) preparation of magnetite colloidal nanopar- ticles; (ii) growth of a silica layer; (iii) development of the mesoporous structure and (iv) template removal. Two different methods for the template removal were studied and their effectiveness was dis-cussed. Magnetization and Mössbauer spectroscopy measurements showed superparamagnetic behavior for the particles at room temperature. X-ray diffraction and nitrogen adsorption measurements showed a mesoporous MCM-41 structure with 2.48 nm pore diameter and 1023 m2/g total area.Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2012-01-10T18:39:42Z No. of bitstreams: 1 979709013873-main.pdf: 834113 bytes, checksum: 16a30f8473dd945f0651ada98592e294 (MD5)Made available in DSpace on 2012-01-10T18:39:42Z (GMT). No. of bitstreams: 1 979709013873-main.pdf: 834113 bytes, checksum: 16a30f8473dd945f0651ada98592e294 (MD5) Previous issue date: 2010Magnetic mesoporous particlesMCM-41NanoparticlesTextural propertiesSuperparamagnetismSynthesis and characterization of magnetic mesoporous particlesJournal of Colloid and Interface Scienceinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAinfo:eu-repo/semantics/openAccessORIGINAL979709013873-main.pdf979709013873-main.pdfapplication/pdf834113https://repositorio.ufba.br/bitstream/ri/5095/1/979709013873-main.pdf16a30f8473dd945f0651ada98592e294MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5095/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT979709013873-main.pdf.txt979709013873-main.pdf.txtExtracted texttext/plain35419https://repositorio.ufba.br/bitstream/ri/5095/3/979709013873-main.pdf.txt23d77fbcc4bffa6e796ead94d8c464deMD53ri/50952022-07-05 14:03:50.493oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:50Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Synthesis and characterization of magnetic mesoporous particles |
| dc.title.alternative.pt_BR.fl_str_mv |
Journal of Colloid and Interface Science |
| title |
Synthesis and characterization of magnetic mesoporous particles |
| spellingShingle |
Synthesis and characterization of magnetic mesoporous particles Leite, Carlos Alberto Paula Magnetic mesoporous particles MCM-41 Nanoparticles Textural properties Superparamagnetism |
| title_short |
Synthesis and characterization of magnetic mesoporous particles |
| title_full |
Synthesis and characterization of magnetic mesoporous particles |
| title_fullStr |
Synthesis and characterization of magnetic mesoporous particles |
| title_full_unstemmed |
Synthesis and characterization of magnetic mesoporous particles |
| title_sort |
Synthesis and characterization of magnetic mesoporous particles |
| author |
Leite, Carlos Alberto Paula |
| author_facet |
Leite, Carlos Alberto Paula Morales, Marco A. Mascarenhas, Artur J. S. Gomes, Angelo M. S. Andrade, Heloysa Martins Carvalho Castilho, Caio Mário Castro de Galembeck, Fernando |
| author_role |
author |
| author2 |
Morales, Marco A. Mascarenhas, Artur J. S. Gomes, Angelo M. S. Andrade, Heloysa Martins Carvalho Castilho, Caio Mário Castro de Galembeck, Fernando |
| author2_role |
author author author author author author |
| dc.contributor.author.fl_str_mv |
Leite, Carlos Alberto Paula Morales, Marco A. Mascarenhas, Artur J. S. Gomes, Angelo M. S. Andrade, Heloysa Martins Carvalho Castilho, Caio Mário Castro de Galembeck, Fernando Leite, Carlos Alberto Paula Morales, Marco A. Mascarenhas, Artur J. S. Gomes, Angelo M. S. Andrade, Heloysa Martins Carvalho Castilho, Caio Mário Castro de Galembeck, Fernando |
| dc.subject.por.fl_str_mv |
Magnetic mesoporous particles MCM-41 Nanoparticles Textural properties Superparamagnetism |
| topic |
Magnetic mesoporous particles MCM-41 Nanoparticles Textural properties Superparamagnetism |
| description |
p. 269–277 |
| publishDate |
2010 |
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2010 |
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2012-01-10T18:39:42Z |
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2012-01-10T18:39:42Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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http://www.repositorio.ufba.br/ri/handle/ri/5095 |
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0021-9797 |
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v. 342 |
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0021-9797 v. 342 |
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http://www.repositorio.ufba.br/ri/handle/ri/5095 |
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eng |
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