Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction
Autor(a) principal: | |
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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/5932 |
Resumo: | Trabalho completo: acesso restrito, p.15–20 |
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Figueiredo, Renan TavaresAndrade, Heloysa Martins CarvalhoFierro, José L.G.Figueiredo, Renan TavaresAndrade, Heloysa Martins CarvalhoFierro, José L.G.2012-05-18T20:44:25Z2010-031381-1169http://www.repositorio.ufba.br/ri/handle/ri/5932v. 318, n. 1–2Trabalho completo: acesso restrito, p.15–20Different coprecipitation sequences were used to prepare Cu/ZnO/Al2O3 catalysts for the water gas shift reaction. The interdispersion of the components of the obtained mixture of hydroxycarbonates seemed to be influenced by the coprecipitation sequence, at constant pH and temperature. High metallic copper surface area was observed when Cu2+ and Zn2+ ions were simultaneously coprecipitated. A remarkable activity was found to be related to the catalyst ability to restore the copper surface dispersion after reduction or oxidation pre-treatment. These last findings were evidenced by temperature-programmed reduction and X-ray photoelectron spectroscopy experiments.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-05-18T20:44:25Z No. of bitstreams: 1 (31)1-s2.0-S1381116909005135-main.pdf: 521802 bytes, checksum: d63a7ada73943392663f294cab169128 (MD5)Made available in DSpace on 2012-05-18T20:44:25Z (GMT). No. of bitstreams: 1 (31)1-s2.0-S1381116909005135-main.pdf: 521802 bytes, checksum: d63a7ada73943392663f294cab169128 (MD5) Previous issue date: 2010-03Elsevierhttp://dx.doi.org/10.1016/j.molcata.2009.10.028reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBALT-WGSRCu/Zn/Al catalystsCopper dispersionReductionOxidationInfluence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reactionJournal of Molecular Catalysis A: Chemicalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL(31)1-s2.0-S1381116909005135-main.pdf(31)1-s2.0-S1381116909005135-main.pdfapplication/pdf521802https://repositorio.ufba.br/bitstream/ri/5932/1/%2831%291-s2.0-S1381116909005135-main.pdfd63a7ada73943392663f294cab169128MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5932/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(31)1-s2.0-S1381116909005135-main.pdf.txt(31)1-s2.0-S1381116909005135-main.pdf.txtExtracted texttext/plain28458https://repositorio.ufba.br/bitstream/ri/5932/3/%2831%291-s2.0-S1381116909005135-main.pdf.txt2fb8fa557eb3e33af61e6fc81770bdbaMD53ri/59322022-07-05 14:03:21.401oai:repositorio.ufba.br:ri/5932VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIHJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBCgogICAgUGVsbyBwcm9jZXNzbyBkZSBzdWJtaXNz77+9byBkZSBkb2N1bWVudG9zLCBvIGF1dG9yIG91IHNldQpyZXByZXNlbnRhbnRlIGxlZ2FsLCBhbyBhY2VpdGFyIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBjb25jZWRlIGFvClJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkYSBCYWhpYSBvIGRpcmVpdG8KZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCAKZGUgcHJlc2VydmHvv73vv71vLiBFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIAphdXRvci9jb3B5cmlnaHQsIG1hcyBlbnRlbmRlIG8gZG9jdW1lbnRvIGNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4gCgogICAgUGFyYSBvcyBkb2N1bWVudG9zIHB1YmxpY2Fkb3MgY29tIHJlcGFzc2UgZGUgZGlyZWl0b3MgZGUgZGlzdHJpYnVp77+977+9bywgZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEgZW50ZW5kZSBxdWU6IAoKICAgIE1hbnRlbmRvIG9zICBkaXJlaXRvcyBhdXRvcmFpcywgcmVwYXNzYWRvcyBhIHRlcmNlaXJvcywgZW0gY2FzbyAKZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8gcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIAppbnRlZ3JhbCwgbWFzIGxpYmVyYSBhcyBpbmZvcm1h77+977+9ZXMgc29icmUgbyBkb2N1bWVudG8gKE1ldGFkYWRvcyBkZXNjcml0aXZvcykuCgogRGVzdGEgZm9ybWEsIGF0ZW5kZW5kbyBhb3MgYW5zZWlvcyBkZXNzYSB1bml2ZXJzaWRhZGUgCmVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gYXMgcmVzdHJp77+977+9ZXMgaW1wb3N0YXMgcGVsb3MgCmVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4gCgogICAgUGFyYSBhcyBwdWJsaWNh77+977+9ZXMgZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgCkFjZXNzbyBBYmVydG8sIG9zIGRlcO+/vXNpdG9zIGNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gCm9zIGRpcmVpdG9zIGF1dG9yYWlzLCBtYXMgbWFudO+/vW0gbyBhY2Vzc28gaXJyZXN0cml0byBhbyBtZXRhZGFkb3MgCmUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIApjb25zZW50aW1lbnRvIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgCmVzdGFyZW0gZW0gaW5pY2lhdGl2YXMgZGUgYWNlc3NvIGFiZXJ0by4KCiAgICBFbSBhbWJvcyBvIGNhc28sIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBwb2RlIHNlciBhY2VpdG8gcGVsbyAKYXV0b3IsIGRldGVudG9yZXMgZGUgZGlyZWl0b3MgZS9vdSB0ZXJjZWlyb3MgYW1wYXJhZG9zIHBlbGEgCnVuaXZlcnNpZGFkZS4gRGV2aWRvIGFvcyBkaWZlcmVudGVzIHByb2Nlc3NvcyBwZWxvIHF1YWwgYSBzdWJtaXNz77+9byAKcG9kZSBvY29ycmVyLCBvIHJlcG9zaXTvv71yaW8gcGVybWl0ZSBhIGFjZWl0Ye+/ve+/vW8gZGEgbGljZW7vv71hIHBvciAKdGVyY2Vpcm9zLCBzb21lbnRlIG5vcyBjYXNvcyBkZSBkb2N1bWVudG9zIHByb2R1emlkb3MgcG9yIGludGVncmFudGVzIApkYSBVRkJBIGUgc3VibWV0aWRvcyBwb3IgcGVzc29hcyBhbXBhcmFkYXMgcG9yIGVzdGEgaW5zdGl0dWnvv73vv71vLgo=Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:21Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
dc.title.pt_BR.fl_str_mv |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
dc.title.alternative.pt_BR.fl_str_mv |
Journal of Molecular Catalysis A: Chemical |
title |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
spellingShingle |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction Figueiredo, Renan Tavares LT-WGSR Cu/Zn/Al catalysts Copper dispersion Reduction Oxidation |
title_short |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
title_full |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
title_fullStr |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
title_full_unstemmed |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
title_sort |
Influence of the preparation methods and redox properties of Cu/ZnO/Al2O3 catalysts for the water gas shift reaction |
author |
Figueiredo, Renan Tavares |
author_facet |
Figueiredo, Renan Tavares Andrade, Heloysa Martins Carvalho Fierro, José L.G. |
author_role |
author |
author2 |
Andrade, Heloysa Martins Carvalho Fierro, José L.G. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Figueiredo, Renan Tavares Andrade, Heloysa Martins Carvalho Fierro, José L.G. Figueiredo, Renan Tavares Andrade, Heloysa Martins Carvalho Fierro, José L.G. |
dc.subject.por.fl_str_mv |
LT-WGSR Cu/Zn/Al catalysts Copper dispersion Reduction Oxidation |
topic |
LT-WGSR Cu/Zn/Al catalysts Copper dispersion Reduction Oxidation |
description |
Trabalho completo: acesso restrito, p.15–20 |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010-03 |
dc.date.accessioned.fl_str_mv |
2012-05-18T20:44:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufba.br/ri/handle/ri/5932 |
dc.identifier.issn.none.fl_str_mv |
1381-1169 |
dc.identifier.number.pt_BR.fl_str_mv |
v. 318, n. 1–2 |
identifier_str_mv |
1381-1169 v. 318, n. 1–2 |
url |
http://www.repositorio.ufba.br/ri/handle/ri/5932 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.pt_BR.fl_str_mv |
http://dx.doi.org/10.1016/j.molcata.2009.10.028 |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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Universidade Federal da Bahia (UFBA) |
instacron_str |
UFBA |
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UFBA |
reponame_str |
Repositório Institucional da UFBA |
collection |
Repositório Institucional da UFBA |
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