Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption

Detalhes bibliográficos
Autor(a) principal: Brescia, Enil Almeida
Data de Publicação: 2022
Outros Autores: Vasconcelos, Wander Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista de Engenharia Química e Química
Texto Completo: https://periodicos.ufv.br/jcec/article/view/13502
Resumo: Hierarchically structured materials, with various levels of porosity, have been researched due to their properties, such as high surface area, accessibility to active sites and controlled mass diffusion. Characterization of these materials to determine pore size, surface area and pore size distribution is necessary for selection and performance optimization in many industrial applications (catalysis, adsorption, separation, energy and biochemistry). This review presents important aspects for the structural characterization of porous materials by gas adsorption, focusing on the interconnectivity of micro-mesopores. The general fundamentals of adsorption for the characterization of materials using independent pore model and development of theoretical and experimental studies for the characterization of materials with interconnected pores, illustrated with the characterization by advanced adsorption, were presented. In recent years, the progress in the synthesis of mesoporous materials, advances in experimental techniques and commercial instrumentation, microscopic approaches and computational methods have shown a great development in research to understand the structure-property relationship of these hierarchical materials. Gas adsorption is the most used method to characterize porous solids and is well established for independent pore modeling. However, the challenge for the development of models for interconnected pores persists. In materials with disordered pores, more research effort in the development of experimental techniques and molecular simulation is needed to understand the behavior of these heterogeneous materials.
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spelling Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption Revisão teórica da interconectividade de materiais porosos hierárquicos - caracterização por adsorção físicaAdsorption. Porous materials. Hierarchy of pores. Interconnectivity.Adsorção. Materiais porosos. Hierarquia de poros. Interconectividade.Hierarchically structured materials, with various levels of porosity, have been researched due to their properties, such as high surface area, accessibility to active sites and controlled mass diffusion. Characterization of these materials to determine pore size, surface area and pore size distribution is necessary for selection and performance optimization in many industrial applications (catalysis, adsorption, separation, energy and biochemistry). This review presents important aspects for the structural characterization of porous materials by gas adsorption, focusing on the interconnectivity of micro-mesopores. The general fundamentals of adsorption for the characterization of materials using independent pore model and development of theoretical and experimental studies for the characterization of materials with interconnected pores, illustrated with the characterization by advanced adsorption, were presented. In recent years, the progress in the synthesis of mesoporous materials, advances in experimental techniques and commercial instrumentation, microscopic approaches and computational methods have shown a great development in research to understand the structure-property relationship of these hierarchical materials. Gas adsorption is the most used method to characterize porous solids and is well established for independent pore modeling. However, the challenge for the development of models for interconnected pores persists. In materials with disordered pores, more research effort in the development of experimental techniques and molecular simulation is needed to understand the behavior of these heterogeneous materials.Os materiais hierarquicamente estruturados, apresentando vários níveis de porosidades, têm sido pesquisados, devido às suas propriedades, como área superficial elevada, acessibilidade para sítios ativos e controlada difusão de massa. A caracterização desses materiais para determinação do tamanho dos poros, área superficial e distribuição de tamanho de poros é necessária para seleção e otimização do desempenho em muitas aplicações industriais (catálise, adsorção, separação, energia e bioquímica). Esta revisão apresenta os aspectos importantes para a caracterização estrutural de materiais porosos por adsorção de gás, com foco na interconectividade de micro-mesoporos. São apresentados os fundamentos gerais da adsorção para caracterização de materiais utilizando o modelo de poros independentes e o desenvolvimento de estudos teóricos e experimentais para caracterização de materiais com poros interconectados, ilustrados com a caracterização por adsorção avançada. Nos últimos anos, o progresso nas sínteses de materiais mesoporosos, os avanços nas técnicas experimentais e da instrumentação comercial, as abordagens microscópicas e os métodos computacionais, resultaram em um grande desenvolvimento na pesquisa para compreender a relação estrutura-propriedade desses materiais hierárquicos. A adsorção de gás é o método mais usado para caracterizar sólidos porosos e está bem estabelecida para modelo de poros independentes. Persiste, no entanto, o desafio para o desenvolvimento de modelos para poros interconectados. Em materiais com poros desordenados, mais esforço de pesquisa no desenvolvimento de técnicas experimentais e de simulação molecular é necessário para compreender o comportamento destes materiais heterogêneos.Universidade Federal de Viçosa - UFV2022-01-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/jcec/article/view/1350210.18540/jcecvl8iss1pp13502-01-15eThe Journal of Engineering and Exact Sciences; Vol. 8 No. 1 (2022); 13502-01-15eThe Journal of Engineering and Exact Sciences; Vol. 8 Núm. 1 (2022); 13502-01-15eThe Journal of Engineering and Exact Sciences; v. 8 n. 1 (2022); 13502-01-15e2527-1075reponame:Revista de Engenharia Química e Químicainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/jcec/article/view/13502/7112Copyright (c) 2022 The Journal of Engineering and Exact Scienceshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBrescia, Enil AlmeidaVasconcelos, Wander Luiz2022-01-30T13:19:07Zoai:ojs.periodicos.ufv.br:article/13502Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/indexONGhttps://periodicos.ufv.br/jcec/oaijcec.journal@ufv.br||req2@ufv.br2446-94162446-9416opendoar:2022-01-30T13:19:07Revista de Engenharia Química e Química - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
Revisão teórica da interconectividade de materiais porosos hierárquicos - caracterização por adsorção física
title Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
spellingShingle Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
Brescia, Enil Almeida
Adsorption. Porous materials. Hierarchy of pores. Interconnectivity.
Adsorção. Materiais porosos. Hierarquia de poros. Interconectividade.
title_short Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
title_full Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
title_fullStr Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
title_full_unstemmed Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
title_sort Theorical review of the interconnectivity of hierarchical porous materials – characterization by physical adsorption
author Brescia, Enil Almeida
author_facet Brescia, Enil Almeida
Vasconcelos, Wander Luiz
author_role author
author2 Vasconcelos, Wander Luiz
author2_role author
dc.contributor.author.fl_str_mv Brescia, Enil Almeida
Vasconcelos, Wander Luiz
dc.subject.por.fl_str_mv Adsorption. Porous materials. Hierarchy of pores. Interconnectivity.
Adsorção. Materiais porosos. Hierarquia de poros. Interconectividade.
topic Adsorption. Porous materials. Hierarchy of pores. Interconnectivity.
Adsorção. Materiais porosos. Hierarquia de poros. Interconectividade.
description Hierarchically structured materials, with various levels of porosity, have been researched due to their properties, such as high surface area, accessibility to active sites and controlled mass diffusion. Characterization of these materials to determine pore size, surface area and pore size distribution is necessary for selection and performance optimization in many industrial applications (catalysis, adsorption, separation, energy and biochemistry). This review presents important aspects for the structural characterization of porous materials by gas adsorption, focusing on the interconnectivity of micro-mesopores. The general fundamentals of adsorption for the characterization of materials using independent pore model and development of theoretical and experimental studies for the characterization of materials with interconnected pores, illustrated with the characterization by advanced adsorption, were presented. In recent years, the progress in the synthesis of mesoporous materials, advances in experimental techniques and commercial instrumentation, microscopic approaches and computational methods have shown a great development in research to understand the structure-property relationship of these hierarchical materials. Gas adsorption is the most used method to characterize porous solids and is well established for independent pore modeling. However, the challenge for the development of models for interconnected pores persists. In materials with disordered pores, more research effort in the development of experimental techniques and molecular simulation is needed to understand the behavior of these heterogeneous materials.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufv.br/jcec/article/view/13502
10.18540/jcecvl8iss1pp13502-01-15e
url https://periodicos.ufv.br/jcec/article/view/13502
identifier_str_mv 10.18540/jcecvl8iss1pp13502-01-15e
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufv.br/jcec/article/view/13502/7112
dc.rights.driver.fl_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv The Journal of Engineering and Exact Sciences; Vol. 8 No. 1 (2022); 13502-01-15e
The Journal of Engineering and Exact Sciences; Vol. 8 Núm. 1 (2022); 13502-01-15e
The Journal of Engineering and Exact Sciences; v. 8 n. 1 (2022); 13502-01-15e
2527-1075
reponame:Revista de Engenharia Química e Química
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista de Engenharia Química e Química
collection Revista de Engenharia Química e Química
repository.name.fl_str_mv Revista de Engenharia Química e Química - Universidade Federal de Viçosa (UFV)
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