CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements
Renewed interest in CO2 methanation is due to its role within the framework of the Power-to-Methane processes. While the use of nickel-based catalysts for CO2 methanation is well stablished, the support is being subjected to thorough research due to its complex effects. The objective of this work wa...
| Autores: | ; ; ; ; ; |
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| Tipo de documento: | Artigo |
| Estado: | Published version |
| Data de publicação: | 2023 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositório: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/146552 |
| Acesso em linha: | https://hdl.handle.net/11441/146552 https://doi.org/10.3390/catal13020448 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | Carbon dioxide Hydrogenation Methane Nickel catalysts Operando FTIR Support TOF |
| _version_ | 1878730003637600256 |
|---|---|
| author | González Rangulan, Vigni V. |
| author2 | Reyero, Inés Bimbela, Fernando Romero Sarria, Francisca Daturi, Marco Gandía, Luis M. |
| author2_role | author author author author author |
| author_browse | Bimbela, Fernando Daturi, Marco Gandía, Luis M. González Rangulan, Vigni V. Reyero, Inés Romero Sarria, Francisca |
| author_facet | González Rangulan, Vigni V. Reyero, Inés Bimbela, Fernando Romero Sarria, Francisca Daturi, Marco Gandía, Luis M. |
| author_role | author |
| collection | idUS. Depósito de Investigación de la Universidad de Sevilla |
| description | Renewed interest in CO2 methanation is due to its role within the framework of the Power-to-Methane processes. While the use of nickel-based catalysts for CO2 methanation is well stablished, the support is being subjected to thorough research due to its complex effects. The objective of this work was the study of the influence of the support with a series of catalysts supported on alumina, ceria, ceria–zirconia, and titania. Catalysts’ performance has been kinetically and spectroscopically evaluated over a wide range of temperatures (150–500 °C). The main results have shown remarkable differences among the catalysts as concerns Ni dispersion, metallic precursor reducibility, basic properties, and catalytic activity. Operando infrared spectroscopy measurements have evidenced the presence of almost the same type of adsorbed species during the course of the reaction, but with different relative intensities. The results indicate that using as support of Ni a reducible metal oxide that is capable of developing the basicity associated with medium-strength basic sites and a suitable balance between metallic sites and centers linked to the support leads to high CO2 methanation activity. In addition, the results obtained by operando FTIR spectroscopy suggest that CO2 methanation follows the formate pathway over the catalysts under consideration. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_135ec6346bcd05eec6b052d393436d74 |
| institution | Universidad de Sevilla (US) |
| instname_str | Universidad de Sevilla (US) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:idus.us.es:11441/146552 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
| publisherStr | Multidisciplinary Digital Publishing Institute (MDPI) |
| reponame_str | idUS. Depósito de Investigación de la Universidad de Sevilla |
| spelling | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements González Rangulan, Vigni V. Reyero, Inés Bimbela, Fernando Romero Sarria, Francisca Daturi, Marco Gandía, Luis M. Carbon dioxide Hydrogenation Methane Nickel catalysts Operando FTIR Support TOF Renewed interest in CO2 methanation is due to its role within the framework of the Power-to-Methane processes. While the use of nickel-based catalysts for CO2 methanation is well stablished, the support is being subjected to thorough research due to its complex effects. The objective of this work was the study of the influence of the support with a series of catalysts supported on alumina, ceria, ceria–zirconia, and titania. Catalysts’ performance has been kinetically and spectroscopically evaluated over a wide range of temperatures (150–500 °C). The main results have shown remarkable differences among the catalysts as concerns Ni dispersion, metallic precursor reducibility, basic properties, and catalytic activity. Operando infrared spectroscopy measurements have evidenced the presence of almost the same type of adsorbed species during the course of the reaction, but with different relative intensities. The results indicate that using as support of Ni a reducible metal oxide that is capable of developing the basicity associated with medium-strength basic sites and a suitable balance between metallic sites and centers linked to the support leads to high CO2 methanation activity. In addition, the results obtained by operando FTIR spectroscopy suggest that CO2 methanation follows the formate pathway over the catalysts under consideration. Ministerio de Ciencia e Innovación MCIN/AEI/10.13039/501100011033/ Fondo Europeo de Desarrollo Regional PID2021-127265OB-C21 European Union PLEC2022-009221, TED2021-130846B-100 Multidisciplinary Digital Publishing Institute (MDPI) https://hdl.handle.net/11441/146552 https://doi.org/10.3390/catal13020448 |
| spellingShingle | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements González Rangulan, Vigni V. Carbon dioxide Hydrogenation Methane Nickel catalysts Operando FTIR Support TOF |
| status_str | publishedVersion |
| title | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| title_full | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| title_fullStr | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| title_full_unstemmed | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| title_short | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| title_sort | CO2 Methanation over Nickel Catalysts: Support Effects Investigated through Specific Activity and Operando IR Spectroscopy Measurements |
| topic | Carbon dioxide Hydrogenation Methane Nickel catalysts Operando FTIR Support TOF |
| topic_facet | Carbon dioxide Hydrogenation Methane Nickel catalysts Operando FTIR Support TOF |
| url | https://hdl.handle.net/11441/146552 https://doi.org/10.3390/catal13020448 |