N‐Doped Defective Graphene from Biomass as Catalyst for CO2 Hydrogenation to Methane
N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO2 to CH4 at temperatures about 500 °C with estimated turnover frequencies and activation energy values of 73.17 s−1 and 24.3 kcal×mol−1, respectively. It h...
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| Veröffentlicht in: | ChemCatChem 2019-02, Vol.11 (3), p.985-990 |
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| creator | Jurca, Bogdan Bucur, Cristina Primo, Ana Concepción, Patricia Parvulescu, Vasile I. García, Hermenegildo |
| description | N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO2 to CH4 at temperatures about 500 °C with estimated turnover frequencies and activation energy values of 73.17 s−1 and 24.3 kcal×mol−1, respectively. It has been found that this enhanced catalytic activity compared to other related doped defective graphenes derives from the presence of pyridinic N atoms that adsorbs CO2 forming carbamate‐type adsorbates.
Defective graphenes obtained from biomass waste were used to promote the selective hydrogenation of CO2 to methane. The catalytic activity of these materials is notably improved by N doping. |
| doi_str_mv | 10.1002/cctc.201801984 |
| format | Article |
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Defective graphenes obtained from biomass waste were used to promote the selective hydrogenation of CO2 to methane. The catalytic activity of these materials is notably improved by N doping.</description><subject>Adsorbates</subject><subject>carbamate intermediates</subject><subject>Carbon dioxide</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chitosan</subject><subject>Graphene</subject><subject>Hydrogenation</subject><subject>hydrogenation of CO2 to methane</subject><subject>Methane</subject><subject>N-doped defective graphene</subject><subject>pyridinic active species</subject><subject>Pyrolysis</subject><issn>1867-3880</issn><issn>1867-3899</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNo9kLFOwzAYhC0EEqWwMltiTrGdxLFHSKFFKnQprJbt_KGp2jjYLigbj8Az8iS0Kup0d9LpTvoQuqZkRAlht9ZGO2KECkKlyE7QgApeJKmQ8vToBTlHFyGsCOEyLfIBenv5_f4Zuw4qPIYabGw-AU-87pbQAq692-D7xm10CFgHXOqo132IuHYel3OGp33l3Tu0OjauxdHhZ4hL3cIlOqv1OsDVvw7R6-PDopwms_nkqbybJSvGZZZongoAKXPNjORZXhSWFTWRhjNuKEAqtQUjiMylMZQJA1ZSTo2gKeQ2q9Ihujnsdt59bCFEtXJb3-4uFaNFQbI8l9muJQ-tr2YNvep8s9G-V5SoPTi1B6eO4FRZLspjSv8A26ZkVQ</recordid><startdate>20190206</startdate><enddate>20190206</enddate><creator>Jurca, Bogdan</creator><creator>Bucur, Cristina</creator><creator>Primo, Ana</creator><creator>Concepción, Patricia</creator><creator>Parvulescu, Vasile I.</creator><creator>García, Hermenegildo</creator><general>Wiley Subscription Services, Inc</general><scope/><orcidid>https://orcid.org/0000-0002-9664-493X</orcidid></search><sort><creationdate>20190206</creationdate><title>N‐Doped Defective Graphene from Biomass as Catalyst for CO2 Hydrogenation to Methane</title><author>Jurca, Bogdan ; Bucur, Cristina ; Primo, Ana ; Concepción, Patricia ; Parvulescu, Vasile I. ; García, Hermenegildo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j2694-a638ee995a2b964577c27f09b626b1ee39aceb80959bb128bec9161b813e5c4d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adsorbates</topic><topic>carbamate intermediates</topic><topic>Carbon dioxide</topic><topic>Catalysis</topic><topic>Catalytic activity</topic><topic>Chitosan</topic><topic>Graphene</topic><topic>Hydrogenation</topic><topic>hydrogenation of CO2 to methane</topic><topic>Methane</topic><topic>N-doped defective graphene</topic><topic>pyridinic active species</topic><topic>Pyrolysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jurca, Bogdan</creatorcontrib><creatorcontrib>Bucur, Cristina</creatorcontrib><creatorcontrib>Primo, Ana</creatorcontrib><creatorcontrib>Concepción, Patricia</creatorcontrib><creatorcontrib>Parvulescu, Vasile I.</creatorcontrib><creatorcontrib>García, Hermenegildo</creatorcontrib><jtitle>ChemCatChem</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jurca, Bogdan</au><au>Bucur, Cristina</au><au>Primo, Ana</au><au>Concepción, Patricia</au><au>Parvulescu, Vasile I.</au><au>García, Hermenegildo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>N‐Doped Defective Graphene from Biomass as Catalyst for CO2 Hydrogenation to Methane</atitle><jtitle>ChemCatChem</jtitle><date>2019-02-06</date><risdate>2019</risdate><volume>11</volume><issue>3</issue><spage>985</spage><epage>990</epage><pages>985-990</pages><issn>1867-3880</issn><eissn>1867-3899</eissn><abstract>N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO2 to CH4 at temperatures about 500 °C with estimated turnover frequencies and activation energy values of 73.17 s−1 and 24.3 kcal×mol−1, respectively. It has been found that this enhanced catalytic activity compared to other related doped defective graphenes derives from the presence of pyridinic N atoms that adsorbs CO2 forming carbamate‐type adsorbates.
Defective graphenes obtained from biomass waste were used to promote the selective hydrogenation of CO2 to methane. The catalytic activity of these materials is notably improved by N doping.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/cctc.201801984</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-9664-493X</orcidid><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Adsorbates carbamate intermediates Carbon dioxide Catalysis Catalytic activity Chitosan Graphene Hydrogenation hydrogenation of CO2 to methane Methane N-doped defective graphene pyridinic active species Pyrolysis |
| title | N‐Doped Defective Graphene from Biomass as Catalyst for CO2 Hydrogenation to Methane |
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