Photoelectrochemical oxidation of glycerol on hematite: thermal effects, in situ FTIR and long-term HPLC product analysis
Photoelectrochemical (PEC) oxidation of biomass is a profitable approach to produce hydrogen by substituting the water oxidation reaction in the electrolyzers’ photoanodes. Among the biomass-derived molecules, glycerol is an interesting alternative to water since its standard thermodynamic potential...
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| Veröffentlicht in: | Journal of solid state electrochemistry 2021-03, Vol.25 (3), p.1101-1110 |
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| container_title | Journal of solid state electrochemistry |
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| creator | Perini, Nickson Hessel, Cristian Bott-Neto, José L. Pires, Cléo T. G. V. M. T. Fernandez, Pablo S. Sitta, Elton |
| description | Photoelectrochemical (PEC) oxidation of biomass is a profitable approach to produce hydrogen by substituting the water oxidation reaction in the electrolyzers’ photoanodes. Among the biomass-derived molecules, glycerol is an interesting alternative to water since its standard thermodynamic potential is considerably lower than that of water and because it is widely produced in the biodiesel industry. Herein, we performed a fundamental study of the PEC oxidation of glycerol on hematite. In situ FTIR experiments and long-term electrolysis followed by HPLC analysis revealed C1, C2 and C3 oxidation products showing the low selectivity of the reaction under these conditions. We explained this lack of selectivity by an electrooxidation mechanism involving highly reactive radicals as intermediates.
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| doi_str_mv | 10.1007/s10008-020-04878-7 |
| format | Article |
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Graphical abstract</description><subject>Analytical Chemistry</subject><subject>Biodiesel fuels</subject><subject>Biomass</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Condensed Matter Physics</subject><subject>Electrochemistry</subject><subject>Electrolysis</subject><subject>Energy Storage</subject><subject>Glycerol</subject><subject>Hematite</subject><subject>Original Paper</subject><subject>Oxidation</subject><subject>Physical Chemistry</subject><subject>Selectivity</subject><subject>Temperature effects</subject><issn>1432-8488</issn><issn>1433-0768</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhhdRsFb_gKeAV6OT3W2S9SbF2kLBIvUc0ny0W7abmmTB_ffGruDNSybMPM8wvFl2S-CBALDHkF7gGHLAUHLGMTvLRqQsCgyM8vPTP8e85PwyuwphD0AYJTDK-tXORWcao6J3amcOtZINcl-1lrF2LXIWbZteGe9St0UJSP1onlDcGX9IqLE2ueEe1S0KdezQbL14R7LVqHHtFsdEoflqOUVH73SnYhrJpg91uM4urGyCufmt4-xj9rKezvHy7XUxfV5iVUxoxGWuCl1sQGtqN1W1ySVRFpQugehcUkZkUXKrJoSxCbNcGZm8iioiFSGU6GKc3Q170wGfnQlR7F3n0xFB5GUFlLIK8kTlA6W8C8EbK46-PkjfCwLiJ2IxRCxSxOIUsWBJKgYpJLjdGv-3-h_rG_QHgC8</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Perini, Nickson</creator><creator>Hessel, Cristian</creator><creator>Bott-Neto, José L.</creator><creator>Pires, Cléo T. G. V. M. T.</creator><creator>Fernandez, Pablo S.</creator><creator>Sitta, Elton</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-3181-0076</orcidid></search><sort><creationdate>20210301</creationdate><title>Photoelectrochemical oxidation of glycerol on hematite: thermal effects, in situ FTIR and long-term HPLC product analysis</title><author>Perini, Nickson ; Hessel, Cristian ; Bott-Neto, José L. ; Pires, Cléo T. G. V. M. T. ; Fernandez, Pablo S. ; Sitta, Elton</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-42c3d3b0dd6fb99b2a1cf0cd401d2a671a348fc517757f8ceac3596c1ac1161d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Analytical Chemistry</topic><topic>Biodiesel fuels</topic><topic>Biomass</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Condensed Matter Physics</topic><topic>Electrochemistry</topic><topic>Electrolysis</topic><topic>Energy Storage</topic><topic>Glycerol</topic><topic>Hematite</topic><topic>Original Paper</topic><topic>Oxidation</topic><topic>Physical Chemistry</topic><topic>Selectivity</topic><topic>Temperature effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Perini, Nickson</creatorcontrib><creatorcontrib>Hessel, Cristian</creatorcontrib><creatorcontrib>Bott-Neto, José L.</creatorcontrib><creatorcontrib>Pires, Cléo T. G. V. M. T.</creatorcontrib><creatorcontrib>Fernandez, Pablo S.</creatorcontrib><creatorcontrib>Sitta, Elton</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of solid state electrochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Perini, Nickson</au><au>Hessel, Cristian</au><au>Bott-Neto, José L.</au><au>Pires, Cléo T. G. V. M. T.</au><au>Fernandez, Pablo S.</au><au>Sitta, Elton</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoelectrochemical oxidation of glycerol on hematite: thermal effects, in situ FTIR and long-term HPLC product analysis</atitle><jtitle>Journal of solid state electrochemistry</jtitle><stitle>J Solid State Electrochem</stitle><date>2021-03-01</date><risdate>2021</risdate><volume>25</volume><issue>3</issue><spage>1101</spage><epage>1110</epage><pages>1101-1110</pages><issn>1432-8488</issn><eissn>1433-0768</eissn><abstract>Photoelectrochemical (PEC) oxidation of biomass is a profitable approach to produce hydrogen by substituting the water oxidation reaction in the electrolyzers’ photoanodes. Among the biomass-derived molecules, glycerol is an interesting alternative to water since its standard thermodynamic potential is considerably lower than that of water and because it is widely produced in the biodiesel industry. Herein, we performed a fundamental study of the PEC oxidation of glycerol on hematite. In situ FTIR experiments and long-term electrolysis followed by HPLC analysis revealed C1, C2 and C3 oxidation products showing the low selectivity of the reaction under these conditions. We explained this lack of selectivity by an electrooxidation mechanism involving highly reactive radicals as intermediates.
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| subjects | Analytical Chemistry Biodiesel fuels Biomass Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Condensed Matter Physics Electrochemistry Electrolysis Energy Storage Glycerol Hematite Original Paper Oxidation Physical Chemistry Selectivity Temperature effects |
| title | Photoelectrochemical oxidation of glycerol on hematite: thermal effects, in situ FTIR and long-term HPLC product analysis |
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