Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution
. [Display omitted] ▶ On-line qualitative and quantitative product analysis during a DE-PEMFC operation. ▶ Study of the effect of the cell current and the operating temperature on the ethanol conversion, the products’ selectivity and yield. ▶ The maximum ethanol conversion is equal to 4.6% when the...
Gespeichert in:
| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2010-10, Vol.100 (1-2), p.157-164 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 164 |
|---|---|
| container_issue | 1-2 |
| container_start_page | 157 |
| container_title | Applied catalysis. B, Environmental |
| container_volume | 100 |
| creator | Andreadis, G. Stergiopoulos, V. Song, S. Tsiakaras, P. |
| description | . [Display omitted]
▶ On-line qualitative and quantitative product analysis during a DE-PEMFC operation. ▶ Study of the effect of the cell current and the operating temperature on the ethanol conversion, the products’ selectivity and yield. ▶ The maximum ethanol conversion is equal to 4.6% when the cell current is 120mA at 90°C. ▶ The increase of the temperature results in the increase of the acetaldehyde selectivity and the decrease of the acetic acid selectivity at a constant operating current. ▶ The maximum reaction yield towards acetaldehyde and acetic acid is 2.6% and 1.7%, respectively, at 90°C and 120mA.
In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current and operating temperature on (a) the ethanol's conversion, (b) the reaction products distribution and (c) the reaction yield towards each released product, is examined. The MEA used during the experiments is comprised of a PtRu/C anode, a Nafion®-115 membrane and a Pt/C cathode. It is found that the increase of the cell current and the operating temperature lead to an increase of the ethanol conversion. The maximum ethanol conversion is found to be 4.6% and it is recorded when the cell current is 120mA and the cell temperature is 90°C. The main products detected during the fuel cell operation are acetaldehyde (CH3CHO), acetic acid (CH3COOH) and small amounts of carbon dioxide (CO2). The selectivity of acetaldehyde ranges from 45% to 70%, the selectivity of acetic acid ranges from 25% to 45% and the selectivity of CO2 ranges from 5% to 15%. As it concerns the reaction yield towards each product, it is found that the increase of the temperature results in an increase of the yield. Furthermore, from the Arrhenius plots based on the products formation rate, it is found that the acetaldehyde is favored over PtRu/C compared to the other products. Finally, based on the apparent activation energy of the CO2 formation rate (50kJmol−1), it is concluded, that the C–C bond breakage of the ethanol molecule is difficult to occur over the anode catalyst. |
| doi_str_mv | 10.1016/j.apcatb.2010.07.025 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_864405564</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0926337310003310</els_id><sourcerecordid>864405564</sourcerecordid><originalsourceid>FETCH-LOGICAL-c438t-f61449e10440cae99384521b1d591604fa6f8b113bd3e32163d9218ede8f492f3</originalsourceid><addsrcrecordid>eNp9kUFv1DAQhS0EEsvCP-CQC6KXbD0ex3E4IKFCW6RKXMrZOM6Y9SpNFttB4t_j7FY99mSN3zczT28Yew98BxzU5WFnj87mfid4-eLtjovmBduAbrFGrfEl2_BOqBqxxdfsTUoHzrlAoTfs19cQyeWK8t5O81j5hcbK0TimT9X9niryfpVnX-VSrUI1hOT2Nv4u5RIjTUWdTuoxzsPiclqJHEO_5DBPb9krb8dE7x7fLft5_e3-6ra--3Hz_erLXe0k6lx7BVJ2BFxK7ix1HWrZCOhhaDpQXHqrvO4BsB-QUIDCoROgaSDtZSc8btnH89zi4s9CKZuH4rP4tRPNSzJalclNo2QhL54lQbWAXDXFw5bJM-rinFIkb44xPNj4zwA3a_TmYM7RmzV6w1tToi9tHx432OTs6KOdXEhPvQJRKhBQuM9njkowfwNFk1ygydFwOooZ5vD8ov8hcJqp</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1671306599</pqid></control><display><type>article</type><title>Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution</title><source>Elsevier ScienceDirect Journals</source><creator>Andreadis, G. ; Stergiopoulos, V. ; Song, S. ; Tsiakaras, P.</creator><creatorcontrib>Andreadis, G. ; Stergiopoulos, V. ; Song, S. ; Tsiakaras, P.</creatorcontrib><description>. [Display omitted]
▶ On-line qualitative and quantitative product analysis during a DE-PEMFC operation. ▶ Study of the effect of the cell current and the operating temperature on the ethanol conversion, the products’ selectivity and yield. ▶ The maximum ethanol conversion is equal to 4.6% when the cell current is 120mA at 90°C. ▶ The increase of the temperature results in the increase of the acetaldehyde selectivity and the decrease of the acetic acid selectivity at a constant operating current. ▶ The maximum reaction yield towards acetaldehyde and acetic acid is 2.6% and 1.7%, respectively, at 90°C and 120mA.
In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current and operating temperature on (a) the ethanol's conversion, (b) the reaction products distribution and (c) the reaction yield towards each released product, is examined. The MEA used during the experiments is comprised of a PtRu/C anode, a Nafion®-115 membrane and a Pt/C cathode. It is found that the increase of the cell current and the operating temperature lead to an increase of the ethanol conversion. The maximum ethanol conversion is found to be 4.6% and it is recorded when the cell current is 120mA and the cell temperature is 90°C. The main products detected during the fuel cell operation are acetaldehyde (CH3CHO), acetic acid (CH3COOH) and small amounts of carbon dioxide (CO2). The selectivity of acetaldehyde ranges from 45% to 70%, the selectivity of acetic acid ranges from 25% to 45% and the selectivity of CO2 ranges from 5% to 15%. As it concerns the reaction yield towards each product, it is found that the increase of the temperature results in an increase of the yield. Furthermore, from the Arrhenius plots based on the products formation rate, it is found that the acetaldehyde is favored over PtRu/C compared to the other products. Finally, based on the apparent activation energy of the CO2 formation rate (50kJmol−1), it is concluded, that the C–C bond breakage of the ethanol molecule is difficult to occur over the anode catalyst.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2010.07.025</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Acetaldehyde ; Applied sciences ; Carbon dioxide ; Catalysis ; Chemistry ; Colloidal state and disperse state ; Conversion ; Direct ethanol PEM fuel cell ; Electrolytic cells ; Energy ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Ethanol ; Ethanol conversion ; Ethyl alcohol ; Exact sciences and technology ; Fuel cells ; General and physical chemistry ; Membranes ; On-line product analysis ; Products distribution ; Selectivity ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><ispartof>Applied catalysis. B, Environmental, 2010-10, Vol.100 (1-2), p.157-164</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-f61449e10440cae99384521b1d591604fa6f8b113bd3e32163d9218ede8f492f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apcatb.2010.07.025$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23346121$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Andreadis, G.</creatorcontrib><creatorcontrib>Stergiopoulos, V.</creatorcontrib><creatorcontrib>Song, S.</creatorcontrib><creatorcontrib>Tsiakaras, P.</creatorcontrib><title>Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution</title><title>Applied catalysis. B, Environmental</title><description>. [Display omitted]
▶ On-line qualitative and quantitative product analysis during a DE-PEMFC operation. ▶ Study of the effect of the cell current and the operating temperature on the ethanol conversion, the products’ selectivity and yield. ▶ The maximum ethanol conversion is equal to 4.6% when the cell current is 120mA at 90°C. ▶ The increase of the temperature results in the increase of the acetaldehyde selectivity and the decrease of the acetic acid selectivity at a constant operating current. ▶ The maximum reaction yield towards acetaldehyde and acetic acid is 2.6% and 1.7%, respectively, at 90°C and 120mA.
In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current and operating temperature on (a) the ethanol's conversion, (b) the reaction products distribution and (c) the reaction yield towards each released product, is examined. The MEA used during the experiments is comprised of a PtRu/C anode, a Nafion®-115 membrane and a Pt/C cathode. It is found that the increase of the cell current and the operating temperature lead to an increase of the ethanol conversion. The maximum ethanol conversion is found to be 4.6% and it is recorded when the cell current is 120mA and the cell temperature is 90°C. The main products detected during the fuel cell operation are acetaldehyde (CH3CHO), acetic acid (CH3COOH) and small amounts of carbon dioxide (CO2). The selectivity of acetaldehyde ranges from 45% to 70%, the selectivity of acetic acid ranges from 25% to 45% and the selectivity of CO2 ranges from 5% to 15%. As it concerns the reaction yield towards each product, it is found that the increase of the temperature results in an increase of the yield. Furthermore, from the Arrhenius plots based on the products formation rate, it is found that the acetaldehyde is favored over PtRu/C compared to the other products. Finally, based on the apparent activation energy of the CO2 formation rate (50kJmol−1), it is concluded, that the C–C bond breakage of the ethanol molecule is difficult to occur over the anode catalyst.</description><subject>Acetaldehyde</subject><subject>Applied sciences</subject><subject>Carbon dioxide</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Conversion</subject><subject>Direct ethanol PEM fuel cell</subject><subject>Electrolytic cells</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Ethanol</subject><subject>Ethanol conversion</subject><subject>Ethyl alcohol</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>General and physical chemistry</subject><subject>Membranes</subject><subject>On-line product analysis</subject><subject>Products distribution</subject><subject>Selectivity</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><issn>0926-3373</issn><issn>1873-3883</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kUFv1DAQhS0EEsvCP-CQC6KXbD0ex3E4IKFCW6RKXMrZOM6Y9SpNFttB4t_j7FY99mSN3zczT28Yew98BxzU5WFnj87mfid4-eLtjovmBduAbrFGrfEl2_BOqBqxxdfsTUoHzrlAoTfs19cQyeWK8t5O81j5hcbK0TimT9X9niryfpVnX-VSrUI1hOT2Nv4u5RIjTUWdTuoxzsPiclqJHEO_5DBPb9krb8dE7x7fLft5_e3-6ra--3Hz_erLXe0k6lx7BVJ2BFxK7ix1HWrZCOhhaDpQXHqrvO4BsB-QUIDCoROgaSDtZSc8btnH89zi4s9CKZuH4rP4tRPNSzJalclNo2QhL54lQbWAXDXFw5bJM-rinFIkb44xPNj4zwA3a_TmYM7RmzV6w1tToi9tHx432OTs6KOdXEhPvQJRKhBQuM9njkowfwNFk1ygydFwOooZ5vD8ov8hcJqp</recordid><startdate>20101011</startdate><enddate>20101011</enddate><creator>Andreadis, G.</creator><creator>Stergiopoulos, V.</creator><creator>Song, S.</creator><creator>Tsiakaras, P.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7SU</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope><scope>7ST</scope><scope>7TV</scope><scope>SOI</scope></search><sort><creationdate>20101011</creationdate><title>Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution</title><author>Andreadis, G. ; Stergiopoulos, V. ; Song, S. ; Tsiakaras, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-f61449e10440cae99384521b1d591604fa6f8b113bd3e32163d9218ede8f492f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Acetaldehyde</topic><topic>Applied sciences</topic><topic>Carbon dioxide</topic><topic>Catalysis</topic><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Conversion</topic><topic>Direct ethanol PEM fuel cell</topic><topic>Electrolytic cells</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Ethanol</topic><topic>Ethanol conversion</topic><topic>Ethyl alcohol</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>General and physical chemistry</topic><topic>Membranes</topic><topic>On-line product analysis</topic><topic>Products distribution</topic><topic>Selectivity</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Andreadis, G.</creatorcontrib><creatorcontrib>Stergiopoulos, V.</creatorcontrib><creatorcontrib>Song, S.</creatorcontrib><creatorcontrib>Tsiakaras, P.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Applied catalysis. B, Environmental</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Andreadis, G.</au><au>Stergiopoulos, V.</au><au>Song, S.</au><au>Tsiakaras, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution</atitle><jtitle>Applied catalysis. B, Environmental</jtitle><date>2010-10-11</date><risdate>2010</risdate><volume>100</volume><issue>1-2</issue><spage>157</spage><epage>164</epage><pages>157-164</pages><issn>0926-3373</issn><eissn>1873-3883</eissn><abstract>. [Display omitted]
▶ On-line qualitative and quantitative product analysis during a DE-PEMFC operation. ▶ Study of the effect of the cell current and the operating temperature on the ethanol conversion, the products’ selectivity and yield. ▶ The maximum ethanol conversion is equal to 4.6% when the cell current is 120mA at 90°C. ▶ The increase of the temperature results in the increase of the acetaldehyde selectivity and the decrease of the acetic acid selectivity at a constant operating current. ▶ The maximum reaction yield towards acetaldehyde and acetic acid is 2.6% and 1.7%, respectively, at 90°C and 120mA.
In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current and operating temperature on (a) the ethanol's conversion, (b) the reaction products distribution and (c) the reaction yield towards each released product, is examined. The MEA used during the experiments is comprised of a PtRu/C anode, a Nafion®-115 membrane and a Pt/C cathode. It is found that the increase of the cell current and the operating temperature lead to an increase of the ethanol conversion. The maximum ethanol conversion is found to be 4.6% and it is recorded when the cell current is 120mA and the cell temperature is 90°C. The main products detected during the fuel cell operation are acetaldehyde (CH3CHO), acetic acid (CH3COOH) and small amounts of carbon dioxide (CO2). The selectivity of acetaldehyde ranges from 45% to 70%, the selectivity of acetic acid ranges from 25% to 45% and the selectivity of CO2 ranges from 5% to 15%. As it concerns the reaction yield towards each product, it is found that the increase of the temperature results in an increase of the yield. Furthermore, from the Arrhenius plots based on the products formation rate, it is found that the acetaldehyde is favored over PtRu/C compared to the other products. Finally, based on the apparent activation energy of the CO2 formation rate (50kJmol−1), it is concluded, that the C–C bond breakage of the ethanol molecule is difficult to occur over the anode catalyst.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcatb.2010.07.025</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0926-3373 |
| ispartof | Applied catalysis. B, Environmental, 2010-10, Vol.100 (1-2), p.157-164 |
| issn | 0926-3373 1873-3883 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_864405564 |
| source | Elsevier ScienceDirect Journals |
| subjects | Acetaldehyde Applied sciences Carbon dioxide Catalysis Chemistry Colloidal state and disperse state Conversion Direct ethanol PEM fuel cell Electrolytic cells Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Ethanol Ethanol conversion Ethyl alcohol Exact sciences and technology Fuel cells General and physical chemistry Membranes On-line product analysis Products distribution Selectivity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-23T04%3A52%3A43IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Direct%20ethanol%20fuel%20cells:%20The%20effect%20of%20the%20cell%20discharge%20current%20on%20the%20products%20distribution&rft.jtitle=Applied%20catalysis.%20B,%20Environmental&rft.au=Andreadis,%20G.&rft.date=2010-10-11&rft.volume=100&rft.issue=1-2&rft.spage=157&rft.epage=164&rft.pages=157-164&rft.issn=0926-3373&rft.eissn=1873-3883&rft_id=info:doi/10.1016/j.apcatb.2010.07.025&rft_dat=%3Cproquest_cross%3E864405564%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1671306599&rft_id=info:pmid/&rft_els_id=S0926337310003310&rfr_iscdi=true |