Loading…

Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods

In this work nanoparticulated platinum catalysts have been prepared on carbon Vulcan XC-72 using three methods starting with chloroplatinic acid as a precursor: (i) formic acid as a reductor agent; (ii) impregnation method followed by reduction in hydrogen atmosphere at moderated temperature; and (i...

Full description

Saved in:
Bibliographic Details
Published in:International journal of hydrogen energy 2009-10, Vol.34 (19), p.8193-8203
Main Authors: Nores-Pondal, F.J., Vilella, I.M.J., Troiani, H., Granada, M., de Miguel, S.R., Scelza, O.A., Corti, H.R.
Format: Article
Language:English
Subjects:
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c434t-c67be2a8d5d21d7b31e422fcc3d6f46a34c56f1c92e7e229289309922a6472043
cites
container_end_page 8203
container_issue 19
container_start_page 8193
container_title International journal of hydrogen energy
container_volume 34
creator Nores-Pondal, F.J.
Vilella, I.M.J.
Troiani, H.
Granada, M.
de Miguel, S.R.
Scelza, O.A.
Corti, H.R.
description In this work nanoparticulated platinum catalysts have been prepared on carbon Vulcan XC-72 using three methods starting with chloroplatinic acid as a precursor: (i) formic acid as a reductor agent; (ii) impregnation method followed by reduction in hydrogen atmosphere at moderated temperature; and (iii) microwave-assisted reduction in ethylene glycol. The catalytic and size studies were also performed on a commercial Pt catalyst (E-Tek, De Nora). The characterization of the particle size and distribution was performed by means of transmission electron microscopy (TEM) and X-ray diffraction (XRD). The characterizations of the catalytic and electrocatalytic properties of the catalysts were determined by studying the cyclohexane dehydrogenation reaction (CHD) and the behavior under cyclic voltammetry (CV) in sulfuric acid solutions. The measured electrochemical activity, along with the hydrogen chemisorption of the catalysts allows the estimation of effective particle sizes, which are much larger than those measured by TEM and XRD. The catalysts prepared by reduction with formic acid and ethylene glycol (microwave-assisted) show electrochemical activities very close to those of the commercial catalyst, and are almost insensitive to the Pt dispersion or Pt particle size. The chemical activity in CHD correlates well with the metallic dispersion determined by hydrogen chemisorption, indicating similar accesibility of H 2 and cyclohexane to the catalyst surface.
doi_str_mv 10.1016/j.ijhydene.2009.07.073
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1671283850</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0360319909011872</els_id><sourcerecordid>1671283850</sourcerecordid><originalsourceid>FETCH-LOGICAL-c434t-c67be2a8d5d21d7b31e422fcc3d6f46a34c56f1c92e7e229289309922a6472043</originalsourceid><addsrcrecordid>eNqFkM2LFDEQxYMoOO7uv7Dk6KXbfE3SuSnD-gG7rAc9h3Slwmbs6W6TzEAv-L_b4-hZKHh1eL9H1SPklrOWM67f7du0f1oCjtgKxmzLzDryBdnwzthGqs68JBsmNWskt_Y1eVPKnjFumLIb8mvnqx-WmoB6qOmU6kJPpaUlPSOFKWccfE3TSNNI5_M6Hg8U_jClFjpF-vXugcYjDhRwGAqdM84-Y6ArAz73q_SDhx-0X2hIMWLGsdID1qcplGvyKvqh4M1fvSLfP959231u7h8_fdl9uG9ASVUb0KZH4buwDYIH00uOSogIIIOOSnupYKsjByvQoBBWdFYya4XwWhnBlLwiby-5c55-HrFUd0jlfK8fcToWx7XhopPdlq1WfbFCnkrJGN2c08HnxXHmzn27vfvXtzv37ZhZR67g-wuI6yOnhNkVSDgChpQRqgtT-l_EbwIbjmk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1671283850</pqid></control><display><type>article</type><title>Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods</title><source>ScienceDirect Freedom Collection 2022-2024</source><creator>Nores-Pondal, F.J. ; Vilella, I.M.J. ; Troiani, H. ; Granada, M. ; de Miguel, S.R. ; Scelza, O.A. ; Corti, H.R.</creator><creatorcontrib>Nores-Pondal, F.J. ; Vilella, I.M.J. ; Troiani, H. ; Granada, M. ; de Miguel, S.R. ; Scelza, O.A. ; Corti, H.R.</creatorcontrib><description>In this work nanoparticulated platinum catalysts have been prepared on carbon Vulcan XC-72 using three methods starting with chloroplatinic acid as a precursor: (i) formic acid as a reductor agent; (ii) impregnation method followed by reduction in hydrogen atmosphere at moderated temperature; and (iii) microwave-assisted reduction in ethylene glycol. The catalytic and size studies were also performed on a commercial Pt catalyst (E-Tek, De Nora). The characterization of the particle size and distribution was performed by means of transmission electron microscopy (TEM) and X-ray diffraction (XRD). The characterizations of the catalytic and electrocatalytic properties of the catalysts were determined by studying the cyclohexane dehydrogenation reaction (CHD) and the behavior under cyclic voltammetry (CV) in sulfuric acid solutions. The measured electrochemical activity, along with the hydrogen chemisorption of the catalysts allows the estimation of effective particle sizes, which are much larger than those measured by TEM and XRD. The catalysts prepared by reduction with formic acid and ethylene glycol (microwave-assisted) show electrochemical activities very close to those of the commercial catalyst, and are almost insensitive to the Pt dispersion or Pt particle size. The chemical activity in CHD correlates well with the metallic dispersion determined by hydrogen chemisorption, indicating similar accesibility of H 2 and cyclohexane to the catalyst surface.</description><identifier>ISSN: 0360-3199</identifier><identifier>EISSN: 1879-3487</identifier><identifier>DOI: 10.1016/j.ijhydene.2009.07.073</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Catalysis ; Catalysts ; Chemisorption ; Dispersion ; Hydrogen storage ; Nanostructure ; PEM fuel cell ; Platinum ; Pt catalysts ; Reduction ; Size effect ; Surface chemistry ; Vulcan XC-72</subject><ispartof>International journal of hydrogen energy, 2009-10, Vol.34 (19), p.8193-8203</ispartof><rights>2009 Professor T. Nejat Veziroglu</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-c67be2a8d5d21d7b31e422fcc3d6f46a34c56f1c92e7e229289309922a6472043</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Nores-Pondal, F.J.</creatorcontrib><creatorcontrib>Vilella, I.M.J.</creatorcontrib><creatorcontrib>Troiani, H.</creatorcontrib><creatorcontrib>Granada, M.</creatorcontrib><creatorcontrib>de Miguel, S.R.</creatorcontrib><creatorcontrib>Scelza, O.A.</creatorcontrib><creatorcontrib>Corti, H.R.</creatorcontrib><title>Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods</title><title>International journal of hydrogen energy</title><description>In this work nanoparticulated platinum catalysts have been prepared on carbon Vulcan XC-72 using three methods starting with chloroplatinic acid as a precursor: (i) formic acid as a reductor agent; (ii) impregnation method followed by reduction in hydrogen atmosphere at moderated temperature; and (iii) microwave-assisted reduction in ethylene glycol. The catalytic and size studies were also performed on a commercial Pt catalyst (E-Tek, De Nora). The characterization of the particle size and distribution was performed by means of transmission electron microscopy (TEM) and X-ray diffraction (XRD). The characterizations of the catalytic and electrocatalytic properties of the catalysts were determined by studying the cyclohexane dehydrogenation reaction (CHD) and the behavior under cyclic voltammetry (CV) in sulfuric acid solutions. The measured electrochemical activity, along with the hydrogen chemisorption of the catalysts allows the estimation of effective particle sizes, which are much larger than those measured by TEM and XRD. The catalysts prepared by reduction with formic acid and ethylene glycol (microwave-assisted) show electrochemical activities very close to those of the commercial catalyst, and are almost insensitive to the Pt dispersion or Pt particle size. The chemical activity in CHD correlates well with the metallic dispersion determined by hydrogen chemisorption, indicating similar accesibility of H 2 and cyclohexane to the catalyst surface.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>Chemisorption</subject><subject>Dispersion</subject><subject>Hydrogen storage</subject><subject>Nanostructure</subject><subject>PEM fuel cell</subject><subject>Platinum</subject><subject>Pt catalysts</subject><subject>Reduction</subject><subject>Size effect</subject><subject>Surface chemistry</subject><subject>Vulcan XC-72</subject><issn>0360-3199</issn><issn>1879-3487</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkM2LFDEQxYMoOO7uv7Dk6KXbfE3SuSnD-gG7rAc9h3Slwmbs6W6TzEAv-L_b4-hZKHh1eL9H1SPklrOWM67f7du0f1oCjtgKxmzLzDryBdnwzthGqs68JBsmNWskt_Y1eVPKnjFumLIb8mvnqx-WmoB6qOmU6kJPpaUlPSOFKWccfE3TSNNI5_M6Hg8U_jClFjpF-vXugcYjDhRwGAqdM84-Y6ArAz73q_SDhx-0X2hIMWLGsdID1qcplGvyKvqh4M1fvSLfP959231u7h8_fdl9uG9ASVUb0KZH4buwDYIH00uOSogIIIOOSnupYKsjByvQoBBWdFYya4XwWhnBlLwiby-5c55-HrFUd0jlfK8fcToWx7XhopPdlq1WfbFCnkrJGN2c08HnxXHmzn27vfvXtzv37ZhZR67g-wuI6yOnhNkVSDgChpQRqgtT-l_EbwIbjmk</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Nores-Pondal, F.J.</creator><creator>Vilella, I.M.J.</creator><creator>Troiani, H.</creator><creator>Granada, M.</creator><creator>de Miguel, S.R.</creator><creator>Scelza, O.A.</creator><creator>Corti, H.R.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20091001</creationdate><title>Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods</title><author>Nores-Pondal, F.J. ; Vilella, I.M.J. ; Troiani, H. ; Granada, M. ; de Miguel, S.R. ; Scelza, O.A. ; Corti, H.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c434t-c67be2a8d5d21d7b31e422fcc3d6f46a34c56f1c92e7e229289309922a6472043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Catalysis</topic><topic>Catalysts</topic><topic>Chemisorption</topic><topic>Dispersion</topic><topic>Hydrogen storage</topic><topic>Nanostructure</topic><topic>PEM fuel cell</topic><topic>Platinum</topic><topic>Pt catalysts</topic><topic>Reduction</topic><topic>Size effect</topic><topic>Surface chemistry</topic><topic>Vulcan XC-72</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nores-Pondal, F.J.</creatorcontrib><creatorcontrib>Vilella, I.M.J.</creatorcontrib><creatorcontrib>Troiani, H.</creatorcontrib><creatorcontrib>Granada, M.</creatorcontrib><creatorcontrib>de Miguel, S.R.</creatorcontrib><creatorcontrib>Scelza, O.A.</creatorcontrib><creatorcontrib>Corti, H.R.</creatorcontrib><collection>CrossRef</collection><collection>Electronics &amp; Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>International journal of hydrogen energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nores-Pondal, F.J.</au><au>Vilella, I.M.J.</au><au>Troiani, H.</au><au>Granada, M.</au><au>de Miguel, S.R.</au><au>Scelza, O.A.</au><au>Corti, H.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods</atitle><jtitle>International journal of hydrogen energy</jtitle><date>2009-10-01</date><risdate>2009</risdate><volume>34</volume><issue>19</issue><spage>8193</spage><epage>8203</epage><pages>8193-8203</pages><issn>0360-3199</issn><eissn>1879-3487</eissn><abstract>In this work nanoparticulated platinum catalysts have been prepared on carbon Vulcan XC-72 using three methods starting with chloroplatinic acid as a precursor: (i) formic acid as a reductor agent; (ii) impregnation method followed by reduction in hydrogen atmosphere at moderated temperature; and (iii) microwave-assisted reduction in ethylene glycol. The catalytic and size studies were also performed on a commercial Pt catalyst (E-Tek, De Nora). The characterization of the particle size and distribution was performed by means of transmission electron microscopy (TEM) and X-ray diffraction (XRD). The characterizations of the catalytic and electrocatalytic properties of the catalysts were determined by studying the cyclohexane dehydrogenation reaction (CHD) and the behavior under cyclic voltammetry (CV) in sulfuric acid solutions. The measured electrochemical activity, along with the hydrogen chemisorption of the catalysts allows the estimation of effective particle sizes, which are much larger than those measured by TEM and XRD. The catalysts prepared by reduction with formic acid and ethylene glycol (microwave-assisted) show electrochemical activities very close to those of the commercial catalyst, and are almost insensitive to the Pt dispersion or Pt particle size. The chemical activity in CHD correlates well with the metallic dispersion determined by hydrogen chemisorption, indicating similar accesibility of H 2 and cyclohexane to the catalyst surface.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ijhydene.2009.07.073</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0360-3199
ispartof International journal of hydrogen energy, 2009-10, Vol.34 (19), p.8193-8203
issn 0360-3199
1879-3487
language eng
recordid cdi_proquest_miscellaneous_1671283850
source ScienceDirect Freedom Collection 2022-2024
subjects Catalysis
Catalysts
Chemisorption
Dispersion
Hydrogen storage
Nanostructure
PEM fuel cell
Platinum
Pt catalysts
Reduction
Size effect
Surface chemistry
Vulcan XC-72
title Catalytic activity vs. size correlation in platinum catalysts of PEM fuel cells prepared on carbon black by different methods
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T10%3A04%3A41IST&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=Catalytic%20activity%20vs.%20size%20correlation%20in%20platinum%20catalysts%20of%20PEM%20fuel%20cells%20prepared%20on%20carbon%20black%20by%20different%20methods&rft.jtitle=International%20journal%20of%20hydrogen%20energy&rft.au=Nores-Pondal,%20F.J.&rft.date=2009-10-01&rft.volume=34&rft.issue=19&rft.spage=8193&rft.epage=8203&rft.pages=8193-8203&rft.issn=0360-3199&rft.eissn=1879-3487&rft_id=info:doi/10.1016/j.ijhydene.2009.07.073&rft_dat=%3Cproquest_cross%3E1671283850%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c434t-c67be2a8d5d21d7b31e422fcc3d6f46a34c56f1c92e7e229289309922a6472043%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1671283850&rft_id=info:pmid/&rfr_iscdi=true