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Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts
Highly concentrated hydrogen and carbon nanofibers were produced through methane decomposition in a temperature range of 973–1123 K. Pd-based alloys containing Ni, Co, Rh, or Fe showed high catalytic activity and long life for methane decomposition at 973 K. In particular, Pd–Co/Al 2O 3 and Pd–Ni/Al...
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Published in: | Journal of catalysis 2006-03, Vol.238 (2), p.353-360 |
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container_title | Journal of catalysis |
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creator | Ogihara, Hitoshi Takenaka, Sakae Yamanaka, Ichiro Tanabe, Eishi Genseki, Akira Otsuka, Kiyoshi |
description | Highly concentrated hydrogen and carbon nanofibers were produced through methane decomposition in a temperature range of 973–1123 K. Pd-based alloys containing Ni, Co, Rh, or Fe showed high catalytic activity and long life for methane decomposition at 973 K. In particular, Pd–Co/Al
2O
3 and Pd–Ni/Al
2O
3 showed the highest hydrogen yield at reaction temperatures above 973 K among all the catalysts tested. Highly concentrated hydrogen (
>
94
vol%
) was formed by methane decomposition over Pd–Co/Al
2O
3 at 1123 K. SEM images of catalysts [M/Al
2O
3 (M
=
Fe, Co, Ni, and Pd) and Pd–M/Al
2O
3 (M
=
Fe, Co, Ni, Cu, Ag, and Rh)] after methane decomposition showed the formation of carbons with fibrous structure. In addition, TEM images of Pd–Co/Al
2O
3 at the initial stage of reaction showed that Pd–Co alloy particles formed carbons from several facets, whereas Co or Pd metal particles formed carbon nanofibers from one facet. This would be one reason why Pd–Co alloy catalysts showed high activity and long life for methane decomposition at high temperatures. |
doi_str_mv | 10.1016/j.jcat.2005.12.024 |
format | article |
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2O
3 and Pd–Ni/Al
2O
3 showed the highest hydrogen yield at reaction temperatures above 973 K among all the catalysts tested. Highly concentrated hydrogen (
>
94
vol%
) was formed by methane decomposition over Pd–Co/Al
2O
3 at 1123 K. SEM images of catalysts [M/Al
2O
3 (M
=
Fe, Co, Ni, and Pd) and Pd–M/Al
2O
3 (M
=
Fe, Co, Ni, Cu, Ag, and Rh)] after methane decomposition showed the formation of carbons with fibrous structure. In addition, TEM images of Pd–Co/Al
2O
3 at the initial stage of reaction showed that Pd–Co alloy particles formed carbons from several facets, whereas Co or Pd metal particles formed carbon nanofibers from one facet. This would be one reason why Pd–Co alloy catalysts showed high activity and long life for methane decomposition at high temperatures.</description><identifier>ISSN: 0021-9517</identifier><identifier>EISSN: 1090-2694</identifier><identifier>DOI: 10.1016/j.jcat.2005.12.024</identifier><identifier>CODEN: JCTLA5</identifier><language>eng</language><publisher>Amsterdam: Elsevier Inc</publisher><subject>Carbon nanofibers ; Catalysis ; Chemistry ; Exact sciences and technology ; General and physical chemistry ; Pd-based alloy catalysts ; Pd–Co alloys ; Pure hydrogen ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><ispartof>Journal of catalysis, 2006-03, Vol.238 (2), p.353-360</ispartof><rights>2006 Elsevier Inc.</rights><rights>2006 INIST-CNRS</rights><rights>Copyright © 2006 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-cd62749c6e063c8b74ced6294d0e8620ebf9b9bafccba632cda4b2358e8f2ac23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17561500$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ogihara, Hitoshi</creatorcontrib><creatorcontrib>Takenaka, Sakae</creatorcontrib><creatorcontrib>Yamanaka, Ichiro</creatorcontrib><creatorcontrib>Tanabe, Eishi</creatorcontrib><creatorcontrib>Genseki, Akira</creatorcontrib><creatorcontrib>Otsuka, Kiyoshi</creatorcontrib><title>Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts</title><title>Journal of catalysis</title><description>Highly concentrated hydrogen and carbon nanofibers were produced through methane decomposition in a temperature range of 973–1123 K. Pd-based alloys containing Ni, Co, Rh, or Fe showed high catalytic activity and long life for methane decomposition at 973 K. In particular, Pd–Co/Al
2O
3 and Pd–Ni/Al
2O
3 showed the highest hydrogen yield at reaction temperatures above 973 K among all the catalysts tested. Highly concentrated hydrogen (
>
94
vol%
) was formed by methane decomposition over Pd–Co/Al
2O
3 at 1123 K. SEM images of catalysts [M/Al
2O
3 (M
=
Fe, Co, Ni, and Pd) and Pd–M/Al
2O
3 (M
=
Fe, Co, Ni, Cu, Ag, and Rh)] after methane decomposition showed the formation of carbons with fibrous structure. In addition, TEM images of Pd–Co/Al
2O
3 at the initial stage of reaction showed that Pd–Co alloy particles formed carbons from several facets, whereas Co or Pd metal particles formed carbon nanofibers from one facet. This would be one reason why Pd–Co alloy catalysts showed high activity and long life for methane decomposition at high temperatures.</description><subject>Carbon nanofibers</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Pd-based alloy catalysts</subject><subject>Pd–Co alloys</subject><subject>Pure hydrogen</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><issn>0021-9517</issn><issn>1090-2694</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kMFq3DAQhkVpodu0L9CTKfRoZ6SVZBt6KaFpA4HkkJ6FPBqvZbzWVtIG9u2jZQO95TQw_N8_zMfYVw4NB66v52ZGmxsBoBouGhDyHdtw6KEWupfv2QZA8LpXvP3IPqU0A3CuVLdhdBvi3mYf1iqM1eR303KqMKxIa442k6umk4thR2uVpxiOu6naU57sSpUjDPtDSP5CP1OsHl092FQguyyh9Nhsl1PK6TP7MNol0ZfXecX-3v56uvlT3z_8vrv5eV-j1G2u0WnRyh41gd5iN7QSqax66YA6LYCGsR_6wY6Ig9Vbgc7KQWxVR90oLIrtFft26T3E8O9IKZs5HONaThreK6kUgCwhcQlhDClFGs0h-r2NJ8PBnG2a2ZxtmrNNw4UpNgv0_bXZJrTLGO2KPv0nW6V5aS-5H5cclTefPUWT0FPR6XwkzMYF_9aZFwgVjWI</recordid><startdate>20060310</startdate><enddate>20060310</enddate><creator>Ogihara, Hitoshi</creator><creator>Takenaka, Sakae</creator><creator>Yamanaka, Ichiro</creator><creator>Tanabe, Eishi</creator><creator>Genseki, Akira</creator><creator>Otsuka, Kiyoshi</creator><general>Elsevier Inc</general><general>Elsevier</general><general>Elsevier BV</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20060310</creationdate><title>Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts</title><author>Ogihara, Hitoshi ; Takenaka, Sakae ; Yamanaka, Ichiro ; Tanabe, Eishi ; Genseki, Akira ; Otsuka, Kiyoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-cd62749c6e063c8b74ced6294d0e8620ebf9b9bafccba632cda4b2358e8f2ac23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Carbon nanofibers</topic><topic>Catalysis</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Pd-based alloy catalysts</topic><topic>Pd–Co alloys</topic><topic>Pure hydrogen</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ogihara, Hitoshi</creatorcontrib><creatorcontrib>Takenaka, Sakae</creatorcontrib><creatorcontrib>Yamanaka, Ichiro</creatorcontrib><creatorcontrib>Tanabe, Eishi</creatorcontrib><creatorcontrib>Genseki, Akira</creatorcontrib><creatorcontrib>Otsuka, Kiyoshi</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of catalysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ogihara, Hitoshi</au><au>Takenaka, Sakae</au><au>Yamanaka, Ichiro</au><au>Tanabe, Eishi</au><au>Genseki, Akira</au><au>Otsuka, Kiyoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts</atitle><jtitle>Journal of catalysis</jtitle><date>2006-03-10</date><risdate>2006</risdate><volume>238</volume><issue>2</issue><spage>353</spage><epage>360</epage><pages>353-360</pages><issn>0021-9517</issn><eissn>1090-2694</eissn><coden>JCTLA5</coden><abstract>Highly concentrated hydrogen and carbon nanofibers were produced through methane decomposition in a temperature range of 973–1123 K. Pd-based alloys containing Ni, Co, Rh, or Fe showed high catalytic activity and long life for methane decomposition at 973 K. In particular, Pd–Co/Al
2O
3 and Pd–Ni/Al
2O
3 showed the highest hydrogen yield at reaction temperatures above 973 K among all the catalysts tested. Highly concentrated hydrogen (
>
94
vol%
) was formed by methane decomposition over Pd–Co/Al
2O
3 at 1123 K. SEM images of catalysts [M/Al
2O
3 (M
=
Fe, Co, Ni, and Pd) and Pd–M/Al
2O
3 (M
=
Fe, Co, Ni, Cu, Ag, and Rh)] after methane decomposition showed the formation of carbons with fibrous structure. In addition, TEM images of Pd–Co/Al
2O
3 at the initial stage of reaction showed that Pd–Co alloy particles formed carbons from several facets, whereas Co or Pd metal particles formed carbon nanofibers from one facet. This would be one reason why Pd–Co alloy catalysts showed high activity and long life for methane decomposition at high temperatures.</abstract><cop>Amsterdam</cop><pub>Elsevier Inc</pub><doi>10.1016/j.jcat.2005.12.024</doi><tpages>8</tpages></addata></record> |
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subjects | Carbon nanofibers Catalysis Chemistry Exact sciences and technology General and physical chemistry Pd-based alloy catalysts Pd–Co alloys Pure hydrogen Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
title | Formation of highly concentrated hydrogen through methane decomposition over Pd-based alloy catalysts |
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