Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes
A novel CO2 sensor was made by carbon nanotubes (CNTs). The CNTs were synthesized by catalystic thermal chemical vapour deposition at 700 deg C. Prior to the synthesis, the Fe catalysts were pretreated by H2 plasma for different times. Two terminal resistance of the as-grown CNTs mat was measured un...
Gespeichert in:
| Veröffentlicht in: | Diamond and related materials 2008-04, Vol.17 (4-5), p.624-627 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 627 |
|---|---|
| container_issue | 4-5 |
| container_start_page | 624 |
| container_title | Diamond and related materials |
| container_volume | 17 |
| creator | HUANG, C. S HUANG, B. R HSIAO, C. H YEH, C. Y HUANG, C. C JANG, Y. H |
| description | A novel CO2 sensor was made by carbon nanotubes (CNTs). The CNTs were synthesized by catalystic thermal chemical vapour deposition at 700 deg C. Prior to the synthesis, the Fe catalysts were pretreated by H2 plasma for different times. Two terminal resistance of the as-grown CNTs mat was measured under different CO2 concentrations. It was found that without the catalyst pretreatment, the sensitivity was about 4% when the CNTs mat was exposed to 800 mTorr CO2 concentration. However, with various catalyst pretreatment times of 5, 10, 15 and 20 min, the sensitivity was 3.69%, 6.27%, 9.54%, and 12.1%, respectively. The Raman spectroscopy showed the ID/IG decreased from 0.668 to 0.539 as the catalyst pretreatment time increased. The XPS also showed the correlation of surface chemical components with the Raman spectroscopy. The Fe catalyst H2 plasma pretreatment affected both the graphitization and surface binding sites of CNTs. |
| doi_str_mv | 10.1016/j.diamond.2007.08.039 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_32824991</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>32824991</sourcerecordid><originalsourceid>FETCH-LOGICAL-c380t-698d6468405d646d679cbccb0e98517052a325134b0323209f6bae9137f840633</originalsourceid><addsrcrecordid>eNo9kD1PwzAURS0EEqXwE5C8wJbwbCeOPaKqfEiVusBsOY4jUiV28XOH_ntStWK6w7vnPukQ8sigZMDky67sBjvF0JUcoClBlSD0FVkw1egCQPJrsgDN60JLUd-SO8QdAOO6YguyWfe9dxlp7Gn-8dTZbMcjZrpPPidv8-RDpjHQ1ZZT9AFjQjrZztP2OJdTO5-CDTEfWo_35Ka3I_qHSy7J99v6a_VRbLbvn6vXTeGEglxIrTpZSVVBfcpONtq1zrXgtapZAzW3gtdMVC0ILjjoXrbWayaafmakEEvyfN7dp_h78JjNNKDz42iDjwc0gite6RlYkvpcdCkiJt-bfRomm46GgTm5MztzcWdO7gwoM7ubuafLA4vOjn2ywQ34D_O5oxqmxB-1o3BM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>32824991</pqid></control><display><type>article</type><title>Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes</title><source>Elsevier ScienceDirect Journals</source><creator>HUANG, C. S ; HUANG, B. R ; HSIAO, C. H ; YEH, C. Y ; HUANG, C. C ; JANG, Y. H</creator><creatorcontrib>HUANG, C. S ; HUANG, B. R ; HSIAO, C. H ; YEH, C. Y ; HUANG, C. C ; JANG, Y. H</creatorcontrib><description>A novel CO2 sensor was made by carbon nanotubes (CNTs). The CNTs were synthesized by catalystic thermal chemical vapour deposition at 700 deg C. Prior to the synthesis, the Fe catalysts were pretreated by H2 plasma for different times. Two terminal resistance of the as-grown CNTs mat was measured under different CO2 concentrations. It was found that without the catalyst pretreatment, the sensitivity was about 4% when the CNTs mat was exposed to 800 mTorr CO2 concentration. However, with various catalyst pretreatment times of 5, 10, 15 and 20 min, the sensitivity was 3.69%, 6.27%, 9.54%, and 12.1%, respectively. The Raman spectroscopy showed the ID/IG decreased from 0.668 to 0.539 as the catalyst pretreatment time increased. The XPS also showed the correlation of surface chemical components with the Raman spectroscopy. The Fe catalyst H2 plasma pretreatment affected both the graphitization and surface binding sites of CNTs.</description><identifier>ISSN: 0925-9635</identifier><identifier>EISSN: 1879-0062</identifier><identifier>DOI: 10.1016/j.diamond.2007.08.039</identifier><language>eng</language><publisher>Amsterdam: Elsevier</publisher><subject>Catalytic methods ; Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.) ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; General equipment and techniques ; Instruments, apparatus, components and techniques common to several branches of physics and astronomy ; Materials science ; Methods of deposition of films and coatings; film growth and epitaxy ; Methods of nanofabrication ; Nanoscale materials and structures: fabrication and characterization ; Nanotubes ; Physics ; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</subject><ispartof>Diamond and related materials, 2008-04, Vol.17 (4-5), p.624-627</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-698d6468405d646d679cbccb0e98517052a325134b0323209f6bae9137f840633</citedby><cites>FETCH-LOGICAL-c380t-698d6468405d646d679cbccb0e98517052a325134b0323209f6bae9137f840633</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,776,780,785,786,23909,23910,25118,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20398718$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>HUANG, C. S</creatorcontrib><creatorcontrib>HUANG, B. R</creatorcontrib><creatorcontrib>HSIAO, C. H</creatorcontrib><creatorcontrib>YEH, C. Y</creatorcontrib><creatorcontrib>HUANG, C. C</creatorcontrib><creatorcontrib>JANG, Y. H</creatorcontrib><title>Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes</title><title>Diamond and related materials</title><description>A novel CO2 sensor was made by carbon nanotubes (CNTs). The CNTs were synthesized by catalystic thermal chemical vapour deposition at 700 deg C. Prior to the synthesis, the Fe catalysts were pretreated by H2 plasma for different times. Two terminal resistance of the as-grown CNTs mat was measured under different CO2 concentrations. It was found that without the catalyst pretreatment, the sensitivity was about 4% when the CNTs mat was exposed to 800 mTorr CO2 concentration. However, with various catalyst pretreatment times of 5, 10, 15 and 20 min, the sensitivity was 3.69%, 6.27%, 9.54%, and 12.1%, respectively. The Raman spectroscopy showed the ID/IG decreased from 0.668 to 0.539 as the catalyst pretreatment time increased. The XPS also showed the correlation of surface chemical components with the Raman spectroscopy. The Fe catalyst H2 plasma pretreatment affected both the graphitization and surface binding sites of CNTs.</description><subject>Catalytic methods</subject><subject>Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.)</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>General equipment and techniques</subject><subject>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</subject><subject>Materials science</subject><subject>Methods of deposition of films and coatings; film growth and epitaxy</subject><subject>Methods of nanofabrication</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Nanotubes</subject><subject>Physics</subject><subject>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</subject><issn>0925-9635</issn><issn>1879-0062</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo9kD1PwzAURS0EEqXwE5C8wJbwbCeOPaKqfEiVusBsOY4jUiV28XOH_ntStWK6w7vnPukQ8sigZMDky67sBjvF0JUcoClBlSD0FVkw1egCQPJrsgDN60JLUd-SO8QdAOO6YguyWfe9dxlp7Gn-8dTZbMcjZrpPPidv8-RDpjHQ1ZZT9AFjQjrZztP2OJdTO5-CDTEfWo_35Ka3I_qHSy7J99v6a_VRbLbvn6vXTeGEglxIrTpZSVVBfcpONtq1zrXgtapZAzW3gtdMVC0ILjjoXrbWayaafmakEEvyfN7dp_h78JjNNKDz42iDjwc0gite6RlYkvpcdCkiJt-bfRomm46GgTm5MztzcWdO7gwoM7ubuafLA4vOjn2ywQ34D_O5oxqmxB-1o3BM</recordid><startdate>20080401</startdate><enddate>20080401</enddate><creator>HUANG, C. S</creator><creator>HUANG, B. R</creator><creator>HSIAO, C. H</creator><creator>YEH, C. Y</creator><creator>HUANG, C. C</creator><creator>JANG, Y. H</creator><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080401</creationdate><title>Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes</title><author>HUANG, C. S ; HUANG, B. R ; HSIAO, C. H ; YEH, C. Y ; HUANG, C. C ; JANG, Y. H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-698d6468405d646d679cbccb0e98517052a325134b0323209f6bae9137f840633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Catalytic methods</topic><topic>Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.)</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>General equipment and techniques</topic><topic>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</topic><topic>Materials science</topic><topic>Methods of deposition of films and coatings; film growth and epitaxy</topic><topic>Methods of nanofabrication</topic><topic>Nanoscale materials and structures: fabrication and characterization</topic><topic>Nanotubes</topic><topic>Physics</topic><topic>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HUANG, C. S</creatorcontrib><creatorcontrib>HUANG, B. R</creatorcontrib><creatorcontrib>HSIAO, C. H</creatorcontrib><creatorcontrib>YEH, C. Y</creatorcontrib><creatorcontrib>HUANG, C. C</creatorcontrib><creatorcontrib>JANG, Y. H</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Diamond and related materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HUANG, C. S</au><au>HUANG, B. R</au><au>HSIAO, C. H</au><au>YEH, C. Y</au><au>HUANG, C. C</au><au>JANG, Y. H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes</atitle><jtitle>Diamond and related materials</jtitle><date>2008-04-01</date><risdate>2008</risdate><volume>17</volume><issue>4-5</issue><spage>624</spage><epage>627</epage><pages>624-627</pages><issn>0925-9635</issn><eissn>1879-0062</eissn><abstract>A novel CO2 sensor was made by carbon nanotubes (CNTs). The CNTs were synthesized by catalystic thermal chemical vapour deposition at 700 deg C. Prior to the synthesis, the Fe catalysts were pretreated by H2 plasma for different times. Two terminal resistance of the as-grown CNTs mat was measured under different CO2 concentrations. It was found that without the catalyst pretreatment, the sensitivity was about 4% when the CNTs mat was exposed to 800 mTorr CO2 concentration. However, with various catalyst pretreatment times of 5, 10, 15 and 20 min, the sensitivity was 3.69%, 6.27%, 9.54%, and 12.1%, respectively. The Raman spectroscopy showed the ID/IG decreased from 0.668 to 0.539 as the catalyst pretreatment time increased. The XPS also showed the correlation of surface chemical components with the Raman spectroscopy. The Fe catalyst H2 plasma pretreatment affected both the graphitization and surface binding sites of CNTs.</abstract><cop>Amsterdam</cop><pub>Elsevier</pub><doi>10.1016/j.diamond.2007.08.039</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-9635 |
| ispartof | Diamond and related materials, 2008-04, Vol.17 (4-5), p.624-627 |
| issn | 0925-9635 1879-0062 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_32824991 |
| source | Elsevier ScienceDirect Journals |
| subjects | Catalytic methods Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.) Cross-disciplinary physics: materials science rheology Exact sciences and technology General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Materials science Methods of deposition of films and coatings film growth and epitaxy Methods of nanofabrication Nanoscale materials and structures: fabrication and characterization Nanotubes Physics Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing |
| title | Effects of the catalyst pretreatment on CO2 sensors made by carbon nanotubes |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T21%3A18%3A54IST&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=Effects%20of%20the%20catalyst%20pretreatment%20on%20CO2%20sensors%20made%20by%20carbon%20nanotubes&rft.jtitle=Diamond%20and%20related%20materials&rft.au=HUANG,%20C.%20S&rft.date=2008-04-01&rft.volume=17&rft.issue=4-5&rft.spage=624&rft.epage=627&rft.pages=624-627&rft.issn=0925-9635&rft.eissn=1879-0062&rft_id=info:doi/10.1016/j.diamond.2007.08.039&rft_dat=%3Cproquest_cross%3E32824991%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=32824991&rft_id=info:pmid/&rfr_iscdi=true |