Low-temperature ozone treatment for carbon nanotube template removal: improving the template-based ALD method
This work addresses the production of stand-alone ceramic nanotubes by the template-based ALD method at low temperature. Nitrogen-doped multiwalled carbon nanotubes (CNTs) were coated with ZnO. Afterward, the template removal was evaluated by two different approaches: using oxidation in dry air or i...
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| Veröffentlicht in: | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2018-09, Vol.20 (9), p.1-10, Article 246 |
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| creator | Dominguez, D. Romo-Herrera, J. M. Solorio, F. Borbón-Núñez, H. A. Landeros, M. Díaz de León, J. N. Contreras, E. Contreras, O. E. Olivas, A. Reynoso-Soto, E. A. Tiznado, H. Soto, G. |
| description | This work addresses the production of stand-alone ceramic nanotubes by the template-based ALD method at low temperature. Nitrogen-doped multiwalled carbon nanotubes (CNTs) were coated with ZnO. Afterward, the template removal was evaluated by two different approaches: using oxidation in dry air or in an ozone-rich atmosphere. The samples treated by the two different methods were analyzed by XRD, TEM, SAED, and Raman spectroscopy. The dry air atmosphere requires high temperatures (~ 700 °C) for a complete CNT removal; at that temperature, the ZnO tubular shape is completely collapsed due to recrystallization. Under ozone atmosphere, the template can be removed at temperatures as low as 85 °C; this temperature is lower than the ALD preparation temperature (120 °C). The ozone treatment maintains the tubular shape of the ZnO nanostructures. Photocatalytic activity of the ZnO samples was evaluated using the photo-oxidation of Amaranth as probe reaction, showing a higher activity the ZnO nanotubes obtained from the low-temperature ozone treatment than the high-temperature processed materials. The use of ozone for the template removal reinforces the template-based ALD method to produce inorganic nanotubes. |
| doi_str_mv | 10.1007/s11051-018-4348-6 |
| format | Article |
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M. ; Solorio, F. ; Borbón-Núñez, H. A. ; Landeros, M. ; Díaz de León, J. N. ; Contreras, E. ; Contreras, O. E. ; Olivas, A. ; Reynoso-Soto, E. A. ; Tiznado, H. ; Soto, G.</creator><creatorcontrib>Dominguez, D. ; Romo-Herrera, J. M. ; Solorio, F. ; Borbón-Núñez, H. A. ; Landeros, M. ; Díaz de León, J. N. ; Contreras, E. ; Contreras, O. E. ; Olivas, A. ; Reynoso-Soto, E. A. ; Tiznado, H. ; Soto, G.</creatorcontrib><description>This work addresses the production of stand-alone ceramic nanotubes by the template-based ALD method at low temperature. Nitrogen-doped multiwalled carbon nanotubes (CNTs) were coated with ZnO. Afterward, the template removal was evaluated by two different approaches: using oxidation in dry air or in an ozone-rich atmosphere. The samples treated by the two different methods were analyzed by XRD, TEM, SAED, and Raman spectroscopy. The dry air atmosphere requires high temperatures (~ 700 °C) for a complete CNT removal; at that temperature, the ZnO tubular shape is completely collapsed due to recrystallization. Under ozone atmosphere, the template can be removed at temperatures as low as 85 °C; this temperature is lower than the ALD preparation temperature (120 °C). The ozone treatment maintains the tubular shape of the ZnO nanostructures. Photocatalytic activity of the ZnO samples was evaluated using the photo-oxidation of Amaranth as probe reaction, showing a higher activity the ZnO nanotubes obtained from the low-temperature ozone treatment than the high-temperature processed materials. The use of ozone for the template removal reinforces the template-based ALD method to produce inorganic nanotubes.</description><identifier>ISSN: 1388-0764</identifier><identifier>EISSN: 1572-896X</identifier><identifier>DOI: 10.1007/s11051-018-4348-6</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Amaranth ; Atmosphere ; Catalytic activity ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; High temperature ; Inorganic Chemistry ; Lasers ; Low temperature ; Materials Science ; Multi wall carbon nanotubes ; Nanoparticles ; Nanotechnology ; Nanotubes ; Optical Devices ; Optics ; Oxidation ; Ozonation ; Ozone ; Photocatalysis ; Photonics ; Photooxidation ; Physical Chemistry ; Raman spectroscopy ; Recrystallization ; Research Paper ; Temperature ; Temperature effects ; Zinc oxide</subject><ispartof>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2018-09, Vol.20 (9), p.1-10, Article 246</ispartof><rights>Springer Nature B.V. 2018</rights><rights>Journal of Nanoparticle Research is a copyright of Springer, (2018). All Rights Reserved.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-6d8f02709d872b701ac60ba2cafb795771cbe2ec0fe750c08a84dea640a715ff3</citedby><cites>FETCH-LOGICAL-c316t-6d8f02709d872b701ac60ba2cafb795771cbe2ec0fe750c08a84dea640a715ff3</cites><orcidid>0000-0002-0982-4191</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11051-018-4348-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11051-018-4348-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Dominguez, D.</creatorcontrib><creatorcontrib>Romo-Herrera, J. M.</creatorcontrib><creatorcontrib>Solorio, F.</creatorcontrib><creatorcontrib>Borbón-Núñez, H. 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Afterward, the template removal was evaluated by two different approaches: using oxidation in dry air or in an ozone-rich atmosphere. The samples treated by the two different methods were analyzed by XRD, TEM, SAED, and Raman spectroscopy. The dry air atmosphere requires high temperatures (~ 700 °C) for a complete CNT removal; at that temperature, the ZnO tubular shape is completely collapsed due to recrystallization. Under ozone atmosphere, the template can be removed at temperatures as low as 85 °C; this temperature is lower than the ALD preparation temperature (120 °C). The ozone treatment maintains the tubular shape of the ZnO nanostructures. Photocatalytic activity of the ZnO samples was evaluated using the photo-oxidation of Amaranth as probe reaction, showing a higher activity the ZnO nanotubes obtained from the low-temperature ozone treatment than the high-temperature processed materials. The use of ozone for the template removal reinforces the template-based ALD method to produce inorganic nanotubes.</description><subject>Amaranth</subject><subject>Atmosphere</subject><subject>Catalytic activity</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>High temperature</subject><subject>Inorganic Chemistry</subject><subject>Lasers</subject><subject>Low temperature</subject><subject>Materials Science</subject><subject>Multi wall carbon nanotubes</subject><subject>Nanoparticles</subject><subject>Nanotechnology</subject><subject>Nanotubes</subject><subject>Optical Devices</subject><subject>Optics</subject><subject>Oxidation</subject><subject>Ozonation</subject><subject>Ozone</subject><subject>Photocatalysis</subject><subject>Photonics</subject><subject>Photooxidation</subject><subject>Physical Chemistry</subject><subject>Raman spectroscopy</subject><subject>Recrystallization</subject><subject>Research Paper</subject><subject>Temperature</subject><subject>Temperature effects</subject><subject>Zinc oxide</subject><issn>1388-0764</issn><issn>1572-896X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kM1LxDAQxYsouK7-Ad4CnqOTtE1Sb8v6CQteFLyFtJ3sB9tmTdIV_evNUsGTpxl4v_dmeFl2yeCaAcibwBiUjAJTtMgLRcVRNmGl5FRV4v047blSFKQoTrOzEDYATPCKT7Ju4T5pxG6H3sTBI3HfrkcSPZrYYR-JdZ40xteuJ73pXRzqpCZ-ayISj53bm-0tWXc77_brfkni6k-ntQnYktnijnQYV649z06s2Qa8-J3T7O3h_nX-RBcvj8_z2YI2ORORilZZ4BKqVkleS2CmEVAb3hhby6qUkjU1cmzAoiyhAWVU0aIRBRjJSmvzaXY15qavPgYMUW_c4Pt0UnMGeSEKkYtEsZFqvAvBo9U7v-6M_9IM9KFVPbaqU6v60Ko-ePjoCYntl-j_kv83_QAHDHxF</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Dominguez, D.</creator><creator>Romo-Herrera, J. 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M.</au><au>Solorio, F.</au><au>Borbón-Núñez, H. A.</au><au>Landeros, M.</au><au>Díaz de León, J. N.</au><au>Contreras, E.</au><au>Contreras, O. E.</au><au>Olivas, A.</au><au>Reynoso-Soto, E. A.</au><au>Tiznado, H.</au><au>Soto, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-temperature ozone treatment for carbon nanotube template removal: improving the template-based ALD method</atitle><jtitle>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</jtitle><stitle>J Nanopart Res</stitle><date>2018-09-01</date><risdate>2018</risdate><volume>20</volume><issue>9</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><artnum>246</artnum><issn>1388-0764</issn><eissn>1572-896X</eissn><abstract>This work addresses the production of stand-alone ceramic nanotubes by the template-based ALD method at low temperature. Nitrogen-doped multiwalled carbon nanotubes (CNTs) were coated with ZnO. Afterward, the template removal was evaluated by two different approaches: using oxidation in dry air or in an ozone-rich atmosphere. The samples treated by the two different methods were analyzed by XRD, TEM, SAED, and Raman spectroscopy. The dry air atmosphere requires high temperatures (~ 700 °C) for a complete CNT removal; at that temperature, the ZnO tubular shape is completely collapsed due to recrystallization. Under ozone atmosphere, the template can be removed at temperatures as low as 85 °C; this temperature is lower than the ALD preparation temperature (120 °C). The ozone treatment maintains the tubular shape of the ZnO nanostructures. Photocatalytic activity of the ZnO samples was evaluated using the photo-oxidation of Amaranth as probe reaction, showing a higher activity the ZnO nanotubes obtained from the low-temperature ozone treatment than the high-temperature processed materials. The use of ozone for the template removal reinforces the template-based ALD method to produce inorganic nanotubes.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11051-018-4348-6</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-0982-4191</orcidid></addata></record> |
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| subjects | Amaranth Atmosphere Catalytic activity Characterization and Evaluation of Materials Chemistry and Materials Science High temperature Inorganic Chemistry Lasers Low temperature Materials Science Multi wall carbon nanotubes Nanoparticles Nanotechnology Nanotubes Optical Devices Optics Oxidation Ozonation Ozone Photocatalysis Photonics Photooxidation Physical Chemistry Raman spectroscopy Recrystallization Research Paper Temperature Temperature effects Zinc oxide |
| title | Low-temperature ozone treatment for carbon nanotube template removal: improving the template-based ALD method |
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