From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint
Herein, we report the successful use of newspaper as a substrate for the growth of single-walled carbon nanotubes (SWCNTs) by chemical vapor deposition (CVD) with intriguing results demonstrating that (a) the large surface area of newspaper stock allows for SWCNT growth and (b) only newspaper produc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | C |
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| Online Access: | https://www.mdpi.com/2311-5629/5/4/66 |
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| author | Bruce E. Brinson Varun Shenoy Gangoli Anjli Kumar Robert H. Hauge W. Wade Adams Andrew R. Barron |
| author_facet | Bruce E. Brinson Varun Shenoy Gangoli Anjli Kumar Robert H. Hauge W. Wade Adams Andrew R. Barron |
| author_sort | Bruce E. Brinson |
| collection | DOAJ |
| description | Herein, we report the successful use of newspaper as a substrate for the growth of single-walled carbon nanotubes (SWCNTs) by chemical vapor deposition (CVD) with intriguing results demonstrating that (a) the large surface area of newspaper stock allows for SWCNT growth and (b) only newspaper produced with kaolin clay sizing allowed for SWCNT growth. Kaolin newsprint was impregnated with Al<sub>2</sub>O<sub>3</sub> and Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O (as precursors to Fe<sub>x</sub>O<sub>y</sub> nanoparticles), and calcined (30 min at 400 °C). The subsequent char residue was loaded into a CVD chamber and used as a substrate for SWCNT growth at 750 °C, using H<sub>2</sub>, C<sub>2</sub>H<sub>2</sub>, and water vapor as the growth gas. Samples of raw carbon soot exhibiting fluorescence spectra, indicative of SWCNTs, were further evaluated by resonant Raman spectroscopy, and by transmission electron microscopy (TEM). The calcinated substrate remnants were evaluated by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Experiments utilizing paper substrates produced with kaolin filler resulted in hybridized sp<sup>2</sup>−sp<sup>3</sup> bonded carbon species. The soot was found to consist primarily of carbon nanotubes and bi-layer graphene in the form of collapsed nanotubes, also known as graphene nanoribbons (GNR). |
| first_indexed | 2024-12-19T04:01:34Z |
| format | Article |
| id | doaj.art-a56366630b7844c2a12e94092fb88d98 |
| institution | Directory Open Access Journal |
| issn | 2311-5629 |
| language | English |
| last_indexed | 2024-12-19T04:01:34Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | C |
| spelling | doaj.art-a56366630b7844c2a12e94092fb88d982022-12-21T20:36:40ZengMDPI AGC2311-56292019-10-01546610.3390/c5040066c5040066From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized NewsprintBruce E. Brinson0Varun Shenoy Gangoli1Anjli Kumar2Robert H. Hauge3W. Wade Adams4Andrew R. Barron5Department of Chemistry, Rice University, Houston, TX 77005, USADepartment of Chemistry, Rice University, Houston, TX 77005, USADepartment of Materials Science and Nanoengineering, Rice University, Houston, TX 77005, USADepartment of Chemistry, Rice University, Houston, TX 77005, USADepartment of Materials Science and Nanoengineering, Rice University, Houston, TX 77005, USADepartment of Chemistry, Rice University, Houston, TX 77005, USAHerein, we report the successful use of newspaper as a substrate for the growth of single-walled carbon nanotubes (SWCNTs) by chemical vapor deposition (CVD) with intriguing results demonstrating that (a) the large surface area of newspaper stock allows for SWCNT growth and (b) only newspaper produced with kaolin clay sizing allowed for SWCNT growth. Kaolin newsprint was impregnated with Al<sub>2</sub>O<sub>3</sub> and Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O (as precursors to Fe<sub>x</sub>O<sub>y</sub> nanoparticles), and calcined (30 min at 400 °C). The subsequent char residue was loaded into a CVD chamber and used as a substrate for SWCNT growth at 750 °C, using H<sub>2</sub>, C<sub>2</sub>H<sub>2</sub>, and water vapor as the growth gas. Samples of raw carbon soot exhibiting fluorescence spectra, indicative of SWCNTs, were further evaluated by resonant Raman spectroscopy, and by transmission electron microscopy (TEM). The calcinated substrate remnants were evaluated by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). Experiments utilizing paper substrates produced with kaolin filler resulted in hybridized sp<sup>2</sup>−sp<sup>3</sup> bonded carbon species. The soot was found to consist primarily of carbon nanotubes and bi-layer graphene in the form of collapsed nanotubes, also known as graphene nanoribbons (GNR).https://www.mdpi.com/2311-5629/5/4/66carboncarbon nanotubecircular economycarbon recyclinggreen manufacturing |
| spellingShingle | Bruce E. Brinson Varun Shenoy Gangoli Anjli Kumar Robert H. Hauge W. Wade Adams Andrew R. Barron From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint C carbon carbon nanotube circular economy carbon recycling green manufacturing |
| title | From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint |
| title_full | From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint |
| title_fullStr | From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint |
| title_full_unstemmed | From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint |
| title_short | From Newspaper Substrate to Nanotubes—Analysis of Carbonized Soot Grown on Kaolin Sized Newsprint |
| title_sort | from newspaper substrate to nanotubes analysis of carbonized soot grown on kaolin sized newsprint |
| topic | carbon carbon nanotube circular economy carbon recycling green manufacturing |
| url | https://www.mdpi.com/2311-5629/5/4/66 |
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