Flexible carbon nanotube papers with improved thermoelectric properties
Although theoretical calculations indicate that the thermoelectric figure of merit, ZT, of carbon nanotubes (CNTs) could reach >2, the experimentally reported ZT values of CNTs are typically in the range of 10−3–10−2, which is not attractive for thermal energy conversion applications. In this wor...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
|
| Online Access: | https://hdl.handle.net/10356/98089 http://hdl.handle.net/10220/13285 |
| _version_ | 1811696476847341568 |
|---|---|
| author | Zhao, Weiyun Fan, Shufen Xiao, Ni Liu, Dayong Tay, Yee Yan Yu, Cui Sim, Daohao Hng, Huey Hoon Zhang, Qichun Zhang, Hua Boey, Freddy Yin Chiang Yan, Qingyu Ma, Jan Zhao, Xinbing |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Zhao, Weiyun Fan, Shufen Xiao, Ni Liu, Dayong Tay, Yee Yan Yu, Cui Sim, Daohao Hng, Huey Hoon Zhang, Qichun Zhang, Hua Boey, Freddy Yin Chiang Yan, Qingyu Ma, Jan Zhao, Xinbing |
| author_sort | Zhao, Weiyun |
| collection | NTU |
| description | Although theoretical calculations indicate that the thermoelectric figure of merit, ZT, of carbon nanotubes (CNTs) could reach >2, the experimentally reported ZT values of CNTs are typically in the range of 10−3–10−2, which is not attractive for thermal energy conversion applications. In this work, we report the preparation of flexible CNT bulky paper for thermoelectric applications. The ZT values of the CNT bulky papers could be significantly enhanced by Ar plasma treatment, i.e. increasing it from 0.01 for pristine CNTs to 0.4 for Ar-plasma treated CNTs. The improved thermoelectric properties were mainly due to the greatly increased Seebeck coefficients and a reduction in the thermal conductivities, although the electrical conductivities also decreased. Such an improvement makes the plasma treated CNT bulky papers promising as a new type of thermoelectric material for certain niche applications as they are easily processed, mechanically flexible and durable, and chemically stable. |
| first_indexed | 2024-10-01T07:39:59Z |
| format | Journal Article |
| id | ntu-10356/98089 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:39:59Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/980892020-06-01T10:13:35Z Flexible carbon nanotube papers with improved thermoelectric properties Zhao, Weiyun Fan, Shufen Xiao, Ni Liu, Dayong Tay, Yee Yan Yu, Cui Sim, Daohao Hng, Huey Hoon Zhang, Qichun Zhang, Hua Boey, Freddy Yin Chiang Yan, Qingyu Ma, Jan Zhao, Xinbing School of Materials Science & Engineering Temasek Laboratories Although theoretical calculations indicate that the thermoelectric figure of merit, ZT, of carbon nanotubes (CNTs) could reach >2, the experimentally reported ZT values of CNTs are typically in the range of 10−3–10−2, which is not attractive for thermal energy conversion applications. In this work, we report the preparation of flexible CNT bulky paper for thermoelectric applications. The ZT values of the CNT bulky papers could be significantly enhanced by Ar plasma treatment, i.e. increasing it from 0.01 for pristine CNTs to 0.4 for Ar-plasma treated CNTs. The improved thermoelectric properties were mainly due to the greatly increased Seebeck coefficients and a reduction in the thermal conductivities, although the electrical conductivities also decreased. Such an improvement makes the plasma treated CNT bulky papers promising as a new type of thermoelectric material for certain niche applications as they are easily processed, mechanically flexible and durable, and chemically stable. 2013-08-29T09:01:17Z 2019-12-06T19:50:26Z 2013-08-29T09:01:17Z 2019-12-06T19:50:26Z 2012 2012 Journal Article Zhao, W., Fan, S., Xiao, N., Liu, D., Tay, Y. Y., Yu, C., Sim, D., Hng, H. H., Zhang, Q., Boey, F., Ma, J., Zhao, X., Zhang, H.,& Yan, Q. (2012). Flexible carbon nanotube papers with improved thermoelectric properties. Energy & Environmental Science, 5(1), 5364-5369. https://hdl.handle.net/10356/98089 http://hdl.handle.net/10220/13285 10.1039/c1ee01931g en Energy & environmental science |
| spellingShingle | Zhao, Weiyun Fan, Shufen Xiao, Ni Liu, Dayong Tay, Yee Yan Yu, Cui Sim, Daohao Hng, Huey Hoon Zhang, Qichun Zhang, Hua Boey, Freddy Yin Chiang Yan, Qingyu Ma, Jan Zhao, Xinbing Flexible carbon nanotube papers with improved thermoelectric properties |
| title | Flexible carbon nanotube papers with improved thermoelectric properties |
| title_full | Flexible carbon nanotube papers with improved thermoelectric properties |
| title_fullStr | Flexible carbon nanotube papers with improved thermoelectric properties |
| title_full_unstemmed | Flexible carbon nanotube papers with improved thermoelectric properties |
| title_short | Flexible carbon nanotube papers with improved thermoelectric properties |
| title_sort | flexible carbon nanotube papers with improved thermoelectric properties |
| url | https://hdl.handle.net/10356/98089 http://hdl.handle.net/10220/13285 |
| work_keys_str_mv | AT zhaoweiyun flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT fanshufen flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT xiaoni flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT liudayong flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT tayyeeyan flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT yucui flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT simdaohao flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT hnghueyhoon flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT zhangqichun flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT zhanghua flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT boeyfreddyyinchiang flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT yanqingyu flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT majan flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties AT zhaoxinbing flexiblecarbonnanotubepaperswithimprovedthermoelectricproperties |