@article{ART002964469},
author={Song Hyeongyun and Kim Dong Hwan and Park Cheol Woo and Jae Jungho and Hong Seungki and Lee, Jaegeun},
title={Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={3},
pages={921-929},
doi={10.1007/s42823-023-00473-8}
TY - JOUR
AU - Song Hyeongyun
AU - Kim Dong Hwan
AU - Park Cheol Woo
AU - Jae Jungho
AU - Hong Seungki
AU - Lee, Jaegeun
TI - Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness
JO - Carbon Letters
PY - 2023
VL - 33
IS - 3
PB - Korean Carbon Society
SP - 921
EP - 929
SN - 1976-4251
AB - Mass production of high-quality carbon nanotubes (CNTs) remains a challenge, requiring the development of new wet-impregnated catalyst suitable for the catalytic chemical vapor deposition (CCVD) of CNTs in a fluidized bed reactor. For the successful development of a new catalyst, a highly robust system to synthesize CNTs must be established. Here, we systematically investigated the robustness of CNT synthesis by CCVD using a wet-impregnated catalyst. We statistically tested four factors that could potentially affect the robustness of CNT synthesis system, focusing on carbon yield and IG/ID. First, we tested the effect of vacuum baking before CNT growth. F test and CV equality test concluded that vacuum baking recipe did not significantly reduce the variability of the CNT synthesis. Second, we tested the batch-to-batch variation of catalysts. The results of t test and one-way analysis of variance indicate that there is significant difference in carbon yield and IG/ID among catalysts from different batches. Third, we confirmed that there is spatial non-uniformity of wet-impregnated catalysts within a batch when they are produced in large scale. Finally, we developed a multi-step heating recipe to mitigate the temperature overshooting during the CNT synthesis. The multi-step recipe increased the mean of carbon yield, but did not influence the variability of CNT synthesis. We believe that our research can contribute to the establishment of a robust CNT synthesis system and development of new wet-impregnated catalysts.
KW - Carbon nanotubes Wet impregnation Catalyst Robustness ANOVA
DO - 10.1007/s42823-023-00473-8
ER -
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki and Lee, Jaegeun. (2023). Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness. Carbon Letters, 33(3), 921-929.
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki and Lee, Jaegeun. 2023, "Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness", Carbon Letters, vol.33, no.3 pp.921-929. Available from: doi:10.1007/s42823-023-00473-8
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki, Lee, Jaegeun "Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness" Carbon Letters 33.3 pp.921-929 (2023) : 921.
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki, Lee, Jaegeun. Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness. 2023; 33(3), 921-929. Available from: doi:10.1007/s42823-023-00473-8
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki and Lee, Jaegeun. "Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness" Carbon Letters 33, no.3 (2023) : 921-929.doi: 10.1007/s42823-023-00473-8
Song Hyeongyun; Kim Dong Hwan; Park Cheol Woo; Jae Jungho; Hong Seungki; Lee, Jaegeun. Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness. Carbon Letters, 33(3), 921-929. doi: 10.1007/s42823-023-00473-8
Song Hyeongyun; Kim Dong Hwan; Park Cheol Woo; Jae Jungho; Hong Seungki; Lee, Jaegeun. Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness. Carbon Letters. 2023; 33(3) 921-929. doi: 10.1007/s42823-023-00473-8
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki, Lee, Jaegeun. Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness. 2023; 33(3), 921-929. Available from: doi:10.1007/s42823-023-00473-8
Song Hyeongyun, Kim Dong Hwan, Park Cheol Woo, Jae Jungho, Hong Seungki and Lee, Jaegeun. "Statistical analysis of the synthesis of carbon nanotubes using wet-impregnated catalysts for improved robustness" Carbon Letters 33, no.3 (2023) : 921-929.doi: 10.1007/s42823-023-00473-8
