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Park M, Choi IS, Ju SY. Quantification and removal of carbonaceous impurities in a surfactant-assisted carbon nanotube dispersion and its implication on electronic properties. NANOSCALE ADVANCES 2022; 4:3537-3548. [PMID: 36134357 PMCID: PMC9400498 DOI: 10.1039/d2na00153e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 06/10/2022] [Indexed: 06/16/2023]
Abstract
Carbonaceous impurities (CIs) affect the optoelectronic properties as well as the ability to use absorption spectroscopy to estimate the metallic content of a single-walled carbon nanotube (SWNT) dispersion. Therefore, a method for the accurate quantification and removal of CIs is required. We have devised methods to characterize and quantify CIs present in SWNT batches and to determine the effects of CIs on the optical and electrical properties of SWNT. Quantitative determination of CIs stems from the finding that chloroform selectively disperses CIs present in SWNT batches. CIs separated by dispersing the as-purchased SWNT batch in chloroform have the morphology of defective and agglomerated few-layered graphenes, whose sizes and locations depend on SWNT batches. Moreover, CIs exhibit a featureless UV-vis-mid-wavelength IR (MWIR) absorption curve and an extinction coefficient comparable to graphenes and show difference with carbon black, which is frequently used as the CI reference. The MWIR region that shows least absorptions caused by the transition of various SWNT types was utilized to assess the significant contribution made by CIs present in a surfactant-assisted SWNT dispersion, showing about 12-19 wt% of CIs in various SWNT dispersions. In addition, the extraction of CIs with chloroform results in a highly purified SWNT batch without any diameter distribution change originating from oxidative damage as compared to the commercially available purified SWNT batch. Finally, we found that increasing the weight of CIs present in a SWNT dispersion strongly lowers the thermal conductivity of a SWNT film when compared with the electrical conductivity. This study provides a way to understand the negative effects that CI has on the optoelectronic properties of SWNTs as well as the beneficial effects of excluding ubiquitous CIs in SWNTs batches.
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Affiliation(s)
- Minsuk Park
- Department of Chemistry, Yonsei University 50 Yonsei-ro Seodaemun-Gu Seoul 03722 Republic of Korea +82-2-2123-5639
| | - In-Seung Choi
- Department of Chemistry, Yonsei University 50 Yonsei-ro Seodaemun-Gu Seoul 03722 Republic of Korea +82-2-2123-5639
| | - Sang-Yong Ju
- Department of Chemistry, Yonsei University 50 Yonsei-ro Seodaemun-Gu Seoul 03722 Republic of Korea +82-2-2123-5639
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2
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Affiliation(s)
- Minsuk Park
- Department of Chemistry Yonsei University Seoul South Korea
| | - Sang‐Yong Ju
- Department of Chemistry Yonsei University Seoul South Korea
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Daneshvar F, Chen H, Noh K, Sue HJ. Critical challenges and advances in the carbon nanotube-metal interface for next-generation electronics. NANOSCALE ADVANCES 2021; 3:942-962. [PMID: 36133297 PMCID: PMC9417627 DOI: 10.1039/d0na00822b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/04/2021] [Indexed: 05/25/2023]
Abstract
Next-generation electronics can no longer solely rely on conventional materials; miniaturization of portable electronics is pushing Si-based semiconductors and metallic conductors to their operational limits, flexible displays will make common conductive metal oxide materials obsolete, and weight reduction requirement in the aerospace industry demands scientists to seek reliable low-density conductors. Excellent electrical and mechanical properties, coupled with low density, make carbon nanotubes (CNTs) attractive candidates for future electronics. However, translating these remarkable properties into commercial macroscale applications has been disappointing. To fully realize their great potential, CNTs need to be seamlessly incorporated into metallic structures or have to synergistically work alongside them which is still challenging. Here, we review the major challenges in CNT-metal systems that impede their application in electronic devices and highlight significant breakthroughs. A few key applications that can capitalize on CNT-metal structures are also discussed. We specifically focus on the interfacial interaction and materials science aspects of CNT-metal structures.
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Affiliation(s)
- Farhad Daneshvar
- Intel Ronler Acres Campus, Intel Corp. 2501 NE Century Blvd Hillsboro Oregon 97124 USA
- Polymer Technology Centre, Department of Materials Science and Engineering, Texas A&M University College Station Texas 77843 USA
| | - Hengxi Chen
- Polymer Technology Centre, Department of Materials Science and Engineering, Texas A&M University College Station Texas 77843 USA
| | - Kwanghae Noh
- Polymer Technology Centre, Department of Materials Science and Engineering, Texas A&M University College Station Texas 77843 USA
| | - Hung-Jue Sue
- Polymer Technology Centre, Department of Materials Science and Engineering, Texas A&M University College Station Texas 77843 USA
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Liu X, Liu T, Song J, Hai Y, Luan F, Zhang H, Yuan Y, Li H, Zhao C. Understanding the interaction of single-walled carbon nanotube (SWCNT) on estrogen receptor: A combined molecular dynamics and experimental study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:373-379. [PMID: 30731268 DOI: 10.1016/j.ecoenv.2019.01.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/21/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Considering the large-scale production of diversified nanomaterials, it is paramount importance to unravel the structural details of interactions between nanoparticles and biological systems, and thus to explore the potential adverse impacts of nanoparticles. Estrogen receptors (ER) is one of the most important receptor of human reproductive system and the binding of carbon nanotubes to estrogen receptors was the possible trigger leading to the reproductive toxicity of carbon nanotubes. Thus, with single-walled carbon nanotube (SWCNT) treated as model nanomaterials, a combination of in vivo experiments, spectroscopy assay and molecular dynamic modeling was applied to help us unravel some important issues on the binding characterization between SWCNT and the ligand binding domain (LBD) of ER alpha (ERα). The fluorescence assay and molecular dynamics simulations together validated the binding of SWCNT to ERα, suggesting the possible molecular initiating event. As a consequence, SWCNT binding led to a conformational change on tertiary structure levels and hydrophobic interaction was recognized as the driving force governing the binding behavior between SWCNT and LBD of ERα. A in vivo process presented that the exposure of SWCNT increased ERα expression from 26.43 pg/ml to 259.01 pg/ml, suggesting a potential estrogen interference effects of SWCNT. Our study offers insight on the binding of SWCNT and ERα LBD at atomic level, helpful to accurately evaluate the potential health risks of SWCNT.
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Affiliation(s)
- Xinhe Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Tingting Liu
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou 730000, China
| | - Juanjuan Song
- Pulmonary Hospital of Lanzhou, Lanzhou 730000, China
| | - Ying Hai
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Feng Luan
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264000, China
| | - Haixia Zhang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yongna Yuan
- School of Information Science & Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Hongyu Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chunyan Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China.
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Matsumoto N, Oshima A, Ishizawa S, Chen G, Hata K, Futaba D. One millimeter per minute growth rates for single wall carbon nanotube forests enabled by porous metal substrates. RSC Adv 2018; 8:7810-7817. [PMID: 35539099 PMCID: PMC9078519 DOI: 10.1039/c7ra13093g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/13/2018] [Indexed: 11/21/2022] Open
Abstract
We report an exceptionally high-efficiency synthesis of long single-wall carbon nanotube (SWCNT) forests using porous substrates (metal meshes) in place of nonporous flat substrates. This study examined the dependence of the growth efficiency on various mesh structures, including wire diameter, aperture size, and total surface area. We demonstrated that the synthesis of SWCNT forests is highly dependent on the initial porosity as well as maintaining the open pores throughout the duration of the growth. Our results show that carbon nanotubes (CNTs) can be grown on all surfaces of the mesh in high efficiency with the optimum growth efficiency observed for a mesh porosity of ∼30%. Based on these results, we demonstrated the high efficiency synthesis of SWCNT forests (height: >3.47 mm, average growth rate: 301 μm min−1, and yield: 12.7 mg cm−2 in 10 min growth time). Furthermore, we showed that the initial growth rates exceeded 1 millimeter per minute (1000 μm min−1). Our results further indicate that metal meshes represent a viable alternative to nonporous flat substrates for the efficient synthesis of tall and high yielding SWCNTs. We report an exceptionally high-efficiency synthesis of long single-wall carbon nanotube (SWCNT) forests using a porous substrate (metal meshes) in place of nonporous flat substrates.![]()
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Affiliation(s)
- Naoyuki Matsumoto
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Azusa Oshima
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Sachiko Ishizawa
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Guohai Chen
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Kenji Hata
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Don N. Futaba
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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Tsuji T, Hata K, Futaba DN, Sakurai S. Unexpected Efficient Synthesis of Millimeter-Scale Single-Wall Carbon Nanotube Forests Using a Sputtered MgO Catalyst Underlayer Enabled by a Simple Treatment Process. J Am Chem Soc 2016; 138:16608-16611. [DOI: 10.1021/jacs.6b11189] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takashi Tsuji
- CNT-Application
Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Research Association for Single Wall Carbon Nanotubes (TASC), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Kenji Hata
- CNT-Application
Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Research Association for Single Wall Carbon Nanotubes (TASC), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Don N. Futaba
- CNT-Application
Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Research Association for Single Wall Carbon Nanotubes (TASC), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Shunsuke Sakurai
- CNT-Application
Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Research Association for Single Wall Carbon Nanotubes (TASC), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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