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Conductive Polymer/Carbon Nanotube Composites (Supported by NSF CAREER Award)
Carbon nanotubes (CNTs) have attracted enormous interest due to their remarkable mechanical, thermal, and electrical properties. The CNTs applications include nanoelectronics, sensors, energy storage devices, photovoltaics, and nanocomposite materials. One of the key challenges to fully realize their extensive applications is the dispersion and functionalization of carbon nanotubes. We have developed a simple and versatile approach to disperse CNTs within various solvents and polymer matrices using conjugated block copolymers with tunable functionalities. In contrast to invasive chemical functionalization of CNTs, this approach provides non-invasive method to disperse and functionalize CNTs. With a simple sonication, the conjugated polymer blocks, such as polythiophenes, can form strong π-π interactions with carbon nanotube walls, while the non-conjugated polymer blocks will provide the de-bundled CNTs with good solubility and stability in a wide range of organic solvents and host polymer matrices. The non-conjugated polymer blocks can also introduce a variety of functionalities to CNTs, allowing further functionalization such as depositing nanoparticles on CNT surfaces. Additionally, we have fabricated ordered poly(3-hexylthiophene)(P3HT) supramolecular structures on CNTs through a CNT enhanced crystallization process. Such bottom-up strategy provides a general approach to build functional conductive supramolecular structures that will lead to numerous applications in nanoscale electronics. Our current work aims at fabricating multifunctional CNT or graphene/conductive block copolymer composites and exploring their applications in energy conversion and storage devices.
Conductive Polymer/Carbon Nanotube Composites (Supported by NSF CAREER Award)
Carbon nanotubes (CNTs) have attracted enormous interest due to their remarkable mechanical, thermal, and electrical properties. The CNTs applications include nanoelectronics, sensors, energy storage devices, photovoltaics, and nanocomposite materials. One of the key challenges to fully realize their extensive applications is the dispersion and functionalization of carbon nanotubes. We have developed a simple and versatile approach to disperse CNTs within various solvents and polymer matrices using conjugated block copolymers with tunable functionalities. In contrast to invasive chemical functionalization of CNTs, this approach provides non-invasive method to disperse and functionalize CNTs. With a simple sonication, the conjugated polymer blocks, such as polythiophenes, can form strong π-π interactions with carbon nanotube walls, while the non-conjugated polymer blocks will provide the de-bundled CNTs with good solubility and stability in a wide range of organic solvents and host polymer matrices. The non-conjugated polymer blocks can also introduce a variety of functionalities to CNTs, allowing further functionalization such as depositing nanoparticles on CNT surfaces. Additionally, we have fabricated ordered poly(3-hexylthiophene)(P3HT) supramolecular structures on CNTs through a CNT enhanced crystallization process. Such bottom-up strategy provides a general approach to build functional conductive supramolecular structures that will lead to numerous applications in nanoscale electronics. Our current work aims at fabricating multifunctional CNT or graphene/conductive block copolymer composites and exploring their applications in energy conversion and storage devices.
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Chemical Science (2024)
IET NANODIELECTRICSno. 1 (2024): 33-45
Precision Chemistryno. 9 (2023): 548-554
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Journal of Energy Chemistry (2023): 357-364
Azina Rahmani, Maksim A. Sultanov, Kemah Kamiru-White, Lorianne R. Shultz-Johnson,Brian E. Butkus,Shaohua Xie,Fudong Liu,Diep T. H. Nguyen, Noe?mie Wilson-Faubert,Ali Nazemi, Parag Banerjee,Lei Zhai,
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ACS APPLIED MATERIALS & INTERFACESno. 31 (2023): 37157-37173
Journal of Composites Scienceno. 403 (2023): 403
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Environmentsno. 10 (2023): 181-181
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Precision Chemistryno. 10 (2023): 602-607
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