التفاصيل البيبلوغرافية
| العنوان: |
Maximizing Polyacrylonitrile Nanofiber Piezoelectric Properties through the Optimization of Electrospinning and Post-thermal Treatment Processes |
| المؤلفون: |
Sooyoun Yu (1788372), JoAnna Milam-Guerrero (6588830), Youyi Tai (8037020), Steve Yang (11748391), Yun Young Choi (5575382), Jin Nam (206241), Nosang V. Myung (1553152) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Biochemistry, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, piezoelectric charge constant, limited works examined, diverse chemical functionality, dimensional confinement effect, different chemical functionalities, dependent piezoelectric properties, 95 ° c, e ., zigzag, thermal treatment processes, electrospinning process allowed, achieved via reducing, pan nanofiber diameter, 1 , thermal treatment, situ <, fiber diameter, zigzag conformation, various applications, systematically synthesized, systematically investigated, smaller fiber, polyvinylidene fluoride, polymer chains, performance nanogenerator, greater fraction |
| الوصف: |
While high-performance piezoelectric polymeric nanofibers such as polyvinylidene fluoride and its derivatives have been extensively studied to various applications, limited works examined other functional piezoelectric organic polymers with different chemical functionalities. In this work, size- and conformation-dependent piezoelectric properties of polyacrylonitrile (PAN) nanofibers were systematically investigated. PAN nanofibers with diameters ranging from 40 to 600 nm were systematically synthesized by adjusting electrospinning solution conditions where their conformation was further tuned through post-thermal treatment. Through in situ poling and stretching of polymer chains, the electrospinning process allowed the alignment of polar functional groups along the nanofibers to form a greater fraction of the electroactive phase (i.e., zigzag) over 3 1 helical (nonelectroactive) conformation. Smaller fiber further increased the electroactive content by the dimensional confinement effect. Fourier-transform infrared spectroscopy analysis and X-ray diffraction analysis confirmed the enhancement of zigzag conformation over 3 1 helical by reducing the fiber diameter and postannealing. A piezoelectric charge constant of 39.0 pm/V was achieved via reducing the PAN nanofiber diameter down to 40 nm, followed by post-thermal treatment at 95 °C, which paved a way to develop a flexible high-performance nanogenerator with diverse chemical functionality. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Maximizing_Polyacrylonitrile_Nanofiber_Piezoelectric_Properties_through_the_Optimization_of_Electrospinning_and_Post-thermal_Treatment_Processes/17072572 |
| DOI: |
10.1021/acsapm.1c01549.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsapm.1c01549.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.D61A9D53 |
| قاعدة البيانات: |
BASE |