Cellulose nanocrystal blended with carbon nanotube as flexible supercapacitor and diclofenac sodium sensor.
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| Title: | Cellulose nanocrystal blended with carbon nanotube as flexible supercapacitor and diclofenac sodium sensor. |
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| Authors: | Yu, Jiaming1 (AUTHOR), Cao, Jinzhi1 (AUTHOR), Duan, Kaihuai1 (AUTHOR), Hu, Huiyun1 (AUTHOR), Yang, Hu1 (AUTHOR) hyang@ecust.edu.cn, Xu, Zhenliang1 (AUTHOR) |
| Source: | Materials Science & Engineering: B. Jan2026:Part A, Vol. 323, pN.PAG-N.PAG. 1p. |
| Subjects: | Cellulose nanocrystals, Carbon nanotubes, Flexible electronics, Block copolymers, Electric capacity, Supercapacitors, Detectors |
| Abstract: | [Display omitted] • Immscibility between CNC and CNT leads to their loose packing structure. • Amphiphilic acrylate copolymer improved connection between CNC and CNT. • Capacitance of CNC-CNT electrode increased at the ratio of 1:4 (CNC-CNT) • CNC-CNT (1:4) electrode showed a high and stable sensibility as DFS sensor. Cellulose nanocrystals (CNCs) prepared at the optimal condition were blended with carboxyl-functionalized carbon nanotubes (CNTs) as electrode. Molecular simulation revealed a low affinity between CNT and CNC, leading to a loose packing structure with a larger surface area and pore size. The CNC-CNT electrode with a 1:4 ratio showed a capacitance of 68.8 mF/cm2, higher than that of CNT. But its water stability is low. Therefore, an amphiphilic acrylate copolymer was synthesized to increase its water stability and make it flexible. The specific capacitance reached 66.7 mF/cm2. The flexible supercapacitor device maintained good stability over 2,000 cycles, and exhibited acceptable capacitance across various bending angles. Moreover, CNC-CNT electrode as DFS sensor, exhibited high selectivity, with a linear detection range of 12.5 to 350 µM and a detection limit of 0.034 µM. Overall, this study reveals the potential of CNC-CNT electrode in energy and environmental field. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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