Scalable manufacturing of fibrous nanocomposites for multifunctional liquid sensing
Yükleniyor...
Dosyalar
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Cellulose-based paper electronics is an attractive technology to meet the growing demands for naturally abundant, biocompatible, biodegradable, flexible, inexpensive, lightweight and highly miniaturizable sensory materials. The price reduction of industrial carbon nanotube (CNT) grades offers opportunities to manufacture electrically conductive papers whose resistivity is responsive to environmental stimuli, such as the presence of water or organic solvents. Here, a highly sensitive paper nanocomposite is developed by integrating CNTs into a hierarchical network of pulp fibers and nanofibrillated cellulose. The aqueous-phase dynamic web forming process enables the scalable production of sensory paper nanocomposites with minimal nanoparticle loss due to the tailored interfacial bonding between CNT and cellulose components. The resulting materials are applied as multifunctional liquid sensors, such as leak detection and wave monitoring. The sensitivity to liquid water spans an outstanding four orders of magnitude even after 30 cycles and 6-month natural aging, due to the hydroexpansion of the hierarchical cellulose network, which alters the intertube distance between neighboring CNTs. The re-organization of percolated CNTs modifies the electron transport in wet areas of the sheet, which can be predicted by an equivalent circuit of resistors for the rapid detection and quantification of various liquids over large surfaces. (c) 2021 Published by Elsevier Ltd.
Açıklama
This research is supported by the Advanced Manufacturing Program (No. 1927623) from the National Science Foundation and by the McIntire-Stennis Cooperative Forestry Research Program (No. 1020630) from the USDA National Institute of Food and Agriculture. The authors also thank WestRock Paper Company for donated the wood pulp used in this research. Open access funding is enabled and organized by CERN.
Anahtar Kelimeler
Cellulose Nanofibrils, Carbon Nanotubes, Paper-Based Electronics, Liquid Sensing, Leak Detection
Kaynak
Nano Today
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
40
Sayı
Künye
Goodman, S. M., Tortajada, I. A., Haslbeck, F., Oyulmaz, K. Y., Rummler, A., Sánchez, C. S., ... & Dichiara, A. B. (2021). Scalable manufacturing of fibrous nanocomposites for multifunctional liquid sensing. Nano Today, 40, 101270.
