TY - JOUR
T1 - Lightweight Triboelectric Nanogenerators Based on Hollow Stellate Cellulose Films Derived from Juncus effusus L. Aerenchyma
AU - Chen, Qi
AU - Li, Wenjian
AU - Yan, Feng
AU - Maniar, Dina
AU - van Dijken, Jur
AU - Rudolf, Petra
AU - Pei, Yutao
AU - Loos, Katja
N1 - Funding Information:
The authors would like to thank the financial support from the China Scholarship Council (CSC No. 201706300134) and the University of Groningen. The authors would like to thank the financial support from the Advanced Materials research program of the Zernike National Research Centre under the Bonus Incentive Scheme (BIS) of the Dutch Ministry for Education, Culture and Science. The authors are deeply grateful to Dr. Rui Li (group of Polymer Chemistry and Bioengineering, University of Groningen) for his support on the water contact angle measurement. The authors are thankful to Jacob Baas (group of Nanostructures of Functional Oxides, University of Groningen) for training and access to the XRD instrument.
Publisher Copyright:
© 2023 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH.
PY - 2023/9/12
Y1 - 2023/9/12
N2 - This study reports a facile delignification and natural drying process for synthesizing cellulose films using the unique surface roughness, porosity, and lightness of the hollow stellate cellulose (HSC) united aerenchyma of the wetland weed Juncus effusus L. By controlling the grafted amino/fluorine-bearing group content of various silane coupling agents, this work successfully manipulates the triboelectric polarities of HSC films after silanization. Subsequently, a layer of Ag nanowire electrodes is coated on one side of the silanized HSC friction layers, resulting in flexible, lightweight, semi-transparent HSC-based triboelectric nanogenerators (HSC-TENGs) featuring both macro-scale surface roughness and micro-nano inner pores. These all-in-one HSC-TENGs achieve the highest output voltage of 4.86 V, which is 28 times that of TENGs employing two pristine HSC films as triboelectric layers (PHSC-TENG). Finally, the HSC-TENG with the optimum output power is applied as a wearable self-powered sensor for gait analysis, demonstrating stable and sustainable performances in distinguishing different body motions such as walking, running, jumping, and calf raising. This study not only proposes a new cellulose-based TENG for future in-depth body locomotion analysis but also paves the way for converting differently structured aerenchyma from abundant problematic aquatic or wetland weeds into promising structural templates in multifunctional cellulose-based applications.
AB - This study reports a facile delignification and natural drying process for synthesizing cellulose films using the unique surface roughness, porosity, and lightness of the hollow stellate cellulose (HSC) united aerenchyma of the wetland weed Juncus effusus L. By controlling the grafted amino/fluorine-bearing group content of various silane coupling agents, this work successfully manipulates the triboelectric polarities of HSC films after silanization. Subsequently, a layer of Ag nanowire electrodes is coated on one side of the silanized HSC friction layers, resulting in flexible, lightweight, semi-transparent HSC-based triboelectric nanogenerators (HSC-TENGs) featuring both macro-scale surface roughness and micro-nano inner pores. These all-in-one HSC-TENGs achieve the highest output voltage of 4.86 V, which is 28 times that of TENGs employing two pristine HSC films as triboelectric layers (PHSC-TENG). Finally, the HSC-TENG with the optimum output power is applied as a wearable self-powered sensor for gait analysis, demonstrating stable and sustainable performances in distinguishing different body motions such as walking, running, jumping, and calf raising. This study not only proposes a new cellulose-based TENG for future in-depth body locomotion analysis but also paves the way for converting differently structured aerenchyma from abundant problematic aquatic or wetland weeds into promising structural templates in multifunctional cellulose-based applications.
KW - aerenchyma
KW - biomass
KW - cellulose films
KW - Juncus effusus L.
KW - triboelectric nanogenerators
UR - http://www.scopus.com/inward/record.url?scp=85170381058&partnerID=8YFLogxK
U2 - 10.1002/adfm.202304801
DO - 10.1002/adfm.202304801
M3 - Article
AN - SCOPUS:85170381058
SN - 1616-301X
JO - Advanced Functional Materials
JF - Advanced Functional Materials
ER -