Improved piezoelectricity of porous cellulose material via flexible polarization-initiate bridge for self-powered sensor

Li, Shufang; He, Ya‐Ling; Xian, Yang; Fu, Xuejiao; Hou, Yayi; Tian, Huafeng; Huang, Jin; Gan, Lin

doi:10.1016/j.carbpol.2022.120099

Cited by 12 publications

(4 citation statements)

References 42 publications

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“…In their study, Li et al 205 developed lightweight and portable self-powered piezoelectric sensors using CNCs as porous materials. However, they observed that unmodified CNCs did not exhibit sufficient piezoelectric properties without intense external polarization.…”

Section: Recent Advances In Cncs-based Sensors For Physical Stimuli S...mentioning

confidence: 99%

Recent advances in cellulose nanocrystals-based sensors: a review

Singh,

Bhardwaj,

Tiwari

et al. 2024

Mater. Adv.

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Section: Recent Advances In Cncs-based Sensors For Physical Stimuli S...mentioning

confidence: 99%

Recent advances in cellulose nanocrystals-based sensors: a review

Singh,

Bhardwaj,

Tiwari

et al. 2024

Mater. Adv.

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“…Li et al [69] prepared a flexible piezoelectric porous material using flexible polyethylene glycol as a piezoelectric activator based on cellulose nanocrystals. The piezoelectric material adsorbed graphene as the surface electrode is consisted of 0.096 g cm −3 cellulose nanocrystals-polyethylene glycolgraphene porous material.…”

Section: Porous Typementioning

confidence: 99%

Recent advances in piezoelectric and triboelectric self-powered sensors for human–machine interface applications

Du,

Li,

Qiu

et al. 2024

J. Micromech. Microeng.

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The burgeoning internet of things (IoTs) and artificial intelligence (AI) technologies have prospered a variety of emerging applications. Human-machine interfaces (HMIs), for instance, enables users with intuitive, efficient, and friendly way to interact with machines, capable of instant information acquisition, processing, communication, and feedback, etc. These features require ultra-compact and high-performance transducers, and therefore self-powered sensors have become the key underlying technology for HMI applications. This review focuses on the piezoelectric, triboelectric, and hybrid self-powered sensors with particular attention to their microstructures and fabrication methods, showing that both traditional microfabrication and emerging fabrication methods like three-dimensional (3D) printing, electrospinning, and braiding have contributed to the planar, array, porous, fabric, and composite type self-powered sensors. Moreover, the integration method of piezoelectric and triboelectric sensor arrays (TSAs) is investigated. The crosstalk issue is highlighted, i.e. the signal interference between adjacent sensing units, and current solutions such as array design optimization, signal processing improvement, and material innovation to reduce crosstalk sensitivity have been reviewed through specific examples. Three categories of HMI applications have been outlined, including intelligent interaction, robotics, and human monitoring, with detailed explanations of how the self-powered sensors support these HMI applications. Through discussion of challenges and prospects, it is proposed that further coordinating the design and fabrication of micro devices with HMIs will potentially boost the intelligent application with even higher level of diversification, convenience, and interconnectivity.

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“…Then, by comparing the non-oriented structure, the oriented pore structure is made by controlling of ice-crystal-oriented growth to improve the excellent anisotropic conductivity and sensing performance of biomimetic sponge materials [ 98 ]. The oriented pores of cellulose nanocrystalline aerogels are also controlled by the directional assembly of ice crystals and cellulose nanocrystals, and improve the anisotropic piezoelectric performance of biomimetic porous materials [ 99 ].…”

Section: Structure-function Relationship Of Bionic Porous Structuresmentioning

confidence: 99%

Design, Manufacturing and Functions of Pore-Structured Materials: From Biomimetics to Artificial

2023

Self Cite

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Porous structures with light weight and high mechanical performance exist widely in the tissues of animals and plants. Biomimetic materials with those porous structures have been well-developed, and their highly specific surfaces can be further used in functional integration. However, most porous structures in those tissues can hardly be entirely duplicated, and their complex structure-performance relationship may still be not fully understood. The key challenges in promoting the applications of biomimetic porous materials are to figure out the essential factors in hierarchical porous structures and to develop matched preparation methods to control those factors precisely. Hence, this article reviews the existing methods to prepare biomimetic porous structures. Then, the well-proved effects of micropores, mesopores, and macropores on their various properties are introduced, including mechanical, electric, magnetic, thermotics, acoustic, and chemical properties. The advantages and disadvantages of hierarchical porous structures and their preparation methods are deeply evaluated. Focusing on those disadvantages and aiming to improve the performance and functions, we summarize several modification strategies and discuss the possibility of replacing biomimetic porous structures with meta-structures.

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Improved piezoelectricity of porous cellulose material via flexible polarization-initiate bridge for self-powered sensor

Cited by 12 publications

References 42 publications

Recent advances in cellulose nanocrystals-based sensors: a review

Recent advances in cellulose nanocrystals-based sensors: a review

Recent advances in piezoelectric and triboelectric self-powered sensors for human–machine interface applications

Design, Manufacturing and Functions of Pore-Structured Materials: From Biomimetics to Artificial

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