Stress sensitive electricity based on Ag/cellulose nanofiber aerogel for self-reporting

Qiufang Yao; Bitao Fan; Ye Xiong; Chao Wang; Hanwei Wang; Chunde Jin; Qingfeng Sun

doi:10.1016/j.carbpol.2017.03.089

Stress sensitive electricity based on Ag/cellulose nanofiber aerogel for self-reporting

Carbohydr Polym. 2017 Jul 15:168:265-273. doi: 10.1016/j.carbpol.2017.03.089. Epub 2017 Mar 29.

Authors

Qiufang Yao¹, Bitao Fan¹, Ye Xiong¹, Chao Wang¹, Hanwei Wang¹, Chunde Jin², Qingfeng Sun³

Affiliations

¹ School of Engineering, Zhejiang A&F University, Lin'an 311300, China.
² School of Engineering, Zhejiang A&F University, Lin'an 311300, China; Key Laboratory of Wood Science and Technology, Lin'an 311300, China.
³ School of Engineering, Zhejiang A&F University, Lin'an 311300, China; Key Laboratory of Wood Science and Technology, Lin'an 311300, China. Electronic address: qfsun@zafu.edu.cn.

PMID: 28457449
DOI: 10.1016/j.carbpol.2017.03.089

Abstract

A self-reporting aerogel toward stress sensitive slectricity (SSE) was presented using an interconnected 3D fibrous network of Ag nanoparticles/cellulose nanofiber aerogel (Ag/CNF), which was prepared via combined routes of silver mirror reaction and ultrasonication. Sphere-like Ag nanoparticles (AgNPs) with mean diameter of 74nm were tightly anchored in the cellulose nanofiber through by the coherent interfaces as the conductive materials. The as-prepared Ag/CNF as a self-reporting material for SSE not only possessed quick response and sensitivity, but also be easily recovered after 100th compressive cycles without plastic deformation or degradation in compressive strength. Consequently, Ag/CNF could play a viable role in self-reporting materials as a quick electric-stress responsive sensor.

Keywords: Aerogel; Ag nanoparticles; Cellulose nanofiber; Self-reporting; Stress sensitive electricity.