文献类型：期刊文献

中文题名：Superelastic wood-based nanogenerators magnifying the piezoelectric effect for sustainable energy conversion

作者：Tong Wu[1,2,3] Yun Lu[3] Xinglin Tao[2] Pan Chen[4] Yongyue Zhang[3] Bohua Ren[3] Feifan Xie[3] Xia Yu[3] Xinyi Zhou[3] Dongjiang Yang[1] Jin Sun[1] Xiangyu Chen[2]

第一作者：Tong Wu

机构：[1]State Key Laboratory of Bio-fibers and Eco-textiles, School of Environmental Science and Engineering, Institute of Marine Biobased Materials,Qingdao University,Qingdao,China;[2]Beijing Key Laboratory of Micro-Nano Energy and Sensor, CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences,Bejing,China;[3]Research Institute of Wood Industry, Chinese Academy of Forestry,Beijing.China;[4]Beijing Engineering Research Centre of Cellulose and Its Derivatives, School of Materials Science and Engineering, Beijing Institute of Technology,Beijing,China

年份：2024

卷号：6

期号：11

起止页码：141-154

中文期刊名：Carbon Energy

外文期刊名：碳能源(英文)

收录：CSCD:【CSCD2023_2024】；

基金：This work is supported by the National NaturalScience Foundation of China for Excellent YongScholar(Grant No.32122058,52322313);NationalNatural Science Foundation of China(Grant No.32371797);Natural Science Foundation of ShandongProvince(ZR2023ME098);State Key Laboratoryof Bio-Fibers and Eco-Textiles(Qingdao University,ZKT26)

语种：英文

中文关键词：energy conversion;piezoelectric;ray tissues;roasted wood;sustainable

分类号：TS6

摘要：In the quest for sustainable energy materials,wood is discovered to be a potential piezoelectric material.However,the rigidity,poor stability,and low piezoelectric properties of wood impede its development.Here,we obtained a superelastic roasted wood nanogenerator(RW-NG)by unraveling ray tissues through a sustainable roasting strategy.The increased compressibility of roasted wood intensifies the deformation of cellulose microfibrils,significantly enhancing the piezoelectric effect in wood.Roasted wood(15×15×15 mm^(3),longitudinal×radial×tangential)can generate a voltage and current outputs of 1.4 V and 14.5 nA,respectively,which are more than 70 times that of natural wood.The wood sample can recover 90%of its shape after 5000 compressions at 65%strain,exhibiting excellent elasticity and stability.Importantly,roasted wood does not add any toxic substances and can be safely applied on the human skin as a self-powered sensor for detecting body movements.Moreover,it can also be assembled into self-powered wooden floors for energy harvesting.These indicate that roasted wood has great potential for sustainable sensing and energy conversion.