DNA-based recyclable moist-electric generator  

作　　者：Tianlei Guang Yaxing Huang Haiyan Wang Tiancheng He Kaixuan Zhu Yujuan Zhang Hongfei Shang Jian Li Huhu Cheng Liangti Qu 

机构地区：[1]Laboratory of Flexible Electronics Technology,Key Laboratory of Organic Optoelectronics&Molecular Engineering,Ministry of Education,Department of Chemistry,Tsinghua University,Beijing 100084,China [2]State Key Laboratory of Tribology in Advanced Equipment,Tsinghua University,Beijing 100084,China [3]School of Chemical Engineering and Technology,North University of China,Taiyuan 030051,China [4]State Key Laboratory of Special Surface Protection Materials and Application Technology,Wuhan Research Institute of Materials Protection,Wuhan 430000,China

出　　处：《Friction》2025年第2期57-62,共6页摩擦(英文版)

基　　金：supported by the financial support from the National Natural Science Foundation of China(22075165,22035005,52350362,22205129,52090032,and 52022051);Tsinghua-Foshan Innovation Special Fund(2020THFS0501);supported by Shanxi Province Science and Technology Cooperation and Exchange Special Project(202204041101028);the Shanxi Provincial Key Laboratory of Advanced Carbon Electrode Materials(202104010910019).

摘　　要：Recently developed moist-electric generator(MEG)can spontaneously produce electricity after absorbing water from the air,delivering an interesting and novel power harvesting process.The employment of environment-friendly biological substrates in MEGs has demonstrated the favorable electricity generation capacity,however,which always requires a careful cultivation process or gentle storage environment.In this regard,the extremely abundant DNA formed porous membrance is fabricated to construct a novel recyclable DNA based MEG(DNA-MEG)which produces a stable voltage of ca.0.3 V with a current density of ca.1.2μA·cm−2,as well as a maximum power density of 0.36μW·cm−2 at~90%relative humidity air.Interestingly,benefited from excellent water-solubility,this freeze-drying DNA membrance can be easily recycled after DNA-MEG damaged and the reborned device still shows favorable electricity generation performance.In addition,several DNA-MEGs in parallel or series can power up light-emitting diodes and so on for applications.This stable and recyclable DNA-MEG will provide new insights for moisture power generation device design and enlarge the practical regions greatly.

关 键 词：moist-electric generator(MEG) DNA biological substrates electricity generation 

分 类 号：TH117[机械工程—机械设计及理论]