PMID- 34846434
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211201
IS  - 2051-6355 (Electronic)
IS  - 2051-6347 (Linking)
VI  - 8
IP  - 8
DP  - 2021 Aug 1
TI  - Nanofiber fabric based ion-gradient-enhanced moist-electric generator with a 
      sustained voltage output of 1.1 volts.
PG  - 2303-2309
LID - 10.1039/d1mh00565k [doi]
AB  - Moisture-enabled electricity generation as an emerging new energy-harvesting 
      technology is one of the most fascinating and promising candidates for supplying 
      renewable and clean power. However, existing moist-electric generators (MEGs) can 
      only produce intermittent, brief bursts of power with voltage output less than 1 
      V, severely restricting their practical applications. Therefore, there is an 
      urgent requirement for next-generation MEG devices with high efficiency and 
      continuous energy harvesting properties. In this work, an ion-gradient-enhanced 
      MEG consisting of electrospun nanofiber fabric and porous active electrode was 
      demonstrated to provide a perfect solution for solving instantaneous and low 
      electric output at the same time. The assembled MEG can produce a sustained 
      voltage output of 1.1 V for 40 000 s without any weak signs, reaching the highest 
      level among all reported MEGs. This remarkable performance mainly arises from the 
      higher concentration difference induced by the introduced active electrode which 
      enhances ion diffusion through the porous nanofiber fabric. In addition, the 
      co-existing streaming potential also contributes to the excellent performance. 
      Beyond power generation, the electrospun nanofiber based MEGs also demonstrate 
      successful applications in self-powered sensors, including ammonia leak 
      monitoring and moisture-temperature sensor for forest-fire detection. This study 
      provides insights for the designing of innovative MEGs and opens a pioneering 
      avenue for future energy conversion.
FAU - Sun, Zhaoyang
AU  - Sun Z
AD  - Key Laboratory of Textile Science & Technology, Ministry of Education, College of 
      Textiles, Donghua University, Shanghai 201620, China. wangliming@dhu.edu.cn 
      xhqin@dhu.edu.cn.
FAU - Feng, Lanlan
AU  - Feng L
FAU - Wen, Xian
AU  - Wen X
FAU - Wang, Liming
AU  - Wang L
FAU - Qin, Xiaohong
AU  - Qin X
FAU - Yu, Jianyong
AU  - Yu J
LA  - eng
PT  - Journal Article
DEP - 20210629
PL  - England
TA  - Mater Horiz
JT  - Materials horizons
JID - 101623537
SB  - IM
EDAT- 2021/12/01 06:00
MHDA- 2021/12/01 06:01
CRDT- 2021/11/30 12:25
PHST- 2021/11/30 12:25 [entrez]
PHST- 2021/12/01 06:00 [pubmed]
PHST- 2021/12/01 06:01 [medline]
AID - 10.1039/d1mh00565k [doi]
PST - ppublish
SO  - Mater Horiz. 2021 Aug 1;8(8):2303-2309. doi: 10.1039/d1mh00565k. Epub 2021 Jun 
      29.