TY - JOUR
T1 - A Multifunctional Asymmetric Fabric for Sustained Electricity Generation from Multiple Sources and Simultaneous Solar Steam Generation
AU - Sun, Shuangjie
AU - Li, Hui
AU - Zhang, Miaomiao
AU - Sun, Binbin
AU - Xie, Yibing
AU - Zhou, Wei
AU - Yang, Peipei
AU - Mi, Hao-Yang
AU - Guo, Zhanhu
AU - Liu, Chuntai
AU - Shen, Changyu
N1 - Funding information: The authors are grateful for the financial support from the National Natural Science Foundation of China (52173049), and the Natural Science Foundation of Hunan Province (2021JJ40177). The authors thank Huiquan Wang from Shiyanjia Lab ( www.shiyanjia.com ) for the SEM imaging.
PY - 2023/11/15
Y1 - 2023/11/15
N2 - Harvesting electrical energy from water and moisture has emerged as a novel ecofriendly energy conversion technology. Herein, a multifunctional asymmetric polyaniline/carbon nanotubes/poly(vinyl alcohol) (APCP) that can produce electric energy from both saline water and moisture and generate fresh water simultaneously is developed. The constructed APCP possesses a negatively charged porous structure that allows continuous generation of protons and ion diffusion through the material, and a hydrophilicity–hydrophobic interface which results in a constant potential difference and sustainable output. A single APCP can maintain stable output for over 130 h and preserve a high voltage of 0.61 V, current of 81 µA, and power density of 82.4 µW cm−3 with 0.15 cm3 unit size in the water-induced electricity generation process. When harvesting moisture energy, the APCP creates dry-wet asymmetries and triggers the spontaneous development of electrical double layer with a current density of 1.25 mA cm−3, sufficient to power small electronics. A device consisting of four APCP can generate stable electricity of 3.35 V and produce clean water with an evaporation rate of 2.06 kg m−2 h−1 simultaneously. This work provides insights into the fabrication of multifunctional fabrics for multisource energy harvesting and simultaneous solar steam generation.
AB - Harvesting electrical energy from water and moisture has emerged as a novel ecofriendly energy conversion technology. Herein, a multifunctional asymmetric polyaniline/carbon nanotubes/poly(vinyl alcohol) (APCP) that can produce electric energy from both saline water and moisture and generate fresh water simultaneously is developed. The constructed APCP possesses a negatively charged porous structure that allows continuous generation of protons and ion diffusion through the material, and a hydrophilicity–hydrophobic interface which results in a constant potential difference and sustainable output. A single APCP can maintain stable output for over 130 h and preserve a high voltage of 0.61 V, current of 81 µA, and power density of 82.4 µW cm−3 with 0.15 cm3 unit size in the water-induced electricity generation process. When harvesting moisture energy, the APCP creates dry-wet asymmetries and triggers the spontaneous development of electrical double layer with a current density of 1.25 mA cm−3, sufficient to power small electronics. A device consisting of four APCP can generate stable electricity of 3.35 V and produce clean water with an evaporation rate of 2.06 kg m−2 h−1 simultaneously. This work provides insights into the fabrication of multifunctional fabrics for multisource energy harvesting and simultaneous solar steam generation.
KW - asymmetric structures
KW - moisture-enabled electric generators
KW - multifunctional fabrics
KW - solar steam generation
KW - water-induced electricity generation
UR - http://www.scopus.com/inward/record.url?scp=85165257270&partnerID=8YFLogxK
U2 - 10.1002/smll.202303716
DO - 10.1002/smll.202303716
M3 - Article
SN - 1613-6810
VL - 19
JO - Small
JF - Small
IS - 46
M1 - 2303716
ER -