TY - JOUR
T1 - Asymmetric ionic aerogel of biologic nanofibrils for harvesting electricity from moisture
AU - Yang, Weiqing
AU - Li, Xiankai
AU - Han, Xiao
AU - Zhang, Weihua
AU - Wang, Zengbin
AU - Ma, Xiaomei
AU - Li, Mingjie
AU - Li, Chaoxu
N1 - 3pk
24 mån, CC-BY-NC-ND
Mail till Zhang 15.2.2021 /LN
Mail till Xu 18.2.2021 /LN
PY - 2020/2/14
Y1 - 2020/2/14
N2 - Artificial asymmetric ionic membranes have attracted great interests in harvesting electricity from ubiquitous water activities, while mostly based on delicately-designed nanopores/nanochannels, either to harness saline water in mimic of cytomembranes or to harness moisture with carbon nanomaterials. Herein, fully biological asymmetric ionic aerogels were fabricated from biological oppositely-charged nanofibrils through a facile freeze-casting method. When exposing to moisture, these nanofibrils may be hydrated by capturing moisture and thus simulate the charged nanochannels for ion transport. Ion dissociation and diffusion ions would induce directional movement of charges, thereby leading to a potential up to 115 mV. With sustainability, biocompatibility and biodegradability, these biological nanogenerators may promise a low-cost and high-efficiency electricity harvest strategy from moist air, being capable of serving as self-powered wearable, biomedical and miniaturized electronic devices.
AB - Artificial asymmetric ionic membranes have attracted great interests in harvesting electricity from ubiquitous water activities, while mostly based on delicately-designed nanopores/nanochannels, either to harness saline water in mimic of cytomembranes or to harness moisture with carbon nanomaterials. Herein, fully biological asymmetric ionic aerogels were fabricated from biological oppositely-charged nanofibrils through a facile freeze-casting method. When exposing to moisture, these nanofibrils may be hydrated by capturing moisture and thus simulate the charged nanochannels for ion transport. Ion dissociation and diffusion ions would induce directional movement of charges, thereby leading to a potential up to 115 mV. With sustainability, biocompatibility and biodegradability, these biological nanogenerators may promise a low-cost and high-efficiency electricity harvest strategy from moist air, being capable of serving as self-powered wearable, biomedical and miniaturized electronic devices.
KW - Asymmetric ionic aerogel
KW - Biological nanofibrils
KW - Electricity harvest
KW - Moisture
U2 - 10.1016/j.nanoen.2020.104610
DO - 10.1016/j.nanoen.2020.104610
M3 - Article
SN - 2211-2855
VL - 71
JO - Nano Energy
JF - Nano Energy
M1 - 104610
ER -