Heterogeneous Electrospinning Nanofiber Membranes with pH-regulated Ion Gating for Tunable Osmotic Power Harvesting

被引：62

作者：

Ling, Haoyang ^{[1
,2
]}

Xin, Weiwen ^{[1
,2
]}

Qian, Yongchao ^{[1
,3
]}

He, Xiaofeng ^{[1
]}

Yang, Linsen ^{[1
]}

Chen, Weipeng ^{[1
]}

Wu, Yadong ^{[1
,2
]}

Du, Huaqing ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Kong, Xiang-Yu ^{[1
,2
]}

Jiang, Lei ^{[1
,2
]}

Wen, Liping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, CAS Key Lab Bioinspired Mat & Interfacial Sci, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China

[3] Northwestern Polytech Univ, Sch Chem & Chem Engn, Shaanxi Key Lab Macromol Sci & Technol, Xian 710072, Shaanxi, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Electrospinning; Heterogeneous Nanofiber Membrane; Ion Gating; Osmotic Energy Harvesting; Tunable Energy Conversion; SYNTHETIC NANOPORES; PERMEATION; TRANSPORT; STRATEGY; CHANNELS;

D O I：

10.1002/anie.202212120

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Biological ion channels existing in organisms are critical for many biological processes. Inspired by biological ion channels, the heterogeneous electrospinning nanofiber membranes (HENM) with functional ion channels are constructed by electrospinning technology. The HENM successfully realizes ion-gating effects, which can be used for tunable energy conversions. Introduction of pyridine and carboxylic acid groups into the HENM plays an important role in generating unique and stable ion transport behaviors, in which gates become alternative states of open and close, responding to symmetric/asymmetric pH stimulations. Then we used the HENM to convert osmotic energy into electric energy which reach a maximum value up to 12.34 W m(-2) and the output power density of HENM-based system could be regulated by ion-gating effects. The properties of the HENM provide widespread potentials in application of smart nanofluidic devices, energy conversion, and water treatment.

引用

页数：7