Citation: Li-Xiang Zhang, Yu-Bin Zheng, Sheng-Lin Cai, Xiao-Hong Cao, Yao-Qun Li. Modulating ion current rectification generating high energy output in a single glass conical nanopore channel by concentration gradient[J]. Chinese Chemical Letters, ;2015, 26(1): 43-46. doi: 10.1016/j.cclet.2014.08.001 shu

Modulating ion current rectification generating high energy output in a single glass conical nanopore channel by concentration gradient

1.
a Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;
b Shenzhen Haibin Pharmaceutical Co.
b Shenzhen Haibin Pharmaceutical Co., Ltd., Shenzhen 518081, China

Corresponding author: Yao-Qun Li,
Received Date: 11 April 2014
Available Online: 18 July 2014
Fund Project: We are grateful for the financial support from the National Natural Science Foundation of China (Nos. 21375111, 21127005,20975084) (Nos. 21375111, 21127005,20975084) the Ph.D. Programs Foundation of the Ministry of Education of China (No. 20110121110011). (No. 20110121110011)

Inspired by biological systems that have the inherent skill to generate considerable bioelectricity from the salt content in fluids with highly selective ion channels and pumps on cellmembranes, herein, a fully abiotic, single glass conical nanopores energy-harvesting is demonstrated. Ion current rectification (ICR) in negatively charged glass conical nanopores is shown to be controlled by the electrolyte concentration gradient depending on the direction of ion diffusion. The degree of ICR is enhanced with the increasing forward concentration difference. An unusual rectification inversion is observed when the concentration gradient is reversely applied. The maximum power output with the individual nanopore approaches 10⁴ pW. This facile and cost-efficient energy-harvesting system has the potential to power tiny biomedical devices or construct future clean-energy recovery plants.
- Glass conical nanopore channel,
- Ion current rectification,
- Concentration gradient,
- Energy generation
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沈阳化工大学材料科学与工程学院沈阳 110142