Issue 10, 2020
From the journal:

Energy & Environmental Science

Identification of water-infiltration-induced electrical energy generation by ionovoltaic effect in porous CuO nanowire films†

Huding Jin,a   Sun Geun Yoon,a   Won Hyung Lee,a   Yong Hyun Cho,a   Junghyup Han,a   Junwoo Park*b  and  Youn Sang Kim ORCID logo *acd  

* Corresponding authors

a Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Gwanak-gu, Seoul, Republic of Korea

b Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA
E-mail: junwoo_park@fas.harvard.edu

c School of Chemical and Biological Engineering, College of Engineering, Seoul National University, Gwanak-gu, Seoul, Republic of Korea
E-mail: younskim@snu.ac.kr

d Advanced Institute of Convergence Technology, 145 Gwanggyo-ro, Yeongtong-gu, Suwon, Republic of Korea

Abstract

We verified the origin of water-infiltration-induced electricity generation by an ionovoltaic effect, specifically, ion–surface interaction induced potential asymmetry in porous structures. When 20 μl of water (NaCl, 0.1 M) infiltrates into a porous CuO nanowire film, electrical power of ∼0.45 V and ∼0.23 μA is produced for 40 minutes. Moreover, a method of proportionally amplifying electricity is presented, and the practicability is shown by turning on an LED with infiltration of eight seawater droplets.

Graphical abstract: Identification of water-infiltration-induced electrical energy generation by ionovoltaic effect in porous CuO nanowire films

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/D0EE02190C
Article type
Communication
Submitted
11 Jul 2020
Accepted
02 Sep 2020
First published
03 Sep 2020

Energy Environ. Sci., 2020,13, 3432-3438

Permissions

Request permissions

Identification of water-infiltration-induced electrical energy generation by ionovoltaic effect in porous CuO nanowire films

H. Jin, S. G. Yoon, W. H. Lee, Y. H. Cho, J. Han, J. Park and Y. S. Kim, Energy Environ. Sci., 2020, 13, 3432 DOI: 10.1039/D0EE02190C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements