View : 96 Download: 0

Most facile synthesis of Zn-Al:LDHs nanosheets at room temperature via environmentally friendly process and their high power generation by flexoelectricity

Title
Most facile synthesis of Zn-Al:LDHs nanosheets at room temperature via environmentally friendly process and their high power generation by flexoelectricity
Authors
Choi M.-J.Eom J.-H.Shin S.-H.Nah J.Choi J.-S.Song H.-A.An H.Kim H.Y.Pammi S.V.N.Choi G.Choy J.-H.Swathi I.Jella V.Park B.-J.Choi J.Yoon S.-G.
Ewha Authors
이종락
Issue Date
2018
Journal Title
Materials Today Energy
ISSN
2468-6069JCR Link
Citation
Materials Today Energy vol. 10, pp. 254 - 263
Keywords
Environmentally friendly synthesisFlexoelectricityHigh performance of energy harvestingLDH nanosheets-based generatorsZn-Al:LDH nanosheets
Publisher
Elsevier Ltd
Indexed
SCOPUS scopus
Document Type
Article
Abstract
We report the zinc/aluminum layered double hydroxides (Zn-Al:LDHs) nanosheets that were most facilely synthesized at room temperature via an environmentally friendly process and demonstrate their ability to convert mechanical deformation into an electrical stimulus by flexoelectricity. The 1 μm-thick Zn-Al:LDH nanosheets were most facilely synthesized for 2 h at room temperature after dipping the Al (10 at%)-doped ZnO (10AZO) (60 nm)/Au (10 nm)/10AZO (30 nm)-coated PET samples into the carbonated water that the CO2 in air was naturally captured in the water at room temperature. Based on the nanogenerators fabricated via facilely synthesized nanosheets, we observe a linear relationship between the output voltage and current generated by the centrosymmetric LDHs nanosheets and the curvature from bending, which is a direct evidence for flexoelectricity. We demonstrated the flexoelectric coefficient of our LDH nanosheet-based flexoelectric generators of 1.8 ± 0.35 μCm−1. The output power generated from the LDH nanosheet-based generators via a pushing shows higher performance than that from state-of-the-art flexoelectric PZT-MWCNT-based and piezoelectric BaTiO3 nanotubes-based generators. These findings could pave the way to the practical exploitation for environmentally friendly synthesis of LDH nanosheets using the CO2 in air and for harvesting the energy via LDH nanosheets-based generators. © 2018 Elsevier Ltd
DOI
10.1016/j.mtener.2018.10.006
Appears in Collections:
연구기관 > 수리과학연구소 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE