Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity

This research synthesised zinc oxide (ZnO) structure by a hydrothermal method. ZnO samples were prepared using different molarities of zinc (Zn) precursor, ranging from 0.10 to 0.16 M. Structural and morphological properties were characterised by X-ray diffraction (XRD) and scanning electron microsc...

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Published in:Condensed Matter
Main Author: Mohamed R.; Anuar M.S.A.
Format: Article
Language:English
Published: MDPI 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144730384&doi=10.3390%2fcondmat7040071&partnerID=40&md5=6d58ae7fee4bf5efe17c9976af8f255a
id 2-s2.0-85144730384
spelling 2-s2.0-85144730384
Mohamed R.; Anuar M.S.A.
Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
2022
Condensed Matter
7
4
10.3390/condmat7040071
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144730384&doi=10.3390%2fcondmat7040071&partnerID=40&md5=6d58ae7fee4bf5efe17c9976af8f255a
This research synthesised zinc oxide (ZnO) structure by a hydrothermal method. ZnO samples were prepared using different molarities of zinc (Zn) precursor, ranging from 0.10 to 0.16 M. Structural and morphological properties were characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD patterns show that all samples are prominently grown along the three diffraction peaks at (001), (002) and (101) planes. The ZnO sample with 0.16 M Zn precursor has the highest peak orientation along the (002) plane. The average crystallite sizes for the ZnO structure with 0.10, 0.12, 0.14 and 0.16 M precursor are 48, 51, 49 and 31 nm, respectively. ZnO sample prepared at 0.16 M has the smallest crystallite size and the lowest tensile strain. The SEM images show that the ZnO samples are randomly oriented with average diameters of 209, 325, 295 and 348 nm when using 0.10, 0.12, 0.14 and 0.16 M of the precursor, respectively. The electrochemical behaviour of the ZnO structure was determined through cyclic voltammetry (CV) measurement. In the CV curve, the calculated specific capacitance for the ZnO sample prepared at 0.16 M has the highest value of 3.87 Fg−1. The ZnO sample prepared at 0.10 M has the lowest specific capacitance value of 2.11 Fg−1. Therefore, changing the molarity of the Zn precursor could change the structural and electrochemical properties. ZnO sample prepared with 0.16 M of the precursor provides the optimal result. © 2022 by the authors.
MDPI
24103896
English
Article
All Open Access; Gold Open Access
author Mohamed R.; Anuar M.S.A.
spellingShingle Mohamed R.; Anuar M.S.A.
Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
author_facet Mohamed R.; Anuar M.S.A.
author_sort Mohamed R.; Anuar M.S.A.
title Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
title_short Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
title_full Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
title_fullStr Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
title_full_unstemmed Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
title_sort Structural and Electrochemical Behaviors of ZnO Structure: Effect of Different Zinc Precursor Molarity
publishDate 2022
container_title Condensed Matter
container_volume 7
container_issue 4
doi_str_mv 10.3390/condmat7040071
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144730384&doi=10.3390%2fcondmat7040071&partnerID=40&md5=6d58ae7fee4bf5efe17c9976af8f255a
description This research synthesised zinc oxide (ZnO) structure by a hydrothermal method. ZnO samples were prepared using different molarities of zinc (Zn) precursor, ranging from 0.10 to 0.16 M. Structural and morphological properties were characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD patterns show that all samples are prominently grown along the three diffraction peaks at (001), (002) and (101) planes. The ZnO sample with 0.16 M Zn precursor has the highest peak orientation along the (002) plane. The average crystallite sizes for the ZnO structure with 0.10, 0.12, 0.14 and 0.16 M precursor are 48, 51, 49 and 31 nm, respectively. ZnO sample prepared at 0.16 M has the smallest crystallite size and the lowest tensile strain. The SEM images show that the ZnO samples are randomly oriented with average diameters of 209, 325, 295 and 348 nm when using 0.10, 0.12, 0.14 and 0.16 M of the precursor, respectively. The electrochemical behaviour of the ZnO structure was determined through cyclic voltammetry (CV) measurement. In the CV curve, the calculated specific capacitance for the ZnO sample prepared at 0.16 M has the highest value of 3.87 Fg−1. The ZnO sample prepared at 0.10 M has the lowest specific capacitance value of 2.11 Fg−1. Therefore, changing the molarity of the Zn precursor could change the structural and electrochemical properties. ZnO sample prepared with 0.16 M of the precursor provides the optimal result. © 2022 by the authors.
publisher MDPI
issn 24103896
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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