Tailoring morphological characteristics of zinc oxide using a one-step hydrothermal method for photoelectrochemical water splitting application

Marlinda, Ab Rahman and Yusoff, Norazriena and Pandikumar, Alagarsamy and Huang, N.M. and Akbarzadeh, Omid and Sagadevan, Suresh and Wahab, Yasmin Abdul and Johan, Mohd Rafie (2019) Tailoring morphological characteristics of zinc oxide using a one-step hydrothermal method for photoelectrochemical water splitting application. International Journal of Hydrogen Energy, 44 (33). pp. 17535-17543. ISSN 0360-3199, DOI https://doi.org/10.1016/j.ijhydene.2019.05.109.

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Official URL: https://doi.org/10.1016/j.ijhydene.2019.05.109


In the present paper describe the zinc oxide (ZnO) with various morphologies have been synthesized using the one-step hydrothermal method, in which the growth of ZnO nanostructures are significantly tailored by adjusting the pH level between 9 and 12 using 0.1 M Sodium hydroxide (NaOH). Significant results reveal the morphological properties of ZnO nanostructures varied with different pH values with the formation of ZnO nanostructures have different morphological such as a baton, star, flower, and rod-like structures. The present results show the rod-like structure of ZnO nanostructures exhibits the highest photocurrent density of 746.61 μAcm−2 (at 1.23 V vs RHE) under simulated solar AM 1.5G illumination in Potassium hydroxide (KOH) medium, also the other morphologies. The dependent of the photoelectrochemical (PEC) water splitting properties on the different morphological of ZnO nanostructures are studied. Achieving the morphological evolution mechanism has become one of the method to obtain the production of the hydrogen growth regime used for solar energy conversion and their applied storage potentials. The application of the ZnO nanostructures for PEC water splitting was proposed with the adoption of screen-printed carbon electrodes (SPCEs). These are to quantify the best degree of the highest photocurrent density with one-step tailoring with an ideal modeling system to enhance PEC water splitting performances. Thus, the screen-printed carbon electrodes (SPEs) has been used as an alternative method for fabrication and photoelectrodes testings. © 2019 Hydrogen Energy Publications LLC

Item Type: Article
Funders: Science Fund grant from the Ministry of Energy, Science, Technology, Environment and Climate Change ( 03-01-03-SF1133 ), Research University grant from University of Malaya ( RU004-2017 )
Uncontrolled Keywords: Metal oxide; Electrocatalysis; Photoelectrocatalysts; Hydrothermal; Energy conversion
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Department of Physics
Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 19 Mar 2020 04:26
Last Modified: 19 Mar 2020 04:26
URI: http://eprints.um.edu.my/id/eprint/24045

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