eprintid: 19612
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/96/12
datestamp: 2024-06-04 14:19:21
lastmod: 2024-06-04 14:19:21
status_changed: 2024-06-04 14:15:24
type: article
metadata_visibility: show
creators_name: Rahmawati, A.I.
creators_name: Wirzal, M.D.H.
creators_name: Sufian, S.
creators_name: Abdul Aziz, M.S.
creators_name: Salleh, M.S.
creators_name: Widayatno, T.
creators_name: Panjiyevich, O.S.
title: Iron dopant in zinc oxide nanorods-based photoanode using chemical bath deposition method for photoelectrochemical water-splitting
ispublished: pub
keywords: Charge transfer; Cost effectiveness; Deposition; Electrochemical impedance spectroscopy; Hydrogen production; Iron oxides; Light absorption; Nanorods; Optical properties; Photoelectrochemical cells; Solar energy; Solar power generation; Water absorption; Zinc oxide, Chemical bath deposition methods; Chemical-bath deposition; Cost effective; Hydrogen generations; IS costs; Photo-anodes; Photoelectrochemical water splitting; Photoelectrochemicals; Water splitting; Zinc oxide nanorods, II-VI semiconductors
note: cited By 0
abstract: Utilization of zinc oxide as a photoanode in photoelectrochemical (PEC) water splitting is cost-effective and environmentally friendly choices compared to noble metals, although some enhancements are required to address the limited light absorption and significant charge recombination. Iron as metal doping and nanorod structure, on the other hand, offers solutions to overcome these limitations. An in-depth study employing iron-doped zinc oxide nanorods using various concentrations of iron fabricated through a chemical bath deposition (CBD) method due to its high-quality results and scale-up feasibility, shows enhanced structures, electrical characteristics, optical properties, charge transfer speed, and overall effectiveness in converting solar energy to hydrogen. This dopant was effectively integrated into the photoanode, resulting in a reduction of the bandgap to 3.19 eV and the creation of nanorods that are both thinner and longer. The photocurrent density for the oxygen evolution reaction (OER) is 6 mA/cm2, and for the hydrogen evolution reaction (HER), it is 1.3 mA/cm2. Electrochemical Impedance Spectroscopy shows lower resistance and an improved diffusion coefficient, resulting in reduced energy requirements for hydrogen production. The solar-to-hydrogen efficiency is also reported at 4.7. This method shows potential for future progress and possible performance improvements. © 2024 Hydrogen Energy Publications LLC
date: 2024
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85194366496&doi=10.1016%2fj.ijhydene.2024.05.296&partnerID=40&md5=c0520bd20f45152e1c6c6d2599b1d622
id_number: 10.1016/j.ijhydene.2024.05.296
full_text_status: none
publication: International Journal of Hydrogen Energy
volume: 72
pagerange: 422-436
refereed: TRUE
citation:   Rahmawati, A.I. and Wirzal, M.D.H. and Sufian, S. and Abdul Aziz, M.S. and Salleh, M.S. and Widayatno, T. and Panjiyevich, O.S.  (2024) Iron dopant in zinc oxide nanorods-based photoanode using chemical bath deposition method for photoelectrochemical water-splitting.  International Journal of Hydrogen Energy, 72.  pp. 422-436.