Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance

Ramesh Rajendran, Zahira Yaakob, Mohd Asri Mat Teridi, Muhammad Syukri Abd Rahaman, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV-visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p-n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55 mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08 mA/cm2) under simulated solar radiation at applied potential 1V/RHE.

Original languageEnglish
Pages (from-to)123-126
Number of pages4
JournalMaterials Letters
Volume133
DOIs
Publication statusPublished - 15 Oct 2014

Fingerprint

water splitting
Heterojunctions
heterojunctions
Spectroscopy
impedance
preparation
Water
solar radiation
Solar radiation
Charge carriers
Photocurrents
Field emission
spectroscopy
photocurrents
charge carriers
field emission
Nanoparticles
X ray diffraction
Thin films
nanoparticles

Keywords

  • Chemical synthesis
  • Nanocrystalline materials
  • Optical materials and properties
  • Photoelectrochemical measurement
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance. / Rajendran, Ramesh; Yaakob, Zahira; Mat Teridi, Mohd Asri; Abd Rahaman, Muhammad Syukri; Sopian, Kamaruzzaman.

In: Materials Letters, Vol. 133, 15.10.2014, p. 123-126.

Research output: Contribution to journalArticle

@article{e662f195fe8b4ea59c2e55f7b080d17a,
title = "Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance",
abstract = "The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV-visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p-n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55 mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08 mA/cm2) under simulated solar radiation at applied potential 1V/RHE.",
keywords = "Chemical synthesis, Nanocrystalline materials, Optical materials and properties, Photoelectrochemical measurement, X-ray diffraction",
author = "Ramesh Rajendran and Zahira Yaakob and {Mat Teridi}, {Mohd Asri} and {Abd Rahaman}, {Muhammad Syukri} and Kamaruzzaman Sopian",
year = "2014",
month = "10",
day = "15",
doi = "10.1016/j.matlet.2014.06.157",
language = "English",
volume = "133",
pages = "123--126",
journal = "Materials Letters",
issn = "0167-577X",
publisher = "Elsevier",

}

TY - JOUR

T1 - Preparation of nanostructured p-NiO/n-Fe2O3 heterojunction and study of their enhanced photoelectrochemical water splitting performance

AU - Rajendran, Ramesh

AU - Yaakob, Zahira

AU - Mat Teridi, Mohd Asri

AU - Abd Rahaman, Muhammad Syukri

AU - Sopian, Kamaruzzaman

PY - 2014/10/15

Y1 - 2014/10/15

N2 - The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV-visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p-n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55 mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08 mA/cm2) under simulated solar radiation at applied potential 1V/RHE.

AB - The n-type α-Fe2O3 nanoflakes are deposited on the FTO substrate by a hydrothermal method and modified with p-type NiO nanoparticles to enhance the photoelectrochemical water splitting performance. X-ray diffraction, field emission scanning electron microscopy, UV-visible and impedance spectroscopy analysis are carried out to study the structural, morphological, and electrochemical characteristics. Formation of p-n heterojunction is confirmed by an impedance spectroscopy analysis and explains the transport of charge carriers. NiO/α-Fe2O3 heterojunction thin film shows the enhancement in photocurrent density (1.55 mA/cm2) compared to the α-Fe2O3 nanoflakes alone (0.08 mA/cm2) under simulated solar radiation at applied potential 1V/RHE.

KW - Chemical synthesis

KW - Nanocrystalline materials

KW - Optical materials and properties

KW - Photoelectrochemical measurement

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84904580776&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904580776&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2014.06.157

DO - 10.1016/j.matlet.2014.06.157

M3 - Article

AN - SCOPUS:84904580776

VL - 133

SP - 123

EP - 126

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -