Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3

Zihan Wei, Zhenyin Hai, Mohammad Karbalaei Akbari, Jie Hu, Lachlan Hyde, Stephen Depuydt, Francis Verpoort, Serge Zhuiykov

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Wafer-scale two-dimensional (2D) WO3 films with different thicknesses of 0.78, 1.4, 3.6, and 6.5 nm were fabricated on Au-SiO2/Si substrates using an atomic layer deposition technique. Their surface morphologies and chemical components were examined by field-emission scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were utilized for the analysis of the electrochemical behavior of 2D WO3 films towards hydrazine detection under various conditions. The effect of the thickness of 2D WO3 on the electrochemical performance was also analyzed. Significant improvement in hydrazine sensing capabilities was obtained for monolayer 2D WO3 (0.78 nm), demonstrating a high sensitivity of 1.24 μA μM−1 cm−2, a linear hydrazine concentration detection ranging from 0.2 to 2100 μM, great long-term stability, excellent selectivity and the lowest limit of detection of 0.015 μM reported to date, which provide a great potential method for materials fabrication in the development of high-performance hydrazine detection.

Original languageEnglish
Pages (from-to)266-272
Number of pages7
JournalChemElectroChem
Volume5
Issue number2
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

hydrazine
Hydrazine
Chronoamperometry
Atomic layer deposition
Electrochemical impedance spectroscopy
Field emission
Cyclic voltammetry
Surface morphology
Monolayers
Atomic force microscopy
X ray photoelectron spectroscopy
Fabrication
Scanning electron microscopy
Substrates

Keywords

  • 2D WO
  • atomic layer deposition
  • hydrazine
  • sensing performance

ASJC Scopus subject areas

  • Catalysis
  • Electrochemistry

Cite this

Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3. / Wei, Zihan; Hai, Zhenyin; Akbari, Mohammad Karbalaei; Hu, Jie; Hyde, Lachlan; Depuydt, Stephen; Verpoort, Francis; Zhuiykov, Serge.

In: ChemElectroChem, Vol. 5, No. 2, 01.01.2018, p. 266-272.

Research output: Contribution to journalArticle

Wei, Zihan ; Hai, Zhenyin ; Akbari, Mohammad Karbalaei ; Hu, Jie ; Hyde, Lachlan ; Depuydt, Stephen ; Verpoort, Francis ; Zhuiykov, Serge. / Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3. In: ChemElectroChem. 2018 ; Vol. 5, No. 2. pp. 266-272.
@article{ab50524c90004696a1729253b54f0d22,
title = "Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3",
abstract = "Wafer-scale two-dimensional (2D) WO3 films with different thicknesses of 0.78, 1.4, 3.6, and 6.5 nm were fabricated on Au-SiO2/Si substrates using an atomic layer deposition technique. Their surface morphologies and chemical components were examined by field-emission scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were utilized for the analysis of the electrochemical behavior of 2D WO3 films towards hydrazine detection under various conditions. The effect of the thickness of 2D WO3 on the electrochemical performance was also analyzed. Significant improvement in hydrazine sensing capabilities was obtained for monolayer 2D WO3 (0.78 nm), demonstrating a high sensitivity of 1.24 μA μM−1 cm−2, a linear hydrazine concentration detection ranging from 0.2 to 2100 μM, great long-term stability, excellent selectivity and the lowest limit of detection of 0.015 μM reported to date, which provide a great potential method for materials fabrication in the development of high-performance hydrazine detection.",
keywords = "2D WO, atomic layer deposition, hydrazine, sensing performance",
author = "Zihan Wei and Zhenyin Hai and Akbari, {Mohammad Karbalaei} and Jie Hu and Lachlan Hyde and Stephen Depuydt and Francis Verpoort and Serge Zhuiykov",
year = "2018",
month = "1",
day = "1",
doi = "10.1002/celc.201700968",
language = "English",
volume = "5",
pages = "266--272",
journal = "ChemElectroChem",
issn = "2196-0216",
publisher = "John Wiley and Sons Ltd",
number = "2",

}

TY - JOUR

T1 - Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3

AU - Wei, Zihan

AU - Hai, Zhenyin

AU - Akbari, Mohammad Karbalaei

AU - Hu, Jie

AU - Hyde, Lachlan

AU - Depuydt, Stephen

AU - Verpoort, Francis

AU - Zhuiykov, Serge

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Wafer-scale two-dimensional (2D) WO3 films with different thicknesses of 0.78, 1.4, 3.6, and 6.5 nm were fabricated on Au-SiO2/Si substrates using an atomic layer deposition technique. Their surface morphologies and chemical components were examined by field-emission scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were utilized for the analysis of the electrochemical behavior of 2D WO3 films towards hydrazine detection under various conditions. The effect of the thickness of 2D WO3 on the electrochemical performance was also analyzed. Significant improvement in hydrazine sensing capabilities was obtained for monolayer 2D WO3 (0.78 nm), demonstrating a high sensitivity of 1.24 μA μM−1 cm−2, a linear hydrazine concentration detection ranging from 0.2 to 2100 μM, great long-term stability, excellent selectivity and the lowest limit of detection of 0.015 μM reported to date, which provide a great potential method for materials fabrication in the development of high-performance hydrazine detection.

AB - Wafer-scale two-dimensional (2D) WO3 films with different thicknesses of 0.78, 1.4, 3.6, and 6.5 nm were fabricated on Au-SiO2/Si substrates using an atomic layer deposition technique. Their surface morphologies and chemical components were examined by field-emission scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were utilized for the analysis of the electrochemical behavior of 2D WO3 films towards hydrazine detection under various conditions. The effect of the thickness of 2D WO3 on the electrochemical performance was also analyzed. Significant improvement in hydrazine sensing capabilities was obtained for monolayer 2D WO3 (0.78 nm), demonstrating a high sensitivity of 1.24 μA μM−1 cm−2, a linear hydrazine concentration detection ranging from 0.2 to 2100 μM, great long-term stability, excellent selectivity and the lowest limit of detection of 0.015 μM reported to date, which provide a great potential method for materials fabrication in the development of high-performance hydrazine detection.

KW - 2D WO

KW - atomic layer deposition

KW - hydrazine

KW - sensing performance

UR - http://www.scopus.com/inward/record.url?scp=85036529841&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85036529841&partnerID=8YFLogxK

U2 - 10.1002/celc.201700968

DO - 10.1002/celc.201700968

M3 - Article

VL - 5

SP - 266

EP - 272

JO - ChemElectroChem

JF - ChemElectroChem

SN - 2196-0216

IS - 2

ER -