Fibrous platinum nanocubes modified indium tin oxide electrodes for effective electrooxidation of alcohols and sensitive detection of hydrazine

Xiaomei Chen, Aamna Balouch, Ali Umar Akrajas, Muhamad Mat Salleh, Munetaka Oyama

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Fibrous platinum nanocubes (f-PtNCs) were modified on indium tin oxide (ITO) substrates via a one-step in situ reduction treatment, and the thus-fabricated f-PtNCs/ITO electrode was applied to electrochemical measurements. As apparently recognized from the FE-SEM images, a large number of ultrafine branched-nanorods were decorated on the surfaces of PtNCs, implying some unique electrochemical characteristics different from those of spherical Pt nanoparticles (PtNPs). The results of electrochemical impedance spectroscopy and cyclic voltammetry revealed a lower charge transfer resistivity and a larger electrochemical active surface area of the f-PtNCs/ITO electrode in comparison with those of the PtNPs/ITO electrode. Owing to the superior electrocatalytic properties of the f-PtNCs/ITO electrode, the detection of hydrazine in neutral solutions using a differential pulse voltammetry brought about a good result with a linear response range of 0.1-50. μM and a detection limit of 40. nM. The present f-PtNCs/ITO electrode can be proposed as an interesting example of higher electrocatalytic performances of nano-fibrous structures on nanocrystals.

Original languageEnglish
JournalJournal of Electroanalytical Chemistry
DOIs
Publication statusAccepted/In press - 22 Feb 2016

Fingerprint

hydrazine
Electrooxidation
Hydrazine
Platinum
Tin oxides
Indium
Alcohols
Electrodes
Nanoparticles
Voltammetry
Nanorods
Electrochemical impedance spectroscopy
Nanocrystals
Cyclic voltammetry
indium tin oxide
Charge transfer

Keywords

  • Alcohol oxidation
  • Electroanalysis
  • Fibrous structures
  • Hydrazine detection
  • Platinum nanocubes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

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title = "Fibrous platinum nanocubes modified indium tin oxide electrodes for effective electrooxidation of alcohols and sensitive detection of hydrazine",
abstract = "Fibrous platinum nanocubes (f-PtNCs) were modified on indium tin oxide (ITO) substrates via a one-step in situ reduction treatment, and the thus-fabricated f-PtNCs/ITO electrode was applied to electrochemical measurements. As apparently recognized from the FE-SEM images, a large number of ultrafine branched-nanorods were decorated on the surfaces of PtNCs, implying some unique electrochemical characteristics different from those of spherical Pt nanoparticles (PtNPs). The results of electrochemical impedance spectroscopy and cyclic voltammetry revealed a lower charge transfer resistivity and a larger electrochemical active surface area of the f-PtNCs/ITO electrode in comparison with those of the PtNPs/ITO electrode. Owing to the superior electrocatalytic properties of the f-PtNCs/ITO electrode, the detection of hydrazine in neutral solutions using a differential pulse voltammetry brought about a good result with a linear response range of 0.1-50. μM and a detection limit of 40. nM. The present f-PtNCs/ITO electrode can be proposed as an interesting example of higher electrocatalytic performances of nano-fibrous structures on nanocrystals.",
keywords = "Alcohol oxidation, Electroanalysis, Fibrous structures, Hydrazine detection, Platinum nanocubes",
author = "Xiaomei Chen and Aamna Balouch and Akrajas, {Ali Umar} and {Mat Salleh}, Muhamad and Munetaka Oyama",
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T1 - Fibrous platinum nanocubes modified indium tin oxide electrodes for effective electrooxidation of alcohols and sensitive detection of hydrazine

AU - Chen, Xiaomei

AU - Balouch, Aamna

AU - Akrajas, Ali Umar

AU - Mat Salleh, Muhamad

AU - Oyama, Munetaka

PY - 2016/2/22

Y1 - 2016/2/22

N2 - Fibrous platinum nanocubes (f-PtNCs) were modified on indium tin oxide (ITO) substrates via a one-step in situ reduction treatment, and the thus-fabricated f-PtNCs/ITO electrode was applied to electrochemical measurements. As apparently recognized from the FE-SEM images, a large number of ultrafine branched-nanorods were decorated on the surfaces of PtNCs, implying some unique electrochemical characteristics different from those of spherical Pt nanoparticles (PtNPs). The results of electrochemical impedance spectroscopy and cyclic voltammetry revealed a lower charge transfer resistivity and a larger electrochemical active surface area of the f-PtNCs/ITO electrode in comparison with those of the PtNPs/ITO electrode. Owing to the superior electrocatalytic properties of the f-PtNCs/ITO electrode, the detection of hydrazine in neutral solutions using a differential pulse voltammetry brought about a good result with a linear response range of 0.1-50. μM and a detection limit of 40. nM. The present f-PtNCs/ITO electrode can be proposed as an interesting example of higher electrocatalytic performances of nano-fibrous structures on nanocrystals.

AB - Fibrous platinum nanocubes (f-PtNCs) were modified on indium tin oxide (ITO) substrates via a one-step in situ reduction treatment, and the thus-fabricated f-PtNCs/ITO electrode was applied to electrochemical measurements. As apparently recognized from the FE-SEM images, a large number of ultrafine branched-nanorods were decorated on the surfaces of PtNCs, implying some unique electrochemical characteristics different from those of spherical Pt nanoparticles (PtNPs). The results of electrochemical impedance spectroscopy and cyclic voltammetry revealed a lower charge transfer resistivity and a larger electrochemical active surface area of the f-PtNCs/ITO electrode in comparison with those of the PtNPs/ITO electrode. Owing to the superior electrocatalytic properties of the f-PtNCs/ITO electrode, the detection of hydrazine in neutral solutions using a differential pulse voltammetry brought about a good result with a linear response range of 0.1-50. μM and a detection limit of 40. nM. The present f-PtNCs/ITO electrode can be proposed as an interesting example of higher electrocatalytic performances of nano-fibrous structures on nanocrystals.

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