The inherent electrochemistry of nickel/nickel-oxide nanoparticles

The direct detection of nanoparticles is at the forefront of research owing to their environmental and toxicological applications. Herein, we studied the inherent electrochemistry of Ni and NiO nanoparticles and proposed a simple and direct electrochemical method for the determination of the concent...

Full description

Saved in:
Bibliographic Details
Main Authors: Giovanni, Marcella, Ambrosi, Adriano, Pumera, Martin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96507
http://hdl.handle.net/10220/13034
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-96507
record_format dspace
spelling sg-ntu-dr.10356-965072020-03-07T12:34:42Z The inherent electrochemistry of nickel/nickel-oxide nanoparticles Giovanni, Marcella Ambrosi, Adriano Pumera, Martin School of Physical and Mathematical Sciences The direct detection of nanoparticles is at the forefront of research owing to their environmental and toxicological applications. Herein, we studied the inherent electrochemistry of Ni and NiO nanoparticles and proposed a simple and direct electrochemical method for the determination of the concentrations of both nickel (Ni) and nickel oxide (NiO) nanoparticles in alkaline solution. A highly sensitive voltammetry technique was used to measure the oxidative signal of Ni(OH)2 that formed spontaneously on the surface of Ni and NiO nanoparticles in alkaline media. Detection limits of 220 μg mL−1 for Ni and 13 μg mL−1 for NiO nanoparticles were obtained. Ni and NiO nanoparticles are used as electrode modifiers or as electrochemical signal labels in various biosensing applications. Therefore, methods to rapidly quantify the amount of Ni and NiO nanoparticles are of widespread potential use. Metode elektrokimia sederhana untuk menentukan konsentrasi nanopartikel nikel dan nikel(II) oksida (Ni, NiO) dalam larutan alkali diajukan dalam artikel ini. Teknik voltametri pulsa diferensial digunakan untuk melakukan pengukuran sensitif terhadap sinyal oksidasi Ni(OH)2 yang terbentuk secara spontan pada permukaan nanopartikel Ni dan NiO dalam media alkali. Limit deteksi yang dicapai untuk Ni adalah 220 μg mL−1 dan untuk NiO adalah 13 μg mL−1. Nanopartikel Ni dan NiO dapat digunakan untuk memodifikasi elektrode atau sebagai label sinyal elektrokimia untuk diaplikasikan dalam sensor biologi. Oleh sebab itu, metode untuk mengkuantifikasi jumlah nanopartikel Ni dan NiO memiliki potensi penerapan. 2013-08-06T03:26:53Z 2019-12-06T19:31:34Z 2013-08-06T03:26:53Z 2019-12-06T19:31:34Z 2012 2012 Journal Article Giovanni, M., Ambrosi, A.,& Pumera, M. (2012). The Inherent Electrochemistry of Nickel/Nickel-Oxide Nanoparticles. Chemistry - An Asian Journal, 7(4), 702-706. 1861-4728 https://hdl.handle.net/10356/96507 http://hdl.handle.net/10220/13034 10.1002/asia.201101024 en Chemistry - an Asian journal
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
description The direct detection of nanoparticles is at the forefront of research owing to their environmental and toxicological applications. Herein, we studied the inherent electrochemistry of Ni and NiO nanoparticles and proposed a simple and direct electrochemical method for the determination of the concentrations of both nickel (Ni) and nickel oxide (NiO) nanoparticles in alkaline solution. A highly sensitive voltammetry technique was used to measure the oxidative signal of Ni(OH)2 that formed spontaneously on the surface of Ni and NiO nanoparticles in alkaline media. Detection limits of 220 μg mL−1 for Ni and 13 μg mL−1 for NiO nanoparticles were obtained. Ni and NiO nanoparticles are used as electrode modifiers or as electrochemical signal labels in various biosensing applications. Therefore, methods to rapidly quantify the amount of Ni and NiO nanoparticles are of widespread potential use. Metode elektrokimia sederhana untuk menentukan konsentrasi nanopartikel nikel dan nikel(II) oksida (Ni, NiO) dalam larutan alkali diajukan dalam artikel ini. Teknik voltametri pulsa diferensial digunakan untuk melakukan pengukuran sensitif terhadap sinyal oksidasi Ni(OH)2 yang terbentuk secara spontan pada permukaan nanopartikel Ni dan NiO dalam media alkali. Limit deteksi yang dicapai untuk Ni adalah 220 μg mL−1 dan untuk NiO adalah 13 μg mL−1. Nanopartikel Ni dan NiO dapat digunakan untuk memodifikasi elektrode atau sebagai label sinyal elektrokimia untuk diaplikasikan dalam sensor biologi. Oleh sebab itu, metode untuk mengkuantifikasi jumlah nanopartikel Ni dan NiO memiliki potensi penerapan.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Giovanni, Marcella
Ambrosi, Adriano
Pumera, Martin
format Article
author Giovanni, Marcella
Ambrosi, Adriano
Pumera, Martin
spellingShingle Giovanni, Marcella
Ambrosi, Adriano
Pumera, Martin
The inherent electrochemistry of nickel/nickel-oxide nanoparticles
author_sort Giovanni, Marcella
title The inherent electrochemistry of nickel/nickel-oxide nanoparticles
title_short The inherent electrochemistry of nickel/nickel-oxide nanoparticles
title_full The inherent electrochemistry of nickel/nickel-oxide nanoparticles
title_fullStr The inherent electrochemistry of nickel/nickel-oxide nanoparticles
title_full_unstemmed The inherent electrochemistry of nickel/nickel-oxide nanoparticles
title_sort inherent electrochemistry of nickel/nickel-oxide nanoparticles
publishDate 2013
url https://hdl.handle.net/10356/96507
http://hdl.handle.net/10220/13034
_version_ 1681048585512157184