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https://hdl.handle.net/10356/96507
Title: | The inherent electrochemistry of nickel/nickel-oxide nanoparticles | Authors: | Giovanni, Marcella Ambrosi, Adriano Pumera, Martin |
Issue Date: | 2012 | Source: | Giovanni, M., Ambrosi, A.,& Pumera, M. (2012). The Inherent Electrochemistry of Nickel/Nickel-Oxide Nanoparticles. Chemistry - An Asian Journal, 7(4), 702-706. | Series/Report no.: | Chemistry - an Asian journal | Abstract: | 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. | URI: | https://hdl.handle.net/10356/96507 http://hdl.handle.net/10220/13034 |
ISSN: | 1861-4728 | DOI: | 10.1002/asia.201101024 | Schools: | School of Physical and Mathematical Sciences | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | SPMS Journal Articles |
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