Related Experiment Video
Updated: Jan 27, 2026

Preparation and Evaluation of Hybrid Composites of Chemical Fuel and Multi-walled Carbon Nanotubes in the Study of Thermopower Waves
Published on: April 10, 2015
Au/NiO/Multi-Walled Carbon Nanotubes Nanocomposite Electrode for Nitrite Electrochemical Determination
Hao Yong Yin1, Yue Wan1, Ling Wang2
1College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, P. R. China.
Abstract:
Gold (Au)/nickel oxide (NiO) nanocomposites were loaded on multi-walled carbon nanotubes (MWC-NTs) utilizing a relatively facile and directly electrochemical deposition method. Transmission electron microscopy (TEM) reveals that the nanocomposites of Au/NiO were successfully covered on the MWCNTs surface. Scanning transmission electron microscopy (STEM) demonstrated the presence of the Au, Ni and O element. The electrochemical performance of the proposed electrode was investigated via cyclic voltammetry (CV) and chronoamperometry. The results showed that Au/NiO/MWCNTs exposed an obvious current response toward nitrite and the anodic peak current varied linearly with nitrite concentration ranging from 0.1 μM to 10 μM (R ═ 0.99865) accompanying with a low detection limit of 0.02 μM. The Au/NiO/MWCNTs electrode also showed great stability and reproducibility for nitrite detection. Moreover, it also displayed good performance for nitrite detection in tap water suggesting its feasibility on specific application.
More Related Videos
09:28Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes
Published on: January 10, 2017
11:19Synthesis of Multi-walled Carbon Nanotubes Modified with Silver Nanoparticles and Evaluation of Their Antibacterial Activities and Cytotoxic Properties
Published on: May 10, 2018
Related Concept Videos
What is an Electrochemical Gradient?
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
Determining the pH of Salt Solutions
Standard Electrode Potentials
The Carbon Cycle
Carbon Skeletons
Plant Cell Wall