Supercapacitive performance of C-axis preferentially oriented TiO2 nanotube arrays decorated with MoO3 nanoparticles

Highly ordered TiO2 nanotube arrays (TNTAs) have received great attention owing to their high surface area, stability and direct transport pathways. The TNTAs, modified with other materials exhibiting enhanced conductivity and capacitance have been considered to be promising anode materials for supe...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2023-04, Vol.25 (14), p.10063-10070
Main Authors: Wang, Liujie, Li, Pengfa, Yang, Jie, Ma, Zhihua, Zhang, Laiping
Format: Article
Language:English
Subjects:
Anodes
Arrays
Capacitance
Carbon
Crystallography
Electrochemical analysis
Electrode materials
Electrodes
Electrons
Field emission microscopy
High resolution electron microscopy
Microscopy
Molybdenum trioxide
Nanoparticles
Nanotubes
Photoelectrons
Surface stability
Titanium dioxide
X ray photoelectron spectroscopy
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Highly ordered TiO2 nanotube arrays (TNTAs) have received great attention owing to their high surface area, stability and direct transport pathways. The TNTAs, modified with other materials exhibiting enhanced conductivity and capacitance have been considered to be promising anode materials for supercapacitors. In this work, MoO3/carbon@different crystallography-oriented TiO2 nanotube arrays (CTNTAs) were synthesized by an anodizing method and electrochemical deposition. The structure and morphology of the samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS). The electrochemical performance was tested by cyclic voltammogram (CV) and galvanostatic charge-discharge (GDC) tests. The results indicated that MoO3/carbon@(004) preferentially oriented TiO2 nanotube array electrodes have the advantages of combining p-TNTAs and MoO3 nanoparticles and exhibit high electrochemical performance and cycling stability. The highest specific capacitance of the MoO3-p-CTNTA electrode achieved is 194 F g−1 at a current density of 1 A g−1.
ISSN:1463-9076
1463-9084
DOI:10.1039/d2cp05075g