Fe and Co-doped (Ba, Ca)TiO<sub>3</sub> Perovskite as Potential Electrocatalysts for Glutamate Sensing

Authors

  • Nicha Sato Kasetsart University
  • Makito Haruta Nara Institute of Science and Technology
  • Kiyotaka Sasagawa Nara Institute of Science and Technology
  • Jun Ohta Nara Institute of Science and Technology
  • Oratai Jongprateep Kasetsart University

DOI:

https://doi.org/10.4186/ej.2019.23.6.265

Keywords:

barium titanate, calcium titanate, doping, electrocatalysis, glutamate, electrochemical sensor

Abstract

Barium titanate (BaTiO3) and calcium titanate (CaTiO3) are renown perovskite-structured dielectric materials. Nevertheless, utilization of BaTiO3 and CaTiO3 in sensing applications has not been extensive. This study, therefore, aims at examining potential usage of BaTiO3 and CaTiO3 as enzyme-less sensors.  BaTiO3, CaTiO3, Fe-doped BaTiO3, Co-doped BaTiO3, Fe-doped BaTiO3, and Co-doped CaTiO3 (with Fe and Co 5 at%) were synthesized by solution combustion technique, compositionally and microstructurally examined, and tested for their electrocatalytic activities. All powders consisted of submicrometer-sized particles. Measurements of electrocatalytic activities in 0.01 M glutamate solution by cyclic voltammetry were performed. It was found that oxidation peaks occurred at applied voltage close to 0.6 V. Peak currents, which denoted electrocatalytic performance, were prominent in doped powders. Electrocatalytic activities of the powders were discussed with respect to chemical composition, microstructure, and electronic characteristic of the materials.

Downloads

Download data is not yet available.

Author Biographies

Nicha Sato
Google Scholar

Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand

Makito Haruta
Google Scholar

Division of Materials Science, Nara Institute of Science and Technology, Nara, Japan

Kiyotaka Sasagawa
Google Scholar

Division of Materials Science, Nara Institute of Science and Technology, Nara, Japan

Jun Ohta
Google Scholar

Division of Materials Science, Nara Institute of Science and Technology, Nara, Japan

Oratai Jongprateep
Google Scholar

Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand

Materials Innovation Center, Faculty of Engineering, Kasetsart University, Bangkok, Thailand

Downloads

Published In
Vol 23 No 6, Nov 30, 2019
How to Cite
[1]
N. Sato, M. Haruta, K. Sasagawa, J. Ohta, and O. Jongprateep, “Fe and Co-doped (Ba, Ca)TiO<sub>3</sub> Perovskite as Potential Electrocatalysts for Glutamate Sensing”, Eng. J., vol. 23, no. 6, pp. 265-278, Nov. 2019.
Cited By
Find in Google Scholar

Authors who publish with Engineering Journal agree to transfer all copyright rights in and to the above work to the Engineering Journal (EJ)'s Editorial Board so that EJ's Editorial Board shall have the right to publish the work for nonprofit use in any media or form. In return, authors retain: (1) all proprietary rights other than copyright; (2) re-use of all or part of the above paper in their other work; (3) right to reproduce or authorize others to reproduce the above paper for authors' personal use or for company use if the source and EJ's copyright notice is indicated, and if the reproduction is not made for the purpose of sale.