Electrochemical Impedance of Hydrogenated Phases of ZnO and CuO Nanoparticles for Electrode Applications
L. I. Menegbo, J. L. Konne, N. Boisa
Asian Journal of Physical and Chemical Sciences · pp. 1–6 · Published 22 Jun 2020
10.9734/ajopacs/2020/v8i330116Abstract
The Electrochemical Impedance Spectroscopy (EIS) measurements of Sol-gel synthesized ZnO, CuO and their respective hydrogenated phases (ZnO:H and CuO:H) for a proton-type battery model has been reported for the first time. The XRD patterns confirmed that CuO and ZnO were phase pure with minor impurities. However, that of CuO:H showed mixed phases of CuO and Cu2O with the later appearing prominent. The estimated particle sizes of ZnO, ZnO:H, CuO and CuO:H obtained using Scherrers’ equation were 17.83, 17.75, 21.63 and 15.42 nm respectively, showing remarkable particle size reductions upon hydrogenation as oxygen vacancies were substituted with smaller hydrogen ions. Nyquist plots from the EIS experimental data recorded over a frequency range of 100 kHz – 5 mHz showed expected flat semicircles at the high frequency region and straight lines at the low frequency regions while resistance estimations from the intercepts of the Bode plots were 12.10, 7.80, 16.00 and 10.80 Ω for ZnO, ZnO:H, CuO and CuO:H respectively. It also indicated high gain margins suggesting impressive electrochemical properties for battery applications.
References (7)
- 1 Excitonic structure and absorption coefficient measurements of ZnO single crystal epitaxial films deposited by pulsed laser deposition [DOI]
- 2 Synthesis and Investigation of Antimicrobial Activity of Cu2O Nanoparticles/Zeolite [DOI]
- 3 Technical feasibility of a proton battery with an activated carbon electrode [DOI]
- 4 ZnO Nanocrystals as Anode Electrodes for Lithium-Ion Batteries [DOI]
- 5 Sol-Gel Syntheses of Zinc Oxide and Hydrogenated Zinc Oxide (ZnO:H) Phases [DOI]
- 6 Simultaneous detection of l -aspartic acid and glycine using wet-chemically prepared Fe 3 O 4 @ZnO nanoparticles: real sample analysis [DOI]
- 7 Process dependence of H passivation and doping in H-implanted ZnO [DOI]
Cited by 2
Debika Devi Thongam, S. Ullattil · Results in Engineering · 2026
Showing 1 of 2 known citations — external sources report more than can currently be individually listed.
Related research
- Physical Quality Responses of Cocoa Beans to Inclusion and Exclusion of Placenta and Varied Fermentation Periods — shares topic coverage
- Angular and Thermal Dependence of Defect Modes in Si-Based One-dimensional Photonic Crystal — shares topic coverage
- Determination of S-parameter for Unimplanted and Ion-implanted 3C-SiC and 6H-SiC Using Diffusion Trapping Model — shares topic coverage
- Purification and Characterization of Carbon Nanotubes and Prospects for the Formation of Magnetic Semiconductor via Iron Incorporation — shares topic coverage
- Amniotic Band Sequence Syndrome – A Rare Disorder — shares topic coverage
Article metrics
Real usage data collected on this platform.
41
Page views
0
PDF downloads
5
Outbound clicks
2
Citations
Views over time
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
Traffic sources
Referring site, by host.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.