Thermoelectric Study of La2Ti2-xNbxO7 (0≤x≤0.25) Ceramic Materials
A. C. Iyasara, F. U. Idu, E. O. Nwabineli, T. C. Azubuike, C. V. Arinze
Journal of Energy Research and Reviews · pp. 38–47 · Published 31 Dec 2020
10.9734/jenrr/2020/v6i430179Abstract
La2Ti2-xNbxO7 (x = 0.00, 0.05, 0.10, 0.15, 0.20, 0.25) powders were synthesised via solid state reaction method, followed by sintering at 1673 K in a reducing atmosphere of 5% H2/N2 gas. The crystal structure, microstructure and thermoelectric (TE) properties of the pure and Nb-doped La2Ti2O7 ceramics were investigated. All compositions were single phase with porous microstructures consistent with their low experimental densities. Thermoelectric results of Nb-doped compositions showed improved properties in comparison to pure La2Ti2O7, suggesting that cation doping has the potential to improve the thermoelectric properties. Generally, the TE results obtained are not suitable for thermoelectric applications. However, the high Seebeck coefficient (≥190 μV/K) and glass-like thermal conductivity ( ≤2.26 w / m.k ) values achieved have opened a new window for exploring the thermoelectric potentials of La2Ti2O7 and other related oxides.
Cited by 1
1 citation reported by external sources — individual citing-article records aren't available to list yet.
Related research
- Effect of Thermal Processing Conditions on the Physicochemical and Moisture-Sorption Characteristics of Two Cocoyam (Colocasia esculenta) Varieties — shares topic coverage
- Measurement of Thermal Conductivity and Specific Heat Capacity of Three Major Geomorphological Units in Akwa Ibom State, Nigeria — shares topic coverage
- Measurement and Modelling of Water Content Effects on Thermal Properties of Compressed Soil Building Blocks — shares topic coverage
- Experimental Investigation of Building Thermal Insulation from Agricultural By-products — shares topic coverage
- A Review in Graphene/Polymer Composites — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
1
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
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.