scholarly journals Oxide Thermoelectric Materials for High Temperature Power Generation

2012 ◽  
Author(s):  
Xueqin Chen
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Materials ◽  
Oxide Thermoelectric Materials

scholarly journals Understanding the asymmetrical thermoelectric performance for discovering promising thermoelectric materials

2019 ◽  
Vol 5 (6) ◽  
pp. eaav5813 ◽  
Author(s):  
Hangtian Zhu ◽  
Jun Mao ◽  
Zhenzhen Feng ◽  
Jifeng Sun ◽  
Qing Zhu ◽  
...  
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Thermoelectric Materials ◽  
The Other ◽  
Thermoelectric Performance ◽  
Cold Side ◽  
P Type ◽  
The Relationship

Thermoelectric modules, consisting of multiple pairs of n- and p-type legs, enable converting heat into electricity and vice versa. However, the thermoelectric performance is often asymmetrical, in that one type outperforms the other. In this paper, we identified the relationship between the asymmetrical thermoelectric performance and the weighted mobility ratio, a correlation that can help predict the thermoelectric performance of unreported materials. Here, a reasonably high ZT for the n-type ZrCoBi-based half-Heuslers is first predicted and then experimentally verified. A high peak ZT of ~1 at 973 K can be realized by ZrCo0.9Ni0.1Bi0.85Sb0.15. The measured heat-to-electricity conversion efficiency for the unicouple of ZrCoBi-based materials can be as high as ~10% at the cold-side temperature of ~303 K and at the hot-side temperature of ~983 K. Our work demonstrates that the ZrCoBi-based half-Heuslers are highly promising for the application of mid- and high-temperature thermoelectric power generation.

scholarly journals Review on texturization effects in thermoelectric oxides

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Rishi Prasad ◽  
Shekhar D. Bhame
Keyword(s):  
High Temperature ◽  
Energy Harvesting ◽  
Transport Properties ◽  
Thermoelectric Materials ◽  
Energy Sources ◽  
New Materials ◽  
Thermoelectric Conversion ◽  
Thermoelectric Oxides ◽  
Oxide Thermoelectric Materials ◽  
Thermoelectric Parameters

AbstractSustainable energy sources and energy-harvesting technologies have been researched for decades. Thermoelectric conversion is currently one of the primary foci in this area. Thermoelectric research has been concentrated into two parts—(i) strategies to enhance the efficiency of existing thermoelectric materials and (ii) development of new materials with promising thermoelectric parameters. Although such strategies have led to the improvement of thermoelectric non-oxide-based materials, the limitations possessed by them does not allow to be used at high temperatures. Due to the same reason, oxide-based materials have gained much attention. Here, we discuss about the oxide thermoelectric materials in detail and the effect of texturization on their morphology and transport properties. There is a lot of scope available for such class of materials for high-temperature applications.

High Temperature Transport Probe for Thermopower and Resistmty Measurements

1998 ◽  
Vol 545 ◽  
Author(s):  
R. T. Littleton ◽  
Jason Jeffries ◽  
Michael A. Kaeser ◽  
Michael Long ◽  
Terry M. Tritt
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Power ◽  
Temperature Difference ◽  
Thermoelectric Materials ◽  
Elevated Temperatures ◽  
Absolute Temperature ◽  
Probe Design ◽  
The Absolute

AbstractWe have recently developed a device to measure resistivity and Seebeck values of a material as a function of temperature over a range of 80K < T < 700K. These measurements overlap in temperature with our existing apparatus (4K < T < 320K). These measurements are necessary for the investigation of potential thermoelectric materials at elevated temperatures, where power generation applications are important. The probe design allows for various types of samples to be evaluated from needle like samples ( L ≈ 2mm, D ≈ 50μm ) to larger pressed pellet samples ( ≈ 2mm × 2mm × 10mm). Separate high temperature cartridge heaters are used to stabilize both the absolute temperature, T, as well as the temperature difference, ΔT. Thermocouples measuring T+ΔT/2 and T-ΔT/2 are also employed to measure sample voltages for resistance and thermoelectric power. Design details and measurement specifics will be discussed. Data taken on standards a well as some research samples will be presented.

Semiconducting large bandgap oxides as potential thermoelectric materials for high-temperature power generation?

2014 ◽  
Vol 116 (2) ◽  
pp. 433-470 ◽  
Author(s):  
M. Backhaus-Ricoult ◽  
J. Rustad ◽  
L. Moore ◽  
C. Smith ◽  
J. Brown
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Materials
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