High-temperature thermoelectric properties of In2O3-based mixed oxides and their applicability to thermoelectric power generation

1994 ◽  
Vol 4 (5) ◽  
pp. 653 ◽  
Author(s):  
Michitaka Ohtaki ◽  
Daisuke Ogura ◽  
Koichi Eguchi ◽  
Hiromichi Arai
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Power ◽  
Thermoelectric Properties ◽  
Mixed Oxides ◽  
Thermoelectric Power Generation

Metal-like electrical conductivity in LaxSr2−xTiMoO6 oxides for high temperature thermoelectric power generation

2017 ◽  
Vol 46 (18) ◽  
pp. 5872-5879 ◽  
Author(s):  
Mandvi Saxena ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Power Generators ◽  
Thermoelectric Power Generation

Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.

Power generation performance of π-structure thermoelectric device using NaCo2O4 and Mg2Si elements

2013 ◽  
Vol 1490 ◽  
pp. 185-190 ◽  
Author(s):  
Tomoyuki Nakamura ◽  
Kazuya Hatakeyama ◽  
Masahiro Minowa ◽  
Youhiko Mito ◽  
Koya Arai ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Properties ◽  
Waste Heat ◽  
Maximum Output Power ◽  
Magnesium Silicide ◽  
Thermoelectric Device ◽  
Maximum Output ◽  
Thermoelectric Power Generation ◽  
P Type

ABSTRACTThermoelectric power generation has been attracting attention as a technology for waste heat utilization in which thermal energy is directly converted into electric energy. It is well known that layered cobalt oxide compounds such as NaCo2O4 and Ca3Co4O9 have high thermoelectric properties in p-type oxide semiconductors. However, in most cases, the thermoelectric properties in n-type oxide materials are not as high. Therefore, n-type magnesium silicide (Mg2Si) has been studied as an alternative due to its non-toxicity, environmental friendliness, lightweight property, and comparative abundance compared with other TE systems. In this study, we fabricated π-structure thermoelectric power generation devices using p-type NaCo2O4 elements and n-type Mg2Si elements. The p- and n-type sintering bodies were fabricated by spark plasma sintering (SPS). To reduce the resistance at the interface between elements and electrodes, we processed the surface of the elements before fabricating the devices. The end face of a Mg2Si element was covered with Ni by SPS and that of a NaCo2O4 element was coated with Ag by silver paste and soldering.The thermoelectric device consisted of 18 pairs of p-type and n-type legs connected with Ag electrodes. The cross-sectional and thickness dimensions of the p-type elements were 3.0 mm × 5.0 mm × 7.6 mm (t) and those of the n-type elements were 3.0 mm × 3.0 mm × 7.6 mm (t). The open circuit voltage was 1.9 V and the maximum output power was 1.4 W at a heat source temperature of 873 K and a cooling water temperature of 283 K in air.

Thermoelectrics for High Temperatures: A Survey of State of the Art

2009 ◽  
Vol 1166 ◽  
Author(s):  
Harald Böttner
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Power ◽  
High Temperatures ◽  
Thermoelectric Properties ◽  
State Of The Art ◽  
Commodity Prices ◽  
High Temperature Materials ◽  
Recycling Technology ◽  
Device Technology

AbstractA survey of state of the art of the development of high temperature materials is presented and will be discussed in comparison to the situation in the 1990th. An attempt will be made to assess the state of the art of the materials thermoelectric properties, their technical level, and possible potential for standardized device technology. Also a first assessment based on current commodity prices for some important thermoelectric compounds will be made. As a roundup advantages and drawbacks for some classical and upcoming compounds will be given. The main challenges, which will have to be overcome to finally enable thermoelectric power generation as a recycling technology of “nomadic” energy, will be summarized. As a result, thermoelectrics should play an important role in the field of green energies.

Environmentally friendly BaxSr2−xTiFeO6double perovskite with enhanced thermopower for high temperature thermoelectric power generation

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54636-54643 ◽  
Author(s):  
Pinku Roy ◽  
Vikram Waghmare ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermoelectric Power ◽  
Environmentally Friendly ◽  
Double Perovskites ◽  
Thermoelectric Power Generation

SrTiO3based double perovskites, BaxSr2−xTiFeO6(BSTF) compositions showed very large thermo-power (S) for the application of high temperature thermoelectric power generation.

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