Thermoelectric Property of Cement Composites with MnO2 Added
LI Weihua
LIAO Xiao
JI Tao
ZHANG Xiaoying
ZHANG Xiong
Abstract：MnO2 nanopowders were chosen as the thermoelectric component to increase the thermoelectric effect of cement composites.The MnO2 nanopowders were synthesized by hydrothermal method and then incorporated into cement composites.The thermoelectric property(generally called Seebeck effect)of this cement composite was explored with different use level of MnO2 nanopowders.Besides,the enhancement mechanism was discussed in detail.The results show that the Seebeck coefficient of the cement composites increases steadily with the added MnO2 nanopowders use level.The maximum Seebeck coefficient was higher than 3 300.0 μV/℃ when the MnO2 nanopowders use level was 5.0％,which was about 30 times higher than that of fiber reinforced cement composites.The research results endow the cement composites with MnO2 a potential application in energy harvesting and air-conditioning system in future buildings.
Keywords：thermoelectric effectcement compositeSeebeck coefficientMnO2 nanopowder
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 770-773 )