Experimental investigation of Seebeck effect in metakaolin-based geopolymer

被引：21

作者：

Li, Junxia ^{[1
]}

Tay, Bernie Wee Yuan ^{[1
]}

Lei, Jiawei ^{[1
]}

Yang, En-Hua ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 272卷

关键词：

Seebeck effect; Metakaolin; Geopolymer; Pore solution; Figure of merit; FIBER-REINFORCED CEMENT; THERMOELECTRIC BEHAVIOR; CONDUCTION;

D O I：

10.1016/j.conbuildmat.2020.121615

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper reports the Seebeck effect of metakaolin-based geopolymer and discusses potential mechanisms. Results show that metakaolin-based geopolymer is a P-type thermoelectric material with very high Seebeck coefficient of around 2000 mu N/degrees C, four orders higher than the normal PC paste. Furthermore, metakaolin-based geopolymers exhibit a superior thermoelectric figure of merit (ZT) of around 10(-4), six orders higher than the normal PC paste. This suggests metakaolin-based geopolymer not only can be used as a thermal couple for temperature sensing but also has great potential to be used as an energy generator for thermal energy harvesting. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：7

共 40 条

[1] Synthesis and thermal behaviour of potassium sialate geopolymers [J].

Barbosa, VFF ;

MacKenzie, KJD .

MATERIALS LETTERS, 2003, 57 (9-10) :1477-1482

[2] EXPRESSION AND ANALYSIS OF PORE FLUIDS FROM HARDENED CEMENT PASTES AND MORTARS [J].

BARNEYBACK, RS ;

DIAMOND, S .

CEMENT AND CONCRETE RESEARCH, 1981, 11 (02) :279-285

[3] Thermoelectric behaviors of fly ash and metakaolin based geopolymer [J].

Cai, Jingming ;

Tan, Jiawei ;

Li, Xiaopeng .

CONSTRUCTION AND BUILDING MATERIALS, 2020, 237

[4] Role of moisture in the Seebeck effect in cement-based materials [J].

Cao, JY ;

Chung, DDL .

CEMENT AND CONCRETE RESEARCH, 2005, 35 (04) :810-812

[5]

Chung D.D. L., 2010, Functional materials: Electrical, dielectric, electromagnetic, optical and magnetic applications (with companion solution manual) / Deborah D.L. Chung

[6] High-pressure device for fluid extraction from porous materials:: Application to cement-based materials [J].

Cyr, Martin ;

Rivard, Patrice ;

Labrecque, Francis ;

Daidie, Alain .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (08) :2653-2658

[7] GEOPOLYMERS - INORGANIC POLYMERIC NEW MATERIALS [J].

DAVIDOVITS, J .

JOURNAL OF THERMAL ANALYSIS, 1991, 37 (08) :1633-1656

[8]

Davidovits J, 2020, GEOPOLYMER CHEM APPL, V5th

[9] Thermoelectric cooling and power generation [J].

DiSalvo, FJ .

SCIENCE, 1999, 285 (5428) :703-706

[10] New directions for low-dimensional thermoelectric materials [J].

Dresselhaus, Mildred S. ;

Chen, Gang ;

Tang, Ming Y. ;

Yang, Ronggui ;

Lee, Hohyun ;

Wang, Dezhi ;

Ren, Zhifeng ;

Fleurial, Jean-Pierre ;

Gogna, Pawan .

ADVANCED MATERIALS, 2007, 19 (08) :1043-1053

← 1 2 3 4 →