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Sun H, Wang Y, Liu Y, Wu R, Chang A, Zhao P, Zhang B. Enhanced Thermal Stability and Broad Temperature Range in High-Entropy (La 0.2Ce 0.2Nd 0.2Sm 0.2Eu 0.2)NbO 4 Ceramics. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38416064 DOI: 10.1021/acsami.4c00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Next-generation high-temperature applications increasingly rely heavily on advanced thermistor materials with enhanced thermal stability and electrical performance. However, thus far, the great challenge of realizing high thermal stability and precision in a wide temperature range has become a key bottleneck restricting the high-temperature application. Here, we propose a high-entropy strategy to design novel high-temperature thermistor ceramics (La0.2Ce0.2Nd0.2Sm0.2Eu0.2)NbO4. Differences in atomic size, mass, and electronegativity in this high-entropy system cause high lattice distortion, substantial grain boundaries, and high dislocation density. These enhance the charge carrier transport and reduce the grain boundary resistance, thus synergistically broadening the temperature range. Our samples maintain high precision and thermal stability over a wide temperature range from room temperature to 1523 K (ΔT = 1250 K) with an aging value as low as 0.42% after 1000 h at 1173 K, showing breakthrough progress in high-temperature thermistor ceramics. This study establishes an effective approach to enhancing the performance of high-temperature thermistor materials through high-entropy strategies.
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Affiliation(s)
- Hao Sun
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Yunfei Wang
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Yafei Liu
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Ruifeng Wu
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Aimin Chang
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Pengjun Zhao
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
| | - Bo Zhang
- Key Laboratory of Functional Materials and Devices for Special Environments of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, Xinjiang Technical Institute of Physics & Chemistry of CAS, Urumqi 830011, China
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2
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Li W, Poudel B, Kishore RA, Nozariasbmarz A, Liu N, Zhang Y, Priya S. Toward High Conversion Efficiency of Thermoelectric Modules through Synergistical Optimization of Layered Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210407. [PMID: 36868560 DOI: 10.1002/adma.202210407] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/07/2023] [Indexed: 05/19/2023]
Abstract
Waste-heat electricity generation using high-efficiency solid-state conversion technology can significantly decrease dependence on fossil fuels. Here, a synergistical optimization of layered half-Heusler (hH) materials and module to improve thermoelectric conversion efficiency is reported. This is realized by manufacturing multiple thermoelectric materials with major compositional variations and temperature-gradient-coupled carrier distribution by one-step spark plasma sintering. This strategy provides a solution to overcome the intrinsic concomitants of the conventional segmented architecture that only considers the matching of the figure of merit (zT) with the temperature gradient. The current design is dedicated to temperature-gradient-coupled resistivity and compatibility matching, optimum zT matching, and reducing contact resistance sources. By enhancing the quality factor of the materials by Sb-vapor-pressure-induced annealing, a superior zT of 1.47 at 973 K is achieved for (Nb, Hf)FeSb hH alloys. Along with the low-temperature high-zT hH alloys of (Nb, Ta, Ti, V)FeSb, the single stage layered hH modules are developed with efficiencies of ≈15.2% and ≈13.5% for the single-leg and unicouple thermoelectric modules, respectively, under ΔT of 670 K. Therefore, this work has a transformative impact on the design and development of next-generation thermoelectric generators for any thermoelectric material families.
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Affiliation(s)
- Wenjie Li
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Bed Poudel
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Ravi Anant Kishore
- National Renewable Energy Laboratory, 15013 Denver West Pkwy, Golden, CO, 80401, USA
| | - Amin Nozariasbmarz
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Na Liu
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Yu Zhang
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Shashank Priya
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
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Li W, Goyal GK, Stokes D, Raman L, Ghosh S, Sharma S, Nozariasbmarz A, Liu N, Singh S, Zhang Y, Poudel B, Priya S. High-Performance Skutterudite/Half-Heusler Cascaded Thermoelectric Module Using the Transient Liquid Phase Sintering Joining Technique. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2961-2970. [PMID: 36598771 DOI: 10.1021/acsami.2c19137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Thermoelectric (TE) materials have made rapid advancement in the past decade, paving the pathway toward the design of solid-state waste heat recovery systems. The next requirement in the design process is realization of full-scale multistage TE devices in the medium to high temperature range for enhanced power generation. Here, we report the design and manufacturing of full-scale skutterudite (SKD)/half-Heusler (hH) cascaded TE devices with 49-couple TE legs for each stage. The automated pick-and-place tool is employed for module fabrication providing overall high manufacturing process efficiency and repeatability. Optimized Ti/Ni/Au coating layers are developed for metallization as the diffusion barrier and electrode contact layers. The Cu-Sn transient liquid phase sintering technique is utilized for SKD and hH stages, which provides a high strength bonding and very low contact resistance. A remarkably high output power of 38.3 W with a device power density of 2.8 W·cm-2 at a temperature gradient of 513 °C is achieved. These results provide an avenue for widespread utilization of TE technology in waste heat recovery applications.
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Affiliation(s)
- Wenjie Li
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Gagan K Goyal
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - David Stokes
- Electronics and Applied Physics Division, RTI International, Research Triangle Park, North Carolina27709, United States
| | - Lavanya Raman
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Subrata Ghosh
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Shweta Sharma
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Amin Nozariasbmarz
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Na Liu
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Saurabh Singh
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Yu Zhang
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Bed Poudel
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Shashank Priya
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania16802, United States
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Tippireddy S, Azough F, Vikram, Tompkins FT, Bhui A, Freer R, Grau-Crespo R, Biswas K, Vaqueiro P, Powell AV. Tin-Substituted Chalcopyrite: An n-Type Sulfide with Enhanced Thermoelectric Performance. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:5860-5873. [PMID: 35844633 PMCID: PMC9281371 DOI: 10.1021/acs.chemmater.2c00637] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The dearth of n-type sulfides with thermoelectric performance comparable to that of their p-type analogues presents a problem in the fabrication of all-sulfide devices. Chalcopyrite (CuFeS2) offers a rare example of an n-type sulfide. Chemical substitution has been used to enhance the thermoelectric performance of chalcopyrite through preparation of Cu1-x Sn x FeS2 (0 ≤ x ≤ 0.1). Substitution induces a high level of mass and strain field fluctuation, leading to lattice softening and enhanced point-defect scattering. Together with dislocations and twinning identified by transmission electron microscopy, this provides a mechanism for scattering phonons with a wide range of mean free paths. Substituted materials retain a large density-of-states effective mass and, hence, a high Seebeck coefficient. Combined with a high charge-carrier mobility and, thus, high electrical conductivity, a 3-fold improvement in power factor is achieved. Density functional theory (DFT) calculations reveal that substitution leads to the creation of small polarons, involving localized Fe2+ states, as confirmed by X-ray photoelectron spectroscopy. Small polaron formation limits the increase in carrier concentration to values that are lower than expected on electron-counting grounds. An improved power factor, coupled with substantial reductions (up to 40%) in lattice thermal conductivity, increases the maximum figure-of-merit by 300%, to zT ≈ 0.3 at 673 K for Cu0.96Sn0.04FeS2.
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Affiliation(s)
- Sahil Tippireddy
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
| | - Feridoon Azough
- Department
of Materials, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Vikram
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
| | - Frances Towers Tompkins
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
| | - Animesh Bhui
- New
Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Robert Freer
- Department
of Materials, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Ricardo Grau-Crespo
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
| | - Kanishka Biswas
- New
Chemistry Unit, Jawaharlal Nehru Centre
for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Paz Vaqueiro
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
| | - Anthony V. Powell
- Department
of Chemistry, University of Reading, Whiteknights, Reading RG6 6DX, United Kingdom
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Li W, Nozariasbmarz A, Kishore RA, Kang HB, Dettor C, Zhu H, Poudel B, Priya S. Conformal High-Power-Density Half-Heusler Thermoelectric Modules: A Pathway toward Practical Power Generators. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53935-53944. [PMID: 34698486 DOI: 10.1021/acsami.1c16117] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Thermoelectric generators (TEGs) exploiting the Seebeck effect provide a promising solution for waste heat recovery. Among the large number of thermoelectric (TE) materials, half-Heusler (hH) alloys are leading candidates for medium- to high-temperature power generation applications. However, the fundamental challenge in this field has been inhomogeneous material properties at large wafer diameters, insufficient power output from the modules, and rigid form factors of TE modules. This has restricted the transition of TEGs in practical applications for over three decades. Here, we successfully demonstrate large diameter wafers with uniform TE properties, high-power conformal hH TE modules for high-temperature application, and their direct integration on flue gas platforms, such as cylindrical tubes, to form large area flexible TEGs. This new conformal architecture design provides a breakthrough toward medium-/high-temperature TEGs over the conventional BiTe- and polymer-based flexible TEG design. A variable fill factor and greater flexibility due to the conformal design result in higher device performance as compared to conventional rigid TEG devices. Modules with 72-couple hH legs exhibit a device high-power-density of 3.13 W cm-2 and a total output power of 56.6 W under a temperature difference of 570 °C. These results provide a promising pathway toward widespread utilization of thermoelectric technology into the waste heat recovery application and will have a significant impact on the development of practical thermal to electrical converters.
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Affiliation(s)
- Wenjie Li
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Amin Nozariasbmarz
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ravi Anant Kishore
- National Renewable Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401 United States
| | - Han Byul Kang
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Carter Dettor
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Hangtian Zhu
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Bed Poudel
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Shashank Priya
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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Wei Y, Zhang B, Fu Z, Liu Y, Chen H, Ni L, Zhou Y, Chang A. Synthesis and high thermal stability of Mn doped Y2/3Cu3Ti4O12 negative temperature coefficient ceramic. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Comparative analysis of the thermoelectric properties of the non-textured and textured Bi1.9Gd0.1Te3 compounds. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121559] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Shi Z, Zhang C, Su T, Xu J, Zhu J, Chen H, Gao T, Qin M, Zhang P, Zhang Y, Yan H, Gao F. Boosting the Thermoelectric Performance of Calcium Cobaltite Composites through Structural Defect Engineering. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21623-21632. [PMID: 32320194 DOI: 10.1021/acsami.0c03297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Misfit-layered Ca3Co4O9 as a p-type semiconductor is difficult to commercialize because of its relatively poor performance. Here, Ca2.7-xLaxAg0.3Co4O9/Ag composites prepared by spark plasma sintering were systematically investigated in terms of La3+ dopant levels and nano-sized Ag compacts. Multiscale microstructures of stacking fault, dislocation, and oxygen vacancy-linked defects could be recognized as an effective strategy for tuning the transport of charge carriers and phonon scattering. An increasing concentration of charge carriers was caused by the introduction of nano-sized Ag particles at the grain boundary. The multiscale structural defects served as phonon scattering centers to reduce the thermal conductivity. Finally, the Ca2.61La0.09Ag0.3Co4O9/Ag sample exhibited a maximum ZT of 0.35 at 1073 K. The results suggest that the interplay of structural defects provides an impetus for a huge improvement in thermoelectric performance.
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Affiliation(s)
- Zongmo Shi
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Can Zhang
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Taichao Su
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Jie Xu
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Jihong Zhu
- State IJR Center of Aerospace Design and Additive Manufacturing, MIIT Lab of Metal Additive Manufacturing and Innovative Design, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Haiyan Chen
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Tong Gao
- State IJR Center of Aerospace Design and Additive Manufacturing, MIIT Lab of Metal Additive Manufacturing and Innovative Design, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Mengjie Qin
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Ping Zhang
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Yi Zhang
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Haixue Yan
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
| | - Feng Gao
- State Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, USI Institute of Intelligence Materials and Structure, School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- NPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi'an 710072, P. R. China
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