Fast fabrication and enhancement of thermoelectric power factor of p-type nanostructured CoSb3(1+δ) (δ=0.00, 0.01 and 0.02) using solvothermal synthesis and evacuating-and-encapsulating sintering

Bhaskar, Ankam; Yang, Yo-Lun; Yang, Zong-Ren; Lin, Fei‐Hung

doi:10.1016/j.ceramint.2015.02.145

Cited by 32 publications

(8 citation statements)

References 33 publications

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“…As the temperature increases, the total thermal conductivities of all samples gradually decrease, indicating a decreasing phonon mean-free-path upon heating. 33 The thermal conductivities of the Mg 3−x Zn x Sb 2 /Sb composites initially decrease with x until x = 0.69, after which they start to increase. At 325 K, the thermal conductivities of the composites exhibit a decreasing trend as x decreases until x = 0.5.…”

Section: S Ws Wmentioning

confidence: 99%

Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

Kannan,

Lourdhusamy,

Paulraj

et al. 2023

ACS Appl. Mater. Interfaces

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Mg 3 Sb 2 -based Zintl compounds have garnered recent attention as promising materials for thermoelectric applications due to their low thermal conductivity and high zT values as n-type materials. However, the zT values of p-type materials are lower compared to their n-type counterparts. Through a straightforward process involving cold pressing and evacuating-and-encapsulating sintering, we have successfully synthesized a variety of p-type Mg 3−x Zn x Sb 2 /Sb composites by adding the ZnSb-4%Sb composite into the Mg 3 Sb 2 host material. Structural analyses have provided insights into the role of the ZnSb-4%Sb composite, demonstrating its significance in Zn doping on the Mg sites and Sb acting as an additive in the composite. The introduction of Zn on the Mg tetrahedral sites enhances the concentration of carriers, while the presence of highly conductive Sb grains facilitates the movement of charge carriers between adjacent Mg 3−x Zn x Sb 2 grains, thereby promoting mobility. Consequently, the electrical resistivity of the Mg 3−x Zn x Sb 2 /Sb composites decreases as the Zn content increases. At 710 K, the Mg 1.91 Zn 1.09 Sb 2 /Sb composite exhibits the lowest resistivity, measuring 5.1 mΩ-cm, which is 46 times lower than that of the Mg 3 Sb 2 host. Furthermore, the zT value of the Mg 3−x Zn x Sb 2 /Sb composites increases with higher Zn content (x), benefiting from a combination of an improved power factor and reduced thermal conductivity. Significantly, our straightforward fabrication process enables us to achieve a maximum zT value of 0.58 at 710 K for the Mg 1.91 Zn 1.09 Sb 2 /Sb composite. This achievement can primarily be attributed to the 8-fold enhancement in power factor compared to the Mg 3 Sb 2 host. KEYWORDS: p-type Mg 3 Sb 2 , thermoelectric, ZnSb-4 Sb composite, cold press sintering, Mg 3 Sb 2 /w wt ZnSb-4 Sb composite

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Section: S Ws Wmentioning

confidence: 99%

Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

Kannan,

Lourdhusamy,

Paulraj

et al. 2023

ACS Appl. Mater. Interfaces

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“…The temperature (T) dependent electrical conductivity (s p R À1 ) of most composites can be described by variable range hopping sT 0.5 = exp(ÀBT À0. 25 ) and/or tunnelling s = s 0 exp(ÀAT À0.5 ) mechanism, 46,47 where s 0 , A, and B are constants. As shown in Fig.…”

Section: Mechanismmentioning

confidence: 99%

An ultra-sensitive NH₃ gas sensor enabled by an ion-in-conjugated polycroconaine/Ti₃C₂T_x core–shell composite

et al. 2023

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“…Therefore, relevant experts in the ceramic industry and logistics industry are carrying out relevant technology application research. Using the system structure platform of the industrial Internet of Things, the research on the establishment of a third-party supply chain management platform is carried out by upgrading and integrating technical means such as the bar code technology, the RFID technology, the GPS/GTS technology, and Internet technology [ 8 , 9 ]. In addition, smart terminal ceramics generally refer to various precision ceramic materials and appearance structural parts used in smart terminal products in the field of consumer electronics.…”

Section: Introductionmentioning

confidence: 99%

Construction of a Ceramic Appearance Design System Based on Technology for Internet of Things

Long

Ouyang

2022

Computational Intelligence and Neuroscience

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The planning and design of intelligent storage systems in ceramic parks based on the industrial Internet of Things technology are proposed. Based on the analysis of the storage demand of ceramic parks, information transformation is carried out according to the original manual operation mode. The RFID technology is applied to the overall planning of the warehouse area and the deployment of the software; it is applied to the overall planning of the RFID system, the hardware deployment of the two-dimensional warehouse system, and the integration of the RFID technology and the software deployment of the two-dimensional warehouse system. It realizes the close cooperation between the information system and hardware equipment, optimizes the system process, and improves the level of warehouse management.In addition, smart terminal ceramics refer to those with fine ceramic appearances or functionalities in smart terminal products, such as smartphones, smart watches, and other wearable devices, in the field of consumer electronics, including ceramic back plates, middle frames, buttons, fingerprint recognition sheets on mobile phones and ceramic cases, bracelets, and back covers on smart watches. Aside the excellent performance and aesthetic properties of ceramic materials, they can also be adapted to the trends in 5G and wireless communication technology. From the perspective of high strength, high toughness, and colorful nano-zirconia ceramics, this article was aimed to review the development process and industrialization application process.

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Fast fabrication and enhancement of thermoelectric power factor of p-type nanostructured CoSb3(1+δ) (δ=0.00, 0.01 and 0.02) using solvothermal synthesis and evacuating-and-encapsulating sintering

Cited by 32 publications

References 33 publications

Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

An ultra-sensitive NH₃ gas sensor enabled by an ion-in-conjugated polycroconaine/Ti₃C₂T_x core–shell composite

Construction of a Ceramic Appearance Design System Based on Technology for Internet of Things

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Fast fabrication and enhancement of thermoelectric power factor of p-type nanostructured CoSb3(1+δ) (δ=0.00, 0.01 and 0.02) using solvothermal synthesis and evacuating-and-encapsulating sintering

Cited by 32 publications

References 33 publications

Enhanced Thermoelectric Performance of p-Type Mg3–xZnxSb2/Sb Composites: The Role of ZnSb/Sb Composites

Enhanced Thermoelectric Performance of p-Type Mg3–xZnxSb2/Sb Composites: The Role of ZnSb/Sb Composites

An ultra-sensitive NH3 gas sensor enabled by an ion-in-conjugated polycroconaine/Ti3C2Tx core–shell composite

Construction of a Ceramic Appearance Design System Based on Technology for Internet of Things

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Product

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Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

Enhanced Thermoelectric Performance of p-Type Mg_3–xZn_xSb₂/Sb Composites: The Role of ZnSb/Sb Composites

An ultra-sensitive NH₃ gas sensor enabled by an ion-in-conjugated polycroconaine/Ti₃C₂T_x core–shell composite