Thermoelectric Properties of Titanium Carbide Filled Polypyrrole Hybrid Composites

Ozturk, Cesim Emre; Uğraşkan, Volkan; Yazıcı, Özlem

doi:10.1007/s11664-022-09776-4

Cited by 7 publications

(4 citation statements)

References 42 publications

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“…The nanotube morphology of PPy combined with the welldispersed and decorated NiO on MWCNTs sidewall led to an enhancement of TE properties of the overall composites, and the reached value is higher than that reported values in Table 1. [39,40,66,67] This suggests that the TE performances could be tuned by modifying the morphology and controlling the decoration process of metal oxides on MWCNTs. These results at room temperature could be enhanced at higher temperatures.…”

Section: Thermoelectric (Te) Performancementioning

confidence: 99%

Nickel Oxide Decorated MWCNTs Wrapped Polypyrrole: One Dimensional Ternary Nanocomposites for Enhanced Thermoelectric Performance

Bourenane Cherif,

Mekhalif,

Abdous

et al. 2023

ChemNanoMat

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This study reports on a customized and revised approach to fabricate “nickel oxide decorated multi‐walled carbon nanotubes (MWCNTs) wrapped polypyrrole (PPy)” nanocomposite with enhanced room‐temperature thermoelectric (TE) properties. The nanocomposite is formed through three steps: MWCNTs functionalization via diazonium salt grafting of 5‐amino‐1,2,3‐benzene tricarboxylic acid; in situ generation on their surfaces of NiO nanoparticles with a homogenous distribution; the chemical polymerization of pyrrole using methyl orange as templating and dopant to wrap the MWCNTs‐(COOH)3‐NiO. Various techniques were used as characterization tools, including XRD, TEM, FTIR, Raman, TGA, XPS, and TE measurements. The PPy‐MWCNTs‐(COOH)3‐NiO nanocomposite exhibits significantly higher Seebeck coefficient, electrical conductivity, and power factor than PPy and PPy‐MWCNTs‐(COOH)3. The achieved enhancement in TE properties (figure of merit, ZTPPy‐MWCNTs‐(COOH)3‐NiO=1.51×10−2) is attributed to the presence of NiO, which acts as a dopant and improves the charge carrier density in the nanocomposite. These results offer the potential for waste heat recovery and large‐scale fabrication of high‐performance composites.

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Section: Thermoelectric (Te) Performancementioning

confidence: 99%

Nickel Oxide Decorated MWCNTs Wrapped Polypyrrole: One Dimensional Ternary Nanocomposites for Enhanced Thermoelectric Performance

Bourenane Cherif,

Mekhalif,

Abdous

et al. 2023

ChemNanoMat

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“…While APT can give the size, shape, distribution, and chemical nature of such precipitates, TEM can also provide information about the crystal structure and the strain between the precipitate and the matrix. Moreover, gas physisorption isotherms are among the most common experiments used to study porous samples, including pore volume, pore size distribution, and surface area, although their use in thermoelectric materials is very limited. , …”

Section: The Challengesmentioning

confidence: 99%

“…Moreover, gas physisorption isotherms are among the most common experiments used to study porous samples, including pore volume, pore size distribution, and surface area, although their use in thermoelectric materials is very limited. 185,186 3.1.3. Characterization of the Transformation from NP-Based Precursors to Dense Solids.…”

Section: Characterization Of the Consolidated Solidmentioning

confidence: 99%

Solution-Processed Inorganic Thermoelectric Materials: Opportunities and Challenges

et al. 2022

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Thermoelectric technology requires synthesizing complex materials where not only the crystal structure but also other structural features such as defects, grain size and orientation, and interfaces must be controlled. To date, conventional solid-state techniques are unable to provide this level of control. Herein, we present a synthetic approach in which dense inorganic thermoelectric materials are produced by the consolidation of well-defined nanoparticle powders. The idea is that controlling the characteristics of the powder allows the chemical transformations that take place during consolidation to be guided, ultimately yielding inorganic solids with targeted features. Different from conventional methods, syntheses in solution can produce particles with unprecedented control over their size, shape, crystal structure, composition, and surface chemistry. However, to date, most works have focused only on the low-cost benefits of this strategy. In this perspective, we first cover the opportunities that solution processing of the powder offers, emphasizing the potential structural features that can be controlled by precisely engineering the inorganic core of the particle, the surface, and the organization of the particles before consolidation. We then discuss the challenges of this synthetic approach and more practical matters related to solution processing. Finally, we suggest some good practices for adequate knowledge transfer and improving reproducibility among different laboratories.

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“…Summary of research on some interfacial engineering strategies for organic-inorganic composites[119][120][121][122][123][124][125][126][127][128][129][130][131][132] Composite s (S cm À1 ) S (mV K À1 ) PF (mW m À1 K À2 ) AE 4.1 187.5 AE 7.4 234.3 AE 4.1 PPy/SWCNTs 341.6 AE 4.7 33.2 AE 0.7 37.6 AE 2.3 AE 1.3 23.23 AE 4.76…”

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confidence: 99%

Recent advances in interface engineering of thermoelectric nanomaterials

Pan

Shi

et al. 2023

Mater. Chem. Front.

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Thermoelectric Properties of Titanium Carbide Filled Polypyrrole Hybrid Composites

Cited by 7 publications

References 42 publications

Nickel Oxide Decorated MWCNTs Wrapped Polypyrrole: One Dimensional Ternary Nanocomposites for Enhanced Thermoelectric Performance

Nickel Oxide Decorated MWCNTs Wrapped Polypyrrole: One Dimensional Ternary Nanocomposites for Enhanced Thermoelectric Performance

Solution-Processed Inorganic Thermoelectric Materials: Opportunities and Challenges

Recent advances in interface engineering of thermoelectric nanomaterials

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