Zr-MOF/Polyaniline Composite Films with Exceptional Seebeck Coefficient for Thermoelectric Material Applications

Lin, Chin-Yuan; Huang, Yi; Usman, Muhammad; Chao, Wen Hsuan; Lin, Wei; Luo, Tzuoo Tsair; Whang, Wha Tzong; Chen, Chunhua; Lu, Kuang Lieh

doi:10.1021/acsami.8b17308

Cited by 43 publications

(28 citation statements)

References 66 publications

(98 reference statements)

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“…4a). Air stability in one of the key issues in high-performance n-type thermoelectric materials 49,50 . The TAM-doped FBDPPV thick films are stable in air at room temperature.…”

Section: Resultsmentioning

confidence: 99%

A thermally activated and highly miscible dopant for n-type organic thermoelectrics

et al. 2020

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N-doping plays an irreplaceable role in controlling the electron concentration of organic semiconductors thus to improve performance of organic semiconductor devices. However, compared with many mature p-doping methods, n-doping of organic semiconductor is still of challenges. In particular, dopant stability/processability, counterion-semiconductor immiscibility and doping induced microstructure non-uniformity have restricted the application of ndoping in high-performance devices. Here, we report a computer-assisted screening approach to rationally design of a triaminomethane-type dopant, which exhibit extremely high stability and strong hydride donating property due to its thermally activated doping mechanism. This triaminomethane derivative shows excellent counterion-semiconductor miscibility (counter cations stay with the polymer side chains), high doping efficiency and uniformity. By using triaminomethane, we realize a record n-type conductivity of up to 21 S cm −1 and power factors as high as 51 μW m −1 K −2 even in films with thicknesses over 10 μm, and we demonstrate the first reported all-polymer thermoelectric generator.

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“…4a). Air stability in one of the key issues in high-performance n-type thermoelectric materials 49,50 . The TAM-doped FBDPPV thick films are stable in air at room temperature.…”

Section: Resultsmentioning

confidence: 99%

A thermally activated and highly miscible dopant for n-type organic thermoelectrics

et al. 2020

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“…Very recently, Lu et al. also utilized the similar synthetic approach to prepare the Zr‐MOF‐PANI composite materials, and found that the thermoelectric property of PANI can be significantly affected by the Zr‐MOF [17g] . However, among all the studies reporting the MOF‐PANI composite materials so far, there is not any synthetic approach that can control the formation of PANI solely within the MOF pores without forming bulk PANI between MOF crystals.…”

Section: Introductionmentioning

confidence: 99%

Selective Formation of Polyaniline Confined in the Nanopores of a Metal–Organic Framework for Supercapacitors

Song

Chen

et al. 2021

Chemistry A European J

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In this study, a strategy that can result in the polyaniline (PANI) solely confined within the nanopores of a metal–organic framework (MOF) without forming obvious bulk PANI between MOF crystals is developed. A water‐stable zirconium‐based MOF, UiO‐66‐NH2, is selected as the MOF material. The polymerization of aniline is initiated in the acidic suspension of UiO‐66‐NH2 nanocrystals in the presence of excess poly(sodium 4‐styrenesulfonate) (PSS). Since the pore size of UiO‐66‐NH2 is too small to enable the insertion of the bulky PSS, the quick formation of pore‐confined solid PANI and the slower formation of well dispersed PANI:PSS occur within the MOF crystals and in the bulk solution, respectively. By taking advantage of the resulting homogeneous PANI:PSS polymer solution, the bulk PANI:PSS can be removed from the PANI/UiO‐66‐NH2 solid by successive washing the sample with fresh acidic solutions through centrifugation. As this is the first time reporting the PANI solely confined in the pores of a MOF, as a demonstration, the obtained PANI/UiO‐66‐NH2 composite material is applied as the electrode material for supercapacitors. The PANI/UiO‐66‐NH2 thin films exhibit a pseudocapacitive electrochemical characteristic, and their resulting electrochemical activity and charge‐storage capacities are remarkably higher than those of the bulk PANI thin films.

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“…In addition, at 3440 cm −1 , the absorption peak is attributed to the NH stretching vibration. The existence of these absorption peaks demonstrates the successful synthesis of PANI . Furthermore, by an FT‐IR comparison of the spectra, the BN‐OH@PANI composites are also successfully synthesized.…”

Section: Resultsmentioning

confidence: 83%

High Thermal Conductivity Nanocomposites Based on Conductive Polyaniline Nanowire Arrays on Boron Nitride

Bai

Han

et al. 2019

Macro Materials & Eng

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With the development of soft electronics, conductive composites are garnering an increasing amount of attention. The electrical conductivity, thermal conductivity, and electrical stability of conductive composites are all very important. In particular, the thermal conductivity of conductive composites is critical to the stability of their conductive properties. However, little is reported on thermal management in conductive systems. Herein, sufficiently hydroxylated boron nitride nanosheets (BN‐OH)@polyaniline (PANI) composite nanosheets with a high thermal conductivity and outstanding conductance stability are reported. PANI nanowire arrays are aligned vertically on BN‐OH. This well‐ordered nanostructure provides the means to form a good conductive and thermally conductive path. Notably, the composite through‐plane thermal conductivity is 2.1 W m−1 K−1(≈1000% that of pure PANI) and that the resistivity of the composite is 1.38 Ω cm. Importantly, the resistivity of the composite remains unchanged after 1 h of work. The results show that this composite has prospective applications for use in soft electronics.

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Zr-MOF/Polyaniline Composite Films with Exceptional Seebeck Coefficient for Thermoelectric Material Applications

Cited by 43 publications

References 66 publications

A thermally activated and highly miscible dopant for n-type organic thermoelectrics

A thermally activated and highly miscible dopant for n-type organic thermoelectrics

Selective Formation of Polyaniline Confined in the Nanopores of a Metal–Organic Framework for Supercapacitors

High Thermal Conductivity Nanocomposites Based on Conductive Polyaniline Nanowire Arrays on Boron Nitride

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