Highly efficient electrochemical energy storage of fluorinated nano-polyindoles with different morphology

Wang, Rui; Zhou, Weiqiang; Lin, Kaiwen; Jiang, Fengxing; Wang, Zhenfeng; Xu, Jingkun; Zhang, Yingying; Liang, Aiqin; Nie, Guangming; Duan, Xuemin

doi:10.1016/j.electacta.2020.136410

Cited by 14 publications

(14 citation statements)

References 67 publications

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“…It is observed that there are two-stage degradations in the pure PIN and its nanocomposites. In the first stage (30–95 °C), the weight loss of the samples is caused by the evaporation of moisture and dopant in the polymer, 60 whereas the second stage (350–850 °C), major weight loss, results from the thermal degradation of the PIN polymer chain. 61 At 850 °C, PIN retains only 6.4% of the initial weight, which reveals high thermal degradability of the PIN backbones.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

et al. 2022

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The present work reports the fabrication of polyindole (PIN)/Ni 1– x Zn x Fe 2 O 4 ( x = 0, 0.5, 1) nanocomposites as efficient electromagnetic wave absorbers by a facile in situ emulsion polymerization method for the first time. The samples were characterized through Fourier transform infrared spectroscopy, UV–vis spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, high-resolution transmission electron microscopy, and vibrating sample magnetometry. The resulting polyindole/Ni 1– x Zn x Fe 2 O 4 ( x = 0, 0.5, 1) nanocomposites offer better synergism among the Ni 1– x Zn x Fe 2 O 4 nanoparticles and PIN matrix, which significantly improved impedance matching. The best impedance matching of Ni 1– x Zn x Fe 2 O 4 /polyindole ( x = 0, 0.5, 1) nanocomposites was sought out, and the minimum reflection loss of the composites can reach up to −33 dB. The magnetic behavior, complex permittivity, permeability, and microwave absorption properties of polyindole/Ni 1– x Zn x Fe 2 O 4 ( x = 0, 0.5, 1) nanocomposites have also been studied. The microwave absorbing characteristics of these composites were investigated in the 8–12 GHz range (X band) and explained based on eddy current, natural and exchange resonance, and dielectric relaxation processes. These results provided a new idea to upgrade the performance of conventional microwave-absorbing materials based on polyindole in the future.

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Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

et al. 2022

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“…The initial degradation below 100 °C led to weight losses of approximately 2% for both PIN and GNP, which is due to the removal of occluded moisture. 54 Then, a weight loss of 7% was recorded for both PIN and GNP between 100–300 °C and was mainly attributed to the degradation of unreacted monomer, some oligomers, and doping anions from PIN structure. 40 Upon increasing the temperature from 300 to 850 °C, maximum weight losses of 84 and 67% were recorded for PIN and GNP composites respectively, due to decomposition of the polymer skeleton.…”

Section: Resultsmentioning

confidence: 99%

Ternary 3D reduced graphene oxide/Ni_0.5Zn_0.5Fe₂O₄/polyindole nanocomposite for supercapacitor electrode application

2021

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“…As one of the important ways to prepare nano‐array electrodes, electrochemical methods have many merits compared with others. In particular, by adjusting controllable factors such as applied current and temperature, this kind of characteristic nano‐array electrode can be obtained [42–45] Shiri. et al.…”

Section: Synthetic Methodsmentioning

confidence: 99%

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Zhou

2022

ChemSusChem

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Supercapacitors (SCs) can effectively alleviate problems such as energy shortage and serious greenhouse effect. The properties of electrode materials directly affect the performance of SCs. Rare earth (RE) is known as “modern industrial vitamins”, and their functional materials have been listed as key strategic materials. In the past few years, the number of scientific reports on RE‐based nanomaterials for SCs has increased rapidly, confirming that adding RE elements or compounds to the host electrode materials with various nanostructured morphologies can greatly enhance their electrochemical performance. Although RE‐based nanomaterials have made rapid progress in SCs, there are very few works providing a comprehensive survey of this field. In view of this, a comprehensive overview of RE‐based nanomaterials for SCs is provided here, including the preparation methods, nanostructure engineering, compounds, and composites, along with their capacitance performances. The structure–activity relationships are discussed and highlighted. Meanwhile, the future challenges and perspectives are also pointed out. This Review can not only provide guidance for the further development of SCs but also arouse great interest in RE‐based nanomaterials in other research fields such as electrocatalysis, photovoltaic cells, and lithium batteries.

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Highly efficient electrochemical energy storage of fluorinated nano-polyindoles with different morphology

Cited by 14 publications

References 67 publications

Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Ternary 3D reduced graphene oxide/Ni_0.5Zn_0.5Fe₂O₄/polyindole nanocomposite for supercapacitor electrode application

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

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Highly efficient electrochemical energy storage of fluorinated nano-polyindoles with different morphology

Cited by 14 publications

References 67 publications

Facile Synthesis of Polyindole/Ni1–xZnxFe2O4(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Facile Synthesis of Polyindole/Ni1–xZnxFe2O4(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Ternary 3D reduced graphene oxide/Ni0.5Zn0.5Fe2O4/polyindole nanocomposite for supercapacitor electrode application

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

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Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Facile Synthesis of Polyindole/Ni_1–xZn_xFe₂O₄(x= 0, 0.5, 1) Nanocomposites and Their Enhanced Microwave Absorption and Shielding Properties

Ternary 3D reduced graphene oxide/Ni_0.5Zn_0.5Fe₂O₄/polyindole nanocomposite for supercapacitor electrode application