Stable GQD@PANi nanocomposites based on benzenoid structure for enhanced specific capacitance

Jin, Jianli; Zhou, Yaya; Xiong, Zhiyuan; Guo, Guizheng; Sun, Youyi; Li, Dan; Liu, Yaqing

doi:10.1016/j.ijhydene.2018.03.133

Cited by 25 publications

(26 citation statements)

References 55 publications

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“…Here, the diffraction peaks of GQD/PANI were not observed due to the low content and crystallinity of PANI@GQD. [20][21][22] These results suggested the formation of GQD/PANI@MnO 2 composites. The FT-IR spectrum of GQD/PANI@MnO 2 nanofiber was further characterized and compared with GQD/PANI and MnO 2 as shown in Figure 2.…”

Section: Resultsmentioning

confidence: 70%

“…22 The diffraction peak of GQDs was not observed due to that the broad peak of GQDs at 21.0 overlapped with the peak of PANI. 20,22 For single MnO 2 sample ( Figure 1C), it showed some diffraction peaks at 2θ = 12. Figure 1B .…”

Section: Resultsmentioning

confidence: 99%

“…Here, three-electrode was used, in which the reference electrode, counter electrode, and working electrode were Hg/Hg 2 Cl 2 (1.0 M KCl filled) electrode, the platinum wire and GQD/PANi@MnO 2 -based electrode, respectively. The electrochemical active surface area (ECSA) was calculated by Equation (1) according to the cyclic voltammetry curve, 20…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…2-4 The GQD/PANI composite possessed excellent capacitance due to large surface area and good electrical conductivity, 20 Therefore, α-MnO 2 combined with GQD/PANI may exhibit good electrochemical storage. However, the synthesis of GQD/PANI@α-MnO 2 has been rarely reported for application in electrochemical storage.…”

Section: Introductionmentioning

confidence: 99%

“…First, the GQD was synthesized by a simple hydrothermal method according to the previous work. 20,21 Second, the MnO 2 nanofiber was synthesized by the hydrothermal method. Then, 1.9 g KMnO 4 and 0.4 mL H 2 SO 4 were dissolved in the 50.0 mL distilled water under stirring for about 60.0 minutes.…”

Section: Introductionmentioning

confidence: 99%

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Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity

Yang

et al. 2020

Int J Energy Res

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A new class α-MnO 2 nanofiber-based on assemblies of nanoparticles was synthesized to improve the availability of Mn atom for application in electrochemical storage. Furthermore, the effect of graphene quantum dots/polyaniline (GQD/PANI) on the structure and electrochemical performance of α-MnO 2 nanofiber was investigated. The MnO 2 nanofiber combined with GQD/PANI showed a larger specific capacitance of 1022.5 F g −1 at 1.0 A g −1 comparing to other MnO 2-based electrode materials. The result was attributed to α-MnO 2 nanofiber with loosely assembled structure and GQD/PANI with good conductivity, providing more electrochemical active sites and reducing internal resistance. The working does not only report new MnO 2-based electrode materials with high performance but also provides a facile method to synthesize α-MnO 2 nanofiber with a loosely assembled structure for various applications.

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Section: Resultsmentioning

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity

Yang

et al. 2020

Int J Energy Res

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Photodegradation Effect on Electrical and Thermal Performance of Polyaniline‐Montmorillonite Nanocomposites

Youcef,

Nacera

2023

Chem Eng & Technol

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Polymer-clay nanocomposites have attracted significant research interest for more than a decade for various applications. The structural, thermal, and electrical stability of a nanocomposite determines its durability and long-term application under sunlight and UV photodegradation of dyes, lithium nanopolymer batteries, and petroleum pipeline corrosion protection, in addition to the effect of high temperatures, e.g., in the Sahara. In the present work, the intercalation of montmorillonite clay within the polymer structure was done by organophilization using hexadecyltrimethylammonium bromide. The obtained nanocomposite was characterized in terms of its structural, electrical, and thermal properties using Fourier transform infrared spectroscopy, the four-pin method, and differential scanning calorimetry, respectively. The effect of photodegradation on polymer nanocomposite properties was assessed under sunlight and UV radiation under laboratory conditions. The obtained results highlighted the good barrier properties of the nanocomposite, attributed to the clay part.

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Green synthesis of zero‐dimensional carbon nanostructures in energy storage applications—A review

Yadav

Daniel²

2023

Energy Storage

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Over the past decade, carbon quantum dots (CQDs) and graphene quantum dots (GQDs) have emerged as the supreme category of zero‐dimensional (0D) carbonaceous nanostructures having potential applications in energy storage and optoelectronics devices. These zero‐dimensional carbon nanostructures have captivated excellent consideration and have ascended as a substitute to traditional metal‐based semiconductor QDs due to their intriguing estates like excellent photoluminescence, quantum yield, scalability, tuneable emission, biocompatibility, chemical inertness, and excellent hydrophilicity. These unique properties of zero‐dimensional carbon materials have inspired researchers to employ them in bioimaging, optoelectronic, catalytic, and energy storage applications. The last couple of years have perceived an incredible rise in the green synthetic strategies of carbon‐based QDs and their applications and this review familiarizes the reader with the current and significant progress in the synthesis of carbon‐based QDs/GQDs from various natural precursors with their quantum yields as well as intriguing applications in diverse fields. In addition, this communication not only delivers critical perceptions toward the development in the field of advanced energy devices but also highlights the advancements of these nanosized carbonaceous materials in the energy storage devices such as in supercapacitors and batteries. Also, it focuses on the broad scope of carbon nanomaterials and nanotechnology towards cutting‐edge research and expansion in the arena of energy storage applications of carbon‐based QDs.

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Stable GQD@PANi nanocomposites based on benzenoid structure for enhanced specific capacitance

Cited by 25 publications

References 55 publications

Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity

Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity

Photodegradation Effect on Electrical and Thermal Performance of Polyaniline‐Montmorillonite Nanocomposites

Green synthesis of zero‐dimensional carbon nanostructures in energy storage applications—A review

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Stable GQD@PANi nanocomposites based on benzenoid structure for enhanced specific capacitance

Cited by 25 publications

References 55 publications

Facile synthesis of loosely assembled α‐MnO 2 nanofiber coated with GQD / PANI for enhancing capacity

Facile synthesis of loosely assembled α‐MnO 2 nanofiber coated with GQD / PANI for enhancing capacity

Photodegradation Effect on Electrical and Thermal Performance of Polyaniline‐Montmorillonite Nanocomposites

Green synthesis of zero‐dimensional carbon nanostructures in energy storage applications—A review

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Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity

Facile synthesis of loosely assembled α‐MnO ₂ nanofiber coated with GQD / PANI for enhancing capacity