Impact of rare-earth metal oxide (Eu<sub>2</sub>O<sub>3</sub>) on the electrochemical properties of a polypyrrole/CuO polymeric composite for supercapacitor applications

Majumder, Mandira; Choudhary, R. N. P.; Thakur, Awalendra K.; Karbhal, Indrapal

doi:10.1039/c7ra01438d

Cited by 111 publications

(37 citation statements)

References 58 publications

(72 reference statements)

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“…For metal oxide electrode, poor cyclic stability due to structural damage during the redox process is common 47 . The coulombic/faradic efficiency was measured from ratio of discharging by charging time and demonstrates the practical applicability of electrode material for supercapacitor 48 . The coulombic efficiency increased over time and reached ~92% which validates the improved redox reversibility of electrode material 48 .…”

Section: Resultsmentioning

confidence: 82%

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Farzana

Hassan

Sahajwalla

2019

Sci Rep

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Manganese oxide (Mn 3 O 4 ) nanomaterials have promising potential to be used as supercapacitor electrode materials due to its high energy storage performance and environmental compatibility. Besides, every year huge volume of waste batteries including Zn-C battery ends up in landfill, which aggravates the burden of waste disposal in landfill and creates environmental and health threat. Thus, transformation of waste battery back into energy application, is of great significance for sustainable strategies. Compared with complex chemical routes which mostly apply toxic acids to recover materials from Zn-C battery, this study establishes the recovery of Mn 3 O 4 particles via thermal route within 900 °C under controlled atmosphere. Synthesized Mn 3 O 4 were confirmed by XRD, EDS, FTIR, XPS and Raman analysis and FESEM micrographs confirmed the coexistence of spherical and cubic Mn 3 O 4 particles. Mn 3 O 4 electrode derived from waste Zn-C battery demonstrate compatible electrochemical performance with standard materials and conventional synthesis techniques. Mn 3 O 4 electrode exhibited highest capacitance value of 125 Fg −1 at 5 mVs −1 scan rate. The stability of the electrode showed good retention in discharge and charge capacity by about 80% after 2100 cycles. This study demonstrates that waste Zn-C battery can be further utilized for energy storage application, providing sustainable and economic benefits.

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Section: Resultsmentioning

confidence: 82%

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Farzana

Hassan

Sahajwalla

2019

Sci Rep

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“…Clear fluorescence was observed when Dy 2 O 3 and Tb 4 O 7 were used as fillers for UDMA based composites [11]. Incorporation of Eu 2 O 3 into polypyrrole/CuO results in increasing of their capacitive performances [12]. In another study, it was demonstrated that adding Dy2O3 to the polyetheretherketone based composites increase their x-ray shielding properties [13].…”

Section: Introductionmentioning

confidence: 96%

Silicone elastomers filled with rare earth oxides

Iacob¹,

Airinei²,

Asăndulesa³

et al. 2020

Mater. Res. Express

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Silicones which possess, amongst others, remarkable mechanical properties, thermal stability over a wide range of temperatures and processability, and rare earth oxides (REO), known for their unique optic, magnetic and catalytic properties can be coupled into multifunctional composite materials (S-REOs). In addition, the intrinsic hydrophobicity of REO and polysiloxanes makes them easily compatible without the need for surface treatments of the former. Thus, europium oxide (Eu 2 O 3 ), gadolinium oxide (Gd 2 O 3 ) and dysprosium oxide (Dy 2 O 3 ) in amounts of 20 pph are incorporated as fillers into silicone matrices, followed by processing mixture as thin films and crosslinking at room temperature. The analysis of the obtained films reveals the changes induced by these fillers in the thermal, mechanical, dielectric and optical properties, as well as the hydrophobicity of the silicones. The luminescence properties of S-REO composites were investigated by fluorescence spectra and lifetime -resolved measurements with a multiemission peaks from blue to greenish register. The thermogravimetrical analysis indicates an increasing of thermal stability of the composites that contain REO, compared to pure silicone. As expected, the dielectric permittivity significantly increased due to nature of the fillers, while the dielectric loss values are relatively low for all samples, indicating a minimal conversion of electrical energy in the form of heat within bulk composites. The presence of rare earth oxides into the silicone matrix facilitates the motions of long-range charge carriers through the network resulting in higher values of conductivity of the composite films. The stress-strain measurements revealed the reinforcing effect of the rare earth metal oxides on a silicone matrix, leading to a significant increase of Young modulus. The known hydrophobicity of silicones is further enhanced by the presence of REO.

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“…[ 18–20 ] On the contrary, electrode materials such as transition metal oxides (TMOs)/transition metal hydroxides (TMHOs) (RuO 2 , MnO 2 , Co 3 O 4 , NiCo 2 O 4 , Ni(OH) 2 , Co(OH) 2 , etc. ), [ 21–38 ] conducting polymers (CPs) (polyaniline [PANI], polypyrrole [PPy], PTh, poly(3,4,‐ethylenedioxythiophene) [PEDOT]), [ 39–46 ] transition metal chalcogenides (TMCs) (MoS 2 , VS 2 , NiS 2 , CoSe, NiSe, MoSe 2 , MoTe 2 , NiCo 2 S 4 ), [ 47–73 ] and other materials such as MXene, [ 8,74–78 ] black phosphorus, [ 79 ] metal nitrides, rare‐earth oxide/hydroxides, [ 80–84 ] and metal–organic framework (MOF) [ 85–87 ] show a redox reaction mechanism which comes under pseudocapacitance category. Generally, these two electrode materials are merged to form composites or hybrids electrode materials are exhibiting better electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Graphene‐Based Microsupercapacitors

et al. 2021

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The fast growing field of microsized electronic devices has urgent demand for next‐generation microscale, flexible, and lightweight energy conversion and storage devices. Among the various microdevices, microsupercapacitors (MSCs) are a promising energy storage device due to their fast rechargeability, better rate capability, long cycle life, and ultrahigh power density. The 2D graphene possesses a large surface area with flexibility, better conductivity, transparency, and high quantum capacitance that lead to an ideal energy storage material for the MSCs. Therefore, this review aims to summarize recent advances in graphene‐based MSCs. A particular emphasis is put on the various fabrication technologies for MSCs such as printing, laser, wet‐spin, and photolithography technique that are discussed elaborately. Moreover, an overview of the state‐of‐the‐art on graphene‐based electrode materials and its different composite with transition metal oxides, transition metal hydroxides, conducting polymers, transition metal chalcogenides, and MXene‐based electrode materials for MSCs are discussed and their electrochemical performances are summarized. Furthermore, this review concludes with perspectives and outlooks.

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Impact of rare-earth metal oxide (Eu₂O₃) on the electrochemical properties of a polypyrrole/CuO polymeric composite for supercapacitor applications

Abstract: A ternary composite of polypyrrole/copper oxide/europium oxide (PPY/CuO/Eu2O3), synthesized via a facile in situ chemical oxidative polymerization method, exhibits the maximum specific capacitance of 320 F g−1 at the current density of 1 A g−1.

Cited by 111 publications

References 58 publications

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Silicone elastomers filled with rare earth oxides

Recent Progress in Graphene‐Based Microsupercapacitors

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Impact of rare-earth metal oxide (Eu2O3) on the electrochemical properties of a polypyrrole/CuO polymeric composite for supercapacitor applications

Abstract: A ternary composite of polypyrrole/copper oxide/europium oxide (PPY/CuO/Eu2O3), synthesized via a facile in situ chemical oxidative polymerization method, exhibits the maximum specific capacitance of 320 F g−1 at the current density of 1 A g−1.

Cited by 111 publications

References 58 publications

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Manganese oxide synthesized from spent Zn-C battery for supercapacitor electrode application

Silicone elastomers filled with rare earth oxides

Recent Progress in Graphene‐Based Microsupercapacitors

Contact Info

Product

Resources

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Impact of rare-earth metal oxide (Eu₂O₃) on the electrochemical properties of a polypyrrole/CuO polymeric composite for supercapacitor applications