Processing of α-Fe2O3 Nanoparticles on Activated Carbon Cloth as Binder-Free Electrode Material for Supercapacitor Energy Storage

Orisekeh, Kingsley; Singh, Basudeo; Olanrewaju, Yusuf A.; Kigozi, Moses; Ihekweme, Gina Odochi; Umar, Sadiq A.; Anye, Vitalis C.; Bello, Abdulhakeem; Parida, Smrutiranjan; Soboyejo, W. O.

doi:10.1016/j.est.2020.102042

Cited by 37 publications

(16 citation statements)

References 53 publications

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“…Iron oxides (FeO, Fe 2 O 3 , and Fe 3 O 4 ) have generated a great deal of research interest in energy storage applications due to their high theoretical capacity, easy availability, and low cost. [139][140][141][142][143][144][145][146][147][148][149][150][151][152][153][154][155][156] However, it has been observed that FeO is unstable and hard to isolate, and for these reasons, mainly Fe 2 O 3 and Fe 3 O 4 have been considered for SC applications. These oxides have been synthesized in different morphologies, including nanowires, nanoparticles, thin lms, nanorods, nanotubes, microspheres, etc.…”

Section: Single Metal Oxidementioning

confidence: 99%

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

et al. 2022

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Section: Single Metal Oxidementioning

confidence: 99%

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

et al. 2022

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“…Despite the binderless approach, the precursors involved chlorine which was evaporated on large scale is a toxic waste. 273 Ions of a desirable deposition specimen are oxidized or reduced, allowing the nanoparticles to form bulk material. For the formation of film comprised of nanoparticles, it is essential to add surfactant or polymer to ensure the molecular species is able to hold on to the bulk deposition under the potential change.…”

Section: Hydrothermal/solvothermal Synthesismentioning

confidence: 99%

A review on the advances in electrochemical capacitive charge storage in transition metal oxide electrodes for pseudocapacitors

Khot

Kiani

2022

Intl J of Energy Research

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Summary With the remarkable growth in renewable energy and zero‐commission commitments, the requirement for energy storage has driven the research by a storm. The supercapacitor is one of the energy storage technologies that have seen significant contributions in recent applications. With the aim of increasing the specific capacitance and the energy density, extensive research is carried out to improve the electrode characteristics. Although recent work has shown great progress in improving the performance of these electrodes, the practicality and scalability of the presented synthesis or fabrication methods seem near impossible. Electric double‐layer capacitors are already commercialized and have had great success, pseudocapacitors on the other hand are yet to make it into the industry due to various manufacturing challenges and tremendous complexity involved. In this comprehensive review, a summary of various nanosynthesis methods with their advantages and drawbacks is presented. It proceeds by briefly highlighting various supercapacitors followed by emphasizing the characteristics of electrodes as well as a few objectives that need to be considered during the fabrication. Also reviewed in this paper is much research that demonstrates remarkable performance but also brings to highlight the drawbacks during electrode preparation. In addition, a significant emphasis is placed on green synthesis, an economical approach for the development of the supercapacitor electrode.

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“…However, there are significant fire and explosion risks that are associated with the chemical instability of liquid electrolytes, for example, due to the presence of carbonates that are highly volatile and flammable. 1,2 Solid electrolytes (SEs) offer promising and viable alternatives that reduce the safety risks associated with the use of liquid electrolytes. Among all SEs, polymer-based SEs are preferred because of their low flammability, good flexibility, excellent thermal stability, and high safety.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of polyvinylpyrrolidone/polyvinyl alcohol‐based solid electrolytes

Orisekeh

Anye

Oyewole

et al. 2022

J of Applied Polymer Sci

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The demand for flexible, lightweight, and long-lasting energy devices has stimulated interest in solid polymer blends. The conventional lithium-ion batteries use liquid electrolytes that are chemically unstable due to the presence of carbonates, which are highly volatile and flammable, creating a significant safety risk. Therefore, the need for the development of solid-state electrolytes that are safe, environmentally friendly, with robust mechanical properties. In this work, the solid polymer blend is explored using a mixture of a polymer matrix of polyvinylpyrrolidone/polyvinyl alcohol and lithium perchlorate salt. The produced films are characterized using a scanning electron microscopy, X-ray diffraction, and Fourier transform infrared. The mechanical properties of the flexible films are also measured using nanoindentation techniques, statistical deconvolution mapping, tensile tests, and fracture toughness measurements. (Young's modulus of 6.87 GPa, hardness of 1.3 GPa, tensile strength of 4.3 MPa, and fracture toughness of 0.81 MPa.m 0.5 ) The implications of the results are then discussed for potential applications of robust solid polymer blends-based electrolytes.

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Processing of α-Fe2O3 Nanoparticles on Activated Carbon Cloth as Binder-Free Electrode Material for Supercapacitor Energy Storage

Cited by 37 publications

References 53 publications

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

A review on the advances in electrochemical capacitive charge storage in transition metal oxide electrodes for pseudocapacitors

Mechanical properties of polyvinylpyrrolidone/polyvinyl alcohol‐based solid electrolytes

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