A semi-transparent polyurethane/porous wood composite gel polymer electrolyte for solid-state supercapacitor with high energy density and cycling stability

Hou, Pu; Gao, Chenxiang; Wang, Jian; Zhang, Jiuzhou; Liu, Yang; Gu, Jiyou; Huo, Pengfei

doi:10.1016/j.cej.2022.139954

Cited by 32 publications

(7 citation statements)

References 54 publications

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“…Finally, while the specific capacitance of approximately 56 F/g is on the lower side, our current research catalyzes future studies that could propose enhancements to boost electrochemical performance. Potential avenues for improvement include: (i) optimizing pore size and distribution by weak base-assisted hydrolysis [ 57 ], (ii) refining electrolyte selection, (iii) integrating conductive additives like carbon black or graphene [ 58 ], (iv) doping with heteroatoms such as nitrogen, boron, or sulfur [ 59 ], (v) meticulously adjusting the activation process parameters like temperature, duration, or chemical concentrations, and (vi) enhancing the packing density of the activated carbon within the electrode to potentially elevate the volumetric capacitance and the development of more complex systems such as gel polymer electrolytes (GPEs) with high ionic conductivity [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

Stable Supercapacitors Based on Activated Carbon Prepared from Italian Orange Juice

Scarcello,

Alessandro,

Cruz Salazar

et al. 2023

Nanomaterials

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The development of efficient energy storage systems is critical in the transition towards sustainable energy solutions. In this context, the present work investigates the viability of using orange juice, as a promising and sustainable precursor, for the synthesis of activated carbon electrodes for supercapacitor technologies. Through the carbonization-activation process and controlling the preparation parameters (KOH ratio and activation time), we have tailored the specific surface area (SSA) and pore size distribution (PSD) of the resulting carbon materials—crucial parameters that support supercapacitive performance. Several spectroscopic, morphological, and electrochemical techniques are used to characterize the obtained carbon materials. In particular, our optimization efforts revealed that a 5:1 KOH ratio with an activation time up to 120 min produced the highest SSA of about 2203 m2/g. Employing these optimal conditions, we fabricated symmetric coin cell supercapacitors using Na2SO4 as the electrolyte, which exhibited interesting specific capacitance (~56 F/g). Durability testing over 5000 cycles sustained the durability of the as-made activated carbon electrodes, suggesting an excellent retention of specific capacitance. This study not only advances the field of energy storage by introducing a renewable material for electrode fabrication but also contributes to the broader goal of waste reduction through the repurposing of food byproducts.

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Section: Discussionmentioning

confidence: 99%

Stable Supercapacitors Based on Activated Carbon Prepared from Italian Orange Juice

Scarcello,

Alessandro,

Cruz Salazar

et al. 2023

Nanomaterials

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“…8 Compared with ceramics 9,10 and carbonaceous materials, 11 polymer materials are considered to be more suitable for constructing ion channels because of their low cost, easy processability and good flexibility. 12 Nevertheless, two key issues remain. First, polymer materials usually show high insulation and poor electrical conductivity, which can deteriorate the electrochemical performance of electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Wood-based electrolyte with reversible phase transition for smart thermal-shutdown self-protection

Zeng,

Lai,

et al. 2024

J. Mater. Chem. A

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“…Various traditional thermoplastics such as polythene, polypropylene, acrylonitrilebutadiene-styrene copolymers, polyamide, polystyrene, poly(methyl methacrylate), poly(vinyl acetate), and polycarbonate were used as matrixes of polymer-wood composites [3][4][5][6][7][8][9][10]. These materials were also manufactured using thermosetting plastics like epoxy, polyurethane, and phenolic resin [11][12][13][14][15][16]. Fibre, wood chips, sawdust, and wood flour were used as fillers [3,4,8,9,11].…”

Section: Introductionmentioning

confidence: 99%

Composite of Poly(Vinyl Chloride) Plastisol and Wood Flour as a Potential Coating Material

Siekierka,

Makarewicz,

Wilczewski

et al. 2023

Coatings

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This paper presents the results of a study of the properties of a new composite material made from poly(vinyl chloride) plastisol (PVC) and conifer-derived wood flour. The material can be used for thermal insulation, floor coverings with high resistance to mechanical trauma, and protective coatings. The plastisol was made from emulsion poly(vinyl chloride), the plasticiser was bis(2-ethylhexyl) adipate, and the stabiliser was octyltin mercapeptide. Two types of flour were used: fine-grained and coarse-grained. Its properties, such as bulk density, oil number, and plasticiser number, were determined. The polymer-wood composite contained 20 or 30 wt.% wood flour in PVC. Plastisol was obtained by repeated mixing, mashing, and venting under vacuum. The produced composite material was gelated at temperatures of 130, 150, and 170 °C. The gelation process of the composites was studied in a Brabender apparatus. Samples in the form of polymer films were used to study density, hardness, thermal stability, and mechanical and thermomechanical properties. The structure of the composites was observed by scanning electron microscopy (SEM). A summary of all test results showed that composite films made from PVC plastisol with 20 wt.% of fine wood flour gelled at 150 °C had the most favourable physical, mechanical, and thermal properties.

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A semi-transparent polyurethane/porous wood composite gel polymer electrolyte for solid-state supercapacitor with high energy density and cycling stability

Cited by 32 publications

References 54 publications

Stable Supercapacitors Based on Activated Carbon Prepared from Italian Orange Juice

Stable Supercapacitors Based on Activated Carbon Prepared from Italian Orange Juice

Wood-based electrolyte with reversible phase transition for smart thermal-shutdown self-protection

Composite of Poly(Vinyl Chloride) Plastisol and Wood Flour as a Potential Coating Material

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