Transforming waste polystyrene foam into N-doped porous carbon for capacitive energy storage and deionization applications

Deka, Namrata; Barman, Jayshree; Kasthuri, S.; Venkatramaiah, N.; Dutta, Gitish K.

doi:10.1016/j.apsusc.2020.145576

Cited by 60 publications

(26 citation statements)

References 81 publications

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“…Comparison of specific capacitances for CMS sample with carbon materials in relevant reports −1 /1 A•g −1 (−0.2-0.8 V) 1 M H 2 SO 4 250 W•kg −1 10.2 W•h•kg −1[30] …”

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confidence: 99%

Transforming waste polypropylene face masks into S-doped porous carbon as the cathode electrode for supercapacitors

Lin

2021

Ionics

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The spread of COVID-19 has led to an explosive increase in the number of waste polypropylene face masks worldwide, landfill and incineration of which will cause serious pollution and resource waste. This study aims to develop a new method for the safe and high-added value reuse of materials for polypropylene face masks based on carbonization of porous polymer. The waste masks were first sulfonated in an autoclave, then used as carbon source and turned into a dense hollow fiber porous structure after a one-step heat treatment. This porous structure has a high specific capacitance, namely 328.9 F g −1 at a current density of 1 A g −1. Besides, the assembled solid-state capacitor possesses a good energy density of 10.4 W h kg −1 at a power density of 600 W kg −1 , and excellent cycling stability with a capacitance retention rate of 81.1% after 3000 cycles. These findings indicate that the novel carbonization technology in this study can not only be used to obtain high-performance supercapacitor electrode materials but also provide a new idea for the recycling and utilization of wastes such as medical devices.

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“…Comparison of specific capacitances for CMS sample with carbon materials in relevant reports −1 /1 A•g −1 (−0.2-0.8 V) 1 M H 2 SO 4 250 W•kg −1 10.2 W•h•kg −1[30] …”

mentioning

confidence: 99%

Transforming waste polypropylene face masks into S-doped porous carbon as the cathode electrode for supercapacitors

Lin

2021

Ionics

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“…And these methods endow these polymers with diverse inner porosity and outer morphologies (Figure 1). On this basis, some unique properties are revealed on HCPs, and a wide range of practical and potential applications, such as catalysis [8][9][10], adsorption [11][12][13][14], separation, and energy storage/conversion [15][16][17], are also reported by these researchers [8,[11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 94%

Recent Advances in Nanofabrication of the Morphology-Controlled Hypercrosslinked Polymers

Song¹,

Zhang²,

Liu³

et al. 2021

MAHIG

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Hypercrosslinked Polymers (HCPs) have received considerable attention in the field of catalysis, adsorption, separation, biomedical engineering, and energy storage/conversion, because of their permanent microporous structures and high surface areas. Up to now, various "bottom-up" and "top-down" methods have been reported to synthesize of the HCPs with diverse morphologies, and these morphologies have been demonstrated to play a significant role in various applications. In this review, we summarized the latest research in the design of morphology-controlled HCPs by using three kinds of main methods and we also emphasized on the template free solutions. Furthermore, the future developments and challenges for fabricating of morphology-controlled HCPs are also presented in this review.

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“…The mesochannels lead to improved hydrophilicity and electrochemical conductivity with SAC of 26.2 mg/g (Figure 22b–d). Deka et al (2020) compared the electrosorption performance of nitrogen‐doped hierarchically porous carbons from expanded polystyrene foam (EPS) waste by carbonizing at 600, 700, and 800°C. The maximum SAC (34.8 mg/g) obtained by 700°C carbonization temperature having specific surface area of 810 m 2 /g and specific capacitance of 327 F/g.…”

Section: Materials Perspectivementioning

confidence: 99%

“…) Deka et al (2020). compared the electrosorption performance of nitrogen-doped hierarchically porous carbons from expanded polystyrene foam (EPS) waste by carbonizing at 600, 700, and 800 C. The maximum SAC (34.8 mg/g) obtained by 700 C carbonization temperature having specific surface area of 810 m 2 /g and specific capacitance of 327 F/g.Heteroatom co-doped carbonIn addition to nitrogen doping, phosphorus doping is also one of the chemical modification methods of carbon-based materials.…”

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confidence: 99%

Recent progress in materials and architectures for capacitive deionization: A comprehensive review

Datar

Mane

Jha

2022

Water Environment Research

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Capacitive deionization is an emerging and rapidly developing electrochemical technique for water desalination across the globe with exponential growth in publications. There are various architectures and materials being explored to obtain utmost electrosorption performance. The symmetric architectures consist of the same material on both electrodes, while asymmetric architectures have electrodes loaded with different materials. Asymmetric architectures possess higher electrosorption performance as compared with that of symmetric architectures owing to the inclusion of either faradaic materials, redox‐active electrolytes, or ion specific pre‐intercalation material. With the materials perspective, faradaic materials have higher electrosorption performance than carbon‐based materials owing to the occurrence of faradaic reactions for electrosorption. Moreover, the architecture and material may be tailored in order to obtain desired selectivity of the target component and heavy metal present in feed water. In this review, we describe recent developments in architectures and materials for capacitive deionization and summarize the characteristics and salt removal performances. Further, we discuss recently reported architectures and materials for the removal of heavy metals and radioactive materials. The factors that affect the electrosorption performance including the synthesis procedure for electrode materials, incorporation of additives, operational modes, and organic foulants are further illustrated. This review concludes with several perspectives to provide directions for further development in the subject of capacitive deionization. Practitioner Points Capacitive deionization (CDI) is a rapidly developing electrochemical water desalination technique with exponential growth in publications. Faradaic materials have higher salt removal capacity (SAC) because of reversible redox reactions or ion‐intercalation processes. Combination of CDI with other techniques exhibits improved selectivity and removal of heavy metals. Operational parameters and materials properties affect SAC. In future, comprehensive experimentation is needed to have better understanding of the performance of CDI architectures and materials.

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Transforming waste polystyrene foam into N-doped porous carbon for capacitive energy storage and deionization applications

Cited by 60 publications

References 81 publications

Transforming waste polypropylene face masks into S-doped porous carbon as the cathode electrode for supercapacitors

Transforming waste polypropylene face masks into S-doped porous carbon as the cathode electrode for supercapacitors

Recent Advances in Nanofabrication of the Morphology-Controlled Hypercrosslinked Polymers

Recent progress in materials and architectures for capacitive deionization: A comprehensive review

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