Mass-producible polyhedral macrotube carbon arrays with multi-hole cross-section profiles: superb 3D tertiary porous electrode materials for supercapacitors and capacitive deionization cells

Ma, Xiumei; Wu, Qinghao; Wang, Wei; Lu, Shanfu; Xiang, Yan; Aurbach, Doron

doi:10.1039/d0ta00682c

Cited by 41 publications

(17 citation statements)

References 56 publications

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“…The higher CDI performance of 750°C material can be contributed to its high specific surface area and suitable pore structure. The electrosorption performance of 3D porous carbon by carbonization process of lotus stems at 400, 500, and 600°C was compared by Ma, Wu, et al (Ma, Wu, et al, 2020). The sample carbonized at 500°C outperforms than the other two samples.…”

Section: Materials Perspectivementioning

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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Section: Materials Perspectivementioning

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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“…Hierarchically porous carbon [91][92][93][94] 3D carbon aerogel [96,97] Low tap density High surface area More exposed surface area for charge storage…”

Section: Dmentioning

confidence: 99%

“…For example, Zhou et al [91] successfully prepared a 3D hierarchically interconnected porous carbon material through the pyrolysis of Rhus typhina fruit followed by post-activation in which the pores inside the Rhus typhina fruit precursor were well maintained without significant collapse during preparation, resulting in widespread porous distribution in the as-acquired carbon material. Ma et al [92] also easily mass-produced polyhedral macrotube carbon arrays with a hierarchical porous structure using lotus stems and reported that benefitting from a unique tertiary porous structure with hierarchical porosity and large SSA (> 2500 m 2 g -1 ), the sample exhibited a high specific capacitance of > 370 F g -1 at 1 A g -1 in 6 M KOH and achieved an energy density of 9.3 Wh kg −1 in a symmetric SC device. The direct carbonization of biomass precursors without pretreatment is another method to obtain 3D structures with abundant pores.…”

Section: Three-dimensional Porous Structuresmentioning

confidence: 99%

Biomass-Derived Carbon Materials for High-Performance Supercapacitors: Current Status and Perspective

Zhou

Zhang

Zhou

et al. 2021

Electrochem. Energ. Rev.

133

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Supercapacitors are electrochemical energy storage systems that depend on high-surface-area electrodes and can play a dominant role in areas that require high power delivery or uptake. And of various electrodes, biomass-derived carbonaceous electrodes have recently shown impressive promise in high-performance supercapacitors because of their widespread availability, renewable nature and low-cost electricity storage. Based on this, this review will discuss the current status of biomass-derived carbon materials in supercapacitors and highlight current research with a specific emphasis on the influences of structure and elemental doping on the electrochemical performance of corresponding carbon electrodes. This review will also discuss the gap between laboratory achievements and practical utilization in terms of these biomass-derived carbon materials and outline practical strategies for future improvement.

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“…[35,36] Energy storage mainly occurs in smaller micropores, and a large number of micropores and trace mesopores are connected to each other. [37] This is the necessary property of SCs with excellent performance. It is speculated that LRKC8-5 has better electro-chemical performance.…”

Section: Materials Characterizationsmentioning

confidence: 99%

Design and Preparation of Lotus Root Knot Hierarchical Porous Carbon by Highly Efficient Chemistry Activation for Electric Double Layer Capacitors

2021

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In this work, utilizing lotus root knot as raw material, nitrogen and oxygen co-doped hierarchical porous carbon with appropriate heteroatom doping, multi-connected 3D pore structure and suitable pore size distribution were produced by carbonization and chemical activation step. The maximum specific surface area the biochar material reached was 3659 m 2 g À 1 . These physical properties exhibit ultrahigh specific capacitance of up to 454.3 F g À 1 in a supercapacitor of the three-electrode system under the current density of 1 A g À 1 and a capacitance retention rate of 81.5 % within the range of 1 ~10 A g À 1 . Furthermore, the specific capacitance is maintained at 91.5 % of the initial value in a two-electrode system after 10,000 cycles. In a two-electrode system with tetraethylammonium tetrafluoroborate (TEABF 4 )/acetonitrile (ACN) solution as the electrolyte. The voltage window attained was 3 V with high energy density of 51.4 Wh kg À 1 under the power density of 750 W kg À 1 . These results show that the assembled supercapacitors provide excellent energy and power density at the same time.

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Mass-producible polyhedral macrotube carbon arrays with multi-hole cross-section profiles: superb 3D tertiary porous electrode materials for supercapacitors and capacitive deionization cells

Abstract: Supercapacitors and capacitive deionization (CDI) cells used for energy storage and water desalination, respectively, are related devices which are based on intensive adsorption of ions to highly porous electrodes. Engineering...

Cited by 41 publications

References 56 publications

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

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

Biomass-Derived Carbon Materials for High-Performance Supercapacitors: Current Status and Perspective

Design and Preparation of Lotus Root Knot Hierarchical Porous Carbon by Highly Efficient Chemistry Activation for Electric Double Layer Capacitors

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