Encapsulation of organic active materials in carbon nanotubes for application to high-electrochemical-performance sodium batteries

Kim, Jae Kwang; Kim, Yong‐Il; Park, Seung-Young; Ko, Hyunhyub; Kim, Young‐Sik

doi:10.1039/c5ee02806j

Cited by 166 publications

(113 citation statements)

References 33 publications

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“…2017, 7, 1601792 www.advenergymat.de www.advancedsciencenews.com insertion/extraction at high voltages, but also n-doping and de n-doping reactions with Na-ion insertion and extraction at relative low voltages. [18] They adopted a facile method to encapsulate PTMA into carbon nanotubes with diameter of about 100 to 300 nm. 54, Figure 10) [72] was initially reported as a possible cathode for SIBs with the electrolyte of 1 m NaClO 4 / (ethylene carbonate) EC-(dimethyl carbonate) DMC.…”

Section: Organic Radical Compoundsmentioning

confidence: 99%

Advanced Organic Electrode Materials for Rechargeable Sodium‐Ion Batteries

Zhao

Lü

Chen

2016

Advanced Energy Materials

481

322

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Benefiting from the high abundance and low cost of sodium resource, rechargeable sodium‐ion batteries (SIBs) are regarded as promising candidates for large‐scale electrochemical energy storage and conversion. Due to the heavier mass and larger radius of Na+ than that of Li+, SIBs with inorganic electrode materials are currently plagued with low capacity and insufficient cycling life. In comparison, organic electrode materials display the advantages of structure designability, high capacity and low limitation of cationic radius. However, organic electrode materials also encounter issues such as high‐solubility in electrolyte and low conductivity. Here, recently reported organic electrode materials, which mainly include the reactions based on either carbon‐oxygen double bond or carbon‐nitrogen double bond, and doping reactions, are systematically reviewed. Furthermore, the design strategies of organic electrodes are comprehensively summarized. The working voltage is regulated through controlling the lowest unoccupied molecular orbital energies. The theoretical capacity can be enhanced by increasing the active groups. The dissolution is inhibited with elevating the intermolecular forces with proper molecular weight. The conductivity can be improved with extending conjugated structures. Future research into organic electrodes should focus on the development of full SIBs with aqueous/aprotic electrolytes and long cycling stability.

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Section: Organic Radical Compoundsmentioning

confidence: 99%

Advanced Organic Electrode Materials for Rechargeable Sodium‐Ion Batteries

Zhao

Lü

Chen

2016

Advanced Energy Materials

481

322

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“…63 ) and poly(2,2,6,6‐tetra methylpiperidinyloxy‐4‐vinylmethacrylate) (PTMA, No. 64 ) were investigated on OSIBs in the past decades . Their structural units all contain nitroxyl radical 2,2,6,6‐tetramethyl‐1‐piperidinyloxy (TEMPO).…”

Section: Research Progress Of Organic Electrode Materialsmentioning

confidence: 99%

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Yin

Sarkar

Shi

et al. 2020

Adv Funct Materials

215

113

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Rechargeable sodium‐ion batteries (SIBs) are considered attractive alternatives to lithium‐ion batteries for next‐generation sustainable and large‐scale electrochemical energy storage. Organic sodium‐ion batteries (OSIBs) using environmentally benign organic materials as electrodes, which demonstrate high energy/power density and good structural designability, have recently attracted great attention. Nevertheless, the practical applications and popularization of OSIBs are generally restricted by the intrinsic disadvantages related to organic electrodes, such as their low conductivity, poor stability, and high solubility in electrolytes. Here, the latest research progress with regard to electrode materials of OSIBs, ranging from small molecules to organic polymers, is systematically reviewed, with the main focus on the molecular structure design/modification, the electrochemical behavior, and the corresponding charge‐storage mechanism. Particularly, the challenges faced by OSIBs and the effective design strategies are comprehensively summarized from three aspects: function‐oriented molecular design, micromorphology regulation, and construction of organic–inorganic composites. Finally, the perspectives and opportunities in the research of organic electrode materials are discussed.

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“…Previously, researchers used SWNT FETs to investigate charge transfer between fullerene and SWNTs. For example, Li et al showed that carbon peapods display a photo‐induced electron transfer from encapsulated C 60 to SWNTs, exhibiting p ‐type characteristic on illumination . Park et al reported thermally deposited C 60 on SWNTs resulting in ambipolar SWNT FETs and a left shift of the threshold voltage, which became stronger with the increasing thickness of the deposited C 60 .…”

Section: Resultsmentioning

confidence: 99%

Investigation of charge interaction between fullerene derivatives and single‐walled carbon nanotubes

Delacou

Jeon

Otsuka

et al. 2019

InfoMat

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The charge interaction and corresponding doping effect between single‐walled carbon nanotubes (SWNTs) and various fullerene derivatives, namely, C60, phenyl‐C61‐butyric acid methyl ester (PC61BM), methano‐indenefullerene (MIF), 1′,1″,4′,4″‐tetrahydrodi[1,4]methanonaphthaleno[5,6]fullerene (ICBA), 1,4‐bis(dimethylphenylsilylmethyl)[60]fullerene (SIMEF‐1), and dimethyl(orthoanisyl) silylmethyl(dimethylphenylsilylmethyl)[60]fullerene (SIMEF‐2), are investigated. A variety of analytical techniques, including field‐effect transistors (FETs) made of horizontally aligned arrays of SWNTs, is used as a means of investigation. Data from different measurements have to be used to obtain a concrete evaluation for the fullerene‐applied SWNTs. The data collectively points toward the conclusion that fullerenes with high molecular orbital energy levels, namely, MIF, SIMEF‐1, SIMEF‐2, and PC61BM, induce p‐type doping, while fullerenes with low molecular orbital energy levels, namely, ICBA and C60, induce n‐type doping on the carbon nanotubes. Nevertheless, the SWNTs retained p‐type characteristics because n‐doping induced by the fullerenes are weak compared to the p‐doping of the water and oxygen on carbon nanotubes. This means that fullerene derivatives have the ability to fine‐tune the energy levels of carbon nanotubes, which can play a crucial role in carbon nanotube‐based electronics, such as solar cells, light‐emitting devices, and FETs.

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Encapsulation of organic active materials in carbon nanotubes for application to high-electrochemical-performance sodium batteries

Abstract: A PTMA-impregnated CNT electrode achieves the enhancement of discharge capacity, cycleability and rate capability of sodium batteries.

Cited by 166 publications

References 33 publications

Advanced Organic Electrode Materials for Rechargeable Sodium‐Ion Batteries

Advanced Organic Electrode Materials for Rechargeable Sodium‐Ion Batteries

Recent Progress in Advanced Organic Electrode Materials for Sodium‐Ion Batteries: Synthesis, Mechanisms, Challenges and Perspectives

Investigation of charge interaction between fullerene derivatives and single‐walled carbon nanotubes

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