One-pot surface engineering of battery electrode materials with metallic SWCNT-enriched, ivy-like conductive nanonets

Yoo, JongTae; Ju, Young Wan; Jang, Ye Ri; Gwon, Ohhun; Park, Sodam; Kim, Ju Myung; Lee, Chang Kee; Lee, Sun Young; Yeon, Sun Hwa; Kim, Guntae; Lee, Sang Young

doi:10.1039/c6ta10675g

Cited by 7 publications

(5 citation statements)

References 47 publications

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“…The as-prepared SWCNT/PANI catalysts showed significantly enhanced fuel cell efficiency [115]. Yoo et al [113] prepared ivy-like conductive m-SWCNTs nanonets using a onepot surface engineering strategy as displayed in Figure 12a. The authors employed Nd0.5Sr0.5CoO3 (NSC)-perovskite as a catalyst for the ORR/OER to test the feasibility of m-SWCNTs.…”

Section: Single-walled Carbon Nanotube-based Materialsmentioning

confidence: 99%

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

et al. 2022

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Carbon-based nanocomposites have developed as the most promising and emerging materials in nanoscience and technology during the last several years. They are microscopic materials that range in size from 1 to 100 nanometers. They may be distinguished from bulk materials by their size, shape, increased surface-to-volume ratio, and unique physical and chemical characteristics. Carbon nanocomposite matrixes are often created by combining more than two distinct solid phase types. The nanocomposites that were constructed exhibit unique properties, such as significantly enhanced toughness, mechanical strength, and thermal/electrochemical conductivity. As a result of these advantages, nanocomposites have been used in a variety of applications, including catalysts, electrochemical sensors, biosensors, and energy storage devices, among others. This study focuses on the usage of several forms of carbon nanomaterials, such as carbon aerogels, carbon nanofibers, graphene, carbon nanotubes, and fullerenes, in the development of hydrogen fuel cells. These fuel cells have been successfully employed in numerous commercial sectors in recent years, notably in the car industry, due to their cost-effectiveness, eco-friendliness, and long-cyclic durability. Further; we discuss the principles, reaction mechanisms, and cyclic stability of the fuel cells and also new strategies and future challenges related to the development of viable fuel cells.

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Section: Single-walled Carbon Nanotube-based Materialsmentioning

confidence: 99%

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

et al. 2022

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“…Semiconducting SWCNTs, if made denser, also begin to take up lithium at levels that are comparable to metallic SWCNTs [ 177 ]. One of the most recent studies showed that mSWCNT-enriched ivylike conductive nanonets were presented as a facile and versatile surface engineering method for battery electrode materials [ 178 ]. About five times as many lithium ions can be stored in metallic CNTs than in semiconducting CNTs.…”

Section: Applications Of Type and Chirality-separated Swcntmentioning

confidence: 99%

Synthesis, Sorting, and Applications of Single-Chirality Single-Walled Carbon Nanotubes

et al. 2022

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The synthesis of high-quality chirality-pure single-walled carbon nanotubes (SWCNTs) is vital for their applications. It is of high importance to modernize the synthesis processes to decrease the synthesis temperature and improve the quality and yield of SWCNTs. This review is dedicated to the chirality-selective synthesis, sorting of SWCNTs, and applications of chirality-pure SWCNTs. The review begins with a description of growth mechanisms of carbon nanotubes. Then, we discuss the synthesis methods of semiconducting and metallic conductivity-type and single-chirality SWCNTs, such as the epitaxial growth method of SWCNT (“cloning”) using nanocarbon seeds, the growth method using nanocarbon segments obtained by organic synthesis, and the catalyst-mediated chemical vapor deposition synthesis. Then, we discuss the separation methods of SWCNTs by conductivity type, such as electrophoresis (dielectrophoresis), density gradient ultracentrifugation (DGC), low-speed DGC, ultrahigh DGC, chromatography, two-phase separation, selective solubilization, and selective reaction methods and techniques for single-chirality separation of SWCNTs, including density gradient centrifugation, two-phase separation, and chromatography methods. Finally, the applications of separated SWCNTs, such as field-effect transistors (FETs), sensors, light emitters and photodetectors, transparent electrodes, photovoltaics (solar cells), batteries, bioimaging, and other applications, are presented.

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“…Recently, Yoo et al introduced a new class of m‐SWCNT enriched, ivy‐like conductive nanonets using a poly(9,9‐di‐ n ‐octylfluorenyl‐2,7‐diyl) (PFO)‐based sonication/filtration process. PFO—a common dispersing agent—shows a higher affinity for the s‐SWCNTs than for the m‐SWCNTs.…”

Section: Applications Of Sorted Carbon Nanotubesmentioning

confidence: 99%

Section: Applications Of Sorted Carbon Nanotubesmentioning

confidence: 99%

“…Therefore, the development of efficient, highly stable and inexpensive OER and ORR catalysts are key challenges in large scale commercialization of water electrolyzers and hydrogen fuel cells, respectively . Yoo et al prepared ivy‐like conductive m‐SWCNT nanonets using a one‐pot surface engineering strategy (see details in Figure a). To explore the feasibility of the m‐SWCNTs, the authors used Nd 0.5 Sr 0.5 CoO 3‐δ (NSC) perovskite as a catalyst for the ORR/OER.…”

Section: Applications Of Sorted Carbon Nanotubesmentioning

confidence: 99%

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Recent Advances in Applications of Sorted Single‐Walled Carbon Nanotubes

Bati

Batmunkh

et al. 2019

Adv Funct Materials

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Single-walled carbon nanotubes (SWCNTs) exhibit outstanding properties that make them appealing in a wide range of applications. However, their properties are variable depending on the tube helicity (chirality), which has been a challenge for a long time and needs to be effectively controlled. In recent years, tremendous efforts have been made to control the electrical type/chirality of nanotubes through both direct controlled synthesis and postsynthesis separation methods. Driven by these breakthroughs, the applications of separated families of SWCNTs in various fields have emerged as a new topic of research. In this Review, an overview of recent advances in the use of highly purified and well-separated SWCNTs in a comprehensive range of applications is presented including photovoltaics, transistors, batteries, sensors, light emitters, biological/medical fields, and others. Finally, important future directions for the utilization of separated SWCNTs in these fields are provided.

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One-pot surface engineering of battery electrode materials with metallic SWCNT-enriched, ivy-like conductive nanonets

Abstract: A facile and versatile surface engineering method based on metallic single-walled carbon nanotube (mSWCNT)-enriched, ivy-like conductive nanonets (mSC nanonets) for electrode materials was presented.

Cited by 7 publications

References 47 publications

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

Synthesis, Sorting, and Applications of Single-Chirality Single-Walled Carbon Nanotubes

Recent Advances in Applications of Sorted Single‐Walled Carbon Nanotubes

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