Li–air battery and ORR activity of nanocarbons produced with good synthesis rate by solution plasma process

Islam, Md. Zahidul; Watthanaphanit, Anyarat; Chae, Sangwoo; Saito, Nagahiro

doi:10.1039/d0ma00926a

Cited by 5 publications

(4 citation statements)

References 50 publications

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“…Islam et al [33] compared the effects of grafting different functional groups on benzene by comparing C6H6 to aniline (NH2-C6H5) and nitrobenzene (NO2-C6H5). As expected, the resulting nanocarbons exhibited different chemical structures, including C-N and N=O bonds for nitrobenzene and C-N and N-H bonds for aniline.…”

Section: Structures Of Precursorsmentioning

confidence: 99%

“…Chokradjaroen et al [30] and Islam et al [33] investigated cathodic materials that can efficiently catalyze the oxygen reduction reaction for use in energy-conversion Li-O2 batteries. The former synthesized simultaneously amorphous carbon containing boron (from tributyl-borate) and tungsten carbide (W was from the electrodes) in suspension in the liquid phase, along with graphite-like carbon, as precipitate.…”

Section: Batteriesmentioning

confidence: 99%

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Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

Belmonte

Noël

Gries

et al. 2023

Plasma Chem Plasma Process

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Electrical discharges in liquids are used to synthesize and process nanoobjects with breakthrough achievements that lead to high expectations in the field. As plasmas are non-equilibrium media, the possibility to access novel compositions, shapes, structures, etc. is often put forward as major argument to promote these processes. Two main classes of processes are considered in this review: the so-called "solution plasma" and glow-discharge electrolysis. The influence of the main parameters controlling the selected processes is discussed. Applications are also presented together with expectations on breakthrough achievements awaited for these processes. Solution characteristics Electrical conductivityElectrical conductivity is generally the key factor that determines the applied voltage required for breakdown and discharge ignition. The lower the conductivity, the higher the voltage needed to achieve reproducible discharges, and the shorter the pulse width.

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Section: Structures Of Precursorsmentioning

confidence: 99%

Section: Batteriesmentioning

confidence: 99%

Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

Belmonte

Noël

Gries

et al. 2023

Plasma Chem Plasma Process

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“…The simultaneous syntheses and surface modifications of carbon materials via SP processes have rarely been investigated because of the deterioration of the functional groups of the precursors. Cyclic precursors containing various functional groups, such as methyl (toluene), 22 trifluoromethyl (trifluorotoluene), 22 amino (aniline), 23 and nitroso (nitrobenzene) 24 groups, have been employed as starting materials in fabricating carbon. During electron transfer at the reaction site, the chemical functional group is deteriorated by the high energy required to form the element.…”

Section: ■ Introductionmentioning

confidence: 99%

“…During electron transfer at the reaction site, the chemical functional group is deteriorated by the high energy required to form the element. Subsequently, the generated element is incorporated into the carbon framework, resulting in multielement-doped carbon formation. − Therefore, synthesizing carbon materials via single-step carbonization and surface modification using the SP process is a critical challenge, and success may represent a breakthrough in the field of materials science.…”

Section: Introductionmentioning

confidence: 99%

Nanoarchitectonics Solution Plasma Polymerization of Amino-Rich Carbon Nanosorbents for Use in Enhanced Fluoride Removal

Tipplook,

Tanaka,

Sudare

et al. 2024

ACS Appl. Mater. Interfaces

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Amino-functionalized carbon (NH 2 C) is an effective adsorbent in removing pollutants from contaminated water because of its high specific surface area and electrical charge. In the conventional preparation method, the introduction of amino groups onto the carbon surface is limited, resulting in low pollutant adsorption. Herein, we present simultaneous carbonization and amination to form NH 2 C via electrical discharge of nonequilibrium plasma, and the resultant material is applied as an effective adsorbent in fluoride removal. The simultaneous process introduces numerous amino groups into the carbon framework, enhancing the adsorption efficiency. The fluoride adsorption capacity is approximately 121.12 mg g −1 , which is several times higher than those reported in previous studies. Furthermore, computational modeling is performed to yield deeper mechanistic insights into the molecular-level adsorption behavior. These data are useful in designing and synthesizing advanced materials for applications in water remediation.

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Structure and properties of nanocarbons-encapsulated WC synthesized by solution plasma process in palm oils

et al. 2021

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Palm oil is produced in the ASEAN region. The overhang of stocks, propellant fouling in the production process and used oils existed there. It is a crucial issue to make efficient use of such palm oils. Solution plasma process (SPP) is one step non-thermal plasma in the liquid phase. Our laboratory has already synthesized the nanocarbons materials, graphene, hetero-graphene from organic molecules by SP. Organic ones engineer these material sources. When the functionalized nanocarbon can be synthesized from natural products and their dust, the functionalized carbon materials are supplied by the green process and low price. We had already synthesized nanocarbons by SP from the palm oils. The nanocarbons were covered enhanced electrical conductivity of nanocarbons, which is referred to the nanocarbons-encapsulated WC (tungsten carbides). In this study, we aimed to evaluate the structure and the properties of nanocarbons-encapsulated WC to provide the nanocarbons-encapsulated. The solution plasma was generated by the bipolar pulsed power supply through two tungsten electrodes using 2 μs pulse widths and frequencies (100, 150, and 180 kHz) for 30 min. We found that the observed plasma types depended on the discharge conditions. Conversion percentage of the oil to WC-encapsulated nanocarbon (% yield) was increased with frequency. The obtained X-ray diffraction patterns are showed the crystalline structure. The morphology of nanocarbon capsules WC are spherical shapes and less than 10 nm size. The electrochemical properties indicate that the ORR activity in an acidic medium under saturated O2 significantly disappears in the case of the nanocarbon-encapsulated WC synthesised in the high frequency (180 kHz). The synthesized nanocarbons-encapsulated WC might be applied in data storage and energy applications.

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Li–air battery and ORR activity of nanocarbons produced with good synthesis rate by solution plasma process

Abstract: Nanocarbons were successfully synthesized from benzene (BZ), nitro-benzene (BZ-NO2) and aniline (BZ-NH2) by Solution Plasma Process (SPP). The SPP generated by a bipolar pulsed power supply between two tungsten electrodes...

Cited by 5 publications

References 50 publications

Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

Nanoarchitectonics Solution Plasma Polymerization of Amino-Rich Carbon Nanosorbents for Use in Enhanced Fluoride Removal

Structure and properties of nanocarbons-encapsulated WC synthesized by solution plasma process in palm oils

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