Synthesis of graphene-related carbon nanoparticles from a liquid isopropanol precursor by a one-step atmospheric plasma process

被引：7

作者：

Bodnar, W. ^{[1
]}

Schiorlin, M. ^{[1
]}

Frank, A. ^{[2
]}

Schulz, T. ^{[1
]}

Woehrl, N. ^{[3
,4
]}

Miron, C. ^{[1
,5
]}

Scheu, C. ^{[2
,6
]}

Kolb, J. F. ^{[1
]}

Kruth, A. ^{[1
]}

机构：

[1] Leibniz Inst Plasma Sci & Technol, Felix Hausdorff Str 2, D-17489 Greifswald, Germany

[2] Max Planck Inst Iron Res GmbH, Max Planck Sir 1, D-40237 Dusseldorf, Germany

[3] Univ Duisburg Essen, Fac Phys, Lotharstr 1, D-47057 Duisburg, Germany

[4] Univ Duisburg Essen, CENIDE, Lotharstr 1, D-47057 Duisburg, Germany

[5] Shibaura Inst Technol, Koto Ku, 3 Chome 7-5 Toyosu, Tokyo 1358548, Japan

[6] Rhein Westfal TH Aachen, Mat Analyt, Kopernikusstr 10, D-52074 Aachen, Germany

来源：

APPLIED SURFACE SCIENCE | 2020年 / 514卷

关键词：

Nanographite; Graphene; Plasma-in-liquid; Raman spectroscopy; Transmission electron microscopy; Gas chromatography - mass spectrometry; GAS-PHASE SYNTHESIS; GRAPHITE NANOSHEETS; RAMAN-SPECTROSCOPY; LAYERED GRAPHENE; DISCHARGE; EXFOLIATION; NANOTUBES; DISORDER; SHEETS; FILMS;

D O I：

10.1016/j.apsusc.2020.145926

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study presents a cost-efficient single-step-method to synthesize nanographite from isopropanol by bipolar pulsed electric discharges. The influence of pulse width within the nanosecond range, repetition frequency within the kilohertz range and processing time on the product was systematically investigated by Raman spectroscopy, high-resolution transmission electron microscopy and gas chromatography - mass spectrometry. It was found that long pulses in the microsecond range promote the creation of amorphous and oxidic carbon structures. Although, hydrocarbon cracking and subsequent graphitization do occur, these process conditions are not suitable to drive intermediate reduction processes. In contrast, applying short pulses in the nanosecond regime ensures fast reduction processes and formation of graphene-related nanostructures. The number of observed nanographite layers lies in the range of 3-13 with an average interlayer spacing of 3.4(0.3) angstrom and an average distance between defects of 11.5(6.0) nm meaning that the produced nanographite is in the area of small defect density. Furthermore, no significant influence of process times on the product properties over a period up to 15 min was observed, indicating good process homogeneity.

引用

页数：8

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