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Title: Plasma-enabled healing of graphene nano-platelets layer

Abstract

Graphene platelet networks (GPNs) were deposited onto silicon substrates by means of anodic arc discharge ignited between two graphite electrodes. Here, substrate temperature and pressure of helium atmosphere were optimized for the production of the carbon nanomaterials. The samples were modified or destroyed with different methods to mimic typical environments responsible of severe surface degradation. The emulated conditions were performed by four surface treatments, namely thermal oxidation, substrate overheating, exposition to glow discharge, and metal coating due to arc plasma. In the next step, the samples were regenerated on the same substrates with identical deposition technique. Damaging and re-growth of GPN samples were systematically characterized by scanning electron microscopy and Raman spectroscopy. Furthermore, the full regeneration of the structural and morphological properties of the samples has proven that this healing method by arc plasma is adequate for restoring the functionality of 2D nanostructures exposed to harsh environments.

Authors:
 [1];  [1];  [2];  [1]
  1. George Washington Univ., Washington, DC (United States)
  2. George Washington Univ., Washington, DC (United States); Tomsk State Univ. of Control Systems and Radioelectronics (Russia)
Publication Date:
Research Org.:
Tech-X Corp., Boulder, CO (United States); George Washington Univ., Washington, DC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); US Air Force Office of Scientific Research (AFOSR)
OSTI Identifier:
1595842
Grant/Contract Number:  
SC0015767
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers of Chemical Science and Engineering
Additional Journal Information:
Journal Volume: 13; Journal Issue: 2; Journal ID: ISSN 2095-0179
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Graphene platelet networks; Anodic arc discharge; Plasma healing; Scanning electron microscopy; Raman spectroscopy

Citation Formats

Fang, Xiuqi, Corbella, Carles, Zolotukhin, Denis B., and Keidar, Michael. Plasma-enabled healing of graphene nano-platelets layer. United States: N. p., 2019. Web. doi:10.1007/s11705-018-1787-7.
Fang, Xiuqi, Corbella, Carles, Zolotukhin, Denis B., & Keidar, Michael. Plasma-enabled healing of graphene nano-platelets layer. United States. doi:10.1007/s11705-018-1787-7.
Fang, Xiuqi, Corbella, Carles, Zolotukhin, Denis B., and Keidar, Michael. Fri . "Plasma-enabled healing of graphene nano-platelets layer". United States. doi:10.1007/s11705-018-1787-7.
@article{osti_1595842,
title = {Plasma-enabled healing of graphene nano-platelets layer},
author = {Fang, Xiuqi and Corbella, Carles and Zolotukhin, Denis B. and Keidar, Michael},
abstractNote = {Graphene platelet networks (GPNs) were deposited onto silicon substrates by means of anodic arc discharge ignited between two graphite electrodes. Here, substrate temperature and pressure of helium atmosphere were optimized for the production of the carbon nanomaterials. The samples were modified or destroyed with different methods to mimic typical environments responsible of severe surface degradation. The emulated conditions were performed by four surface treatments, namely thermal oxidation, substrate overheating, exposition to glow discharge, and metal coating due to arc plasma. In the next step, the samples were regenerated on the same substrates with identical deposition technique. Damaging and re-growth of GPN samples were systematically characterized by scanning electron microscopy and Raman spectroscopy. Furthermore, the full regeneration of the structural and morphological properties of the samples has proven that this healing method by arc plasma is adequate for restoring the functionality of 2D nanostructures exposed to harsh environments.},
doi = {10.1007/s11705-018-1787-7},
journal = {Frontiers of Chemical Science and Engineering},
number = 2,
volume = 13,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
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