Room-temperature graphitization in a solid-phase reaction
Graphitized carbon including graphene has recently become one of the most investigated advanced materials for future device applications, but a prerequisite for broadening its range of applications is to lower its growth temperature. Here we report a great decrease in graphitization temperature usin...
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Royal Society of Chemistry
2019
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Online Access: | http://eprints.utm.my/id/eprint/90893/1/MohdZamriMohdYusop2019_Room-TemperatureGraphitizationinaSolidPhaseReaction.pdf http://eprints.utm.my/id/eprint/90893/ http://dx.doi.org/10.1039/c9ra09038j |
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my.utm.908932021-05-31T13:28:27Z http://eprints.utm.my/id/eprint/90893/ Room-temperature graphitization in a solid-phase reaction Elnobi, Sahar Sharma, Subash Ibrahim Araby, Mona Paudel, Balaram Kalita, Golap Mohd. Yusop, Mohd. Zamri Ayhand, Muhammed Emre Tanemura, Masaki TJ Mechanical engineering and machinery Graphitized carbon including graphene has recently become one of the most investigated advanced materials for future device applications, but a prerequisite for broadening its range of applications is to lower its growth temperature. Here we report a great decrease in graphitization temperature using the well-known catalyst Ni. Amorphous carbon films with Ni nanoparticles (NPs) were deposited, using a simple one-step magnetron sputtering method, onto microgrids and a SiO2/Si substrate for transmission electron microscopy (TEM) and Raman spectroscopy analyses, respectively. The amorphous carbon surroundings and locations between the Ni NPs started to become graphitized during the film deposition even at room temperature (RT) and 50 °C. The graphitization was confirmed by both high-resolution TEM (HR-TEM) and Raman 2D peak analyses. The increase in the relative amount of Ni in the amorphous carbon film led to the partial oxidation of the larger Ni NPs, resulting in less graphitization even at an elevated deposition temperature. Based on the detailed HR-TEM analyses, a decreased oxidation of NPs and enhanced solubility of carbon into Ni NPs were believed to be key for achieving low-temperature graphitization. Royal Society of Chemistry 2019 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/90893/1/MohdZamriMohdYusop2019_Room-TemperatureGraphitizationinaSolidPhaseReaction.pdf Elnobi, Sahar and Sharma, Subash and Ibrahim Araby, Mona and Paudel, Balaram and Kalita, Golap and Mohd. Yusop, Mohd. Zamri and Ayhand, Muhammed Emre and Tanemura, Masaki (2019) Room-temperature graphitization in a solid-phase reaction. RSC Advances, 10 (2). pp. 914-922. ISSN 2046-2069 http://dx.doi.org/10.1039/c9ra09038j |
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TJ Mechanical engineering and machinery Elnobi, Sahar Sharma, Subash Ibrahim Araby, Mona Paudel, Balaram Kalita, Golap Mohd. Yusop, Mohd. Zamri Ayhand, Muhammed Emre Tanemura, Masaki Room-temperature graphitization in a solid-phase reaction |
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Graphitized carbon including graphene has recently become one of the most investigated advanced materials for future device applications, but a prerequisite for broadening its range of applications is to lower its growth temperature. Here we report a great decrease in graphitization temperature using the well-known catalyst Ni. Amorphous carbon films with Ni nanoparticles (NPs) were deposited, using a simple one-step magnetron sputtering method, onto microgrids and a SiO2/Si substrate for transmission electron microscopy (TEM) and Raman spectroscopy analyses, respectively. The amorphous carbon surroundings and locations between the Ni NPs started to become graphitized during the film deposition even at room temperature (RT) and 50 °C. The graphitization was confirmed by both high-resolution TEM (HR-TEM) and Raman 2D peak analyses. The increase in the relative amount of Ni in the amorphous carbon film led to the partial oxidation of the larger Ni NPs, resulting in less graphitization even at an elevated deposition temperature. Based on the detailed HR-TEM analyses, a decreased oxidation of NPs and enhanced solubility of carbon into Ni NPs were believed to be key for achieving low-temperature graphitization. |
format |
Article |
author |
Elnobi, Sahar Sharma, Subash Ibrahim Araby, Mona Paudel, Balaram Kalita, Golap Mohd. Yusop, Mohd. Zamri Ayhand, Muhammed Emre Tanemura, Masaki |
author_facet |
Elnobi, Sahar Sharma, Subash Ibrahim Araby, Mona Paudel, Balaram Kalita, Golap Mohd. Yusop, Mohd. Zamri Ayhand, Muhammed Emre Tanemura, Masaki |
author_sort |
Elnobi, Sahar |
title |
Room-temperature graphitization in a solid-phase reaction |
title_short |
Room-temperature graphitization in a solid-phase reaction |
title_full |
Room-temperature graphitization in a solid-phase reaction |
title_fullStr |
Room-temperature graphitization in a solid-phase reaction |
title_full_unstemmed |
Room-temperature graphitization in a solid-phase reaction |
title_sort |
room-temperature graphitization in a solid-phase reaction |
publisher |
Royal Society of Chemistry |
publishDate |
2019 |
url |
http://eprints.utm.my/id/eprint/90893/1/MohdZamriMohdYusop2019_Room-TemperatureGraphitizationinaSolidPhaseReaction.pdf http://eprints.utm.my/id/eprint/90893/ http://dx.doi.org/10.1039/c9ra09038j |
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1702169616676028416 |
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13.160551 |