Low-temperature graphitization by amine-assisted combustion of graphite oxide
Abstract Scalable production of bulk graphene materials, by deoxygenation and partial graphitization of graphite oxide (GO), is considered the most mature pathway towards graphene-fortified products. We reimagined a combustion process in which a mixture of GO (the oxidant) and amino acid (high-energ...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
|
| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-025-00572-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849399914541350912 |
|---|---|
| author | Olalekan Solomon Oluwole Petar Jovanović Shadhon Chandra Mohonta Tuan Kien Nguyen Phillip Aitchison Nemai C. Karmakar Mainak Majumder |
| author_facet | Olalekan Solomon Oluwole Petar Jovanović Shadhon Chandra Mohonta Tuan Kien Nguyen Phillip Aitchison Nemai C. Karmakar Mainak Majumder |
| author_sort | Olalekan Solomon Oluwole |
| collection | DOAJ |
| description | Abstract Scalable production of bulk graphene materials, by deoxygenation and partial graphitization of graphite oxide (GO), is considered the most mature pathway towards graphene-fortified products. We reimagined a combustion process in which a mixture of GO (the oxidant) and amino acid (high-energy fuel and reductant) undergoes solid-state reactions at relatively benign conditions (nominal temperature ~900 °C) to produce combusted reduced-graphite oxide (C-rGO) powders. The product is strewn with ordered and long graphene crystallites ( > 80 nm long), exhibits heavily graphitized (002) reflections in XRD and sharp selected area diffraction patterns, with a high C/O ratio ( > 18), and significant nitrogen doping (2.93 at%). We demonstrated that these inks can be printed into patterns on plastic substrates such as PET and roll-compressed to produce highly conductive thin films. Prototype chipless RFID tags were fabricated with a resonant microwave frequency of 3.986 GHz, capable of wireless reading from a distance of 28 mm. |
| format | Article |
| id | doaj-art-94b35bb00e8e488f8215a4e732be46b3 |
| institution | Kabale University |
| issn | 2397-7132 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj 2D Materials and Applications |
| spelling | doaj-art-94b35bb00e8e488f8215a4e732be46b32025-08-20T03:38:13ZengNature Portfolionpj 2D Materials and Applications2397-71322025-07-019111110.1038/s41699-025-00572-2Low-temperature graphitization by amine-assisted combustion of graphite oxideOlalekan Solomon Oluwole0Petar Jovanović1Shadhon Chandra Mohonta2Tuan Kien Nguyen3Phillip Aitchison4Nemai C. Karmakar5Mainak Majumder6Nanoscale Science and Engineering Laboratory (NSEL), Department of Mechanical and Aerospace Engineering, Monash UniversityNanoscale Science and Engineering Laboratory (NSEL), Department of Mechanical and Aerospace Engineering, Monash UniversityARC Research Hub for Advanced Manufacturing with 2D Materials (AM2D), 20 Research Way, Monash UniversityNanoscale Science and Engineering Laboratory (NSEL), Department of Mechanical and Aerospace Engineering, Monash UniversityIonic Industries Ltd, Mt. WaverleyARC Research Hub for Advanced Manufacturing with 2D Materials (AM2D), 20 Research Way, Monash UniversityNanoscale Science and Engineering Laboratory (NSEL), Department of Mechanical and Aerospace Engineering, Monash UniversityAbstract Scalable production of bulk graphene materials, by deoxygenation and partial graphitization of graphite oxide (GO), is considered the most mature pathway towards graphene-fortified products. We reimagined a combustion process in which a mixture of GO (the oxidant) and amino acid (high-energy fuel and reductant) undergoes solid-state reactions at relatively benign conditions (nominal temperature ~900 °C) to produce combusted reduced-graphite oxide (C-rGO) powders. The product is strewn with ordered and long graphene crystallites ( > 80 nm long), exhibits heavily graphitized (002) reflections in XRD and sharp selected area diffraction patterns, with a high C/O ratio ( > 18), and significant nitrogen doping (2.93 at%). We demonstrated that these inks can be printed into patterns on plastic substrates such as PET and roll-compressed to produce highly conductive thin films. Prototype chipless RFID tags were fabricated with a resonant microwave frequency of 3.986 GHz, capable of wireless reading from a distance of 28 mm.https://doi.org/10.1038/s41699-025-00572-2 |
| spellingShingle | Olalekan Solomon Oluwole Petar Jovanović Shadhon Chandra Mohonta Tuan Kien Nguyen Phillip Aitchison Nemai C. Karmakar Mainak Majumder Low-temperature graphitization by amine-assisted combustion of graphite oxide npj 2D Materials and Applications |
| title | Low-temperature graphitization by amine-assisted combustion of graphite oxide |
| title_full | Low-temperature graphitization by amine-assisted combustion of graphite oxide |
| title_fullStr | Low-temperature graphitization by amine-assisted combustion of graphite oxide |
| title_full_unstemmed | Low-temperature graphitization by amine-assisted combustion of graphite oxide |
| title_short | Low-temperature graphitization by amine-assisted combustion of graphite oxide |
| title_sort | low temperature graphitization by amine assisted combustion of graphite oxide |
| url | https://doi.org/10.1038/s41699-025-00572-2 |
| work_keys_str_mv | AT olalekansolomonoluwole lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT petarjovanovic lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT shadhonchandramohonta lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT tuankiennguyen lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT phillipaitchison lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT nemaickarmakar lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide AT mainakmajumder lowtemperaturegraphitizationbyamineassistedcombustionofgraphiteoxide |