biostudies-literatureUnknown12(33)Mokoloko LLThe application of N-doped carbon nanosheets, with and without embedded carbon dots, as active materials for the room temperature chemoresistive detection of methanol and/or ethanol is presented. The new carbons were made by converting 0D N-doped carbon dots (NCDs) to 2D nitrogen-doped carbon nanosheets by heat treatment (200-700 °C). The nanosheets exhibited a lateral size of ∼3 μm and a thickness of ∼12 nm at the highest annealing temperature. Both Raman and TEM analyses showed morphological transitions of the dots to the sheets, whilst XPS analysis revealed transformation of the N-bonding states with increasing temperature. PDF analysis confirmed the presence of defective carbon sheets. Room temperature screening of the chemical vapours of two alcohols (methanol and ethanol), revealed tRSC advances21440-21451https://www.ebi.ac.uk/biostudies/studies/S-EPMC9346501biostudies-literatureFrom 0D to 2D: N-doped carbon nanosheets for detection of alcohol-based chemical vapours.PMC9346501Mokoloko LLAntonatos NMoreno BDBarrett DHForbes RPMatsoso JBMazanek VSofer ZCoville NJfalseFrom 0D to 2D: N-doped carbon nanosheets for detection of alcohol-based chemical vapours.The application of N-doped carbon nanosheets, with and without embedded carbon dots, as active materials for the room temperature chemoresistive detection of methanol and/or ethanol is presented. The new carbons were made by converting 0D N-doped carbon dots (NCDs) to 2D nitrogen-doped carbon nanosheets by heat treatment (200-700 °C). The nanosheets exhibited a lateral size of ∼3 μm and a thickness of ∼12 nm at the highest annealing temperature. Both Raman and TEM analyses showed morphological transitions of the dots to the sheets, whilst XPS analysis revealed transformation of the N-bonding states with increasing temperature. PDF analysis confirmed the presence of defective carbon sheets. Room temperature screening of the chemical vapours of two alcohols (methanol and ethanol), revealed t2022-01-01T00:00:00Z2022 Jul2025-05-29T20:00:37.151Z2024-11-06T15:53:27.826ZS-EPMC93465013597508810.1039/d2ra03931a