Hydrothermal methods 11 Scanning electron microscopy 5 Synthesised 5 Technology: general issues 5 Carbon 3 Density functional theory 3 Field emission microscopes 3 High resolution transmission electron microscopy 3 Hydrothermal method 3 Morphology 3 Nickel compounds 3 Potassium compounds 3 Research & information: general 3 X ray diffraction 3 Amines 2 Carbon Quantum Dots 2 Carbon quantum dots 2 Catalyst activity 2 Color 2 Computation theory 2 Crystallites 2 Dopamine 2 Electrodes 2 Electroluminescence 2 Emission color 2 Ethanol 2 First principles 2 Fluorescence 2 Hydrothermal 2 Nanocrystals 2