Kilogram-scale synthesis of carbon quantum dots for hydrogen evolution, sensing and bioimaging

Carbon quantum dots enhanced the activity for the hydrogen evolution reaction in ruthenium-based electrocatalysts

“…1b shows the lattice fringe clearly, with a lattice spacing of 0.21 nm, which corresponded to the (100) plane of graphitic carbon. 37,38 The X-ray diffraction pattern (XRD) showed the peak at 22.401 ( Fig. 1c), which was consistent with the TEM results.…”

Near-infrared emissive carbon dots with 33.96% emission in aqueous solution for cellular sensing and light-emitting diodes

“…Hydrophilic groups can increase the water dispersity of the CDs, facilitating cell and biological experiments. The surface carboxyl groups may interact with certain metal ions to cause fluorescence quenching, allowing the detection of specific metal ions [38][39][40][41][42][43]. As the name implies, the reaction solvent used in hydrothermal reactions is water, and the reaction solvent used in the solvothermal treatment is an organic substance, such as ethanol, dichloromethane, or DMF.…”

Two‐Phase Colloidal Synthesis of Amorphous Iron‐Doped Manganese Phosphate Hollow Nanospheres for Efficient Water Oxidation

“…Then, the product was dispersed into 2 mL of cyclohexane and poured into 0.2 mmol Fe(NO 3 ) 3 • 9H 2 O solution that was dissolved in 5 mL OM and 10 mL ODE; thereafter, it reacted at 180 °C for 2 h. After cooling to room temperature, a-Fe-Mn:Pi hollow nanospheres were centrifuged and dried. And, Fe(NO 3 ) 3 O were added to 10 mL of ethanol to frame a homogeneous solution. 3 mmol phosphoric acid was put into 10 mL of deionized water and stirred until it was well mixed.…”