Potential-induced sonoelectrochemical graphene nanosheets with vacancies as hydrogen peroxide reduction catalysts and sensors

Facile Synthesis of Low-Cost Copper-Silver and Cobalt-Silver Alloy Nanoparticles on Reduced Graphene Oxide as Efficient Electrocatalysts for Oxygen Reduction Reaction in Alkaline Media

“…However, the downsides of the first and the last are their low chemical, physical, or thermal stability, and the noble metals’ high price and the catalysis of H 2 O 2 decomposition decrease their applicability [ 22 ]. The need for low-cost, stable, biocompatible materials with high catalytic activity for HPRR has resulted in the production of transition metal oxide-based materials [ 8 , 22 , 23 , 24 ] and carbon materials [ 25 , 26 , 27 ].…”

Sonoelectrochemical exfoliation of defective black phosphorus nanosheet with black phosphorus quantum dots as a uric acid sensor

“…The accelerated intercalation of phosphate ions into the interlayers of the BP electrode caused fast exfoliation of the nanosheets and a high yield of dBPN/BPQD. Additionally, we observed a few carbon dots on exfoliated graphene nanosheets by following the same sonoelectrochemical preparation method at 8 V but using a graphitic working electrode [28] . The carbon dots could be resulted from incomplete layer-by-layer exfoliation owing to the significant exfoliation energy (-35 meV/atom) of graphite [29] under the fast exfoliation.…”

Sonoelectrochemical nitrided graphene nanosheets with vacancies and their applications for catalysis and sensing of uric acid oxidation

“…The rapid exfoliation can cause the produce of few-layer graphene with stacking defects [13] , [14] and point vacancy [15] . These defective graphene nanosheets further shows high activities for electrocatalysis of H 2 O 2 reduction reactions [12] , [14] . On the other hand, the electrochemical methods are successfully used to prepare N-doped graphene.…”

“…The advantage for the use of ultrasound in the electrochemistry can significantly improve mass transport of electrolyte ions and activate electrode surface [9] , [10] . Therefore, compare with conventional electrochemical preparation of graphene nanosheets, ultrasonication can accelerate the intercalation of intercalating ions into the layer spacing of graphite electrode and the further exfoliation of graphene in the electrochemical system [11] , [12] . The rapid exfoliation can cause the produce of few-layer graphene with stacking defects [13] , [14] and point vacancy [15] .…”