Intergrown SnO2–TiO2@graphene ternary composite as high-performance lithium-ion battery anodes

Design of Lamellar Mo2C Nanosheets Assembled by Mo2C Nanoparticles as an Anode Material toward Excellent Sodium-Ion Capacitors

“…During the first cycle, the irreversible anodic peak at 0.31 V originated from the solid electrolyte interphase (SEI). 34 A couple of peaks located at 0.88/1.02 V were observed in the subsequent cycles due to storage of sodium, which has a similar reaction process of lithium-ions storage, namely, the sodiation/ desodiation reaction 35,36 given by Mo 2 C + xNa + + xe − ↔ Na x Mo 2 C. Figure 4b displays galvanostatic charge/discharge profiles of lamellar Mo 2 C nanosheets as the anode. The sample delivers discharge and charges specific capacities of 455.5 and 301.6 mAh g −1 at a current density of 0.1 A g −1 with a Coulombic efficiency (CE) of 66.1% during the initial process.…”

“…The cyclic voltammetry (CV) of lamellar Mo 2 C nanosheets as the electrode at the initial 3 cycles with a sweep rate of 0.1 mV·s –1 from 0.01 to 3 V were measured to understand the redox characteristics of lamellar Mo 2 C nanosheets as shown in Figure a. During the first cycle, the irreversible anodic peak at 0.31 V originated from the solid electrolyte interphase (SEI) . A couple of peaks located at 0.88/1.02 V were observed in the subsequent cycles due to storage of sodium, which has a similar reaction process of lithium-ions storage, namely, the sodiation/desodiation reaction , given by Mo 2 C + x Na + + x e – ↔ Na x Mo 2 C. Figure b displays galvanostatic charge/discharge profiles of lamellar Mo 2 C nanosheets as the anode.…”

Hydrothermal synthesis of reduced graphene oxide‐anatase titania nanocomposites for dual application in organic solar cells

“…33,34 The strongest interaction between GO and TiO 2 materials has been reported with the hydrothermal method. 35 Changes in the crystalline phase of TiO 2 and partial reduction of GO to obtain RGO are generally observed. In some cases, with the hydrothermal synthesis method, RGO sheets are obtained when chemical reagents (such as glucose, ascorbic acid, etc.)…”

“…In general, the hydrothermal synthesis is considered as a ‘soft solution chemical processing’ technique, which is an easy and cost‐effective way to control the nanoparticle morphology, size, and phase formation 33,34 . The strongest interaction between GO and TiO 2 materials has been reported with the hydrothermal method 35 . Changes in the crystalline phase of TiO 2 and partial reduction of GO to obtain RGO are generally observed.…”

“…The nanocomposite exhibited excellent photocatalytic activity and stability in contrast to bare TiO 2 . For GO reduction, Fan et al 35 found that the hydrothermal approach was more suitable than both the UV‐assisted photocatalytic method and the hydrazine approach.…”