Influence of borohydride concentration on the synthesized Au/graphene nanocomposites for direct borohydride fuel cell

Electrochemical Synthesis of Functionalized Graphene/Polyaniline Composite Using Two Electrode Configuration for Supercapacitors

An effective approach for the large-scale fabrication of conducting polyaniline (PANI) using in situ anodic electrochemical polymerization on nickel foam which had been coated in aryl diazonium salt (ADS)-modified graphene (ADS-G). In the present work, ADS-G was used as a high surface-area support material for the electrochemical polymerization of PANI. The electrochemical performances of the ADS-G/PANI composites exhibited better suitability as supercapacitor electrode materials than those of the PANI. The ADS-G/PANI composites achieved a specific capacitance of 528 F g-1, which was higher than that of PANI (266 F g-1) due to excellent electrode-electrolyte interaction and the synergistic effect of electrical conductivity between ADS-G and PANI in the composites. These findings suggest that the ADS-G/PANI composites are a suitable composite for potential supercapacitor applications.

Abnormal change of melting points of gold nanoparticles confined between two-layer graphene nanosheets

A molecular dynamics simulation demonstrated that the melting temperature of gold nanoparticles confined in two-layer graphene nanosheets was indicated to decrease with nanoparticle size and a reasonable explanation is provided.

Tremella-like graphene–Au composites used for amperometric determination of dopamine

Tremella-like graphene–Au composites were synthesized by a one-step hydrothermal method for selective detection of DA.