GeO 2 nanoparticles loaded reduced graphene oxide aerogel as a lithium-ion battery anode

Abstract

Germanium dioxide/reduced graphene oxide (GeO2/rGO) composite aerogel is synthesized by using supercritical drying method. rGO and composite aerogel show high specific surface area. In addition, as an anode material for lithium-ion batteries (LIBs), the composite aerogel exhibits a good capacity retention after 500 cycles. The outstanding characteristics of non-aggregated graphene and homogeneously dispersed GeO2 nanoparticles in the rGO/GeO2 aerogel account for the noticeable electrochemical properties. The application of the rGO/GeO2 electrode indicated in this study is estimated to encourage the development of affordable carbon-based materials for LIBs anode applications.