Figure 3From: Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation SEM images of Au NRs/graphene hybrid composites with different weight ratios: 1:1 (A), 2:1 (B), 5:1 (C), 10:1 (D), 20:1 (E), 100:1 (F). Scale bar: 800 nm.Back to article page