Fabrication of self-binding noble metal/flexible graphene composite paper

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• 作者：Yang Dai ; Sendan Cai ; Weijing Yang ; Lei Gao ; Weiping Tang ; Jingying Xie ; Jia Zhi ; Xuemei Ju
• 刊名：Carbon
• 出版年：2012
• 出版时间：October, 2012
• 年：2012
• 卷：50
• 期：12
• 页码：4648-4654
• 全文大小：1201 K

文摘

Self-binding noble metal (Pt, Au, and Ag)/graphene composite papers as large as 13 cm in diameter were fabricated using a flow-directed method where in situ reduced graphene served as a ¡°binder¡±. The papers were characterized by X-ray diffraction, scanning and transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. This approach yielded well dispersed metals with various nanostructures both on and between the graphene layers to form papers with good conductivity and flexiblility. The 300 ¡ãC-annealed Ag/graphene papers were evaluated as binder-free anodes for lithium ion batteries, delivering a reversible charge capacity of 689 mAh/g at a current density of 20 mA/g.