A02-纳米材料与新能源 A02-Nanomaterials and New Energy 分会主席:麦立强、张加涛、彭海琳、张桥 A02-01 A Cut-and-paste Approach to 3D Graphene Oxide-based Architectures Jiaxing Huang Northwestern University Properly cut sheets can be converted into complex three-dimensional (3D) structures by three basic operations including folding, bending and pasting to render new functions. Folding and bending have been extensively employed in crumpling, origami and pop-up fabrications for 3D structures. Pasting joins different parts of a material together, and can create new geometries that are fundamentally unattainable by folding and bending. However, it has been much less explored, likely due to limited choice of weldable thin film materials and residue-free glues. Here we show that graphene oxide (GO) paper is one such suitable material. Stacked GO sheets can be readily loosened up and even re-dispersed in water, which upon drying, re-stack to form solid structures. Therefore, water can be utilized to heal local damages, glue separated pieces, and release internal stress in bent GO papers to fix their shapes. Complex and dynamic 3D GO architectures can thus be fabricated by a cut-and-paste approach, which is also applicable to GO based hybrid with carbon nanotubes or clay sheets. A02-02 LDH Married to Carbon Materials to Create Novel Hybrids for Supercapacitors Jieshan Qiu 1. School of Chemical Engineering, State Key Lab of Fine Chemicals, Liaoning Key Lab for Energy Materials & Chemical Engineering, Dalian University of Technology, China 2. College of Chemical Engineering,Beijing University of Chemical Technology, Beijing, China * Email:
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[email protected] For the high performance energy storage and conversion systems, such as pseudocapacitors, metal-air batteries, and electrocatalytic splitting water devices, one key issue is to tune the surface electrochemical reactions in the systems where multi-ions and multi-electrons transfer are usually involved.