Large-Scale Synthesis of Flexible Gold/Cross-Linked-PVA Sub-Microcables and Cross-Linked-PVA Tubes/Fibers by Using Templating Approaches Based on Silver/Cross-Linked-PVA Sub-Microcables

摘要

Well-defined silver/cross-linked-poly(vinyl alcohol) (PVA) sub-microcables,which were synthesized from a hydrothermal reaction using AgCl and PVA as precursors,have been used as sacrificial templates to fabricate gold/cross-linked-PVA sub-microcables by etching the silver/cross-linked-PVA sub-microcables with tetrachloroaurate(III).In addition,well-defined cross-linked-PVA sub-micro-tubes/sub-microfibers can also be produced by the removal of the silver cores of such sub-microcables at ambient temperature.The channel diameter and the shell thickness could be tuned by controlling the diameter of the core sub-microfibers and the shell thickness of the precursor sub-microcables.These cross-linked-PVA-based cables,tubes,and fibers have the potential to be used in future applications such as nanodevices.