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In this paper, mechanical stretching force is introduced into the Electrohydrodynamic Direct-Write (EDW) process. The effects of mechanical stretching on the rheology and deposition behaviors of EDW jet were investigated. The stretching affects that stemmed from the EDW motion platform provided an extra force on the charged jet. The larger stretching force applied on the jet played a good role to...
Oxide gas sensor based on electrospun nanofibers were fabricated and studied in this paper. Polyvinyl pyrrolidone (PVP)/Nickel acetate precursor nanofibers were electrospun, which were sintered into Nickel oxide (NiO) nanofibers with diameter in the range of 100 to 400 nm. The morphology and structure of NiO nanofiber were characterized by scanning electron microscopy and X-ray diffraction. The Gas...
Laminar sheath gas is introduced into the Electrohydrodynamic Direct-Write (EDW) to promote the stability of charged jet and deposition precision of printed micro/nano structure. A novel EDW spinneret with sheath gas is designed to fabricate fine 1D micro/nano structure under lower applied voltage. The laminar sheath gas restricts the whipping motion of charged jet as well as decreases the required...
Hollow mesoporous SiO2 (mSiO2) nanostructures with movable nanoparticles (NPs) as cores, so‐called yolk‐shell nanocapsules (NCs), have attracted great research interest. However, a highly efficient, simple and general way to produce yolk‐mSiO2 shell NCs with tunable functional cores and shell compositions is still a great challenge. A facile, general and reproducible strategy has been developed for...
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