Zinc oxide nanowire

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Green and efficient synthesis of novel bispyrazoles through a tandem Knoevenagel and Michael type reaction using nanowire zinc oxide as a powerful and recyclable catalyst

Zinc oxide nanowires (ZnO NWs) were prepared and characterized by scanning electron microscopy, powder X-ray diffraction, and transmission electron microscopy analyses. ZnO NWs were then employed as heterogeneous and recyclable catalyst for green synthesis of some new and known bispyrazole derivatives through a tandem Knoevenagel and Michael type addition reaction of aromatic aldehyde and pyrazolone. The synthetic method is operationally simple and affords product with high yields in short reaction times.

9p langthannam 29-12-2021 7 1 Download

Lee et al. Nanoscale Research Letters 2011, 6:352

Lee et al. Nanoscale Research Letters 2011, 6:352 http://www.nanoscalereslett.com/content/6/1/352 NANO EXPRESS Open Access Structure-dependent mechanical properties of ultrathin zinc oxide nanowires Wen-Jay Lee1, Jee-Gong Chang1, Shin-Pon Ju2*, Meng-Hsiung Weng2 and Chia-Hung Lee2 Abstract Mechanical properties of ultrathin zinc oxide (ZnO) nanowires of about 0.7-1.1 nm width and in the unbuckled wurtzite (WZ) phase have been carried out by molecular dynamics simulation. As the width of the nanowire decreases, Young’s modulus, stress-strain behavior, and yielding stress all increase.

8p dauphong13 09-02-2012 52 6 Download