Liquid‐Metal‐Assisted Programmed Galvanic Engineering of Core–shell Nanohybrids for Microwave Absorption

Abstract Core–shell nanostructures have received widespread attention because of their potential usage in various technological and scientific fields. However, they still face significant challenges in terms of fabrication of core–shell nanostructure libraries on a controlled, and even programmed scale. This study proposes a general approach to systematically fabricate core–shell nanohybrids using liquid‐metal Ga alloys as reconfigurable templates, and the initiation of a local galvanic replacement reaction is demonstrated utilizing an ultrasonic system. Under ultrasonic agitation, the hydrated gallium oxides generated on the liquid metal droplets, simultaneously delaminated themselves from the interfaces.…

• NN
  National Natural Science Foundation of China

  Awards: 52231007, 11727807, 51725101
• PO
  Program of Shanghai Academic Research Leader

  Award: 19XD1400400