Abstract
AbstractColloidal silica structures are very important for applications such as superhydrophobic, oleophobic, icephobic, and anti‐biofouling coatings, polymer–ceramic or metal–matrix composites, photon management, catalyst support, and drug delivery. In addition to various types of silica structures, a unique structure—silica rods—has been synthesized by employing the emulsion droplets made by adding water and citrate to polyvinylpyrrolidone pentanol solution. While significant progress has been made in modifying rod shape and chemistry, in rod assembly, and in rod applications, however, no review article has discussed the progress in this field. This Focus Review intends to highlight the developments in the synthesis, assembly, and application of these rods, and discuss the remaining challenges for precise control of size and shape, possible solutions, and potential applications.
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