A Nanocapsule‐Based Approach Toward Physical Thermolatent Catalysis

Abstract

Performance under pressure is utilized as a key concept for colloidal control of reaction kinetics. Barrier nanocapsules containing a catalyst and a low-boiling-point release agent enable a highly desired, adjustable, and distinct non-Arrhenius behavior for thermoset curing.

Nanoencapsulation of phase change materials for advanced thermal energy storage systems

“…Capsules have found many uses in applications such as in food technology, 73 , 74 dyes, 75 catalysis, 76 , 77 corrosion inhibition and self-healing 78 , 79 and drug delivery. 80 – 84 Their main purpose is to provide protection for the core material and control material and energy exchange between core and external environment.…”

Formation Mechanism of Multipurpose Silica Nanocapsules

“…The shell protects core materials from the external environment while simultaneously boosting performance. Capsules loaded with active ingredients can be used in applications such as drug delivery, , thermal energy storage, , dyes, , corrosion inhibition, and catalysis . Capsules can be tailored to suit any application based on their size and the make-up of core and shell materials.…”

“…Capsules loaded with active ingredients can be used in applications such as drug delivery, 1,2 thermal energy storage, 3,4 dyes, 5,6 corrosion inhibition, 7 and catalysis. 8 Capsules can be tailored to suit any application based on their size and the make-up of core and shell materials. They can be designed for triggered release or to last indefinitely.…”

Highly Stable Energy Capsules with Nano-SiO2 Pickering Shell for Thermal Energy Storage and Release

“… 33 To maximize beneficial PCM properties, nanostructured capsules (diameter <1 μm) are desirable due to their large SA/vol compared with macro- (1+ mm) or microcapsules (1–1000 μm) and increased structural stability. 34 Capsules can be adapted to contain any active ingredient, 35 − 38 and their miniaturization will help to achieve mass-market penetration. 39 Few researchers have reported the fabrication of salt-hydrate-loaded capsules, with long-term stability especially challenging to achieve.…”

“…To maximize beneficial PCM properties, nanostructured capsules (diameter <1 μm) are desirable due to their large SA/vol compared with macro- (1+ mm) or microcapsules (1–1000 μm) and increased structural stability . Capsules can be adapted to contain any active ingredient, − and their miniaturization will help to achieve mass-market penetration . Few researchers have reported the fabrication of salt-hydrate-loaded capsules, with long-term stability especially challenging to achieve. − However, in previous reports, we successfully synthesized salt-hydrate-loaded nanocapsules, confirming the predicted benefits of encapsulation with several interesting observations: (i) encapsulated salt hydrates were thermally and chemically stable over 100+ cycles with minimal latent heat storage loss; (ii) sonochemistry is highly beneficial for emulsion production; (iii) addition of extra water to the salt hydrate core conserves the salt hydration level; (iv) latent heat of the core material was higher than expected, possibly due to nanoconfinement effects which have been reported in the literature. , Research into nanoconfinement effects on PCMs is in its infancy, recently summarized in a review by Aftab et al …”