Encapsulated phase change materials stabilized by modified graphene oxide

Polythioether Particles Armored with Modifiable Graphene Oxide Nanosheets

“…As seen in the SEM images of Figure , the surface morphology of the particles prepared using SOS and GO nanosheets are markedly different; SOS polymer particles are ≈200 nm in diameter and have smooth surfaces (Figure A), while GO and allyl‐GO‐allyl polymer particles are larger, ≈2 μm in diameter, and have “wrinkled” surfaces (Figure B,C). Such rough surface features support the inclusion of GO nanosheets on the surface of the polymer particles, similar to previous reports . Raman spectroscopy also verified the presence of GO, as the platelets show distinct G and D bands at ≈1575 and ≈1340 cm −1 , respectively, which are absent in the SOS polymer particles.…”

“…GO‐stabilized miniemulsions have been used to prepare a number of different assemblies; our group recently used the assembly of GO at the oil–water interface in Pickering‐type miniemulsions to selectively and orthogonally functionalize each face of the nanosheet with different polymers to yield so‐called Janus nanosheets . Thickett and Zetterlund prepared hollow GO spheres by polymerizing styrene across the surface of GO‐stabilized miniemulsions, while Zhang et al used polymer‐stabilized GO miniemulsions to fabricate polystyrene shells . Alternatively, Gudarzi and Sharif polymerized the oil phase of GO‐stabilized miniemulsions to prepare armored polymer particles of poly(methyl methacrylate) 5–45 μm in diameter, while Zhao and co‐workers prepared GO‐coated polystyrene particles 0.5–3 μm in diameter using a similar method .…”

Kaolinite stabilized paraffin composite phase change materials for thermal energy storage

“…Nevertheless, these organic PCM still have some disadvantages, including leakage in the molten state and lower thermal conductivity (λ, around 0.2 W·m − 1 ·K −1 ), which restricts their wide application (Arteconi et al, 2012;Li et al, 2013a). Consequently, the incorporation of organic PCM into form-stable composite PCM is the most promising practical method to overcome these problems (Kenisarin and Kenisarina, 2012;Wang et al, 2013;Zhou et al, 2013;Zhang et al, 2014).…”

Hydrated salts/expanded graphite composite with high thermal conductivity as a shape-stabilized phase change material for thermal energy storage

“…However, introducing additives inevitably bring the loss of energy storage density. Therefore, researchers directly incorporated the PCMs into the abundant pore structures of carbon based materials [20][21][22]. Expanded graphite (EG) is a kind of carbon material produced by heating expandable graphite in a furnace at high temperature or treated by microwave irradiation [23].…”