Modification of Kaolinite Surfaces through Intercalation with Potassium Acetate, II

Rehydration and Phase Changes of Potassium Acetate-Intercalated Halloysite at 298 K

“…This phase change is unidirectional only. When a molecule reacts with these internal surfaces, the process is known as intercalation (16)(17)(18)(19). Such an insertion of molecules between the layers results in expansion of the layers in the C axis direction.…”

Esfoliação e hidratação da caulinita após intercalação com uréia

“…Processos de intercalação de moléculas orgânicas e inorgânicas nos espaçamentos interlamelares da caulinita são conhecidos há alguns anos [1][2][3][4][5][6][7][8] . Somente recentemente houve um novo interesse nesses tipo de compostos principalmente pela possibilidade de utilização desses materiais para a obtenção de nanocompósitos com potenciais aplicações industriais [9][10][11] .…”

Preparation of stearic acid/halloysite nanotube composite as form-stable PCM for thermal energy storage

“…The FT-IR spectra of HNTs, SA and the form-stable SA/HNT composite are shown in Figure 4. The FT-IR spectra of HNTs exhibits two Al-OH stretching bands at 3699 and 3625 cm À1 (Figure 4(a)) and a single Al-OH bending band at 910 cm À1 [25,26]. The 1094 cm À1 peak is assigned to stretching mode of apical Si-O, while the band at 1033 cm À1 is caused by the stretching vibrations of Si-O-Si.…”