AlN formation from a hydrotalcite-polyacrylonitrile intercalation compound by carbothermal reduction

Carbothermal synthesis of spherical AlN granules: Effects of synthesis parameters and Y2O3 additive

“…Comparatively, the CRN process is a better choice for industry production, since it results in AlN powders with better properties such as high purity, facile sinterability and resistance against humidity [12]. To date, a lot of researchers have devoted themselves to improving the quality of the AlN powders synthesized by the CRN method [13][14][15][16][17][18]. Unfortunately, most of them just aimed at preparing fine or ultrafine AlN powders in order to meet the requirements of sintering AlN ceramics.…”

Thermal Characterization of Poly(Styrene Sulfonate)/Layered Double Hydroxide Nanocomposites

“…Although an LDH prepared in air will incorporate carbonates almost exclusively, a variety of anions can be incorporated into LDH by synthesis under an inert atmosphere. LDH have been prepared with organic anions (Kopka et al 1988;Chibwe and Jones 1989;Meyn et al 1990;Park et al 1990;Carrado et al 1993;Tagaya et al 1993;Dutta and Robins 1994;Kuwahara et al 1994;Raki et al 1995) and polymeric species (Sugahara et al 1988;Messersmith and Stupp 1992;Challier and Slade 1994;Oriakhi et al 1996). With a polymer occupying the 2-dimensional galleries between brucite-like layers, the alternating arrangement of inorganic and organic structures along the stacking direction can be viewed as the nanocomposition of 2 solid phases.…”

“…Studies indicate that poly(vinyl alcohol) can be incorporated into the interlayer space of a Ca-A1-LDH (Messersmith and Stupp 1992) and that polymer incorporation results in both an enhanced thermal stability and change in microstructure (Messersmith and Stupp 1995). A poly(acrylonitrile)/LDH nanocomposite has been used as a precursor for the preparation of aluminum nitride ceramics (Sugahara et al 1988).…”

The effect of UV radiation on cinnamate/layered double hydroxide (LDH) composites

“…1) A large number of LDHs have been synthesized due to the wide variety of combinations of cations and anions possible. Since LDHs are anion-exchangers, various anions such as metal complex ions, 2),3) phosphate ions, 4) dodecyl sulfate ions, 5) various harmful oxyanions 6), 7) have been intercalated between their layers by ion-exchange. Various organic ions and molecules as well as inorganic ions can be intercalated into the layers using ion exchange and reconstruction methods such as alkylsulfate, 8) porphyrin, 9) phthalocyanine, 9) stearic acid, 10) oleic acid, 11)13) amino acids, 14) peptides, 15) DNAs 16) and so on.…”