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Preparation of Barium-Containing Silicon Clathrate Compound

1995; Marcel Dekker; Volume: 3; Issue: 1 Linguagem: Inglês

10.1080/153638x9508545729

1532-2343

Shōji Yamanaka, Hiro‐omi Horie, Hideyuki Nakano, Mitsuo Ishikawa,

Zeolite Catalysis and Synthesis

ABSTRACT A new silicon clathrate compound containing Ba was prepared by the thermal degradation of a solid solution (Na2Ba)Si4 at 500°C in vacuum. The compound has the Na8Si46 clathrate type structure, which consists of silicon tetrahedral networks having two types of cages, pentagonal dodecahedra and 14-face polyhedra. The Ba atoms are placed only in the larger cages.