发明申请
US20080241050A1 SEMICONDUCTING AEROGELS FROM CHALCOGENIDO CLUSTERS WITH BROAD APPLICATIONS 有权
来自具有广泛应用的CHALCOGENIDO群集的半导体航空器

SEMICONDUCTING AEROGELS FROM CHALCOGENIDO CLUSTERS WITH BROAD APPLICATIONS
摘要:
Soluble chalcogenido clusters together with transition metal ions and main group elements are shown to provide gels having interconnected, open frameworks. Following supercritical drying with liquid carbon dioxide, the chalcogels may be converted to aerogels. The aerogels possess high internal surface areas with a broad pore size distribution that is dependent upon the precursors used and the aging conditions applied. Some of the gels are encompassed by formulas such as M4[M′4Qx]n, M4[M′2Qy]n, M4[M′Qx]n, M3[M″Qx]n, or Me2[M′″Qx]n, where M is a divalent, trivalent, or terravalent metal ion; M′, M″, and M′″ are typically Ge, Sn, P, As, Sb, Mo, or W; and Q is typically S, Se, or Te. Methods of preparing the chalcogenido clusters are also provided.
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