发明授权
US07727506B2 Semiconducting aerogels from cahacogenido clusters with broad applications
有权
具有广泛应用的来自花岗岩簇的半导体气凝胶
- 专利标题: Semiconducting aerogels from cahacogenido clusters with broad applications
- 专利标题(中): 具有广泛应用的来自花岗岩簇的半导体气凝胶
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申请号: US12041259申请日: 2008-03-03
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公开(公告)号: US07727506B2公开(公告)日: 2010-06-01
- 发明人: Mercouri G. Kanatzidis , Santanu Bag
- 申请人: Mercouri G. Kanatzidis , Santanu Bag
- 申请人地址: US IL Evanston
- 专利权人: Northwestern University
- 当前专利权人: Northwestern University
- 当前专利权人地址: US IL Evanston
- 代理机构: Reinhart Boerner Van Deuren, s.c.
- 主分类号: C01B17/00
- IPC分类号: C01B17/00 ; C01B17/62 ; C01B19/00
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 tetravalent 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.