Synthesis and characterization of a new borate Ba₆Al₄B₁₄O₃₃ with building blocks of AlO₄, Al₄O₁₄, BO₃, B₆O₁₄, and B₆O₁₃

详细信息    查看全文

• 作者：Xuean Chen^a ; ^{xueanchen@bjut.edu.cn} ; Jianying Yue^a ; Xinan Chang^a ; Weiqiang Xiao^b
• 关键词：Ba6Al4B14O33 ; Borate ; X-ray diffraction ; Crystal structure ; Band structure
• 刊名：Journal of Solid State Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：245
• 期：Complete
• 页码：174-183
• 全文大小：1390 K
• 卷排序：245

文摘

Ba6Al4B14O33 has a 3D network formed by AlO4 tetrahedra, BO3 triangles, [Al4O14]16−, [B6O14]10−, and [B6O13]8− groups. IR spectrum confirms the presence of BO3 and BO4 groups. UV-VIS diffuse reflectance spectrum shows a band gap of about 3.44 eV. Solid-state fluorescence spectrum shows a broad emission band at about 527 nm. Band structure calculations indicate that it is a direct band-gap insulator.