具有3个次级晶格结构的钛酸盐晶体[Ni(OH)1．115(H2O)0.885]1.22(Ti1.73O4)·1．65H2O的合成  

Novel Complicated Titanate Consisted of Three Sublattices

作　　者：徐跃华[1] 姜海英[1] 付爽[1] 李吉学[1] 中山则昭[2] 王丹[3] 徐家宁[1] 宋天佑[1] 冯守华[1] 

机构地区：[1]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130012 [2]日本山口大学工学部,日本宇部755-8611 [3]中国科学院过程研究所,北京100080

出　　处：《高等学校化学学报》2009年第3期456-459,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20871053,10674054);国家“八六三”计划(批准号:2006AA03Z410);吉林大学创新基金资助

摘　　要：以K0.81Li0.27Ti1.73O4为前驱物,通过水热方法合成出一种新型多晶格化合物[Ni(OH)1.115(H2O)0.885]1.2.2(Ti1.73O4).1.65H2O.应用XRD,IR,TG-DTA和TEM等测试方法对该化合物进行了表征.结果表明,在该化合物中,TiO2层和Ni(OH)2层沿c方向交替堆积,分别形成3个次级晶格.其中TiO2次级晶格属于正交晶系,其可能的空间群是Pmmm,晶格参数a=0.3875 nm,b=0.2976 nm,c=2.288 nm和α=β=γ=90°.另外2个Ni(OH)2次级晶格具有相同的大小和对称性,晶格参数a=b=0.3140 nm,c=2.288 nm,α=β=90°,γ=120°.TiO2次级晶格和Ni(OH)2次级晶格在ab平面二维方向上不匹配.A novel multisublattice compound, [Ni（OH）1.115 （H2O）0.885] 1.22 （ Ti1.73O4） 1.65 H2O, was hy-drothermally synthesized with K0.81Li0.27Til.7304 as the precursor. This compound was characterized by XRD, IR, TG-DTA and TEM. In this compound, the TiO2 layers and Ni（OH）2 layers alternately stack together along the c direction, and three sublattices were formed. One is TiO2 sublattice, which is orthorhombic with possible space group Pmrrtm, the lattice parameters are a = 0. 3875 nm, b = 0. 2976 nm, c=2.288 nm and α=β=γ=90°. The other two are Ni（OH）2 sublattices which have the same dimensions and symmetry, the lattice parameters are a = b = 0. 3140 nm, c = 2. 288 nm, α=β=90°and γ = 120° TiO2 sublattice and Ni （OH）2 sublattice are incommensurate in two dimensions in the ab plane. This result confirms that it is pos- sible to design and synthesize more complicated misfit layered compounds based on the layered compounds by the soft chemical method.

关 键 词：多晶格晶体 不匹配结构 不匹配层状化合物 钛酸盐 氢氧化镍 

分 类 号：O611.4[理学—无机化学] O611.6[理学—化学]