Defect crystal structure of new TiO(OH)_2 hydroxide and related lithium salt Li_2TiO_3

Tarakina N.V.; Neder R.B.; Denisova T.A.; Maksimova L.G.; Baklanova Y.V.; Tyutyunnik A.P.; Zubkov V.G.

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Defect crystal structure of new TiO(OH)_2 hydroxide and related lithium salt Li_2TiO_3

机译：新型TiO（OH）_2氢氧化物及相关锂盐Li_2TiO_3的缺陷晶体结构

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Crystal structures of TiO(OH)_2 and Li_2TiO_3 have been studied in detail and refined using X-ray powder diffraction data. Both compounds possess a high concentration of defects in the structure. The crystal structure of the Li_2TiO_3 salt obtained at 700°C reveals stacking faults of LiTi_2 metal layers, which leads to the appearance of short-range order in three possible space groups: C2/c, C2/m, P3_112. The possibility to stabilise this imperfect state increases the mobility of the Li~+ ions in the structure and allows the complete exchange of lithium by hydrogen in acid water solutions with formation of TiO(OH)_2. The crystal structure of TiO(OH)_2 belongs to the layered double hydroxide structure type with the 3R_1 sequence of oxygen layers and can be described as a stacking of charge-neutral metal oxyhydroxide slabs [(OH)_2OTi_2O(OH)_2]. TiO(OH)_2 is the first layered double hydroxide structure formed by a cation with oxidation state +4 only.

机译：研究了TiO（OH）_2和Li_2TiO_3的晶体结构，并利用X射线粉末衍射数据对其进行了精制。两种化合物在结构中都具有高浓度的缺陷。在700°C下获得的Li_2TiO_3盐的晶体结构揭示了LiTi_2金属层的堆垛层错，这导致在三个可能的空间组中出现短程有序：C2 / c，C2 / m，P3_112。稳定这种不完美状态的可能性增加了结构中Li〜+离子的迁移率，并允许在酸性水溶液中氢与锂的完全交换并形成TiO（OH）_2。 TiO（OH）_2的晶体结构属于具有氧层3R_1序列的层状双氢氧化物结构类型，可以描述为电荷中性金属羟基氧化物板[（OH）_2OTi_2O（OH）_2]的堆叠。 TiO（OH）_2是仅由氧化态为+4的阳离子形成的第一层双氢氧化物结构。

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《Dalton transactions: An international journal of inorganic chemistry》 |2010年第35期|共9页
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Tarakina N.V.; Neder R.B.; Denisova T.A.; Maksimova L.G.; Baklanova Y.V.; Tyutyunnik A.P.; Zubkov V.G.;
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1. Defect crystal structure of new TiO(OH)_2 hydroxide and related lithium salt Li_2TiO_3 [J] . Tarakina N.V., Neder R.B., Denisova T.A., Dalton transactions: An international journal of inorganic chemistry . 2010,第35期

机译：新型TiO（OH）_2氢氧化物及相关锂盐Li_2TiO_3的缺陷晶体结构
2. The role of Li_2MO_2 structures (M = metal ion) in the electrochemistry of (x) Limn_(0.5)Ni_(0.5)O_2·(1-x)Li_2TiO_3 electrodes for lithium-ion batteries [J] . Christopher S. Johnson, Jeom-Soo Kim, A. Jeremy Kropf, Electrochemistry communications . 2002,第6期

机译：Li_2MO_2结构（M =金属离子）在（x）Limn_（0.5）Ni_（0.5）O_2·（1-x）Li_2TiO_3锂离子电池电极的电化学中的作用
3. New high Q microwave dielectric ceramics with rock salt structures: (1-x)Li_2TiO_3 + xMgO system (0 < = x < = 0.5) [J] . J.J. Bian, Y.F. Dong Journal of the European Ceramic Society . 2010,第2期

机译：具有岩盐结构的新型高Q微波介电陶瓷：（1-x）Li_2TiO_3 + xMgO体系（0 <= x <= 0.5）
4. Defect crystal structure of TiO(OH)_2 and related lithium salt Li_2TiO_3 [C] . N. V. Tarakina, R. B. Neder, L. G. Maksimova, European powder diffraction conference;EPDIC 12 . 2011

机译：TiO（OH）_2及相关锂盐Li_2TiO_3的缺陷晶体结构
5. Structure and crystallization of multicomponent lithium silicate glasses =Estrutura e cristaliza??o de vidros de silicato de lítio multicomponents [D] . Gaddam, Anuraag. 2017

机译：多组分硅酸锂玻璃的结构和结晶=多组分硅酸锂玻璃的结构和结晶
6. Interfacial Charge Transfer in MoS2/TiO2 Heterostructured Photocatalysts: The Impact of Crystal Facets and Defects [O] . Tingcha Wei, Woon Ming Lau, Xiaoqiang An, 2019

机译：MoS2 / TiO2异质结构光催化剂中的界面电荷转移：晶体刻面和缺陷的影响
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Defect crystal structure of new TiO(OH)_2 hydroxide and related lithium salt Li_2TiO_3

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