Mineral assemblage in the deep interior of the giant planet investigated by the high pressure and temperature phase transition in titanate

通过钛酸盐的高压和高温相变研究巨行星内部深处的矿物组合

• 批准号: 23740389
• 负责人: HAMANE Daisuke
• 金额: $ 2.91万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740389/
• 关键词: チタネイト; ダイアモンドアンビルセル; 放射光 X 線; 透過型電子顕微鏡; スーパーアース; 高圧高温; FeTiO3; 高圧力; 巨大惑星

Mineral assemblage in the deep interior of the giant planet such as Super Earth is the challenging subject for the experimental study because of the significant difference between experimentally producible pressure and real pressure at the interior of the giant planet. One of the plausible ways is an approach from the analogue material, and then titanate is expected to behave as analogue of silicate even at low pressure. Although the long-held expectation was the decomposition of ABO3-type compound into AO + BO2 assemblage at the ultrahigh pressure, present experimental work showed that 2/3FeO + 1/3FeTi3O7 assemblage is the densest and this model may be more stable at deeper interior of the giant planet.

由于超级地球等巨行星内部的实验压力与真实的压力之间存在着显著的差异，因此其内部深部的矿物组合是实验研究的挑战性课题。其中一种可行的方法是从模拟材料的方法，然后钛酸盐预计表现为硅酸盐的模拟物，即使在低压下。虽然长期以来的预期是ABO 3型化合物在超高压下分解为AO + BO 2组合，但目前的实验工作表明，2/3FeO + 1/3FeTi 3 O 7组合才是最稳定的组合，并且该模型在巨行星内部更深处可能更稳定。

项目成果

Continuous Hydrothermal Synthesis of Nickel Ferrite Nanoparticles Using a Central Collision-Type Micromixer : Effects of Temperature, Residence Time, Metal Salt Molality, and NaOH Addition on Conversion, Particle Size, and Crystal Phase

使用中心碰撞型微混合器连续水热合成镍铁氧体纳米颗粒：温度、停留时间、金属盐摩尔浓度和 NaOH 添加对转化率、粒径和晶相的影响

• DOI: 10.1021/ie200036m
• 发表时间: 2011
• 期刊: Industrial and Engineering Chemistry Research
• 影响因子: 4.2
• 作者: Koyo Norinaga;Ryota Sato;and Jun-ichiro Hayashi;陶究
• 通讯作者: 陶究

Synthesis, Structure and Electromagnetic Properties of Manganese Hollandite, KxMn8O16

锰锰矿KxMn8O16的合成、结构及电磁性能

• DOI: 10.1143/jpsj.81.104701
• 发表时间: 2012
• 期刊: J. Phys. Soc. Jpn
• 作者: T. Kuwabara;M. Isobe;H. Gotou;T. Yagi;D. Nishio-Hamane;and Y. Ueda
• 通讯作者: and Y. Ueda

新鉱物 宮久石/Miyahisaite: (Sr,Ca)2Ba3(PO4)3F

新矿物宫久石：(Sr,Ca)2Ba3(PO4)3F

• 发表时间: 2012
• 作者: A. Armid;Ryuji ASAMI;T. Fahmiati;M. A. Sheikh;H. Fujimura;T. Higuchi;E. Taira;R. Shinjo;T. Oomori;浜根大輔 他
• 通讯作者: 浜根大輔 他

Gold nanoparticles stabilized on nanocrystalline magnesium oxide as an active catalyst for reduction of nitroarenes in aqueous medium at room temperature

• DOI: 10.1039/c2gc35917k
• 发表时间: 2012-01-01
• 期刊: GREEN CHEMISTRY
• 影响因子: 9.8
• 作者: Layek, Keya;Kantam, M. Lakshmi;Maheswaran, H.
• 通讯作者: Maheswaran, H.

Spin transition of ferric iron in Al-bearing Mg-perovskite up to 200 GPa and its implication for the lower mantle

• DOI: 10.1016/j.epsl.2011.12.006
• 发表时间: 2012-02-01
• 期刊: EARTH AND PLANETARY SCIENCE LETTERS
• 影响因子: 5.3
• 作者: Fujino, Kiyoshi;Nishio-Hamane, Daisuke;Tsuei, Ku-Ding
• 通讯作者: Tsuei, Ku-Ding