Fujiwara Keiko

フジワラケイコ | Fujiwara Keiko

Affiliation and department：
Job title：助手

Research field (1)： Earth resource engineering, energy science

Research keywords (1)： Mineral processing

Research theme for competitive and other funds (13)：

2020 - 2024 Construction of crystallographic guidelines for material design of microporous crystals as radioactive element removers
2019 - 2022 High-efficiency adsorption characteristics of high-level radioactive elements in porous crystals with a three-dimensional pore structure
2016 - 2019 Improvement and evaluation of titanosilicates for radioactive waste processing materials - Looking ahead to the future of Fukushima -
2015 - 2018 Mineral crystal chemistry as a function of temperature and pressure: anisotropy of elasticity in the Earth's interior elucidated from atomic displacement behavior
2012 - 2013 Improvement and Evaluation of Micro-porous Titano-silicates for Radioactive waste processing materials

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Papers (41)：

Akihiko Nakatsuka, Naomi Kawata, Keiko Fujiwara. Dehydration behavior of a natural hydrated Ca-chabazite studied by in-situ high-temperature single-crystal X-ray diffraction. Microporous and Mesoporous Materials. 2021. 311. 110648-110648
Keiko FUJIWARA, Naomi KAWATA, Akihiko NAKATSUKA. Preparation and crystal structural properties of Er³⁺-exchanged GTS-type sodium titanosilicate. Journal of Mineralogical and Petrological Sciences. 2020. 115. 1. 59-64
Akihiko Nakatsuka, Akira Yoshiasa, Keiko Fujiwara, Osamu Ohtaka. Variable-temperature single-crystal X-ray diffraction study of SrGeO3 high-pressure perovskite phase. Journal of Mineralogical and Petrological Sciences. 2018. 113. 6. 280-285
Akihiko Nakatsuka, Hiroshi Arima, Osamu Ohtaka, Keiko Fujiwara, Akira Yoshiasa. Single-crystal X-ray diffraction study of SrGeO3 high-pressure perovskite phase at 100 K. Journal of Physics: Conference Series. 2017. 950. 4
Keiko Fujiwara, Kae Shinohara, Akihiko Nakatsuka. Hydrothermal synthesis and Er³⁺ ion exchange of sodium GTS-type titanosilicate. Journal of Physics: Conference Series. 2017. 950. 4

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MISC (18)：

Nakatsuka Akihiko, Sugiyama Kazumasa, Ohkawa Makio, Ohtaka Osamu, Fujiwara Keiko, Yoshiasa Akira. Crystal structure of new high-pressure strontium germanate SrGe₂O₅. Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences. 2018. 2018. 0. 73-73
Nakatsuka Akihiko, Matsutomi Hiroki, Fujiwara Keiko, Nakayama Noriaki, Ohtaka Osamu, Sugiyama Kazumasa. Structure and H position of tetragonal hydrogarnet in the system Ca-Ge-O-H. Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences. 2014. 2014. 0. 95-95
NAKATSUKA Akihiko, NAKAYAMA Noriaki, FUJIWARA Keiko, MIZOTA Tadato. Dehydration behavior and crystal chemistry of chabazite. 2007. 2007. 148-148
Nakayama N., Yonezawa K., Yamamoto N., Fujiwara K., Natatuka A., Ueda Y. 21aPS-101 Structural Phase Transition and Magnetic Ordering of InBaCo_4O_7. Meeting abstracts of the Physical Society of Japan. 2007. 62. 2. 540-540
Nakayama N., Fujiwara K., Ueda Y. 24aPS-37 Magnetic Properties of Cubic Perovskites Ba(Co,Lu)O_<3-δ>. Meeting abstracts of the Physical Society of Japan. 2006. 61. 2. 448-448

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Lectures and oral presentations (57)：

高温単結晶X線構造解析によるCs交換チャバサイトの脱水および陽イオン移動プロセスの結晶学的研究
(第22回MRS-J山口大学支部研究発表会 2022)
Cs交換菱沸石の高温単結晶X線構造解析:脱水挙動の結晶学的研究
(日本鉱物科会2021年年会・総会 2021)
Temperature dependence of Cs<SUP>+</SUP>ion exchange in GTS-type Na titanosilicate and its cation distribution.
(2021)
GTS型NaチタノシリケートのCs<SUP>+</SUP>交換体の作製と陽イオン分布の検討
(日本化学会第100春季年会 2020)
菱沸石の高温単結晶 X 線構造解析による脱水挙動の結晶学的研究
(日本結晶学会令和元年度年会 2019)

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Education (1)：

Work history (1)：

2008/04 - 現在 YAMAGUCHI UNIVERSITY Graduate School of Sciences and Technology for Innovation Research Associate

Association Membership(s) (5)：

日本鉱物科学会 , 日本結晶学会 , 日本MRS , 資源素材学会 , 社団法人日本化学会

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