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シアノ基架橋型配位高分子ナノ空間場の特異な金属イオン収着特性

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第２回ミニシンポジウム『生命科学と物質科学の融合による新規エネルギー・物質変換技術の創造をめざして』

Specific reaction field in the sub-nm space of one-dimensional uneven structured C60 polymer film for CO2 activation and immobilization Invited International conference

Jun Onoe

Mini-symposium on Advanced Nanomaterials

Event date： 2020.1

Language：English Presentation type：Oral presentation (invited, special)

Venue：CNRS, Strasboourg Country：France

Immobilization and reuse of CO2 is one of the urgent tasks for sustaining our global environment. We have recently found that CO2 can be easily immobilized by reacting with H2O at room temperature (RT) in the sub-nm space constructed in one-dimensional (1D) metallic uneven structured C60 polymer film [1], even though the reaction cannot take place at RT in gas phase (activation energy Ea: ca. 2 eV). In addition, the reaction did not proceed in the sub-nm space of pristine C60 film. These results suggest that not only the sub-nm space but also the framework of the 1D polymer play a specific role for the reaction occurred at RT. First-principles calculations indicate that CO2 molecule is stuck in between adjacent 1D C60 polymer chains at their concave portions, and then H2O molecule attacks to the CO2 with bending that remarkably reduces the Ea enough for the reaction to proceed at RT.

C60・金属酸化物複合化によるP型熱電特性の発現

河合拓哉、中谷真人、尾上順

第18回日本表面真空学会中部支部学術講演会

化学量論比制御によって駆動するKxC60不揮発メモリの動作速度

鈴木智也，中谷真人，渡邊真太，尾上順

第18回日本表面真空学会中部支部学術講演会

フラーレンとモリブデン酸化物の複合化による P 型熱電特性の発現と制御

河合拓哉、中谷真人、尾上順

日本原子力学会中部支部第51回研究発表会

Fabrication and evaluation of nonvolatile memory worked by controlled of potassium ions in C 60 film

Theoretical investigation of impurity-substituted thermoelectric SiO2 International conference

Y. Noda, T. Nishii and J. Onoe

12th International Conference Processes in Isotopes and Molecules

Specific reaction field in the sub-nm space of one-dimensional uneven structured C60 polymer film for CO2 activation and immobilization International conference

J Onoe, M Nakaya, S Watanabe, and Y Kitagawa

12th International Conference Processes in Isotopes and Molecules

Fabrication of P-type thermoelectric materials by composite of C60 and metal oxides

Effects of the orientational phase transition of ZnPc film on the photoelectric conversion processes for ZnPc/C60 solar cells

Time response of nonvolatile memory worked by controlling the stoichiometric ratio of KxC60

高レベル放射性廃液ガラス固化体の高品質・減容化のための白金族元素高収着能を有するシアノ基架橋型配位高分子材料の開発： (5) フェロシアン化アルミニウムの合成と金属イオン収着性能評価

稲葉優介、針貝美樹、立岡壮太郎、三島理愛、斉藤慧太、竹下健二、渡邊真太、尾上順

日本原子力学会2019年秋の大会

シリコン酸化物の置換型固溶に関する第一原理計算

西井俊明、尾上　順

日本原子力学会2019年秋の大会

高レベル放射性廃液ガラス固化体の高品質・減容化のための白金族元素高収着能を有するシアノ基架橋型配位高分子材料の開発：(6)第一原理計算によるフェロシアン化物への金属イオン収着おける物理因子の解析

邊真太，針貝美樹，稲葉優介，中谷真人，竹下健二，尾上順

日本原子力学会2019年秋の大会

Sorption characteristics of ferrocyanide nanoparticles to metal ions in nitric acid solution for development of vitrification processes of high level radioactive nuclear wastes International conference

J. Onoe, S. Watanabe, M. Harigai, Y. Inaba, and K. Takeshita

THE 7th INTERNATIONAL CONFERENCE ON DV-Xα METHOD

Event date： 2019.9

Language：English Presentation type：Oral presentation (invited, special)

Venue：Semarang, Indonesia Country：Japan

High-level radioactive nuclear liquid wastes (HLLW: radioactive metal ions in 2 M nitric acid solution) are generated in the reprocessing of spent nuclear fuels or in the decommissioning of nuclear reactors. In the process of producing the vitrified objects containing the wastes by using a glass melter, platinum-group metals (PGMs) [especially, ruthenium (Ru), rhodium (Rh), and palladium (Pd)] and molybdenum (Mo) cause serious problems: PGMs tend to be accumulated on the sidewall surface of the melter, whereas Mo compounds, so called yellow phase, are formed in the vitrified object. These issues result in (i) degradation of vitrified objects due to heterogenization and (ii) an increase in both disposal space and processing costs in conjunction with additional vitrified rods obtained by flushing the glass melter.
To solve these issues, we have developed a process for efficient removal of PGMs and Mo from HLLW prior to introducing into the glass melter, using metal hexacyanoferrates (HCF) as a sorbent. It is important to reveal the sorption mechanisms of PGMs and Mo for design of high performance HCF sorbents. In this talk, we will present the results on the sorption characteristics of Prussian blue (PB) nanoparticles, one of the HCFs, to the above metal ions in nitric acid solution, obtained using various spectroscopies and first-principles calculations.

2次元ネットワーク1次元凹凸C60ポリマー薄膜ナノ空間内が示す特異反応場

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第４回ポストグラフェン材料のデバイス開発研究会

Improvement of External Quantum Efficiency of C60/ZnPc Organic Photovoltaic Cells by Polymerization between C60 molecules International conference

Y. Matoba, M. Kato, M. Nakaya, S. Watanabe, and J. Onoe

Compound Semiconductor Week(CSW) 2019

1次元金属凹凸C60ポリマー薄膜が示す特異なナノ空間反応場 Invited

尾上　順

ミニシンポジウム『生命科学と物質科学の融合による新規エネルギー・物質変換技術の創造をめざして』

フェロシアン化アルミニウムナノ粒子の合成と白金族元素・モリブデンに対する収着特性評価

渡邊真太，竹内俊喜，中谷真人，稲葉優介，針貝美樹，竹下健二，尾上　順

ナノ学会第17回大会

P型熱電特性の発現へ向けたMo酸化物とC60分子の複合化

河合拓哉、中谷真人、渡邊真太、尾上　順

ナノ学会第17回大会

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