九州大学 研究者情報
論文一覧
谷ノ内 勇樹(たにのうち ゆうき) データ更新日:2023.12.06

准教授 /  工学研究院 材料工学部門 冶金物理化学


原著論文
1. Tetsuya Uda, Akihiro Kishimoto, Kouji Yasuda, Yu-ki Taninouchi, Submerged Comminution of Lithium-ion Batteries in Water in Inert Atmosphere for Safe Recycling, https://doi.org/10.1039/D2YA00202G, 1, 935-940, 2022.10.
2. 豊國 想太, 大上 悟, 谷ノ内 勇樹, 中野 博昭, Zrイオンを含む非懸濁溶液からパルス電解法により作製したZn系複合電析膜の微細構造と耐食性 (in press), 鉄と鋼, 109, 8, 2023.08.
3. 裵 聖和, 大上 悟, 谷ノ内 勇樹, 孫 仁俊, 中野 博昭, 光沢剤を含むアルカリジンケート浴から電析したZn-Ni合金皮膜の耐食性, 鉄と鋼, 10.2355/tetsutohagane.tetsu-2022-110, 109, 4, 289-300, 2023.04.
4. 村上 亘, 大上 悟, 谷ノ内 勇樹, 赤松 慎也, 中野 博昭, 各種光沢剤を含むジンケート浴からのZn-Ni合金電析挙動とその微細構造, 鉄と鋼, 10.2355/tetsutohagane.tetsu-2022-104, 109, 4, 277-288, 2023.04.
5. 谷ノ内 勇樹, 山口 翼, 岡部 徹, 中野 博昭, フェライト系ステンレス鋼の液体マグネシウム中への溶解挙動, 鉄と鋼, 10.2355/tetsutohagane.TETSU-2022-105, 109, 2, 106-115, 2023.02.
6. Yu-ki Taninouchi, Tsubasa Yamaguchi, Toru H. Okabe, Hiroaki Nakano, Dissolution Behavior of Ferritic Stainless Steel in Liquid Magnesium, ISIJ International, 10.2355/isijinternational.isijint-2022-232, 63, 1, 150-158, 2023.01.
7. Kohei Mori, Yuta Yamakawa, Satoshi Oue, Yu-ki Taninouchi, Hiroaki Nakano, Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode, Materials Transactions, 10.2320/matertrans.mt-m2022087, 64, 1, 242-251, 2023.01.
8. Sung Hwa Bae, Satoshi Oue, Yu-ki Taninouchi, Injoon Son, Hiroaki Nakano, Synergistic Effect of Brightener and Solution Temperature on the Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solution, ISIJ International, 10.2355/isijinternational.isijint-2022-160, 62, 9, 1918-1929, 2022.09.
9. Yu-ki Taninouchi, Tsubasa Yamaguchi, Toru H. Okabe, Hiroaki Nakano, Solubility of Chromium in Liquid Magnesium, Metallurgical and Materials Transactions B, 10.1007/s11663-022-02494-6, 53, 3, 1851-1857, 2022.06, There is a necessity for quantitative information on the solubilities of various elements in Mg and its alloys owing to the growing interest in the precise control of their compositions. In this context, we investigated the quantitative dissolution of metallic Cr in liquid Mg. Pure Mg was melted in a Cr crucible at the temperature range of approximately 1073 K to 1323 K, and the composition of Mg was valuated after quenching. As a result, the relationship between the solubility limit of Cr in liquid Mg and temperature was determined. Furthermore, the thermodynamic parameters for the Cr dissolution were assessed based on the experimental solubility data. The standard Gibbs energy of Cr dissolution in liquid Mg was evaluated. The findings in this study are beneficial for refining the Cr-Mg phase diagram and improving the impurity control of Mg in various industries such as Mg-alloy production and Ti smelting..
10. 森 康平, 山川 裕太, 大上 悟, 谷ノ内 勇樹, 中野 博昭, 低品位銅アノードの不動態化挙動に及ぼす銅電解精製浴中の不純物イオンと添加剤の影響, 日本金属学会誌, 10.2320/jinstmet.j2022001, 86, 6, 97-106, 2022.06.
11. 裵 聖和, 大上 悟, 谷ノ内 勇樹, 孫 仁俊, 中野 博昭, ジンケート浴からのZn-Ni合金電析挙動に及ぼす光沢剤と浴温の相乗作用, 鉄と鋼, 10.2355/tetsutohagane.tetsu-2021-105, 108, 4, 268-281, 2022.04.
12. 裵 聖和, 大上 悟, 谷ノ内 勇樹, 孫 仁俊, 中野 博昭, アルカリジンケート浴からのZn−Ni合金電析挙動に及ぼす浴温の影響, 鉄と鋼, 10.2355/tetsutohagane.tetsu-2021-092, 108, 2, 120-130, 2022.02.
13. Yu-ki Taninouchi, Tetsuya Uda, Rapid Oxidative Dissolution of Metallic Tin in Alkaline Solution Containing Iodate Ions, Journal of Sustainable Metallurgy, 10.1007/s40831-021-00450-3, 7, 4, 1762-1771, 2021.12, Efficient and environmentally friendly tin leaching methods are of significant interest for the separation and recovery of tin from various materials such as tin-plated scraps and waste printed circuit boards. In this study, we investigated the oxidative dissolution of metallic tin in an alkaline solution. A pure tin specimen was leached at 30 °C using different oxidizing agents in a 1 M sodium hydroxide solution. The results demonstrated that iodate ion (IO3−) is one of the most effective oxidizing agents for dissolving tin in alkaline media. A fundamental mechanism for tin dissolution into the leaching solution containing IO3− is proposed based on electrochemical measurements. In addition to the rapid dissolution of tin without much heating, the benefits of using IO3− as an oxidizing agent include its electrochemical regenerability. Thus, alkaline leaching using IO3− as an oxidizing agent is a potentially efficient technique for separating and recovering tin..
14. Yu-ki Taninouchi, Toru H. Okabe, Solubilities of Nickel, Iron, and Chromium in Liquid Magnesium in the Presence of Austenitic Stainless Steel, Metallurgical and Materials Transactions B, 10.1007/s11663-020-02025-1, 52, 2, 611-624, 2021.02.
15. Chenyi Zheng, Takanari Ouchi, Lingxin Kong, Yu-ki Taninouchi, Toru H. Okabe, Electrochemical Deoxidation of Titanium in Molten MgCl2–YCl3, Metallurgical and Materials Transactions B, 10.1007/s11663-019-01602-3, 50, 4, 1652-1661, 2019.08.
16. Chenyi Zheng, Takanari Ouchi, Akihiro Iizuka, Yu-ki Taninouchi, Toru H. Okabe, Deoxidation of Titanium Using Mg as Deoxidant in MgCl2-YCl3 Flux, Metallurgical and Materials Transactions B, 10.1007/s11663-018-1494-2, 50, 2, 622-631, 2019.04.
17. Yu-ki Taninouchi, Katsuhiro Nose, Toru H. Okabe, Dissolution Behavior of Iron and Steel Materials in Liquid Magnesium, Metallurgical and Materials Transactions B, 10.1007/s11663-018-1384-7, 49, 6, 3432-3443, 2018.12.
18. Toru H. Okabe, Yu-ki Taninouchi, Chenyi Zheng, Thermodynamic Analysis of Deoxidation of Titanium Through the Formation of Rare-Earth Oxyfluorides, Metallurgical and Materials Transactions B, 10.1007/s11663-018-1386-5, 49, 6, 3107-3117, 2018.12.
19. Yu-ki Taninouchi, Toru H. Okabe, Recovery of Platinum Group Metals from Spent Catalysts Using Iron Chloride Vapor Treatment, Metallurgical and Materials Transactions B, 10.1007/s11663-018-1269-9, 49, 4, 1781-1793, 2018.08.
20. Toru H. Okabe, Chenyi Zheng, Yu-ki Taninouchi, Thermodynamic Considerations of Direct Oxygen Removal from Titanium by Utilizing the Deoxidation Capability of Rare Earth Metals, Metallurgical and Materials Transactions B, 10.1007/s11663-018-1172-4, 49, 3, 1056-1066, 2018.06.
21. Yu-ki Taninouchi, Toru H. Okabe, Effective Alloying Treatment for Platinum Using Iron Chloride Vapor, MATERIALS TRANSACTIONS, 10.2320/matertrans.m-m2017844, 59, 1, 88-97, 2018.01.
22. Yu-ki Taninouchi, Toru H. Okabe, Enhanced Dissolution of Platinum Group Metals Using Electroless Iron Deposition Pretreatment, Metallurgical and Materials Transactions B, 10.1007/s11663-017-1087-5, 48, 6, 2866-2872, 2017.12.
23. Yu-ki Taninouchi, Tetsuo Watanabe, Toru H. Okabe, Magnetic Concentration of Platinum Group Metals from Catalyst Scraps Using Iron Deposition Pretreatment, Metallurgical and Materials Transactions B, 10.1007/s11663-017-0999-4, 48, 4, 2027-2036, 2017.08.
24. Yu-ki Taninouchi, Tetsuo Watanabe, Toru H. Okabe, Recovery of Platinum Group Metals from Spent Catalysts Using Electroless Nickel Plating and Magnetic Separation, MATERIALS TRANSACTIONS, 10.2320/matertrans.m-m2017801, 58, 3, 410-419, 2017.03.
25. Yu-ki Taninouchi, Yuki Hamanaka, Toru H. Okabe, Electrochemical Deoxidation of Titanium and Its Alloy Using Molten Magnesium Chloride, Metallurgical and Materials Transactions B, 10.1007/s11663-016-0792-9, 47, 6, 3394-3404, 2016.12.
26. Yu-ki Taninouchi, Yuki Hamanaka, Toru H. Okabe, Chlorination-Volatilization Behavior of Titanium Metal Scraps during Recycling Using Reaction-Mediating Molten Salt, MATERIALS TRANSACTIONS, 10.2320/matertrans.m-m2016818, 57, 8, 1309-1318, 2016.08.
27. Toru H. Okabe, Yuki Hamanaka, Yu-ki Taninouchi, Direct oxygen removal technique for recycling titanium using molten MgCl2 salt, Faraday Discussions, 10.1039/c5fd00229j, 190, 109-126, 2016.01,

Deoxidation of Ti, or direct removal of O dissolved in metallic Ti, is known to be extremely difficult when Mg is used as the deoxidizing agent. This difficulty arises because the chemical potential of O2,pO2, under Mg/MgO equilibrium is high (approximately 10−41atm at 1200 K) and is equivalent to that of Ti containing ∼2 mass% O at 1200 K. Therefore, when deoxidizing Ti to the commercial level of high-grade pure Ti (below 0.05 mass% O) using an Mg reductant at 1200 K, the activity of the reaction product MgO (aMgO) must be decreased to below ∼0.025, which is difficult in practice. In this study, the removal of O in Ti in molten MgCl2salt using an electrochemical technique was examined at ∼1173 K with the objective of obtaining Ti containing less than 0.05 mass% O. Ti samples and graphite electrodes immersed in molten MgCl2served as the cathode and anode, respectively. A constant voltage was applied between the electrodes using an external DC source. Molten MgCl2was employed to produce the deoxidizing agent Mg and to facilitate deoxidation of Ti by decreasing the activity of the reaction product MgO. By applying a voltage of approximately 3.1 V between the electrodes, the chemical potential of Mg in the molten MgCl2was increased at the surface of the Ti cathode, and the Ti samples were deoxidized. The resulting O species, mainly formed O2−dissolved in the molten MgCl2, was removed from the molten salt by reacting with the C anode to form CO (or CO2) gas. Ti wires containing 0.12 mass% O were deoxidized to less than 0.02 mass% O. In some cases, the O concentration in the Ti samples was reduced to the level of 0.01 mass%, which cannot be accomplished using the conventional Kroll process. The possible application of this deoxidation technique to practical industrial recycling processes is discussed.

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28. Yu-ki Taninouchi, Yuki Hamanaka, Toru H. Okabe, Reaction-Mediator-Based Chlorination for the Recycling of Titanium Metal Scrap Utilizing Chloride Waste, MATERIALS TRANSACTIONS, 10.2320/matertrans.m-m2014838, 56, 1, 1-9, 2015.01.
29. Yu-ki Taninouchi, Tetsuya Uda, Tetsu Ichitsubo, Yasuhiro Awakura, Eiichiro Matsubara, Effects of oxygen content and heating rate on phase transition behavior in Bi2(V0.95Ti0.05)O5.475−x, Journal of Alloys and Compounds, 10.1016/j.jallcom.2011.02.137, 509, 19, 5833-5838, 2011.05.
30. Yu-ki Taninouchi, Tetsuya Uda, Tetsu Ichitsubo, Yasuhiro Awakura, Eiichiro Matsubara, Phase classification, electrical conductivity, and thermal stability of Bi2(V0.95TM0.05)O5.5+δ (TM: transition metal), Solid State Ionics, 10.1016/j.ssi.2010.06.052, 181, 27-28, 1279-1286, 2010.09.
31. Yu-ki Taninouchi, Tetsuya Uda, Tetsu Ichitsubo, Yasuhiro Awakura, Eiichiro Matsubara, High oxide-ion conductivity of monovalent-metal-doped bismuth vanadate at intermediate temperatures, Solid State Ionics, 10.1016/j.ssi.2010.04.005, 181, 15-16, 719-723, 2010.06.
32. Yu-ki Taninouchi, Tetsuya Uda, Tetsu Ichitsubo, Yasuhiro Awakura, Eiichiro Matsubara, Phase Stability of Bi2(V1−xMEx)O5.5+δ (ME=Li and Ag, x=0.05 and 0.1), MATERIALS TRANSACTIONS, 10.2320/matertrans.m2009348, 51, 3, 561-566, 2010.03.
33. Yu-ki Taninouchi, Naoyuki Hatada, Tetsuya Uda, Yasuhiro Awakura, Phase Relationship of CsH[sub 2]PO[sub 4]–CsPO[sub 3] System and Electrical Properties of CsPO[sub 3], Journal of The Electrochemical Society, 10.1149/1.3086755, 156, 5, B572-B572, 2009.05.
34. Natsumi Kamioka, Tetsu Ichitsubo, Tetsuya Uda, Susumu Imashuku, Yu-ki Taninouchi, Eiichiro Matsubara, Synthesis of Spinel-Type Magnesium Cobalt Oxide and Its Electrical Conductivity, MATERIALS TRANSACTIONS, 10.2320/matertrans.mbw200721, 49, 4, 824-828, 2008.04.
35. Yu-ki Taninouchi, Tetsuya Uda, Yasuhiro Awakura, Dehydration of CsH2PO4 at temperatures higher than 260 °C and the ionic conductivity of liquid product, Solid State Ionics, 10.1016/j.ssi.2007.10.017, 178, 31-32, 1648-1653, 2008.01.
36. Yu-ki Taninouchi, Tetsuya Uda, Yasuhiro Awakura, Ayako Ikeda, Sossina M. Haile, Dehydration behavior of the superprotonic conductor CsH2PO4 at moderate temperatures: 230 to 260 °C, Journal of Materials Chemistry, 10.1039/b704558c, 17, 30, 3182-3182, 2007.06.
37. Makusu Tsutsui, Yu-ki Taninouchi, Shu Kurokawa, Akira Sakai, Electrical breakdown of short multiwalled carbon nanotubes, Journal of Applied Physics, 10.1063/1.2364048, 100, 9, 094302-094302, 2006.11.
38. Makusu Tsutsui, Yu-ki Taninouchi, Shu Kurokawa, Akira Sakai, Bias-Induced Local Heating Effects on Multi-Walled Carbon Nanotube–Au Contacts, Japanese Journal of Applied Physics, 10.1143/jjap.45.341, 45, 1A, 341-345, 2006.01.
39. Makusu Tsutsui, Yu-ki Taninouchi, Shu Kurokawa, Akira Sakai, Effective Temperature of Au Nanocontacts under High Biases, Japanese Journal of Applied Physics, 10.1143/jjap.44.5188, 44, 7A, 5188-5190, 2005.07.

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pure2017年10月2日から、「九州大学研究者情報」を補完するデータベースとして、Elsevier社の「Pure」による研究業績の公開を開始しました。