研究業績/Publication

1. Kodai Takahashi, Tsuyoshi Nagasawa*, Merika Chanthanumataporn, and Katsunori Hanamura, " Visualization of oxide ion incorporation in CO2 electrolysis on LSCM-based cathodes of solid oxide electrolysis cell, Journal of Power Sources Vol. 595, 234073 (2024). (Link)

2. Hyo Min You, Tsuyoshi Nagasawa, Jae Woo Lee, Hyunguk Kwon*, and Kyeounghak Kim*, "Mechanistic Study of Oxygen Reduction Reaction on a Pd/CeO2-ZrO2 Catalyst", Applied Surface Science Vol. 648, 159045 (2024). (Link)

3. Takaaki Shimura*, Tsuyoshi Nagasawa, Naoki Shikazono, and Katsunori Hanamura,  "Three-dimensional numerical simulation of oxygen isotope transport in lanthanum strontium manganese - Yttria-stabilized zirconia cathode of solid oxide fuel cell", International Journal of Hydrogen Energy Vol. 48, No. 50, pp. 19233-19247 (2023). (Link)

4. Tsuyoshi Nagasawa*, Atsushi Kobayashi, Susumu Sato, Hidenori Kosaka, Kyeounghak Kim, Hyo Min You, Katsunori Hanamura, Ami Terada, and Takao Mishima, "Visualization of oxygen storage process in Pd/CeO2-ZrO2 three-way catalyst based on isotope quenching technique", Chemical Engineering Journal Vol. 453, No. 2, 139937 (2023). (Link)

→ プレスリリース (日本語，English) (東工大)，日刊工業新聞 (2022/11/16)，日本経済新聞の取材を受けました (同紙電子版と日経産業新聞 (2022/12/26)に記事が掲載)

5. Athiwat Butmarasri*, Tsuyoshi Nagasawa, and Hidenori Kosaka, "Effects of Diesel Injector Nozzle Hole Deposit on Fuel Injection and Spray Characteristics", International Journal of Automotive Engineering Vol. 13, No. 4, pp. 177-187 (2022). (Link)

6. Tsuyoshi Nagasawa*, Kai Matsumoto, Naoya Minegishi, and Hidenori Kosaka, “Structural Characterization of Ceria-Supported Pt Nanoparticles by Flame-Assisted Spray Pyrolysis Using a Burner Diffusion Flame”, Energy and Fuels Vol. 35, pp. 12380-12391 (2021). (Link)

7. Tsuyoshi Nagasawa*, Takaaki Shimura, Naoki Shikazono, and Katsunori Hanamura, “Distribution of Reaction Sites in SOFC Cathode through Oxygen Isotope Labeling with Three-dimensional Microstructural Analysis”, Journal of The Electrochemical Society Vol. 168, No. 6, 064506 (2021). (Link)

→ プレスリリース (東工大，農工大，東大)，日本経済新聞 (2021/6/25)

8. 鄭 載勳*，佐藤　進，長澤　剛，小酒　英範，“壁面衝突する噴霧火炎と非燃焼燃料蒸発噴霧の局所熱伝達に及ぼす雰囲気条件と燃料噴射条件の影響”，日本機械学会論文集 Vol. 86, No. 892, 20-00274 (2020). (Link)

9. Dittapoom Shinabuth*, Tsuyoshi Nagasawa, Susumu Sato, and Hidenori Kosaka, “Study on Effect of Nozzle Hole Length to Diameter Ratio on Near-Field Diesel Spray Characteristics at High Density Conditions”, International Journal of Automotive Engineering Vol. 11, No. 4, 20204573 (2020). (Link)

10. 長澤　剛*，神戸　聡一，木村　岳，佐藤　進，小酒　英範，“希薄燃焼SIエンジンにおける筒内水噴射方向が燃焼特性に与える影響”，自動車技術会論文集 Vol. 51, No. 5, pp. 747-753 (2020). (Link)

11. 長澤　剛*，木村　岳，神戸　聡一，大倉　優一，佐藤　進，小酒　英範，“SIエンジンにおける空気過剰率および筒内水噴射が壁面熱伝達に与える影響”，自動車技術会論文集 Vol. 51, No. 5, pp. 739-746 (2020). (Link)

12. Tsuyoshi Nagasawa*, Yuichi Okura, Ryota Yamada, Susumu Sato, Hidenori Kosaka*, Takeshi Yokomori, and Norimasa Iida, “Thermal efficiency improvement of super-lean burn spark ignition engine by stratified water insulation on piston top surface”, International Journal of Engine Research Vol. 22(5), 1421-1439 (2021). (Link)

→ プレスリリース (東工大)，日経クロステック (2020/4/24)，日刊工業新聞 (2020/4/29)，科学新聞 (2020/5/1)，featured on Advances in Engineering (2021/12)，日本機械学会賞 (論文)

13. Pop-Paul Ewphun*, Miku Otake, Tsuyoshi Nagasawa, Hidenori Kosaka, and Susumu Sato, “Investigation on Effect of Offset Orifice Nozzle under Multi Pulse Ultrahigh Pressure Injection and PPC Combustion Conditions”, International Journal of Automotive Engineering Vol. 11, No. 1, 20204127 (2020). (Link)

14. Pop-Paul Ewphun*, Miku Otake, Tsuyoshi Nagasawa, Hidenori Kosaka, and Susumu Sato*, “Combustion Characteristics of Offset Orifice Nozzle under Multi Pulse Ultrahigh Pressure Injection and PCCI Combustion Conditions”, SAE International Journal of Advances and Current Practices in Mobility 2(2), 1002-1012, 2019-32-0522 (2020). (Link)

15. Meshack Hawi, Hidenori Kosaka, Susumu Sato, Tsuyoshi Nagasawa, Ahmed Elwardany, and Mahmoud Ahmed*, “Effect of injection pressure and ambient density on spray characteristics of diesel and biodiesel surrogate fuels”, Fuel 254, 115674 (2019). (Link)

16. Merika Chanthanumataporn*, Tsuyoshi Nagasawa, and Katsunori Hanamura, “Direct Visualization of Oxygen Incorporation for Oxygen Reduction on Porous Mixed-Conducting LaSrCoO3 Cathode”, Journal of The Electrochemical Society 166(10), F581-F586 (2019). (Link)

17. Tsuyoshi Nagasawa* and Katsunori Hanamura*, “Investigation of oxide ion flux at cathode/electrolyte interface in solid oxide fuel cell”, Journal of Power Sources Vol. 412, pp.695-700 (2019). (Link)

18. Tsuyoshi Nagasawa* and Katsunori Hanamura*, “Microstructure-scaled active sites imaging of a solid oxide fuel cell composite cathode”, Journal of Power Sources Vol. 367, pp.57-62 (2017). (Link)

19. Tsuyoshi Nagasawa* and Katsunori Hanamura, “Prediction of overpotential and effective thickness of Ni/YSZ anode for solid oxide fuel cell by improved species territory adsorption model”, Journal of Power Sources Vol. 353, pp.115-122 (2017). (Link)

20. Tsuyoshi Nagasawa*, Dongchang Chen, Samson Yuxiu Lai, Meilin Liu*, and Katsunori Hanamura, “In situ Raman spectroscopic analysis of the coking resistance mechanism on SrZr0.95Y0.05O3-x surface for solid oxide fuel cell anodes”, Journal of Power Sources Vol. 324, pp.282-287 (2016). (Link)

21. Masaru Kanie*, Warit Ua-Amnueychai, Merika Chanthanumataporn, Keiji Asada, Tsuyoshi Nagasawa, and Katsunori Hanamura, “Surface reaction controlling hydrogen permeation through lanthanum-doped ceria membrane with asymmetric structure”, Mechanical Engineering Letters Vol. 1, 15-00359 (2015). (Link)

22. Tsuyoshi Nagasawa* and Katsunori Hanamura, “Theoretical analysis of hydrogen oxidation reaction in solid oxide fuel cell anode based on species territory adsorption model”, Journal of Power Sources Vol. 290, pp.168-182 (2015). (Link)

23. Tsuyoshi Nagasawa* and Katsunori Hanamura, “Power generation characteristics of a SOFC with a Ni/YSZ anode incorporating a SrZr0.95Y0.05O3-α proton conductor”, Journal of Thermal Science and Technology Vol. 10, No. 1, 15-00112 (2015). (Link)

1. Tsuyoshi Nagasawa, Soh Ishibashi, and Hidenori Kosaka, "Research on Super-Lean Burn Spark Ignition Engine with In-Cylinder Water Injection using Gasoline Surrogate Fuels", SAE Technical Paper 2023-32-0055 (2023). (Link)

2. Takaaki Shimura, Tsuyoshi Nagasawa, Naoki Shikazono, and Katsunori Hanamura, “Electrochemical Reaction Mechanism of LSM-YSZ Composite Cathode Based on 3D Simulation of Oxygen Diffusion and Oxygen Labeling Experiment”, ECS Transactions Vol. 103, No. 1, pp.1339-1349 (2021). (Link)

3. Yoko Yamakita, Jaeok Bae, Tsuyoshi Nagasawa, and Hidenori Kosaka, “Stereoscopic Micro-PIV Measurement of Near-Wall Velocity Distribution in Strong Tumble Flow under Motored SI Engine Condition”, SAE Technical Paper 2020-01-2019 (2020). (Link)

4. Pop-Paul Ewphun, Tsuyoshi Nagasawa, Hidenori Kosaka, and Susumu Sato, “Investigation on Effect of Offset Orifice Nozzle on Diesel Combustion Characteristics”, SAE Technical Paper 2020-01-2038 (2020). (Link)

5. Susumu Sato, Seiya Abe, Ryo Himeno, Tsuyoshi Nagasawa, Hidenori Kosaka, Kotaro Tanaka, and Takeshi Tange “Real-World Emission Analysis Methods Using Sensor-Based Emission Measurement System”, SAE Technical Paper 2020-01-0381 (2020). (Link)

6. Tsuyoshi Nagasawa, Takaaki Shimura, Naoki Shikazono, and Katsunori Hanamura, “Characterization of Active Sites in Solid Oxide Fuel Cell Composite Cathode through Oxygen Isotope Labeling Combined with Three-Dimensional Microstructural Analysis By Focused Ion Beam – Scanning Electron Microscopy”,  ECS Transactions, Vol. 91, No. 1, pp.1371-1375 (2019). (Link)

7. Pop-Paul Ewphun, Tsuyoshi Nagasawa, Hidenori Kosaka, and Susumu Sato, “Investigation on Premixed Charge Compression Ignition Combustion Control Using Multi Pulse Ultrahigh Pressure Injection”, SAE Technical Paper 2019-01- 1155 (2019). (Link)

8. Tsuyoshi Nagasawa and Katsunori Hanamura, “Particle-scaled Visualization of Active Sites in LSM/ScSZ Composite Cathode of SOFC through Oxygen Isotope Labeling”, ECS Transactions Vol. 78, No. 1, pp. 855-859 (2017). (Link)

9. Hirotatsu Watanabe, Masaru Kanie, Merika Chanthanumataporn, Tsuyoshi Nagasawa, and Katsunori Hanamura, “Experimental and Detailed Kinetic Modeling Study of Carbon Deposition on Ni/YSZ Anode in SOFC”, ECS Transactions Vol. 78, No. 1, pp.1107-1114 (2017). (Link)

10. Tsuyoshi Nagasawa and Katsunori Hanamura, “Overpotential and Interfacial Conductivity of Ni/YSZ Anode Based on Species Territory Adsorption Model in SOFCs”, ECS Transactions Vol. 68, No. 1, pp.1315-1322 (2015). (Link)

11. Tsuyoshi Nagasawa and Katsunori Hanamura, “Reaction Characteristics around Triple Phase Boundary in Anode including Proton Conductor for Solid Oxide Fuel Cell”, ECS Transactions Vol. 64, No. 2, pp.117-134 (2014). (Link)

1. 長澤　剛，“レポート：第34回内燃機関シンポジウム，排気・燃焼生成物・後処理2”，JSAE Engine Review Vol. 14 No. 1, Feb. 2024 (Link).

2. 長澤　剛，小酒　英範，“層状水蒸気遮熱による超希薄燃焼ガソリンエンジンの熱効率向上”，自動車技術 Vol. 77, No. 12, pp. 52-57, Dec. 2023 (Link).

3. 長澤　剛，小酒　英範，“筒内水噴射による超希薄燃焼ガソリンエンジンの熱効率向上技術 -現象解明と最適化に向けた研究-”，JSAE Engine Review Vol. 12, No. 4, Aug. 2022 (Link).

4. 長澤　剛，小酒　英範，”水噴射を巧みに操り超希薄燃焼ガソリンエンジンの熱効率を大幅アップ”，日本機械学会誌 Vol. 125, No. 1245, pp. 40-41, Aug. 2022 (Link).

5. 長澤　剛，志村　敬彬，鹿園　直毅，花村　克悟，”酸素同位体ラベリングによるSOFCの空気極反応場と三次元微細構造の同時観察”，燃料電池 Vol. 21, No. 4, pp. 13-19, 燃料電池開発情報センター, April 2022 (Link).

6. 長澤　剛，志村　敬彬，”固体酸化物形燃料電池の電極反応場と三次元微細構造の同時観察技術”，クリーンエネルギー Vol. 31, No. 1, pp. 9-14, 日本工業出版, Jan. 2022 (Link).

7. 長澤　剛，佐藤　進，小酒　英範，“スーパーリーンバーンと筒内水噴射の融合が示した超高熱効率ガソリンエンジンの可能性”，JSAE Engine Review Vol. 10, No. 4, June 2020 (Link).

8. 長澤　剛，“日本伝熱学会奨励賞を受賞して”，伝熱 Vol. 57, No. 240, pp. 15, July 2018 (Link).