白仁田 沙代子   産学融合特任准教授
金属表面科学アプローチによるアクティブナノ金属とイナクティブ金属の創成
化学エネルギーは反応させて利用すること、一方で、化学エネルギーは長期的に安定貯蔵することが求められています。早く反応させるためには触媒材料が用いられます。触媒とは、例えば自動車の排気ガスを浄化してくれるもので、材料表面と反応する物質との間で吸着反応と脱離反応が繰り返し起こることで反応を早く進行させる物質です。表面増強赤外分光装置を用いると、その材料表面上での単分子レベルの反応をリアルタイムで観測することができます。一方、安定貯蔵には化学物質と反応しない材料が必要です。安定性を確かめるための材料評価実験を行っています。このように、化学エネルギーの有効利用を目指して、エネルギーを変換させる材料と長期安定貯蔵のための材料について研究しています。
   
白仁田 沙代子
最終学歴: 大阪大学大学院工学研究科 博士後期課程マテリアル生産科学専攻 修了
取得学位: 博士(工学)(大阪大学)
前職: 長岡技術科学大学 物質材料工学専攻 助教

Publication List:

査読付論文:53 報 (2017年3月31日現在)
原著論文:48 報

1. Yang Yu, Sayoko Shironita, Takaaki Mizukami, Kunio Nakatsuyama, Kenichi Souma, and Minoru Umeda, “Corrosion-resistant characteristics of nitrided Ni-free stainless steel for bipolar plate of polymer electrolyte fuel cell”, Int. J. Hydrogen Energy, 42 (2017) 6303-6309.

 

2. Helen Lee Yun Sin, Minoru Umeda, Sayoko Shironita, Afidah Abdul Rahim, and Bahruddin Saad, “Quartz crystal microbalance study of adenosine as inhibitor for Fe corrosion in HCl solution”, Electrochemistry, 84 (2016) 959-962.

 

3. Helen Lee Yun Sin, Minoru Umeda, Sayoko Shironita, Afidah Abdul Rahim, and Bahruddin Saad, “Aquilaria malaccensis as a green corrosion inhibitor for mild steel in HCl solution”, Int. J. Electrochem. Sci., 11 (2016) 7562-7575

 

4. Helen Lee Yun Sin, Minoru Umeda, Sayoko Shironita, Afidah Abdul Rahim, and Bahruddin Saad, “Adenosine as corrosion inhibitor for mild steel in hydrochloric acid solution”, Research on Chemical Intermediates, 43 (2017) 1919-1934.

 

5. Yang Yu, Sayoko Shironita, Kunio Nakatsuyama, Kenichi Souma, and Minoru Umeda, “Influence of nitriding surface treatment on corrosion characteristics of Ni-free SUS445 stainless steel”, Electrochemistry, 84 (2016) 709-713.

 

6. Sayoko Shironita, Kazutaka Sato, Kazuma Yoshitake, and Minoru Umeda, “Pt-Ru/C anode performance of polymer electrolyte fuel cell under carbon dioxide atmosphere”, Electrochim. Acta, 206 (2016) 254-258.

 

7. Weiqi Zhang, Sayoko Shironita, and Minoru Umeda, “Electrochemical impedance spectroscopy investigation on the ionomer degradation modeling of the anode using a porous microelectrode”, Int. J. Hydrogen Energy, 41 (2016) 6526-6533.

 

8. Minoru Umeda, Mitsuhiko Katagiri, Sayoko Shironita, and Norio Nagayama, “Anisotropic surface hole-transport property of triphenylamine-derivative single crystal prepared by solution method”, Appl. Surf. Sci, 388 (2016) 109-113.

 

9. Yang Yu, Sayoko Shironita, Kunio Nakatsuyama, Kenichi Souma, and Minoru Umeda, “Surface composition effect of nitriding Ni-free stainless steel as bipolar plate of polymer electrolyte fuel cell”, Appl. Surf. Sci., 388 (2016) 234-238.

 

10. Hayato Itaya, Sayoko Shironita, Akira Nakazawa, Mitsuhiro Inoue, and Minoru Umeda, “Electrochemical quartz crystal microbalance study of high-rate Pt dissolution in H2O2-containing H2SO4 solution with Fe2+ ion”, Int. J. Hydrogen Energy, 41 (2016) 534-542.

 

11. Mitsuhiro Inoue, Kazuhiro Nagai, Sayoko Shironita, Takayuki Abe, and Minoru Umeda, “Post-​annealing effects on reaction selectivity of methanol oxidation at carbon-​based platinum co-​sputtered electrocatalyst”, Electrochemistry, 83(5) (2015) 368-371.

 

12. Weiqi Zhang, Sayoko Shironita, and Minoru Umeda, “Three-phase interphase modeling of anode in membrane electrode assembly using a porous microelectrode”, Int. J. Hydrogen Energy, 40 (2015) 4349-4356.

 

13. 高橋勇太, 白仁田沙代子, 梅田実, “メタノールと酸素共存下におけるPt-Ru-C同時スパッタリング電極の反応選択性”, 燃料電池, Vol. 14 No. 3 (2015) 74-78.

 

14. Hayato Itaya, Sayoko Shironita, Akira Nakazawa, Mitsuhiro Inoue, and Minoru Umeda, “Effects of metal ions on Pt electrode dissolution in H2SO4 solution enhanced by the presence of H2O2”, Journal of Renewable and Sustainable Energy, 6 (2014) 043112-9.

 

15. Weiqi Zhang, Takahiro Maruta, Sayoko Shironita, and Minoru Umeda, “Anode and cathode degradation in a PEFC single cell investigated by electrochemical impedance spectroscopy”, Electrochim. Acta, 131 (2014) 245-249.

 

16. Sayoko Shironita, Weiqi Zhang, Tsukasa Sakai, and Minoru Umeda, “Evaluation of reaction selectivity at various Pt/C electrocatalysts using a porous microelectrode in the presence of methanol and oxygen”, Electrochim. Acta, 128 (2014) 265-270.  

 

17. Minoru Umeda, Sayoko Shironita, Tsukasa Sakai, Masahiro Ide, and Hironosuke Ikeda, “Ex situ microelectrode study of cathode catalyst degraded by long-term endurance test in polymer electrolyte fuel cell”, Electrochim. Acta, 128 (2014) 259-264. 

 

18. Minoru Umeda, Masatoshi Sato, Takahiro Maruta, and Sayoko Shironita, “Is power generation possible by feeding carbon dioxide as reducing agent to polymer electrolyte fuel cell?”, Journal of Applied Physics, 114 (2013) 174908-174908-4.  

 

19. 山下慶倫, 板屋隼人, 白仁田沙代子, 梅田実, “Pt電極を用いた酸性水溶液中におけるCO2還元挙動の電気化学測定”, 燃料電池, Vol. 13 No. 2 (2013) 92-100.

 

20. Weiqi Zhang, Sayoko Shironita, and Minoru Umeda, “Low Pt loading and high hydrogen oxidation reaction performance at Pt/TiO2-SiO2 investigated by a porous microelectrode”, Catal. Lett., 144 (2014) 112-116. 2014.01

 

21. Sayoko Shironita, Tsukasa Sakai, and Minoru Umeda, “Nafion thickness dependence of H2O2 yield during O2 reduction at Nafion/Pt microelectrode studied by scanning electrochemical microscopy”, Electrochim. Acta, 113 (2013) 773-778. 

 

22. Sayoko Shironita, Masafumi Ueda, Yosuke Matsumoto, and Minoru Umeda, “Novel O2-enhanced methanol oxidation at Pt-Ru-C sputtered electrode for direct methanol fuel cell”, J. Power Sources, 243 (2013) 635-640.

 

23. Sayoko Shironita, Ko Karasuda, Kazutaka Sato, and Minoru Umeda, “Methanol generation by CO2 reduction at a Pt-Ru/C electrocatalyst using a membrane electrode assembly”, J. Power Sources, 240 (2013) 404-410.

 

24. Minoru Umeda, Yosuke Matsumoto, Mitsuhiro Inoue, and Sayoko Shironita, “O2-enhanced methanol oxidation reaction at novel Pt-Ru-C co-sputtered electrodes”, Electrochim. Acta, 101 (2013) 142-150.

 

25. Sayoko Shironita, Ko Karasuda, Masatoshi Sato, and Minoru Umeda, “Feasibility investigation of methanol generation by CO2 reduction using Pt/C-based membrane electrode assembly for a reversible fuel cell”, J. Power Sources, 228 (2013) 68-74.

 

26. 佐藤和生, 鴉田昂, 佐藤雅利, 白仁田沙代子, 梅田実, “H2-CO2固体高分子形燃料電池における発電特性:Pt/Cカソード性能”, 燃料電池, Vol. 12 No. 2 (2012) 99-105.

 

27. Minoru Umeda, Masafumi Ueda, and Sayoko Shironita, “Novel O2-enhancing methanol oxidation at Pt-Ru-C sputtered electrode: Direct methanol fuel cell power generation performance”, Energy Procedia, 28 (2012) 102-112.

 

28. Akira Kishi, Mitsuhiro Inoue, Sayoko Shironita, and Minoru Umeda, “Electrochemical degradation of electrodeposited Pt particles on mask scratched substrate using a landmark for ex situ scanning electron microscopy”, Appl. Surf. Sci., 258 (2012) 7497– 7502.

 

29. Minoru Umeda, Akira Kishi, and Sayoko Shironita, “Fabrication of Pt nano-dot-patterned electrode using atomic force microscope-based indentation method”, Electrochim. Acta, 63 (2012) 251-255.

 

30. Akira Kishi, Sayoko Shironita, and Minoru Umeda, “H2O2 detection analysis of oxygen reduction reaction on cathode and anode catalysts for polymer electrolyte fuel cells”, J. Power Sources, 197 (2012) 88-92.

 

31. Tsukasa Sakai, Sayoko Shironita, Mitsuhiro Inoue, and Minoru Umeda, “Current-Potential curves at powder catalyst-packed porous microelectrode in the presence of both methanol and oxygen”, Electrochemistry, 79 (2011) 349-352.

 

32. Sayoko Shironita, Masahiko Goto, Takashi Kamegawa, Kohsuke Mori, and Hiromi Yamashita, “Preparation of highly active platinum nanoparticles on ZSM-5 zeolite including cerium and titanium dioxides as photo-assisted deposition sites”, Catal. Today, 153 (2010) 189-192.

 

33. Sayoko Shironita, Tomoya Takasaki, Takashi Kamegawa, Kohsuke Mori, and Hiromi Yamashita, “Synthesis of nano-sized platinum metal particles on Ti-containing mesoporous silica using microwave-assisted deposition method”, Top. Catal., 53 (2010) 218-223.

 

34. Kohsuke Mori, Takashi Araki, Sayoko Shironita, Joji Sonoda, and Hiromi Yamashita, “Supported Pd and PdAu nanoparticles on Ti-MCM-41 prepared by a photo-assisted deposition method as efficient catalysts for direct synthesis of H2O2 from H2 and O2”, Catal. Lett., 131 (2009) 337-343.

 

35. Kohsuke Mori, Yuki Miura, Sayoko Shironita, and Hiromi Yamashita, “New route for the preparation of Pd and PdAu nanoparticles using photoexcited Ti-containing zeolite as an efficient support material and investigation of their catalytic properties”, Langmuir, 25 (2009) 11180-11187.

 

36. Sayoko Shironita, Tomoya Takasaki, Takashi Kamegawa, Kohsuke Mori, and Hiromi Yamashita, “Application of microwaves to the synthesis of nanosized metal and alloy catalysts on titanium dioxide supports”, J. Phys.; Conference Series, 165 (2009) 012039.

 

37. Kohsuke Mori, Takashi Araki, Tomoya Takasaki, Sayoko Shironita, Takashi Kamegawa, and Hiromi Yamashita, “A new application of photocatalysts: synthesis of nano-sized metal and alloy catalysts by a photo-assisted deposition method”, Photochem. Photobiol. Sci., 8 (2009) 652-656.

 

38. Reda M. Mohamed, Sayoko Shironita, Kohsuke Mori, and Hiromi Yamashita, “Effect of metal deposition on the photocatalytic activity of titania-silica for the removal of 2-propanol diluted in water”, Res. Chem. Intermed, 35 (2009) 305-312.

 

39. Sayoko Shironita, Tomoya Takasaki, Takashi Kamegawa, Kohsuke Mori, and Hiromi Yamashita, “Application of microwave-assisted deposition for the synthesis of noble metal particles on Ti-containing mesoporous silica”, Catal. Lett., 129 (2009) 404-407.

 

40. Sayoko Shironita, Kohsuke Mori, Tetsutaro Ohmichi, Eiji, Taguchi, Hirotaro Mori, and Hiromi Yamashita, “Synthesis of highly dispersed platinum nanoparticles on Ti-containing mesoporous silica using photo-assisted deposition”, J. Nanosci. Nanotechnol., 9 (2009) 557-561.

 

41. Sayoko Shironita, Kohsuke Mori and Hiromi Yamashita, “Synthesis of nano-sized Pt metal particle on Ti-containing mesoporous silica and efficient catalytic application for hydrogenation of nitrobenzene”, Stud. Surf. Sci.Catal., 174 (2008) 1291-1294.

 

42. Hiromi Yamashita, Kohsuke Mori, Sayoko Shironita, and Yu Horiuchi, “Applications of single-site photocatalysts to the design of unique surface functional materials”, Catal. Surv. Asia, 12 (2008) 88-100.

 

43. Sayoko Shironita, Kohsuke Mori, Toshiaki Shimizu, Tetsutaro Ohmichi, Naoki Mimura, and Hiromi Yamashita, “Preparation of nano-sized platinum metal catalyst using photo-assisted deposition method on mesoporous silica including single-site photocatalyst”, Appl. Surf. Sci., 254 (2008) 7604-7607.

 

44. Kohsuke Mori, Sayoko Shironita, Toshiaki Shimizu, Takao Sakata, Hirotaro Mori, Tetsutaro Ohmichi, Hiromi Yamashita, “Design of nano-sized Pt metals synthesized on Ti-containing mesoporous silicas and efficient catalytic application for NO reduction”, Mater. Trans., 49 (2008) 398-401.

 

45. 森浩亮, 白仁田沙代子, 三浦祐生, 清水俊晶, 三村直樹, 島田真, 坂田孝夫, 森博太郎, 大道徹太郎, 山下弘巳, “シングルサイト光触媒を利用するPtおよびPdナノ粒子触媒の新規調製と効率的利用技術の開発”, 日本金属学会誌, 71 (2007) 840-844.

 

46. Kohsuke Mori, Yuki Miura, Sayoko Shironita, Masanori Tomonari, Naoki Mimura, Hiromi Yamashita, “Preparation and catalysis of nano-sized metal (Pd, Pt) catalysts deposition Ti-containing zeolite materials by a photo-assisted deposition (PAD) Method”, Stud. Surf. Sci.Catal., 170 (2007) 1319-1324.

 

47. Hiromi Yamashita, Yuki Miura, Kohsuke Mori, Sayoko Shironita, Yosuke Masui, Naoki Mimura, Tetsutaro Ohmichi, Takao Sakata, Hirotaro Mori, “Catalysis of nanosized Pd metal catalyst deposited on Ti-containing zeolite by a photo-assisted deposition (PAD) Method”, Pure Appl. Chem., 79 (2007) 2095-2100.

 

48. Yoshiteru Mizukoshi, Yoji Makise, Tatsuya Shuto, Jinwei Hu, Aki Tominaga, Sayoko Shironita, Shuji Tanabe, “Immobilization of noble metal nanoparticles on the surface of TiO2 by the sonochemical method: photocatalytic production of hydrogen from an aqueous solution of ethanol”, Ultrason. Sonochem., 14 (2007) 387-392.

 

国際学会論文:5

1. Sayoko Shironita, Yosuke Matsumoto, and Minoru Umeda, “Investigation of reaction selectivity for oxygen reduction in the presence of methanol at Co-C-N electrocatalyst”, Transactions on GIGAKU, 2(1) (2014) 02017/1-6.

 

2. Sayoko Shironita, Masafumi Ueda, and Minoru Umeda, “O2-Enhanced methanol oxidation at Pt-Ru-C ternary sputtered electrode”, ECS Trans., 50 (2013) 1969-1977.

 

3. Yosuke Matsumoto, Sayoko Shironita, and Minoru Umeda, “Oxygen reduction in the presence of methanol at Co-C-N electrocatalyst prepared by reactive sputtering”,

Renewable Energy Research and Applications (ICRERA), 2012 International Conference on, International Journal of Renewable Energy Research (IJRER), in pressed.

 

4. Sayoko Shironita, Satoko Mizoguchi, and Minoru Umeda, “Electrolytic Membrane Formation of fluoroalkyl polymer using UV-radiation-based grafting technique and sulfonation”, IOP Conference Series: Mater. Sci. Eng., 21 (2011) 012010.

 

5. Minoru Umeda, Mitsuhiro Inoue, and Sayoko Shironita, “Direct evaluation of O2-reduction-based H2O2 generation at Pt/C-containing powder microelectrode using scanning electrochemical microscopy”, ESC Trans., 30 (2011) 53-63.

 


連絡先
居室:物質・材料1号棟324室
TEL: +81-(0)258-47-9309
紹介ページへ
TOP