Ortho-Para Conversion of Hydrogen Molecules Physisorbed in nano-porous surfaces

• Project/Area Number: 20246011
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: FUKUTANI Katsuyuki 東京大学, 生産技術研究所, 教授 (10228900)
• Co-Investigator(Kenkyū-buntansha): KASAI Hideak 大阪大学, 工学(系)研究科(研究院), 教授 (00177354)
• Co-Investigator(Renkei-kenkyūsha): WILDE Markus 東京大学, 生産技術研究所, 准教授 (10301136) ; OGUR Shohe 東京大学, 生産技術研究所, 助教 (10396905)
• Project Period (FY): 2008 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥49,660,000 (Direct Cost: ¥38,200,000、Indirect Cost: ¥11,460,000); Fiscal Year 2011: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000); Fiscal Year 2010: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000); Fiscal Year 2009: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000); Fiscal Year 2008: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
• Keywords: 表面 / 水素 / 核スピン / 宇宙反応 / ナノ構造 / 氷 / ナノチューブ / 宇宙化学反応 / 共鳴イオン化 / 赤外吸収分光

Research Abstract

In this research project, we have investigated the adsorption and ortho-para conversion of hydrogen molecules physisorbed in nano-porous surfaces. The adsorption energy was found to be enhanced as compared to those on flat surfaces. On an amorphous ice surface, the ortho-para conversion was found to take place with a time constant of 400s. To explain this unusual spin conversion, we have proposed an electric-field-induce spin conversion model.

Research Products

• [Journal Article] I Effects of Hindered Rotation on H2Nuclear Spin Conversion on Ag(111) (2013)
  • Author(s): Yuji KUNISADA and Hideaki KASA
  • Journal Title: Jpn. J. Appl. Phys Volume: 82 Pages: 23601-23601
  • URL: http://dx.doi.org/10.7566/JPSJ.82.023601
  • Peer Reviewed
• [Journal Article] First principles study of ortho-para H_2 conversion on the O_2(0.25 ML)/Ag(111) system (2012)
  • Author(s): Yuji Kunisada, Hiroshi Nakanishi, Wilson Agerico Dino, Hideaki Kasai
  • Journal Title: Current Applied Physics Volume: 12 Pages: 115-115
  • DOI: 10.1016/j.cap.2012.04.017
  • Peer Reviewed
• [Journal Article] Hydrogen Redistribution and Performance Improvement of Silicon Avalanche Photodiode by Low-Temperature Annealing (2012)
  • Author(s): T. Kawauchi
  • Journal Title: IEEE Electron Device Letters Volume: 33 Issue: 8 Pages: 1162-1162
  • DOI: 10.1109/led.2012.2200451
  • Peer Reviewed
• [Journal Article] Ag(111)表面上の水素分子のオルソ・パラ転換におけるファン・デル・ワールス力の影響 (2012)
  • Author(s): 國貞雄治
  • Journal Title: Journal of the Vacuum Society of Japan Volume: 55 Pages: 115-115
  • Peer Reviewed
• [Journal Article] Electric field-induced nuclear spin flips mediated by enhanced sp-oirnbit couplings (2011)
  • Author(s): T. Sugimoto,K. Fukutani
  • Journal Title: Nature Phys Volume: 7 Issue: 4 Pages: 307-310
  • DOI: 10.1038/nphys1883
  • Peer Reviewed
• [Journal Article] Laser-induced fluorescence of hydrogen via the E,FΣ→ BΣtransition: otational-state-dependent collisional quenching (2011)
  • Author(s): K. Niki, M. Fujiwara, Y. Motoshima, T.Kawauchi, K. Fukutani
  • Journal Title: Chem.Phys. Lett. Volume: 504 Pages: 136-136
  • Peer Reviewed
• [Journal Article] Design of a Hexapole Magnet for a Spin-Polarized Atomic Hydrogen Source (2011)
  • Author(s): S. Ogura, K. Takeyasu. K. Fukutani
  • Journal Title: J. Vac. Soc. Jpn. Volume: 54 Pages: 192-192
  • NAID: 130005038037
  • URL: https://www.jstage.jst.go.jp/article/jvsj2/54/3/54_3_192/_article/-char/ja
  • Peer Reviewed
• [Journal Article] Low-temperature surface phase and phase transition of physisorbed oxygen on the Ag(111) surface (2011)
  • Author(s): Y. Kazama, T. Sugimoto, M. Matsumoto,T. Okano, K. Fukutani
  • Journal Title: Phys. Rev. B Volume: 84 Pages: 64128-64128
  • Peer Reviewed
• [Journal Article] Laser-induced fluorescence of hydrogen via the E,F1Σg+ → B1Σu+ transition: rotational-state-dependent collisional quenching (2011)
  • Author(s): K. Niki
  • Journal Title: Chem. Phys. Lett. Volume: 504 Issue: 4-6 Pages: 136-141
  • DOI: 10.1016/j.cplett.2011.02.008
  • Peer Reviewed
• [Journal Article] Molecular Adsorption and Desorption on the Single-Walled Carbon Nanotubes (2011)
  • Author(s): S. Iwata
  • Journal Title: J. Surf. Sci. Jpn. Volume: 32 Pages: 349-354
  • Peer Reviewed
• [Journal Article] The reflection operation and the §! term of linear molecules (2011)
  • Author(s): K. Yamakawa
  • Journal Title: Mol. Sci. Volume: 5
  • Peer Reviewed
• [Journal Article] Nitrogen physisorption and site blocking on single-walled carbon nanotubes (2011)
  • Author(s): S.-K. Lee
  • Journal Title: Surf. Sci. Volume: 606 Issue: 3-4 Pages: 293-293
  • DOI: 10.1016/j.susc.2011.10.009
  • Peer Reviewed
• [Journal Article] Ortho-para conversion of hydrogen on Cr2O3 surfaces (2010)
  • Author(s): M. Fujiwara, K. Niki, T. Okano, K.Fukutani
  • Journal Title: J. Phys Conf. Ser. Volume: 200 Pages: 22038-22038
  • URL: http://iopscience.iop.org/1742-6596/200/2/022038
  • Peer Reviewed
• [Journal Article] Adsorption properties of BF4- anions on graphene (2010)
  • Author(s): Y.Kunisada, H.Kishi, F.Dimas, M.-Y.David, H.Nakanishi, H.Kasai, T.Asari, S.Hayashi
  • Journal Title: Jpn.J.Appl.Phys. 49
  • Peer Reviewed
• [Journal Article] Ortho-para conversion of hydrogen on Cr2O3 surfaces (2010)
  • Author(s): M.Fujiwara, K.Niki, T.Okano, K.Fukutani
  • Journal Title: J.Phys.Conf.Ser.200(2010)022038 Volume: 200 Pages: 22038-22038
  • Peer Reviewed
• [Journal Article] Interactions of Hydrogen with Solid Surfaces (2010)
  • Author(s): Nobuki Ozawa, Mamoru Sakaue, Hideaki Kasai
  • Journal Title: Journal of Vacuum Society of Japan Volume: 49 Pages: 592-601
  • NAID: 10027498545
  • Peer Reviewed
• [Journal Article] A First Principles Study on Dissociation and Adsorption Processes of H2on Pd3Ag (111) Surface (2010)
  • Author(s): Hermawan Kresno Dipojono, Allan Abraham B.Padama, Nobuki Ozawa, Hiroshi Nakanishi, Hideaki Kasai
  • Journal Title: Japanese Journal of Applied Physics Volume: 49 Pages: 1157021-4
  • Peer Reviewed
• [Journal Article] Adsorption properties of BF4-anions on graphene (2010)
  • Author(s): Yuji Kunisada, Hirofumi Kishi, Fajarisandi Dimas, Melanie Yadao David, Hiroshi Nakanishi, Hideaki
  • Journal Title: Japanese Journal of Applied Physics, Vol.49, pp.02BB04 (2010) Volume: 49
  • Peer Reviewed
• [Journal Article] NitrogenProblem of Gas Dose withMicro-Capillary Array (2009)
  • Author(s): S.-K. Lee, S. IwatSa., Ogura, Y. Sato, K. Tohji, K. Fukutani
  • Journal Title: J. Vac. Soc. Jpn. Volume: 52 Pages: 141-141
  • URL: http://dx.doi.org/10.1016/j.susc.2012.10.009
  • Peer Reviewed
• [Journal Article] Effects of coadsorbed O2 on hydrogen ortho-para conversion on Ag surfaces (2009)
  • Author(s): K. Niki, S. Ogura, M. Matsumoto, T.Okano, K. Fukutani
  • Journal Title: Phys. Rev.B Volume: 79 Pages: 85408-85408
  • Peer Reviewed
• [Journal Article] Problem of Gas Dose with Micro-Capillary Array (2009)
  • Author(s): T. Sugimoto, T. Okano, K. Fukutani
  • Journal Title: J. Vac. Soc.Jpn. Volume: 52 Pages: 141-141
  • NAID: 10024897857
  • URL: https://www.jstage.jst.go.jp/article/jvsj2/52/3/52_3_141/_article/-char/ja/
  • Peer Reviewed
• [Journal Article] Effects of coadsorbed 02 on hydrogen ortho-para conversion on Ag surfaces (2009)
  • Author(s): K.Niki, S.Ogura, M.Matsumoto, T.Okano, K.Fukutani
  • Journal Title: Phys.Rev.B 79 Pages: 85408-85408
  • Peer Reviewed
• [Journal Article] Problem of Gas Dose with Micro-Capillary Array (2009)
  • Author(s): T.Sugimoto, T.Okano, K.Fukutani
  • Journal Title: J.Vac.Soc.Jpn. 52
  • NAID: 10024897857
  • Peer Reviewed
• [Journal Article] Electron-stimulated Defect Formation in Single-walled Carbon Nanotubes Studied by Hydrogen Thermal Desorption Spectroscopy (2009)
  • Author(s): S.Arima, S.-K.Lee, Y.Mera, S.Ogura, K.Fukutani, Y.Sato, K.Tohji, K.Maeda
  • Journal Title: Appl.Surf.Sci. 256 Pages: 1196-1196
  • Peer Reviewed
• [Journal Article] Oxygen Reduction on Pt(111) Cathode of Fuel Cells (2009)
  • Author(s): D.Son, H.Nakanishi, M.David, H.Kasai
  • Journal Title: J.Phys.Soc.Jpn. 78 Pages: 114601-114601
  • NAID: 130005437169
  • Peer Reviewed
• [Journal Article] Effects of coadsorbed O$_2$ on hydrogen ortho-para conversion on Ag surfaces (2009)
  • Author(s): K.Niki, S.Ogura, M.Matsumoto, T.Okano, K.Fukutani
  • Journal Title: Physical Review B Volume: 79 Pages: 85408-85408
  • Peer Reviewed
• [Journal Article] Problem of Gas Dose with Micro-Capillary Array (2009)
  • Author(s): T.Sugimoto, T.Okano, K.Fukutani
  • Journal Title: J.Vac.Soc.Jpn. Volume: 52 Pages: 141-141
  • NAID: 10024897857
  • Peer Reviewed
• [Journal Article] Electron-stimulated Defect Formation in Single-walled Carbon Nanotubes Studied by Hydrogen Thermal Desorption Spectroscopy (2009)
  • Author(s): S.Arima, S.-K.Lee, Y.Mera, S.Ogura, K.Fukutani, Y.Sato, K.Tohji, K.Maeda
  • Journal Title: Appl.Surf.Sci. Volume: 256 Pages: 1196-1196
  • Peer Reviewed
• [Journal Article] Oxygen Reduction on Pt(111) Cathode of Fuel Cells (2009)
  • Author(s): Do Ngoc Son, Hiroshi Nakanishi, Melanie Yadao David, Hideaki Kasai
  • Journal Title: Journal of the Physical Society of Japan, Vol.78, pp.114601 (2009) Volume: 78 Pages: 114601-114601
  • NAID: 130005437169
  • Peer Reviewed
• [Journal Article] echanism of the ortho-para conversion of hydrogen on Ag surfaces (2008)
  • Author(s): K. Niki, T. Kawauchi, M. MatsumKo.to, Fukutani, T. OkanoM
  • Journal Title: Phys. Rev.B Volume: 77 Issue: 20 Pages: 201404-201404
  • DOI: 10.1103/physrevb.77.201404
  • Peer Reviewed
• [Journal Article] Mechanism of the ortho-para conversion of hydrogen on Ag surfaces (2008)
  • Author(s): K.Niki, T.Kawauchi, M.Matsumoto, K.Fukutani, T.Okano
  • Journal Title: Phys.Rev.B 77 Pages: 201403-201403
  • Peer Reviewed
• [Journal Article] Penetration mechanism of surface adsorbed hydrogen atoms into bulk metals : Experiment and model (2008)
  • Author(s): M.Wilde, K.Fukutani
  • Journal Title: Phys.Rev.B 78 Pages: 115411-115411
  • Peer Reviewed
• [Journal Article] Influence of carbon deposition on the hydrogen distribution in Pd nanoparticles and their reactivity in olefin hydrogenation (2008)
  • Author(s): M.Wilde, K.Fukutani, W.Ludwig, B.Brandt, J.-H.Fischer, S.Schauermann, H.-J.Freund
  • Journal Title: Ang.Chem.Int.Ed. 47 Pages: 1-7
  • Peer Reviewed
• [Presentation] Ag(111)表面における物理吸着水素分子の吸着・脱離特性 (2012)
  • Author(s): 杉本敏樹
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] 極低温NaCl蒸着膜表面上H2,O2,CO2の誘導赤外吸収分光 (2012)
  • Author(s): 山川紘一郎
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] Rotational state dependence in spontaneous relaxation and collisional relaxation of D2, HD E1Σg+ state (2012)
  • Author(s): 王青陽
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] Effects of molecular rotation on desorption kinetics of physisorbed ortho-H2 and para-H2 on Ag(111) (2012)
  • Author(s): T. Sugimoto
  • Organizer: International Symposium on Surface Science
  • Place of Presentation: Tokyo
• [Presentation] Effects of molecular rotation on desorption kinetics of physisordbeortho-H2 and para-H2 on Ag11 (2011)
  • Author(s): T. Sugimoto, K. Fukutani
  • Organizer: 1International Symposium on Surface Scienc6
  • Place of Presentation: Toewer Hall Funabori, Tokyo, Japan
  • Year and Date: 2011-12-13
• [Presentation] Spectroscopic and microscopic studies of hydrogen dynamics at surfaces (2011)
  • Author(s): K. Fukutani
  • Organizer: Japanese-Croatian workshop on materials Science
  • Place of Presentation: Institute of Physics, Zagreb, Croatia
  • Year and Date: 2011-10-07
• [Presentation] A study on the ad/absorption of hydrogen on Pd(110) (2011)
  • Author(s): S. Ohno, M. Wilde, K. Fukutani
  • Organizer: European Conference on Surface Science 28
  • Place of Presentation: Wroclaw, Poland
  • Year and Date: 2011-08-30
• [Presentation] フェルミ接触相互作用による、水素分子の電子励起a-B状態間のオルト-パラ状態混合 (2011)
  • Author(s): 杉本敏樹
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
• [Presentation] 表面・サブサーフェイスにおけるプロトンダイナミクス (2011)
  • Author(s): 福谷克之
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Invited
• [Presentation] TiO2ナノチューブ表面におけるCO2及びH2の赤外吸収分光 (2011)
  • Author(s): 山川紘一郎
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
• [Presentation] アモルファス氷表面におけるオルト水素・パラ水素分子の物理吸着状態密度 (2011)
  • Author(s): 杉本敏樹
  • Organizer: 真空に関する連合講演会
  • Place of Presentation: 学習院大学
• [Presentation] 表面・界面・固体中のプロトン伝導とその量子ダイナミクス計算 (2011)
  • Author(s): 笠井秀明
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学(新潟)(招待講演)
• [Presentation] 銀表面上のステップ構造近傍での水素分子の吸着状態 (2011)
  • Author(s): 國貞雄治, 中西寛, Wilson A.Dino, 笠井秀明
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学(新潟)
• [Presentation] 燃料電池の課題と展望 (2011)
  • Author(s): 笠井秀明, Wilson Agerico Dino
  • Organizer: 2011年春季第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(神奈川)(招待講演)
• [Presentation] Adsorption site and orientation of gas molecule on/in Single-Walled Carbon Nanotubes as studied by cryo-TDS and FT-IR (2010)
  • Author(s): S. Iwata, K. Fukutani, Y. Sato and K.Tohji
  • Organizer: The 6th International Workshop on Nano-scale Spectroscopy and Nanotechnology
  • Place of Presentation: Kobe,Japan
  • Year and Date: 2010-10-26
• [Presentation] How can hydrogen ortho-para conversion occur on amorphous ice surfaces? (2010)
  • Author(s): T. Sugimoto, K. Fukutani
  • Organizer: Eouropian conference of surface science 27
  • Place of Presentation: Groningen, The Netherlands
  • Year and Date: 2010-08-30
• [Presentation] 金属表面に吸着した水素分子の核スピン転換機構 (2010)
  • Author(s): 國貞雄治, W.A. Dino, 中西寛, 笠井秀明
  • Organizer: 日本物理学会第65回年次大会
  • Year and Date: 2010-03-20
• [Presentation] 金属表面に吸着した水素分子の核スピン転換機構 (2010)
  • Author(s): 國貞雄治, Wilson Agerico Dino, 中西寛, 笠井秀明
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学
• [Presentation] DFT study on the adsorption and dissociation of hydrogen peroxide on Fe-filled single-walled carbon nanotubes (2010)
  • Author(s): Joaquin Moreno, Melanie Y.David, Tanglaw Roman, Mamoru Sakaue, Hideaki Kasai
  • Organizer: 2010 International Conference on Solid State Devices and Materials
  • Place of Presentation: The University of Tokyo, Tokyo
• [Presentation] Mechanism of Nuclear Spin Conversion of H_2 Molecules with Coadsorbed Magnetic Molecules on Metal Surfaces (2010)
  • Author(s): Yuji Kunisada, Wilson A.Dino, Hideaki Kasai
  • Organizer: psi-k 2010 conference
  • Place of Presentation: Berlin, Germany
• [Presentation] Structural and dynamical properties of hydrogen in graphene and platinum surface systems (2010)
  • Author(s): Tanglaw Abat Roman, Hideaki Kasai
  • Organizer: International Conference on Core Research and Engineering Science of Advanced Materials (Global COE Program) & Third International Conference on Nanospintronics Design and Realization, 3rd-ICNDR
  • Place of Presentation: Osaka, Japan
• [Presentation] Mechanism of Nuclear Spin Conversion of H_2 Molecules with Coadsorbed O_2 Molecules on Metal Surfaces (2010)
  • Author(s): Yuji Kunisada, Hiroshi Nakanishi, Wilson A.Dino, Hideaki Kasai
  • Organizer: International Conference on Core Research and Engineering Science of Advanced Materials (Global COE Program) & Third International Conference on Nanospintronics Design and Realization, 3rd-ICNDR
  • Place of Presentation: Osaka, Japan
• [Presentation] 酸素共吸着銀表面における水素分子のオルソ・パラ転換機構 (2010)
  • Author(s): 國貞雄治, 中西寛, Wilson A.Dino, 笠井秀明
  • Organizer: 第51回真空に関する連合講演会
  • Place of Presentation: 大阪大学(大阪)
• [Presentation] Density functional theory investigation on H_2 dissociative adsorption onNi (111) and Cr-decorated Ni (111) surfaces (2010)
  • Author(s): Allan Abraham B.Padama, Melanie Y.David, 笠井秀明, Kawai Hiroyuki
  • Organizer: 第51回真空に関する連合講演会
  • Place of Presentation: 大阪大学(大阪)
• [Presentation] 銀表面における水素分子のオルソ・パラ転換における共吸着酸素分子の影響の理論的研究 (2010)
  • Author(s): 國貞雄治, 中西寛, Wilson A.Dino, 笠井秀明, 福谷克之
  • Organizer: 日本物理学会2010年秋季大会会
  • Place of Presentation: 大阪府立大学(大阪)
• [Presentation] DFT investigation on H_2 dissociative adsoprtion on Ni and Cr-decoratedNi surfaces (2010)
  • Author(s): Allan Abraham B.Padama, Melanie Y.David, Hideaki Kasai, Hiroyuki Kawai
  • Organizer: 15th Osaka University-De La Salle University Academic Workshop
  • Place of Presentation: De La Salle University, Philippines
• [Presentation] Hydrogen molecules on solid surfaces: ortho-para conversion in static and dynamic schemes (2009)
  • Author(s): K. Fukutani
  • Organizer: The 11th ISSP International Symposium (ISSP-11) on Hydrogen and Water in Condensed Matter Physics
  • Place of Presentation: Chiba, Japan
  • Year and Date: 2009-10-16
• [Presentation] Ortho-Para conversion of H2 and Para-Ortho conversion of D2 on the Amorphous Solid Water Ice Surface (2009)
  • Author(s): T. Sugimoto, K. Fukutani
  • Organizer: Horiba-ISSP International Symposium (ISSP-11)Hydrogen and water in condensed matter physics
  • Place of Presentation: Chiba, Japan
  • Year and Date: 2009-10-13
• [Presentation] Molecular physisorption at the groove and interior of single-walled carbon nanotubes (2009)
  • Author(s): S. Iwata, S. Ogura, S. Lee, K. Fukutani,Y. Sato2 and K. Tohji
  • Organizer: 3rd Workshop on Nanotube Optics and Nanospectroscopy
  • Place of Presentation: Miyagi, Japan
  • Year and Date: 2009-06-07
• [Presentation] Pd(111)表面及び表面内部領域に入射した水素原子の量子ダイナミクス (2009)
  • Author(s): 尾澤伸樹, 中西寛, 笠井秀明
  • Organizer: 第50回真空に関する連合講演会
  • Place of Presentation: 学習院大学
• [Presentation] 金属表而上での水素分子のオルソ・パラ転換ダイナミクス (2009)
  • Author(s): 國貞雄治, Wilson Agerico Dino, 中西寛, 笠井秀明
  • Organizer: 第50回真空に関する連合講演会
  • Place of Presentation: 学習院大学
• [Presentation] Pdクラスター表面近傍における量子様態の解析 (2009)
  • Author(s): 尾澤伸樹, 中西寛, 笠井秀明
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
• [Presentation] Ag表面上での水素分子のオルソ・パラ転換 (2009)
  • Author(s): 國貞雄治, 中西寛, 笠井秀明
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
• [Presentation] 理論物性学入門-水素の豊富な物理とその周辺- (2009)
  • Author(s): 笠井秀明
  • Organizer: 第4回水素若手研究会
  • Place of Presentation: 関西大学
• [Presentation] 金属表面上での水素分子のオルソ・パラ転換ダイナミクス (2009)
  • Author(s): 國貞雄治, Wilson Agerico Dino, 中西寛, 笠井秀明
  • Organizer: 第50回真空に関する連合講演会
  • Place of Presentation: 学習院大学
• [Remarks]
  • URL: http://oflab.iis.u-tokyo.ac.jp/Main/home/home_j.html