JOPSS - Search Results

Journal Articles

sparse-ir; Optimal compression and sparse sampling of many-body propagators

Wallerberger, M.*; Badr, S.*; Hoshino, Shintaro*; Huber, S.*; Kakizawa, Fumiya*; Koretsune, Takashi*; Nagai, Yuki; Nogaki, Kosuke*; Nomoto, Takuya*; Mori, Hitoshi*; et al.

Software X (Internet), 21, p.101266_1 - 101266_7, 2023/02

https://doi.org/10.1016/j.softx.2022.101266

Times Cited Count：10 Percentile：89.64(Computer Science, Software Engineering)

no abstracts in English

Journal Articles

Spontaneous activation behavior of Ni $_{3}$ Sn, an intermetallic catalyst, for hydrogen production via methanol decomposition

Fan, M.*; Xu, Y.*; Sakurai, Junya*; Demura, Masahiko*; Hirano, Toshiyuki*; Teraoka, Yuden; Yoshigoe, Akitaka

International Journal of Hydrogen Energy, 40(37), p.12663 - 12673, 2015/10

https://doi.org/10.1016/j.ijhydene.2015.05.197

Times Cited Count：13 Percentile：32.53(Chemistry, Physical)

The catalytic properties of single-phase Ni $_{3}$ Sn powder in the production of hydrogen via the decomposition of methanol were investigated in isothermal tests at 713, 793, and 873 K. The catalytic activity of Ni $_{3}$ Sn significantly increased with time at 793 and 873 K, but not at 713 K, suggesting that Ni $_{3}$ Sn is spontaneously activated at temperatures above 793 K. At these temperatures, Ni $_{3}$ Sn showed high selectivity for H $_{2}$ and CO production and low selectivity for CH $_{4}$ , CO $_{2}$ , and H $_{2}$ O production, indicating that methanol decomposition was the main reaction, and that side reactions such as methanation and water-gas shift reaction were suppressed. Surface analysis revealed that fine Ni $_{3}$ Sn particles were formed during the reaction, accompanied by a small amount of deposited carbon. The formation of these particles was suggested to be the cause for the spontaneous activation of Ni $_{3}$ Sn.

Journal Articles

Effect of water vapor and hydrogen treatments on the surface structure of Ni $_{3}$ Al foil

Xu, Y.*; Ma, Y.*; Sakurai, Junya*; Teraoka, Yuden; Yoshigoe, Akitaka; Demura, Masahiko*; Hirano, Toshiyuki*

Applied Surface Science, 315, p.475 - 480, 2014/10

https://doi.org/10.1016/j.apsusc.2014.02.144

Times Cited Count：7 Percentile：31.68(Chemistry, Physical)

Journal Articles

Catalytic performance of Ni $_{3}$ Sn and Ni $_{3}$ Sn $_{2}$ for hydrogen production from methanol decomposition

Fan, M.*; Xu, Y.*; Sakurai, Junya*; Demura, Masahiko*; Hirano, Toshiyuki*; Teraoka, Yuden; Yoshigoe, Akitaka

Catalysis Letters, 144(5), p.843 - 849, 2014/05

https://doi.org/10.1007/s10562-014-1212-x

Times Cited Count：15 Percentile：36.66(Chemistry, Physical)

Oral presentation

Oxidation of Ni $_{3}$ Al(210) surface at room temperature using supersonic oxygen molecular beam; Real-time photoemission spectroscopic study with synchrotron radiation

Syu, Y.*; Sakurai, Junya*; Teraoka, Yuden; Yoshigoe, Akitaka; Demura, Masahiko*; Hirano, Toshiyuki*

no journal, ,

Oral presentation

Effect of steam treatments on surface morphology of Ni $_{3}$ Al foil catalysts

Xu, Y.*; Ma, Y.*; Sakurai, Junya*; Teraoka, Yuden; Yoshigoe, Akitaka; Demura, Masahiko*; Hirano, Toshiyuki*

no journal, ,

Oral presentation

Initial oxidation behavior of Ni $_{3}$ Al(210) surface induced by supersonic oxygen molecular beam at room temperature

Xu, Y.*; Demura, Masahiko*; Teraoka, Yuden; Yoshigoe, Akitaka; Sakurai, Junya*; Hirano, Toshiyuki*

no journal, ,

The initial oxidation behavior of a clean Ni $_{3}$ Al (210) surface was studied at 300 K using a supersonic O $_{2}$ molecular beam (O $_{2}$ SSMB) having an O $_{2}$ translational energy of 2.3 eV, and real-time photoemission spectroscopy performed with high-brilliance synchrotron radiation. The evolution behaviors of the O 1s, Ni 2p, Al 2p, and Ni 3p spectra were examined over time during irradiation with the O $_{2}$ SSMB. The spectral analysis revealed that both the Al atoms and the Ni atoms on the surface were oxidized; however, the oxidation of Al progressed much faster than that of Ni.

Oral presentation

Catalytic properties of Ni $_{3}$ Al foils for methane steam reforming

Xu, Y.*; Ma, Y.*; Sakurai, Junya*; Demura, Masahiko*; Hirano, Toshiyuki*; Teraoka, Yuden; Yoshigoe, Akitaka

no journal, ,

Oral presentation

Catalytic performance of Ni $_{3}$ Sn alloy for hydrogen production from methanol decomposition

Fan, M.*; Xu, Y.*; Sakurai, Junya*; Demura, Masahiko*; Hirano, Toshiyuki*; Teraoka, Yuden; Yoshigoe, Akitaka

no journal, ,

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sparse-ir; Optimal compression and sparse sampling of many-body propagators

Spontaneous activation behavior of Ni $_{3}$ Sn, an intermetallic catalyst, for hydrogen production via methanol decomposition

Effect of water vapor and hydrogen treatments on the surface structure of Ni $_{3}$ Al foil

Catalytic performance of Ni $_{3}$ Sn and Ni $_{3}$ Sn $_{2}$ for hydrogen production from methanol decomposition

Oxidation of Ni $_{3}$ Al(210) surface at room temperature using supersonic oxygen molecular beam; Real-time photoemission spectroscopic study with synchrotron radiation

Effect of steam treatments on surface morphology of Ni $_{3}$ Al foil catalysts

Initial oxidation behavior of Ni $_{3}$ Al(210) surface induced by supersonic oxygen molecular beam at room temperature

Catalytic properties of Ni $_{3}$ Al foils for methane steam reforming

Catalytic performance of Ni $_{3}$ Sn alloy for hydrogen production from methanol decomposition