Catalytic efficiency of Nb and Nb oxides for hydrogen dissociation

被引：19

作者：

Isobe, Shigehito ^{[1
,2
]}

Kudoh, Katsuhiro ^{[1
]}

Hino, Satoshi ^{[1
]}

Hara, Kenji ^{[3
]}

Hashimoto, Naoyuki ^{[1
]}

Ohnuki, Somei ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0600813, Japan

[2] Hokkaido Univ, Creat Res Inst, Sapporo, Hokkaido 0010021, Japan

[3] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 08期

关键词：

SORPTION KINETICS; METAL-OXIDES; NB2O5; MG; MAGNESIUM; NI; IMPROVEMENT; DESORPTION; MECHANISM; FE;

D O I：

10.1063/1.4929565

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter, catalytic efficiency of Nb, NbO, Nb2O3, NbO2, and Nb2O5 for dissociation and recombination of hydrogen were experimentally investigated. On the surface of Nb and Nb oxides in a gas mixture of H-2 and D-2, H-2 and D-2 molecules can be dissociated to H and D atoms; then, H-2, D-2, and HD molecules can be produced according to the law of probability. With increase of frequency of the dissociation and recombination, HD ratio increases. The ratio of H-2 and HD gas was analyzed by quadrupole mass spectrometry. As a result, NbO showed the highest catalytic activity towards hydrogen dissociation and recombination. (C) 2015 AIP Publishing LLC.

引用

页数：4

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