skip to main content

SciTech ConnectSciTech Connect

Title: Catalytic efficiency of Nb and Nb oxides for hydrogen dissociation

In this letter, catalytic efficiency of Nb, NbO, Nb{sub 2}O{sub 3}, NbO{sub 2}, and Nb{sub 2}O{sub 5} for dissociation and recombination of hydrogen were experimentally investigated. On the surface of Nb and Nb oxides in a gas mixture of H{sub 2} and D{sub 2}, H{sub 2} and D{sub 2} molecules can be dissociated to H and D atoms; then, H{sub 2}, D{sub 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{sub 2} and HD gas was analyzed by quadrupole mass spectrometry. As a result, NbO showed the highest catalytic activity towards hydrogen dissociation and recombination.
Authors:
 [1] ;  [2] ; ; ; ;  [1] ;  [3]
  1. Graduate School of Engineering, Hokkaido University, N-13, W-8, Sapporo 060-0813 (Japan)
  2. (Japan)
  3. Catalysis Research Center, Hokkaido University, N-20, W-10, Sapporo 001-0021 (Japan)
Publication Date:
OSTI Identifier:
22489146
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; DISSOCIATION; EFFICIENCY; HYDROGEN; MASS SPECTROSCOPY; MIXTURES; MOLECULES; NIOBATES; NIOBIUM OXIDES; PROBABILITY; RECOMBINATION; SURFACES