Published August 24, 2015 | Version v1
Journal article Metadata-only

Catalytic efficiency of Nb and Nb oxides for hydrogen dissociation

Creators

  • 1. Creative Research Institution, Hokkaido University, N-20, W-10, Sapporo 001-0021 (Japan)
  • 2. Graduate School of Engineering, Hokkaido University, N-13, W-8, Sapporo 060-0813 (Japan)
  • 3. Catalysis Research Center, Hokkaido University, N-20, W-10, Sapporo 001-0021 (Japan)

Description

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 H2 and D2, H2 and D2 molecules can be dissociated to H and D atoms; then, H2, D2, 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 H2 and HD gas was analyzed by quadrupole mass spectrometry. As a result, NbO showed the highest catalytic activity towards hydrogen dissociation and recombination

Additional details

Identifiers

DOI
10.1063/1.4929565;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
107
Journal Issue
8
Journal Page Range
p. 081602-081602.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47059214
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ATOMS; DISSOCIATION; EFFICIENCY; HYDROGEN; MASS SPECTROSCOPY; MIXTURES; MOLECULES; NIOBATES; NIOBIUM OXIDES; PROBABILITY; RECOMBINATION; SURFACES
Descriptors DEC
CHALCOGENIDES; DISPERSIONS; ELEMENTS; NIOBIUM COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
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