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acknowledge the comments raised by two anonymous re-
viewers.
Notes and references
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Fig. 2 Catalytic activity of open-ended MoS nanotubes for methanation of
carbon monoxide and hydrogen.
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The accepted mechanism for methanation of CO and H
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An interesting point is where the catalytic action of the MoS
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temperatures, and this provides a potential solution to the
energy conversion of global carbon oxides. Its further study
may also lead to a way to eliminate CO species in fuel cells and
thus to solve the key ‘poisoning’ problem of noble-metal
catalysts.
We thank the Nankai University (P.R.China) and National
Institute of AIST (Japan) for financial support. We also
16 G. Seifert, H. Terrones, M. Terrones, G. Jungnickel and T. Frauenheim,
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