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ÔÎÄÈçÏÂBoth the profiles showed at least two domains of H2 desorption peaks. Peaks below 700 C are generally attributed to H2 desorbed from metal particles and therefore indicate the exposed fraction of Ni atoms, whilst high temperature peaks are attributed to H2 located in subsurface layers and/or to spillover H2 |

3Â¥2016-02-02 21:03:03
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