Figure 1.

Depth profiles of hydrogen concentrations. (a) At 300°C for 20 min. (b) At 400°C for 10 min. (c) At 500°C for 3 min. (d) At 600°C for 1 min.

Yamada et al. Nanoscale Research Letters 2014 9:72   doi:10.1186/1556-276X-9-72
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