Figure 3
X-ray diffraction patterns of the samples (solid lines) at different temperatures and MCC (dashed lines) at 323 K are shifted for clarity. The theoretical positions and relative intensities of the strongest reflections from NiO (crosses), fcc Ni (filled circles), hcp Ni (open squares) and NiP (filled triangles) are shown. The cellulose reflections disappear upon heating from 573 to 623 K. |