Table 1.

Ni Content, Ni Crystallite Size, and Textural Properties of Nb₂O₅ and Ni/Nb₂O₅ Materials

Sample	Actual Ni Content (%)a	Average Ni Crystallite Size (nm)b	BET Surface Area (m2 g−1)c
Nb2O5	–	–	196
5%Ni/Nb2O5	4.8	7	219
10%Ni/Nb2O5	9.4	12	181
15%Ni/Nb2O5	13.9	14	180
25%Ni/Nb2O5	23.8	15	141

^aDetermined by inductively coupled plasma mass spectrometry (ICP-MS) analysis.

^bEstimated by XRD by applying the Scherrer equation to the reflection of Ni(111) at 44.6°.

^cDetermined by N₂ physisorption measurements at −196°C.