Figure 7
From: Obtaining of Ni/NiO nanopowder from aqua solutions of Ni(CH3COO)2 ammonia complexes
TEM micrographs and particle size distribution of powders obtained at 350°С (a, b), 400°С (c, d), and 500°С (e, f). (a) hydroxy-containing precursor (α-3Ni(OH)2 · 2H2O JCPDC No. 22–0444, h.c.p., a = 5.34 Å, c = 7.50 Å), (b) NiO (JCPDC No. 47–0444, f.c.c., a = 5.34 Å), (c) NiO (JCPDC No. 47–0444), (d) Ni/NiO(Ni JCPDC No. 65–2865, f.c.c., a = 3.524 Å, NiO - JCPDC No. 47–0444), (e) NiO (JCPDC No. 47–0444), (f) Ni/NiO (JCPDC No. 65–2865, JCPDC No. 47–0444).