Figure 3
From: Synthesis of 2D layered transition metal (Ni, Co) hydroxides via edge-on condensation

Crystallographic characterization of Ni(OH)2. (A) XPS spectra of Ni 2p, suggesting a 17.6 eV spin energy separation, which is characteristic of the Ni2+ in Ni(OH)2. (B) Raman spectra of Ag nanopillar SERS substrate with and without Ni(OH)2 thin flakes on. Characteristic peaks of α-Ni(OH)2 indicated by “stars” are observed and a fingerprint one is observed at 3610 cm−1. Inset: SEM image of Ag nanopillar SERS substrate with and without Ni(OH)2 thin flakes on. (C) Low-magnification TEM image. Inset: the SAED pattern. (D) High-magnification TEM image, the d-spacing of \(\left(110\right)\) lattice plane is measured as 1.50 Å.