Nickel Nanoparticles for Enhancing Carbon Capture

Figure 6

XPS results of the NiNPs before ((a) Ni 2p_3/2, (c) O 1s, (e) C 1s, and (g) survey) heat treatment and after ((b) Ni 2p_3/2, (d) O 1s, (f) C 1s, and (h) survey) heat treatment at 150°C for 8 hours in air.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)