Indian Journal of Materials Science

Research Article

Effect of Crystallinity of β- and β_bc-Nickel Hydroxide Samples on Chemical Cycling

Estimation of lattice strain of as-prepared, oxidized, and reduced phases of β-nickel hydroxide and β_bc-nickel hydroxide samples.


hkl	β-nickel hydroxide						β_bc-nickel hydroxide
	Lattice strain						Lattice strain
	As prepared		β-nickel hydroxide oxidised phase		β-nickel hydroxide oxidised phase reduction using H₂O₂		As prepared		β_bc-nickel hydroxide oxidised phase using NaClO		β_bc-nickel hydroxide oxidised phase using NaClO followed by reduction using H₂O₂
	β (Cos θ/λ) × 10⁻³	(Sin θ/λ)	β (Cos θ/λ) × 10⁻³	(Sin θ/λ)	β (Cos θ/λ) × 10⁻³	(Sin θ/λ)	β (Cos θ/λ)	(Sin θ/λ)	β (Cos θ/λ) × 10⁻³	(Sin θ/λ)	β (Cos θ/λ)	(Sin θ/λ)

001	1.49	0.1083	2.48	0.1041	3.145	0.1078	0.03769	0.107	0.0261	0.1073	0.04727	0.1089
100	4.55	0.1844	—		1.45	0.1842	7.13 × 10⁻³	0.1854	0.0678	0.2119	4.346 × 10⁻³	0.1852
101	1.47	0.2139	8.44	0.2136	2.841	0.2135	0.0255	0.214	—		0.0239	0.2139
102	2.46	0.2841	—		3.589	0.2842	0.0369	0.283	—		0.0298	0.2844
110	1.161	0.3194	—		2.57	0.3192	7.122 × 10⁻³	0.320	0.04109	0.3299	3.762 × 10⁻³	0.32
111	2.51	0.3374	—		4.08	0.337	0.01512	0.337	—		0.32	0.3369