a/nm

b/nm

c/nm

V/nm3 (each cell)

ΔV/nm3 (each H atom)

LaNi5

0.5014

0.3892

84.7 × 10−3

LaNi5H6.5

0.5399

0.4290

108.30 × 10−3

2.36 × 10−3

27.86%