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Elasticity of Prussian‐Blue‐Analogue Nanoparticles
Author(s) -
Félix Gautier,
Mikolasek Mirko,
Shepherd Helena J.,
Long Jérôme,
Larionova Joulia,
Guari Yannick,
Itié JeanPaul,
Chumakov Aleksandr I.,
Nicolazzi William,
Molnár Gábor,
Bousseksou Azzedine
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700796
Subject(s) - prussian blue , chemistry , nanoparticle , shear modulus , bulk modulus , elastic modulus , particle size , elasticity (physics) , debye model , diffraction , poisson's ratio , young's modulus , composite material , condensed matter physics , nanotechnology , optics , materials science , poisson distribution , physics , statistics , mathematics , electrode , electrochemistry
We report on the elastic properties of Ni/[Fe(CN) 6 ] Prussian‐blue‐analogue nanoparticles investigated by high‐pressure synchrotron X‐ray diffraction and nuclear inelastic scattering. For 3 nm and 115 nm particles, we have obtained bulk moduli of (30.3 ± 3.8) GPa and (24.5 ± 3.2) GPa, with Debye sound velocities of (2496 ± 46) m s –1 and (2407 ± 38) m s –1 , respectively. Combining these results, Poisson's ratio, Young's modulus, the shear modulus, and the transversal/longitudinal sound velocities have been calculated for each particle size. All of these physical quantities suggest a stiffening of the lattice when the particle size decreases, which is mainly attributed to the reduction of iron ions on the particle surface.