Na+ diffusion kinetics in nanoporous metal-hexacyanoferrates | Zendy

Masamitsu Takachi | Zendy; Yuya Fukuzumi | Zendy; Yutaka Moritomo | Zendy

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Na⁺ diffusion kinetics in nanoporous metal-hexacyanoferrates

Author(s) -

Masamitsu Takachi,

Yuya Fukuzumi,

Yutaka Moritomo

Publication year - 2015

Publication title -

dalton transactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.98

H-Index - 184

eISSN - 1477-9234

pISSN - 1477-9226

DOI - 10.1039/c5dt03276h

Subject(s) - kinetics , nanoporous , diffusion , chemistry , metal , chemical kinetics , radiochemistry , materials science , chemical engineering , thermodynamics , organic chemistry , physics , quantum mechanics , engineering

Metal-hexacyanoferrates (metal-HCFs) are promising candidates for cathode materials of sodium-ion secondary batteries (SIBs). Here, we systematically investigated Na(+) diffusion constants (D) and the activation energies (Ea) of metal-HCFs against the framework size (= a/2). We found that the magnitude of D (Ea) systematically increases (decreases) with increases in a, indicating that steric hindrance plays a dominant role in Na(+) diffusion.

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