Na+ diffusion kinetics in nanoporous metal-hexacyanoferrates

作者：Takachi Masamitsu; Fukuzumi Yuya; Moritomo Yutaka^*

来源：Dalton Transactions, 2016, 45(2): 458-461.

DOI：10.1039/c5dt03276h

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 (E-a) systematically increases (decreases) with increases in a, indicating that steric hindrance plays a dominant role in Na+ diffusion.

• 出版日期2016