Na+ diffusion kinetics in nanoporous metal-hexacyanoferrates. Issue 2 (29th September 2015)

• Record Type: Journal Article
• Authors: Takachi, Masamitsu; Fukuzumi, Yuya; Moritomo, Yutaka
• Is Part Of: Dalton transactions. Volume 45:Issue 2(2016)
• Page Start: 458
• Page End: 461
• Publication Date: 2015-09-29
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c5dt03276h
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Metal-hexacyanoferrates (metal-HCFs) are promising candidates for cathode materials of sodium-ion secondary batteries (SIBs). Abstract : 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 ( E a ) 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.