Impedance spectroscopic study on interfacial ion transfers in cyanide-bridged coordination polymer electrode with organic electrolyte

Mizuno, Yoshifumi; Okubo, Masashi; Asakura, Daisuke; Saito, Tatsuya; Hosono, Eiji; Saito, Yoshiyasu; Ohishi, Kazuo; Kudo, Tetsuichi; Zhou, Haoshen

doi:10.1016/j.electacta.2011.12.068

Cited by 67 publications

(54 citation statements)

References 29 publications

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“…Fig. 6 illustrates four equivalent circuits which are used to fit the plots obtained in blank, 12-3OH-12, QB, and 12-3OH-12 + QB solution, respectively [42], where R s is the solution resistance. R t , which represents the total resistance of the system, is used to calculate the inhibition efficiency [39] and has different expressions in different equivalent circuits.…”

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

Synergistic corrosion inhibition effect of quinoline quaternary ammonium salt and Gemini surfactant in H2S and CO2 saturated brine solution

2015

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Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

Synergistic corrosion inhibition effect of quinoline quaternary ammonium salt and Gemini surfactant in H2S and CO2 saturated brine solution

2015

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“…When the Fe sites of Fe(CN) 6 4group are reduced/oxidized, the lattice constants remain nearly unchanged. However, the lattice constants would increase or decrease in small ranges 45 accompanying with redox reaction of M sites during charge/ discharge, [10][11][12][13][14][15][16][17][18] which may cause the Fe-C≡N-M bridges to collapse more easily especially for hole-doped PBAs, then result in decreased cycle life for SIBs. On the other hand, the Na 2 NiFe(CN) 6 (PBN) sample has only one redox active site of 50 Fe(CN) 6 4in its structure.…”

Section: Cathode Materials Exhibits Particularly Excellent Cycle Life mentioning

confidence: 99%

Structure optimization of Prussian blue analogue cathode materials for advanced sodium ion batteries

et al. 2014

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“…Two plateaus have been observed during the charge (3.52 and 3.85 V) and discharge (3.27 and 3.57 V) in the first cycle, as was found in the cubic KMnFe(CN) 6 . [6,9] The reactions occurring at low and high potential can be assigned to low-spin Fe III /Fe II and high-spin Mn III /Mn II redox couples, respectively. NMHFC-1 and NMHFC-2 show almost the same behavior during Na + extraction/insertion in the first cycle, indicating that the initial structural differences have no influence on the reaction potentials.…”

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A Superior Low‐Cost Cathode for a Na‐Ion Battery

et al. 2013

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A global priority is the development of low-cost, efficient storage of off-peak electric power and of electrical energy generated by energy sources other than fossil fuels (e.g. wind, solar, nuclear).[1] The rechargeable battery offers efficient electrical energy storage (EES), but the Li-ion battery used in hand-held devices is too expensive for large-scale EES. Unlike Li, Na is readily available worldwide and therefore much less costly than Li. However, the existing Na/S [2] and Zebra (Na/NiCl 2 ) [3] batteries are operating on molten electrodes at 250 to 350 8C. Therefore, there is a huge incentive to develop a room-temperature rechargeable, low-cost Na-ion battery (SIB) of high energy density capable of discharge/ charge at a high rate.To date, room-temperature rechargeable batteries have used as cathode oxide hosts into/from which the working ion, H + or Li + , can be inserted/extracted reversibly over a limited solid-solution range. These two working ions are able to be mobile guests in a host having a close-packed oxide-ion array. However, Na + is too large to be sufficiently mobile in a host with close-packed oxide ions; it needs a host framework with a larger interstitial space. Although Na + is stable coordinated by 12 oxide ions in an oxoperovskite, for example, the Na x WO 3 bronze, too high an activation energy is required for Na + transfer between these sites across a shared face coordinated by four oxide ions. The O-2p orbitals that s bond to the Na impede its motion. Replacement of the O 2À ions by (C N) À ions weakens bonding to the Na; the activation energy for Na + transfer is, therefore, strongly reduced, which makes attractive exploration of hexacyanoperovskites as cathode hosts for a rechargeable SIB. We report a synthesis route for a sodium manganese hexacyanoferrate (NMHFC) containing low-cost cations, and we demonstrate that the NMHFC provides a promising highrate performance as the cathode of a SIB of high specific energy density and efficient EES.Prussian blue and its analogues were investigated as hosts for alkali ions several years ago, [4] but that work received little attention. Cui and co-workers have recently reported stable Na + cyclability into potassium copper hexacyanoferrate in an aqueous electrolyte, [5] but an aqueous electrolyte limits the stable voltage of a rechargeable battery to 1.5 V. Therefore, we have chosen to investigate the hexacyano-perovskites in a non-aqueous electrolyte. We have reported the activities versus Na + /Na 0 of KMFe(CN) 6 with M = Fe, Co, Ni, Mn, Zn; high-spin M = Mn II showed a reversible plateau at 3.82 and 3.56 V, [6] respectively, on charge and discharge. We report herein removal of the Na + ion for a SIB to obtain a 3.4 V cathode in a Na half-cell with rhombohedral Na 1.72 MnFe(CN) 6 (NMHFC-1) and compare the performance with that of a cubic Na 1.40 MnFe(CN) 6 (NMHFC-2).The molar Na:Fe:Mn ratios of the sodium manganese hexacyanoferrates were obtained by inductively coupled plasma (ICP) analysis. All the metal atoms were normalized to the Mn c...

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Impedance spectroscopic study on interfacial ion transfers in cyanide-bridged coordination polymer electrode with organic electrolyte

Cited by 67 publications

References 29 publications

Synergistic corrosion inhibition effect of quinoline quaternary ammonium salt and Gemini surfactant in H2S and CO2 saturated brine solution

Synergistic corrosion inhibition effect of quinoline quaternary ammonium salt and Gemini surfactant in H2S and CO2 saturated brine solution

Structure optimization of Prussian blue analogue cathode materials for advanced sodium ion batteries

A Superior Low‐Cost Cathode for a Na‐Ion Battery

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