Sodium-rich iron hexacyanoferrate with nickel doping as a high performance cathode for aqueous sodium ion batteries

Wang, Jie; Mi, Changhuan; Nie, Ping; Dong, Shengyang; Tang, Shengyang; Zhang, Xiaogang

doi:10.1016/j.jelechem.2018.04.011

Cited by 47 publications

(29 citation statements)

References 57 publications

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“…The N‐coordinated TMs can be partially substituted by a single element or multiple elements in order to adjust the lattice parameters and redox property. Owing to the “zero‐strain” character and higher conductivity of NiHCFs, [ 25,178 ] Ni‐substitution has been widely employed to optimize the performances of NaFeHCFs, [ 179–181 ] KFeHCFs, [ 182,183 ] NaMnHCFs, [ 121,184,185 ] NaCoHCFs, [ 124,186 ] and NaCuHCFs. [ 19,187 ] In addition, the redox‐active Co and Fe have also been used to modify NaMnHCFs [ 102,185,188 ] and KMnHCFs.…”

Section: Elemental Substitutionmentioning

confidence: 99%

“…For FeHCFs, it is reported that the Ni‐substitution leads to slightly reduced lattice parameters of NaNi x Fe 1‒ x HCF ( x ≤ 0.3) [ 180 ] and KNi x Fe 1‒ x HCF ( x ≤ 0.08), [ 183 ] which can be ascribed to the smaller radius of Ni 2+ (69 pm) than Fe 2+ (78 pm). However, some studies reported a different change, [ 179,181 ] probably due to the existence of the HS‐Fe III that has a smaller radius (65 pm). The addition of Ni 2+ can affect the morphology and particle size of the precipitate due to the changes in nucleation rate and nuclei composition.…”

Section: Elemental Substitutionmentioning

confidence: 99%

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Hexacyanoferrate‐Type Prussian Blue Analogs: Principles and Advances Toward High‐Performance Sodium and Potassium Ion Batteries

Zhou

Cheng

Wang

et al. 2020

Advanced Energy Materials

278

209

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Na‐ion batteries (NIBs) and K‐ion batteries (KIBs) are promising candidates for next‐generation electric energy storage applications due to their low costs and appreciable energy/power density compared to Li‐ion batteries. In the search for viable electrode materials for NIBs and KIBs, Prussian blue analogs (PBAs) with inherent rigid and open frameworks and large interstitial voids have shown an impressive ability to accommodate big alkali‐metal ions without structure collapse. In particular, hexacyanoferrates (HCFs) utilizing abundant Fe(CN)6 resources are the most interesting subgroup of PBAs, being able to deliver a specific capacity of 70–170 mAh g‒1 and a voltage of 2.5‒3.8 V in NIBs/KIBs. In this Review, a comprehensive discussion of the HCF‐type cathode materials in terms of their structural features, redox mechanisms, synthesis control, and modification strategies based on research advances over the last ten years. The methodologies and achievements in improving the material properties of HCFs including the compositional stoichiometry, crystal water, crystallinity, morphology, and electrical conductivity are outlined, with the aim to promote understanding of these materials and provide new insights into future design of PBAs for advanced rechargeable batteries.

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Section: Elemental Substitutionmentioning

confidence: 99%

Section: Elemental Substitutionmentioning

confidence: 99%

Hexacyanoferrate‐Type Prussian Blue Analogs: Principles and Advances Toward High‐Performance Sodium and Potassium Ion Batteries

Zhou

Cheng

Wang

et al. 2020

Advanced Energy Materials

278

209

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“…Recent reports suggest that sodium-and potassium-rich PBAs with the compositions close to the ideal formula of PB A 2 Fe[Fe (CN) 6 ] (A = Na, K) deliver maximal capacity values (higher than 120 mAh g À 1 ). [7][8][9][11][12][13] The presence of Fe(CN) 6 nÀ vacancies [14] in the PB structure results in inferior capacity values (as the number of electroactive Fe 2 + /Fe 3 + sites is significantly diminished in vacancy-rich materials) as well as other behaviors including charge-discharge reversibility and stability characteristics. [15] Apart from the practical characteristics, cation-rich and cation-poor PB materials differ in the mechanism of insertion, which likely involves phase transformations in the course of cation insertion and deinsertion.…”

Section: Introductionmentioning

confidence: 99%

“…Since the amount of research on the energy storage chemistry of PBAs is now sufficiently large, some general trends in Na + and K + insertion mechanisms into PB‐derived materials can be outlined. Recent reports suggest that sodium‐ and potassium‐rich PBAs with the compositions close to the ideal formula of PB A 2 Fe[Fe(CN) 6 ] (A=Na, K) deliver maximal capacity values (higher than 120 mAh g −1 ) . The presence of Fe(CN) 6 n− vacancies in the PB structure results in inferior capacity values (as the number of electroactive Fe 2+ /Fe 3+ sites is significantly diminished in vacancy‐rich materials) as well as other behaviors including charge‐discharge reversibility and stability characteristics …”

Section: Introductionmentioning

confidence: 99%

Electrochemical Analysis of the Mechanism of Potassium‐Ion Insertion into K‐rich Prussian Blue Materials

et al. 2020

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The electrochemical insertion patterns of potassium‐rich Prussian blue (PB) materials with different compositions and particle sizes were systematically compared, which allows us to deduce correlations between the influence of particle morphology and material structure on the potassium‐ion insertion mechanisms in aqueous solutions. Although structural analysis indicates that no first‐order phase transitions occur for nanosized K‐rich Prussian blue particles upon potassium‐ion (de)insertion, the electrochemical data (galvanostatic charge/discharge, cyclic voltammetry, small‐ and large‐amplitude potential step experiments) suggest other outcomes related to the two‐phase insertion mechanism for all explored PB samples. However, even in a case whereby the phase transformation is not accompanied by abrupt changes in the crystal structure, the two‐phase mechanism dominates all of the essential practical characteristics of performance of this cathode material, such as hysteresis (overpotential) between charge and discharge steps and the measured diffusivities of potassium‐ions during charge and discharge. The formalism presented herein provides a basis for quantitatively assessing ion insertion and deinsertion parameters unique to PB analogues.

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“…Nevertheless, this kind of material easily suffered inadequate cycling property in medium aqueous electrolytes. [ 124 ] Besides, the nickel‐substituted copper hexacyanoferrate (Na 2 Cu 0.6 Ni 0.4 [Fe(CN) 6 ]) has been used as a superior cathode for aqueous SIBs, and the effect of Ni substitution on the electrochemical properties of Na 2 Cu 1– x Ni x [Fe(CN) 6 ] (0 < x < 1) series was researched in‐depth. As a result, the aqueous SIBs assembled by Na 2 Cu 0.6 Ni 0.4 [Fe(CN) 6 ] cathodes delivered a discharge capacity of 62 mAh g −1 at a current rate of 0.5 C with average operation voltage of 0.62 V (vs Ag/AgCl).…”

Section: Element Dopingmentioning

confidence: 99%

Intrinsic Structure Modification of Electrode Materials for Aqueous Metal‐Ion and Metal‐Air Batteries

Ling

Wang

Chen

et al. 2020

Adv Funct Materials

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In consideration of low cost, simple operation, safe reliability, and environmental benignity, aqueous rechargeable batteries (ARBs) have attracted great interest among portable electronic devices, energy storage, and power source batteries. As the key components of ARBs, the electrode materials lead to a crucial effect for the overall battery properties, such as working voltage, electrocatalytic activity, capacity, and cycling stability. However, owing to the highly reactive aqueous environment, the electrode materials typically demonstrate a series of issues, including active material dissolution, structural instability, and poor catalytic activity, restricting their application. So far, several researchers have devoted much effort to improve the properties of electrode materials for ARBs. In particular, intrinsic structure modification in terms of vacancy regulation, interlayer engineering, and element doping have been applied to optimize the electronic and phase structure of electrode materials, contributing to elevated ion diffusion, fast charge transfer, and adequate active sites for electrochemical reaction. In this review, recent reports are demonstrated about the intrinsic structure modification of electrode materials in aqueous metal‐ion and metal‐air batteries, focusing on various regulation strategies and functional mechanisms. Finally, a brief conclusion and perspective is presented to demonstrate constructive suggestions and opinions for further research.

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Sodium-rich iron hexacyanoferrate with nickel doping as a high performance cathode for aqueous sodium ion batteries

Cited by 47 publications

References 57 publications

Hexacyanoferrate‐Type Prussian Blue Analogs: Principles and Advances Toward High‐Performance Sodium and Potassium Ion Batteries

Hexacyanoferrate‐Type Prussian Blue Analogs: Principles and Advances Toward High‐Performance Sodium and Potassium Ion Batteries

Electrochemical Analysis of the Mechanism of Potassium‐Ion Insertion into K‐rich Prussian Blue Materials

Intrinsic Structure Modification of Electrode Materials for Aqueous Metal‐Ion and Metal‐Air Batteries

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