Characterization of partially Ni substituted manganese hexacyanoferrate cathode material

Maisuradze, Mariam; Li, Min; Aquilanti, Giuliana; Plaisier, Jasper R.; Giorgetti, Marco

doi:10.1016/j.matlet.2022.133259

Cited by 5 publications

(15 citation statements)

References 14 publications

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“…The Figure S3 shows the Fe, Mn and Ni K-edge spectra of the pristine electrode and Zn K-edge spectrum of C1 of 10%NiMnHCF, recorded on small sections of the pellets. XAS spectra of the initial framework metals share the features, which have been already recorded on powder samples [34], while Zn spectrum possesses the characteristics of ZnHCF, being in a good agreement with the previous reports [42]. Much more meaningful is the XANES recorded on the portions where the sample looks inhomogeneous,.…”

Section: D-xrf and Micro-xanes Analysissupporting

confidence: 89%

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Aging Mechanism of Mn-based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

Maisuradze,

Li,

Carlomagno

et al. 2024

Preprint

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The aging mechanism of 10% and 30% nickel substituted manganese hexacyanoferrate cathode material in aqueous zinc-ion batteries has been explored through the advanced synchrotron-based two-dimensional x-ray fluorescence technique. Thanks to the two-dimension modality, not only the metal concentration dynamics throughout the entire electrodes was followed during the aging process, but their spatial distribution was also revealed, suggesting the route of the material transformation. The dissolution of Mn and Ni, and the penetration of Zn inside the framework, alongside the Mn aggregations outside the hexacyanoferrate framework were detected. Additionally, the possibility of conducting x-ray absorption spectroscopy measurements on the regions of interest made it possible to explore the chemical state of each metal, and furthermore, synchrotron-based powder x-ray diffraction demonstrated the gradual structural modification in 30% Ni-containing sample series, in terms of the different phase formation.

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Section: D-xrf and Micro-xanes Analysissupporting

confidence: 89%

“…The synthesis of NiMnHCF was performed through simple and scalable co-precipitation method [28,34]. Manganese sulphate monohydrate (MnSO4⋅H2O), nickel sulphate (NiSO4), sodium ferrocyanide decahydrate (Na4[Fe(CN)6]⋅10H2O) and sodium sulphate (Na2SO4) were utilized without further purification (Sigma Aldrich).…”

Section: Synthesismentioning

confidence: 99%

Aging Mechanism of Mn-based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

Maisuradze,

Li,

Carlomagno

et al. 2024

Preprint

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“…The structure of NiMnHCF cathodes was also checked with synchrotron based PXRD technique. The powder samples had face centred cubic symmetry, F m-3m space group, a = 10.4837 Å, as reported before [30] . Pristine electrode kept F m-3m symmetry, with the slight decrease of the cell volume: a = 10.43 Å.…”

Section: Operando Pxrd Measurementsmentioning

confidence: 95%

“…The NiMnHCF was synthesized through a simple and scalable co-precipitation method [24,30] , by means of a peristaltic pump at a rate of 3.3 mL•min -1 , upon continuous stirring and constant temperature (40 ± 2 °C, regulating with a thermostatic bath). The obtained solution was aged for 5 days.…”

Section: Experimental 21 Synthesismentioning

confidence: 99%

“…It is generally known that, during the insertion/extraction process, the Ni sites are unreactive and they are just balancing the tiny structural disturbances caused by the redox reactions on the Mn sites [28,29] . The synthesis and advanced characterization of the 10% Ni-substituted MnHCF (hereby referred as NiMnHCF) has been already described in previous works [30] .…”

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confidence: 99%

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Structural Modification of Partially Ni-substituted MnHCF Cathode Material for Aqueous Zn-ion Batteries

Maisuradze,

Li,

Gaboardi

et al. 2024

Advanced Materials Science and Technology

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The initial capacity fading and electrochemical profile modification of the nickel substituted manganese hexacyanoferrate cathode material in aqueous zinc-ion batteries was investigated. The outcome of the electrochemical tests suggested the structural transformation of the material; therefore, further characterization has been performed with the synchrotron-based x-ray absorption spectroscopy and powder x-ray diffraction. Indeed, the alteration of the structure was evident with both techniques. The dissolution of Mn and Ni was observed, alongside with the substitution of Mn with Zn. Furthermore, a new Zn-containing phase formation, and the modification of Mn species were demonstrated.

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Structural Engineering of Prussian Blue Analogues Enabling All-Climate and Ultralong Cycling Sodium-Ion Batteries

Peng,

Hua,

Yang

et al. 2024

ACS Nano

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The development of cost-efficient, long-lifespan, and all-climate sodium-ion batteries is of great importance for advancing large-scale energy storage but is plagued by the lack of suitable cathode materials. Here, we report low-cost Narich Mn-based Prussian blue analogues with superior rate capability and ultralong cycling stability over 10,000 cycles via structural optimization with electrochemically inert Ni atoms. Their thermal stability, all-climate properties, and potential in full cells are investigated in detail. Multiple in situ characterizations reveal that the outstanding performances benefit from their highly reversible three-phase transformations and trimetal (Mn−Ni−Fe) synergistic effects. In addition, a high sodium diffusion coefficient and a low volume distortion of 2.3% are observed through in situ transmission electron microscopy and first-principles calculations. Our results provide insights into the structural engineering of Prussian blue analogues for advanced sodium-ion batteries in large-scale energy storage applications.

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Characterization of partially Ni substituted manganese hexacyanoferrate cathode material

Cited by 5 publications

References 14 publications

Aging Mechanism of Mn-based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

Aging Mechanism of Mn-based Prussian Blue Cathode Material by Synchrotron 2D X-ray Fluorescence

Structural Modification of Partially Ni-substituted MnHCF Cathode Material for Aqueous Zn-ion Batteries

Structural Engineering of Prussian Blue Analogues Enabling All-Climate and Ultralong Cycling Sodium-Ion Batteries

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