Lerkkasemsan, Nuttapol

Loading...
Thumbnail Image
Preferred name
Lerkkasemsan, Nuttapol
Main Affiliation
Email
nuttapol.le@kmitl.ac.th

Settings

Now showing 1 - 1 of 1
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Mn-Fe Prussian blue analogue as low-cost robust cathode for non-aqueous Zn-ion batteries
    (2023-03-01)
    Yimtrakarn, Trakarn
    ;
    Liao, Yi Chih
    ;
    MV, Ahmed Sanin
    ;
    Chen, Jeng Lung
    ;
    Chuang, Yu Chun
    Zn-ion batteries (ZIBs) are one of the most promising alternatives for large-scale energy storage systems due to two-electron transfer capability, safety, low toxicity, and low cost. However, most of the cathode materials reported for non-aqueous ZIBs still show unsatisfactory electrochemical performance. To overcome this, factors such as type of crystal structure, transition metal-ion coordination, and nature of the d orbitals being filled must be taken into consideration in the design of suitable host materials. Herein, we report the use of a Prussian blue analogue, sodium manganese hexacyanoferrate (NaMnFe-PB), as cathode in ZIBs. Its ease of synthesis, rigid open framework, and compositional and electrochemical tunability make this low-cost Mn-Fe-based compound highly attractive. The strong interactions among the two redox centers Mn<sup>III</sup>/Mn<sup>II</sup>, Fe<sup>III</sup>/Fe<sup>II</sup>, and C[tbnd]N<sup>-</sup> ligand allow two close voltage plateaus at ∼1.50 V vs Zn/Zn<sup>2+</sup>, delivering a capacity of 89.5 mAh g<sup>-1</sup>. Ex-situ X-ray absorption and diffraction techniques confirm the high redox reversibility and structural stability of NaMnFe-PB upon divalent guest insertion. The Fe(CN)<inf>6</inf> vacancies and coordinated water in the host lattice are believed to facilitate cation diffusion. The insight gained in this work may pave the way for the design of low-cost cathode materials for next-generation large-scale energy storage systems.