Cage-like porous prussian blue as high-capacity cathode for sodium-ion batteries

Chen, Yuncai and Woo, Haw Jiunn and Fadzil, Sharifah Athira Fatihah Syed Mohd and Tan, Winie and Wang, Fei and Mohd Arof, Abdul Kariem (2022) Cage-like porous prussian blue as high-capacity cathode for sodium-ion batteries. ACS Applied Nano Materials, 5 (4). pp. 4833-4840. ISSN 2574-0970, DOI

Full text not available from this repository.


Fast charge-discharge rate sodium-ion batteries (SIBs) can be considered as an ideal alternative candidate to lithium-ion batteries (LIBs) for low-cost and large-scale application. Prussian blue and its analogues (abbreviated as PB) as a cathode material for SIBs were proposed due to the similar working mechanisms with LIBs. However, the early synthesized PBs have suffered capacity fading at long cycles of charge/discharge and high C-rate. In this work, we synthesized a cage-like porous cubic structure (PB-C) via a simple single iron source precipitation method with a reheating process and acid etching. The galvanostatic charge-discharge measurements have shown that a high specific capacity could be maintained at a high C-rate. At 0.2 C, the specific capacity is 112 mA h g(-1), while at 10 C, the specific capacity is 97 mA h g(-1). Also, PB-C showed no obvious capacity fading at the 1000th cycle with more than 85% capacity retention. Cyclic voltammetry analysis at various scan rates proved that the nanoporous structure with a superior specific surface area carries the pseudocapacitance effect, leading to the excellent electrochemical performance. This exceptional performance discloses that the as-prepared cage-like porous PB is one of the potential candidates as a cathode material in low-cost and large-scale applications for practical SIBs.

Item Type: Article
Funders: Ministry of Higher Education of Malaysia FRGS grant [Grant No:FP085-2018A], Universiti Malaya [Grant No:GPF 038B-2018]
Uncontrolled Keywords: Sodium ion batteries; Cathode; Prussian blue; Porous structure; Pseudocapacitance
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 13 Oct 2023 08:03
Last Modified: 13 Oct 2023 08:03

Actions (login required)

View Item View Item