Journal
CHEMICAL ENGINEERING JOURNAL
Volume 382, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.122853
Keywords
Potassium cobalt hexacyanoferrate; Nanocubic structure; Aqueous aluminum ion battery
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Funding
- National Natural Science Foundation of China [NSFC-21671170, 21673203]
- Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP)
- Program for New Century Excellent Talents of the University in China [NCET-13-0645]
- Six Talent Plan [2015-XCL-030]
- Qinglan Project
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Prussian blue analogues are considered as a class of extremely promising electrode materials for various energy storage devices. Here, the potassium cobalt hexacyanoferrate (K2CoFe(CN)(6)) with a nanocubic assembled structure was successfully synthesized via a one-step hydrothermal method and low-temperature calcination operation; this material is employed as the working electrode for aqueous aluminum ion batteries (AIBs). To some extent, such a 3D open-framework structure accelerated the electronic and ionic transmission and optimized the electrochemical properties. The as-prepared K2CoFe(CN)(6) demonstrated a reversible discharge capacity of 50 mA h g(-1) at a of 0.1 A/g and showed a desirable cycling stability, which makes it a feasible electrode material for aqueous AIBs.
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