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Abstract
Highlights
The synthetic protocols of various Prussian blue analogue (PBA)-templated nanocomposites are discussed.
Alkali-ion storage mechanisms based on intercalation, alloying, or conversion reactions are analysed.
The properties of PBA-templated nanocomposites in alkali-ion batteries (AIBs) are evaluated and compared to outline the structure–activity correlation.
Perspectives for the future development of PBA-templated AIB electrodes are envisaged.
Lithium-ion batteries (LIBs) have dominated the portable electronic and electrochemical energy markets since their commercialisation, whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries (AIBs) including sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). Owing to larger ion sizes of Na+ and K+ compared with Li+, nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium storage. With enticing open rigid framework structures, Prussian blue analogues (PBAs) remain promising self-sacrificial templates for the preparation of various nanocomposites, whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal decomposition. This review focuses on the recent progress of PBA-derived nanocomposites from their fabrication, lithium/sodium/potassium storage mechanism, and applications in AIBs (LIBs, SIBs, and PIBs). To distinguish various PBA derivatives, the working mechanism and applications of PBA-templated metal oxides, metal chalcogenides, metal phosphides, and other nanocomposites are systematically evaluated, facilitating the establishment of a structure–activity correlation for these materials. Based on the fruitful achievements of PBA-derived nanocomposites, perspectives for their future development are envisioned, aiming to narrow down the gap between laboratory study and industrial reality.
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Details
1 South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, Guangzhou, People’s Republic of China (GRID:grid.263785.d) (ISNI:0000 0004 0368 7397); Queensland University of Technology, School of Chemistry and Physics, Faculty of Science, Brisbane, Australia (GRID:grid.1024.7) (ISNI:0000 0000 8915 0953)
2 South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, Guangzhou, People’s Republic of China (GRID:grid.263785.d) (ISNI:0000 0004 0368 7397)
3 Queensland University of Technology, School of Chemistry and Physics, Faculty of Science, Brisbane, Australia (GRID:grid.1024.7) (ISNI:0000 0000 8915 0953); Queensland University of Technology, Centre for Materials Science, Brisbane, Australia (GRID:grid.1024.7) (ISNI:0000 0000 8915 0953)