Ti-based electrode materials for electrochemical sodium ion storage and removal

摘要: Owing to the natural abundance and high safety, electrochemical sodium-ion storage removal devices are considered as promising candidates for large-scale energy water purification systems. When used key component of sodium ion batteries (SIBs), hybrid capacitors (SIHCs), capacitive deionization (CDI) devices, electrode architecture composition need be precisely designed achieve capacity, rate performance, long life span. Among various hosting materials, titanium-based electrodes have been intensively investigated owing their appropriate operating voltage, small strain expansion, fast capability, environmental friendliness, low costs. In this review, we discuss progress Ti-based materials over last two years, covering classification factors (electrical conductivity, diffusion, volume variation, capacity voltage) design SIB, SIHC, CDI applications. The architectural concepts, synthesis methods, microstructural compositional control also discussed. Our perspectives on current impediments future research direction finally This review inspires us propose new chemical strategies that can greatly improve performance.