Bimetal-organic-framework derived CoTiO3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

Abstract

Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous CoTiO 3 micro-prism with a high tap density (1.8 g cm −3) is newly developed by using a novel Co-Tibimetal organic framework (BMOF) as precursor. It is also interesting to find that the Co-Ti-BMOF derived carbon-free mesoporous CoTiO 3 micro-prisms deliver a superior stable and more powerful Na + storage than other similar reported titania, titanate and their carbon composites. Its achieved capacity retention ratio for 2,000 cycles is up to 90.1% at 5 A g −1 .

Mesoporous NH4NiPO4·H2O for High-Performance Flexible All-Solid-State Asymmetric Supercapacitors

“…Recently, for the reason of environmental and energy issues, research on energy storage have become one of hot spots all over the world (Wang et al, 2017 , 2019 ; Zheng et al, 2017 ; Huang et al, 2018a , b , c ; Liu et al, 2018 ; Wang F. et al, 2018 ; Wang H. et al, 2018 ; Wang H. K. et al, 2018 ; Zhang et al, 2018a ; Zhao et al, 2018 ). Among the energy storage systems, supercapacitors have sparked increasing attention due to their high power density and long cycle life (Conway, 1999 ; Aricò et al, 2005 ; Miller and Simon, 2008 ; Yuan et al, 2012 ; Bin Jiang et al, 2018 ; Zhu et al, 2018 ).…”

Hierarchical flower-like spinel manganese-based oxide nanosheets for high-performance lithium ion battery

“…Therefore, developing appropriate synthetic methods for 2D oxide cathode materials is urgent. The hierarchical architectures constructed from nanostructure with specific dimensions have attracted extensive interest because of their intriguing properties and various potential applications [31][32][33][34][35][36]. A 3D architecture assembled by nanostructure simultaneously combines the advantages of nanostructures and microstructures.…”

“…A 3D architecture assembled by nanostructure simultaneously combines the advantages of nanostructures and microstructures. Based on the advantages of the aforementioned 2D structure for lithium ion battery, hierarchical architectures not only lead to larger specific surface area and shorten the electron/Li + transfer distance, but also could sustain their structure during the repeated cycles [31][32][33][34][35]. Meanwhile, porous structure effectively facilitates the penetration of electrolyte [35,37].…”

Mass transport through metal organic framework membranes

“…Notably, various exciting properties of MOFs have been observed, distinguishing them from traditional porous solids. MOF has high degree of designability and adjustability in their structure and functions [9][10][11]. A specific framework can be produced by designing the combination of metal nodes and organic ligands due to the fixed coordination geometries.…”