Mechanistic insight in site-selective and anisotropic etching of prussian blue analogues toward designable complex architectures for efficient energy storage

Abstract

Two distinct regions formed inside NCP cubes determine the position and anisotropic pathway of subsequent chemical etching.

Wet‐Chemistry: A Useful Tool for Deriving Metal–Organic Frameworks toward Supercapacitors and Secondary Batteries

“…proposed that inside NiCo PBA nanocubes, there are two distinct regions. [ 78 ] As the kinetics illustrated in Figure a, the growth of (100) crystal planes leads to six densely stacked cone‐shaped regions while aggregation of primary nanoparticles results in defect‐enriched loose regions. The start position and direction of etching were primarily determined by the loose regions, where unprotected Ni sites were selectively exposed.…”

“…b) Structure dependent etching mechanism and c-j) the corresponding SEM/TEM images of etched NiCo PBAs in panel (b). Reproduced with permission [78]. Copyright 2020, Royal Society of Chemistry.…”

Co2V2O7@Ti3C2Tx MXene Hollow Structures Synergizing the Merits of Conversion and Intercalation for Efficient Lithium Ion Storage

“…[19][20][21][22][23][24] Nanostructure design is considered a promising strategy for addressing the pulverization issue of TMOs by alleviating structure strains induced by Li + insertion and phase conversion. [25,26] For example, Ni-Co-Mn oxide hollow microspheres, [27] CoFe 2 O 4 multi-shell hollow nanospheres, [28] and hollow Fe 3 O 4 /carbon [29] have been prepared via self-template transformation, calcination, and chemical etching and applied in LIBs as anode materials. [30][31][32] In comparison with their bulk/solid counterparts, these materials respectively exhibited improved capacities and cycling stability.…”

Removal of Cesium and Strontium for radioactive wastewater by Prussian blue nanorods

“…In general, the chemical etching process prone to occur on the loose region of crystal which possessed more defects (Nai, Lu, Yu, Wang, & Lou, 2017;Shi et al, 2021;H. Xu et al, 2020;Yu et al, 2016), and as shown in TEM image and XRD pattern, the high crystallization and low defect of PB nanorod slow down the erosion from hydroxyl ions.…”