Approaching high-performance lithium storage materials of CoNiO₂ microspheres wrapped coal tar pitch-derived porous carbon

Abstract

Ternary transition metal oxides (TMOs) are deemed as the hopeful anode materials of Li-ion batteries (LIBs) because of the large theoretical capacity, and rich redox reaction. Nevertheless, inherent semiconductor characteristic,...

Well-Dispersed CoNiO2 Nanosheet/CoNi Nanocrystal Arrays Anchored onto Monolayer MXene for Superior Electromagnetic Absorption at Low Frequencies

“…TEM observations (Figure 2c) further demonstrate the complex hierarchical architecture with abundant well-dispersed nanoparticles of ~90 nm (Figure 2c, inset) attaching to the surface of the MXene nanoflake, which is embedded in the dense network arrays of interlaced nanosheets. To further study the structural information of hybrids, an indepth observation was conducted on the nanosheets at the edge region of the MXene (Figure 2d); a lattice fringe of 0.21 nm, highlighted with the yellow line, is detected the in petal-like nanosheets (Figure 2d, the inset), corresponding to the (200) planes of the CoNiO 2 phase [22]. Moreover, a lattice fringe of 0.20 nm, highlighted with a yellow line (Figure 2e) can be seen in the nanocrystals, corresponding to the (111) planes of CoNi nanocrystals (Figure 2e, inset) [23].…”

Comprehensive physicochemical characterization of Algerian coal powders for the engineering of advanced sustainable materials

“…The appeal of coal lies in its remarkable physicochemical properties [6], which are attributed to its inherent structural and microstructural makeup [7]. For instance, its inherent porosity and high specific surface area make it an excellent candidate for applications in adsorption and filtration [8], while its remarkable mechanical strength and durability [9] make it well suited for use in construction materials [2]. Furthermore, coal's electrochemical properties suggest promising potential for energy storage and conversion technologies [4].…”