In situ construction of flower-like CoP-in-carbon anode materials for high-rate and long-term lithium ion batteries

Abstract

Flower-like CoP/C nanocomposites composed of CoP-in-carbon nanopetals are successfully synthesized through a simple acetate assisted solvothermal synthesis of Co-propanediol alkoxide nanoflowers and subsequent in-situ transformation. The experimental results reveal that...

Gelatin-Guided Synthesis of Bowknot-Like CoP Microstructure as an Anode for Lithium-Ion Batteries

“…Notably, it maintains a high capacity of 385 mAh•g −1 even at a high current density of 2 A•g −1 . Reaching the charge capacity of 963.9 mAh•g −1 at a current density of 1 A•g −1 after 200 cycles, the flower-like CoP/C nanoparticles achieves an excellent rate performance (720.5 mAh•g −1 after 1000 cycles at 4 A•g −1 ), as proposed by Ding et al 32 Nevertheless, the nanoparticles tend to agglomerate because of the extremely high surface energy and the unstable structure during successive charge/discharge process, which results in the poor electrochemical performance.…”

“…However, according to the P 2p spectrum, the peaks at 133. 32,36 The cyclic voltammetry (CV) curve of the bowknot-like CoP sample was analyzed at a sweep rate of 0.1 mV•s −1 over a voltage region of 0.01-3.0 V. From the initial cathodic scan, broad peaks are observed at around 0.76 V and 1.03 V, corresponding to the multiphase conversion reaction of lithium ions (Eqs. 1 and 2).…”

Van der Waals Forces between S and P Ions at the CoP‐C@MoS2/C Heterointerface with Enhanced Lithium/Sodium Storage

“…For CoP, the mass loss before 300 °C (≈14.53%) is the result of the evaporation of adsorbed water in the sample, the combustion of carbon and the Co 3 (PO 4 ) 2 formed by CoP oxidation (increased weight). [ 24 ] After that, the increase of mass (≈2.86%) to ≈700 °C is related to the continuous oxidation of CoP, and then remains roughly stable. It indicates that carbon and CoP are completely oxidized.…”

Hierarchical pompon-like cobalt phosphide as a platinum-free electrocatalyst for dye-sensitized solar cells

“…In the presence of urea as the precursor salt, metal-urea coordination provided steric hindrance and induced a crystal growth in the radial direction. [39][40][41] At this stage, the formation/assembly of the 3D micro-flower-like particle was in domination due to the fast crystal growth/aggregation of 2D micro-sheets. Therefore, each 2D micro-sheet aligned on a microflower-like particle showed a much smoother surface than the final product.…”