Synergistic Effects of Black Phosphorus/Boron Nitride Nanosheets on Enhancing the Flame-Retardant Properties of Waterborne Polyurethane and Its Flame-Retardant Mechanism.

We applied black phosphorene (BP) and hexagonal boron nitride (BN) nanosheets as flame retardants to waterborne polyurethane to fabricate a novel black phosphorus/boron nitride/waterborne polyurethane composite material. The results demonstrated that the limiting oxygen index of the flame-retarded waterborne polyurethane composite increased from 21.7% for pure waterborne polyurethane to 33.

The Preparation of Black Phosphorus Quantum Dots by Gas Exfoliation with the Assistance of Liquid Nâ‚‚.

Black phosphorus quantum dots (BPQDs), a type of nanoscale black phosphorus (BP), have fantastic application prospects in various fields. However, the premise of the application of BPQDs depends on its effective preparation. At present, most of preparation processes of BPQDs involve in organic solvents which may be harmful to humans and the environment.

Lithiophilic Silver Coating on Lithium Metal Surface for Inhibiting Lithium Dendrites.

Li metal batteries (LMBs) are known as the ideal energy storage candidates for the future rechargeable batteries due to the high energy density. However, uncontrolled Li dendrites growing during charge/discharge process causes extremely low coulombic efficiency and short lifespan. In this work, a thin lithiophilic layer of Ag was coated on the bare Li surface via a thermal evaporation method, which alleviated volume variations and suppressed Li dendrites growth during cycling.

Review on Applications of Black Phosphorus in Catalysis.

As emerging non-metallic semiconductors, black phosphorus (BP) and few-layered BP (phosphorene) have exhibited unique physicochemical properties and promising application prospect for catalysis related fields. In this review, we first introduced the intriguing properties of BP, including high carrier mobility, a wide optical absorption range and tunable direct band gap. We then summarized the recent research progress about the applications of BP as catalysts, mainly focus on photocatalytic water splitting, photocatalytic degradation of organic pollutants and electrocatalytic Hâ‚‚ and Oâ‚‚ evolution.

Fabrication and Application of Black Phosphorene/Graphene Composite Material as a Flame Retardant.

A simple and novel route is developed for fabricating BP-based composite materials to improve the thermo-stability, flame retardant performances, and mechanical performances of polymers. Black phosphorene (BP) has outstanding flame retardant properties, however, it causes the mechanical degradation of waterborne polyurethane (WPU). In order to solve this problem, the graphene is introduced to fabricate the black phosphorene/graphene (BP/G) composite material by high-pressure nano-homogenizer machine (HNHM).

A Novel Application of Phosphorene as a Flame Retardant.

Black phosphorene-waterborne polyurethane (BPWPU) composite polymer with 0.2 wt % of black phosphorene was synthesized. Scanning electron microscopy (SEM) was used to observe the morphology of phosphorene in polyurethane matrix, which indicated that the phosphorene distributes uniformly in the PU matrix.