Heterogeneous Interface Design with Oxygen Vacancy-Rich Assistance High-Capacity Titanium-Based Oxide Anode Materials for Sodium-Ion Batteries.

Researchers are paying more attention to sodium-ion batteries (SIBs) because of their abundant supply of sodium resources and affordable price. TiO offers excellent safety and a long lifespan as an anode material for SIBs. However, the process kinetics is slow due to its limited Na storage efficiency, weak conductivity, and irreversible Na capture.

Enabling Further Organic Electrolyte Infiltration of Cellulose-Based Separators Defect-Rich Polypyrrole Modification for High Sodium Ion Transport in Sodium Metal Batteries.

Sodium metal batteries (SMBs) have high-density and cost-effective characteristics as one of the energy storage systems, but uncontrollable dendrite growth and poor rate performance still hinder their practical applications. Herein, a nitrogen-rich modified cellulose separator with released abundant ion transport tunnels in organic electrolyte was synthesized by in situ polymerization of polypyrrole, which is based on the high permeability of cellulose in aqueous solution and the interfacial interaction between cellulose and polypyrrole. Meanwhile, the introduction of abundant structural defects such as branch chains, oxygen-containing functional groups, and imine-like structure to disrupt polypyrrole conjugation enables the utilization of conductive polymers in composite separator applications.

Detailed in-furnace measurements with reburning of superfine pulverized coal in high CO concentration.

This paper presents detailed measurements of gaseous species during the reburning process with high CO concentration in a bench-scale furnace. Superfine pulverized coal, with the average particle size below or around 20 μm, is used as the reburning fuel. The data of flue gas concentration (NO, HCN, NH, CH, O, CO, CO etc.