Construction Technologies Institute

Fluorene- and Xanthene-Based Redox Mediators for Li–O2 Batteries: From Spiro-Linkage to Solo Moieties

Abstract Soluble charge redox mediators (RMs) are key to improving the reversibility and efficiency of lithium–oxygen (Li–O2) batteries by facilitating the oxidation of discharge products and reducing charge overpotentials. In this work, we report on two prospective RMs, F-OMeTAD...

Does an Unconventional Source with a High Silica Content (Obsidian) or a High Alumina Content (Bauxite) Affect the Type of Potassium Zeolite Formation? Preliminary Data on Synthetic Products’ Efficiency in Ammonium Removal

In this paper, obsidian (OS) and bauxite (BX) are used to synthesize zeolites via KOH prefusion, followed by a conventional hydrothermal process (HY) or an unconventional vapor-phase crystallization method (VPC) at 90 °C. The results indicate that, due to their chemical and miner...