Record-Breaking HS Capture and ppm-Level Sensing with a Chemically Stable Porous Organic Cage.

The first experimental investigation of a porous organic cage (POC) for the challenging task of HS capture is reported. The N-containing cage molecular material, a tertiary amine POC (6FT-RCC3), demonstrates the highest HS (hydrogen sulfide) capture (record capacity) for a porous material at room temperature and atmospheric pressure (20.6 mmol HS g; 25 HS molecules per cage) combined with excellent reversibility for at least five adsorption-desorption cycles.

Recent advances in the applications of porous organic cages.

Porous organic cages (POCs) have emerged as a new sub-class of porous materials that stand out by virtue of their tunability, modularity, and processability. Similar to other porous materials such as carbons, zeolites, and MOFs, the pore network formed by the interconnected cavities of POCs makes them inherently good candidates for gas capture and gas separation. However, in this review, we focus on the emerging trends in the application of POCs in the fields of clean energy and environmental sustainability, which are a result of their unique features.

A CO -Tolerant Perovskite Oxide with High Oxide Ion and Electronic Conductivity.

Mixed ionic-electronic conductors (MIECs) that display high oxide ion conductivity (σ ) and electronic conductivity (σ ) constitute an important family of electrocatalysts for a variety of applications including fuel cells and oxygen separation membranes. Often MIECs exhibit sufficient σ but inadequate σ . It has been a long-standing challenge to develop MIECs with both high σ and stability under device operation conditions.