As the world gears up for the ongoing renewable energy revolution, the temporal variability of the renewable sources remains a big headache for designing a reliable electricity grid. A multi-level energy storage infrastructure is thus necessary to maintain high, year-round dispatchability. No technology that currently exists is ideally suited to meet...

­Thermochemical reactors provide an effective means for water splitting and carbon dioxide splitting. These reactors are able to produce energized chemicals (e.g., hydrogen and carbon monoxide), which can subsequently be used in other chemical reactions (e.g., to reduce, add functionality, etc.) or from which other chemicals can be made (e.g.,...