For clean water, just add sunlight
A photocatalytic water purification system that does not need an electric pump

Triazine boosts polymer energy storage
Lithium batteries could potentially store double the amount energy using a new porous framework electrode

'Molecular cobra' turns C-H to C=C
A reagent developed by US chemists can selectively introduce C=C double bonds into unactivated carbon chains

Colour changing paper sensor
Paper that responds to changes in its environment