Ammonia Gas, Graphene Could Boost Storage Capacity of Batteries

Ammonia Gas, Graphene Could Boost Storage Capacity of Batteries

In yet another application for ammonia and graphene – pure carbon in the form of a very thin, nearly transparent sheet, one atom thick – a Kansas State University engineering team said it has discovered a way to improve sodium- and lithium-ion flexible batteries. The researchers found that sodium storage capacity of paper electrodes depends on the distance between individual layers that can be tuned by heating with ammonia gas.

Read the source article at Electronic Engineering Times Europe

HFO’s Attractive, but Not Yet Satisfactory by Themselves for Comfort Cooling

While the very low direct GWP values HFO’s yield are attractive, none of the HFOs by themselves are fully satisfactory for use in conventional stationary a/c system designs, for reasons of concern about low capacity and flammability, according to a presentation made by Thomas Leck on behalf of colleagues at DuPont. Leck spoke at the15th International Refrigeration and Air Conditioning Conference at Purdue University.

Read the source article at achrnews.com