IUPAC recommends characterization of zeolites to be performed using argon gas at 87 K. The advantages of argon over nitrogen are discussed. Examples of Ar isotherms for various zeolites are shown. Finally, the characterization of mesoporous zeolites (hierarchical materials) using Ar adsorption is discussed.
Invinity to build 20MWh flow battery in UK
A surprising comment for someone who (I think you´ve said in the past) worked in the industry. National Grid have a variety of reserve service schemes...