The electrical power grid faces a growing need for large-scale energy storage over a wide range of time scales due to costly short-term transients, frequency regulation, and load balancing. The durability, high power, energy efficiency, and low cost needed for grid-scale storage pose substantial challenges for conventional battery technology. (1, 2) Here, we demonstrate insertion/extraction of...

In the development of a conditioning process for cesium-bearing sorbents from decontamination aqueous waste streams, treatment granular material composed (Cs,K)2CuFe(CN)6 loaded onto mesoporous silica particles has been investigated in an additive-free two-step involving (i) calcination at 1000 °C to remove volatile species and (ii) densification by spark plasma sintering. A 92.0 % dense pellet...

Mesoporous cobalt hexacyanoferrate nanocubes (meso-CoHCF) were prepared for the first time through a facile sacrificial template method. The CoHCF mesostructures possess a high specific surface area of 548.5 m²·g-1 and a large amount of mesopores, which enable fast mass transport of electrolyte and abundant energy storage sites. When evaluated as supercapacitor materials, the meso-CoHCF materia...

The controlled growth of surface-modifying polymer films by electrodeposition often fails because the lack redox activity these compounds. Here, electroactive complexants help to electrodeposit non-electroactive polymers. Hence, we investigate counterion-induced polyelectrolytes: three quaternized poly(N,N-dialkylaminoethyl methacrylate)s (qPDAAEMA), in particular their methyl, ethyl, and isopr...