The combined effect of both concentration and pressure differences on electrical potential (Ad~) for two ion-exchanger membranes, one positively charged (AE) and another negatively charged (CE), measured with the membranes in contact with NaCI solutions was studied. Results show a linear dependence between Adp and pressure, independently if AC and AP have the same or opposite directions. The ra...

Hybrid core-shell nanostructures consisting of permalloy (Ni80Fe20) and multiferroic(BiFeO3, BFO/BiFe0.95Co0.05O3, BFC) materials were synthesized by a two-step method, based on wet chemical impregnation and subsequent electrodeposition within porous alumina membranes. Structural and magnetic characterizations have been done to investigate doping effect on magnetic properties and exchange bias....

Undesired water crossover through ion-exchange membranes is a significant limitation in electrically driven desalination processes. The effect of mitigating twofold: 1) degree less reduced due to the unwanted removal water, and 2) brine concentration increased decreased dilution by an molecules. Hence, limits efficiency processes, while energy demand achieve certain level or increases. This esp...

Direct borohydride fuel cells (DBFC) oxidize an easily-stored energy-dense (sodium borohydride: NaBH4), that in theory reacts ca. 400 mV below H2 and produces 8 electrons per BH4- anion. However, the oxidation reaction (BOR) does not fully meet these promises practice: electrocatalyst nature, structure state-of-surface, operating conditions (pH, concentration, temperature, fluxes) noticeably in...

Abstract The alternative desalination technique of membrane capacitive deionization (MCDI) has emerged in the last 15 years and received a lot research attention since then. By using voltage applied between two electrodes covered with ion-exchange membranes, MCDI attempted to challenge established methods such as reverse osmosis or electrodialysis. In this study, through crosslinking sulfosucci...

Bunsen reaction was performed electrochemically using cation exchange membranes prepared by a radiation-induced grafting method for application to the iodine-sulfur thermochemical water-splitting cycle. The reaction experiments using sulfuric acid dissolving sulfur dioxide as the anolyte and hydriodic acid dissolving iodine as the catholyte verified the progress of the aimed reaction. Compared ...

One-step purification and desalination The of water for drinking purposes can require multiple filtration steps technologies to remove contaminants such as salts heavy metals. Some could have value if recovered, but these are often discharged in the waste streams. Uliana et al. describe a general approach fabrication robust, tunable, adsorptive membranes through incorporation porous aromatic fr...

Most commercial anion exchange membranes (AEMs) deploy quaternary ammonium moieties. Alternative cation moieties have been explored in AEMs for fuel cells, but there are no studies focused examining alternative tethered cations ionic separations—such as organic acid transport via electrodialysis. H-cell and conductivity experiments demonstrate that benzyl 1-methyl imidazolium groups polysulfone...