TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Srimuk, Pattarachai
A1  - Ries, Lucie
A1  - Zeiger, Marco
A1  - Fleischmann, Simon
A1  - Jäckel, Nicolas
A1  - Tolosa, Aura
A1  - Kruner, Benjamin
A1  - Aslan, Mesut
A1  - Presser, Volker
T1  - High performance stability of titania decorated carbon for desalination with capacitive deionization in oxygenated water
JF  - RSC Advances
N2  - Performance stability in capacitive deionization (CDI) is particularly challenging in systems with a high amount of dissolved oxygen due to rapid oxidation of the carbon anode and peroxide formation. For example, carbon electrodes show a fast performance decay, leading to just 15% of the initial performance after 50 CDI cycles in oxygenated saline solution (5 mM NaCl). We present a novel strategy to overcome this severe limitation by employing nanocarbon particles hybridized with sol-gel-derived titania. In our proof-of-concept study, we demonstrate very stable performance in low molar saline electrolyte (5 mM NaCl) with saturated oxygen for the carbon/metal oxide hybrid (90% of the initial salt adsorption capacity after 100 cycles). The electrochemical analysis using a rotating disk electrode (RDE) confirms the oxygen reduction reaction (ORR) catalytic effect of FW200/TiO2, preventing local peroxide formation by locally modifying the oxygen reduction reaction.
Y1  - 2016
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:291:415-4643
SN  - 2046-2069
SS  - 2046-2069
U6  - https://doi.org/10.1039/c6ra22800c
DO  - https://doi.org/10.1039/c6ra22800c
VL  - 6
IS  - 108
SP  - 106081
EP  - 106089
PB  - RSC
ER  -