Electrochemical and thermodynamic properties of hexacyanoferrate(II)/(III) redox system on multi-walled carbon nanotubes

A graphene-based electrochemical filter for water purification

“…The electron transfer rate constant was calculated to be k ¼ 6.3 Â 10 À3 cm s À1 , in well accordance with the previously reported value of k ¼ 6.0 Â 10 À3 cm s À1 for the same redox couple occurring at an aligned CNT electrode. 54 In addition, the CPE dl of the ltration system (250.0 mF) was 14-fold lower than that of the batch system, in accordance with the previous study 52 suggesting that the convection reduces the Debye length by inducing the rapid near electrode surface replenishment of the target molecule.…”

A reactive electrochemical filter system with an excellent penetration flux porous Ti/SnO2–Sb filter for efficient contaminant removal from water

“…To the best of our knowledge, the measured k obs value (4.35 Â 10 À4 m s À1 ) in this study is the highest in an electrochemical ow-through reactor compared with those reported in the literature. The measured k obs values were 3.1-fold and 4.4-fold higher than the highest value reported for Ti 4 O 7 -based reactive electrochemical membranes (1.4 Â 10 À4 m s À1 ) 13 and CNT network based reactive electrochemical lters (1.0 Â 10 À4 m s À1 ) 37 . More contrastive details are shown in Table S3.…”

Mineralization of organic pollutants by anodic oxidation using reactive electrochemical membrane synthesized from carbothermal reduction of TiO2

“…Recently, carbon nanotube electrochemical filters have been developed for the removal of organic pollutants, however they are not active for OH production (Tsierkezos and Ritter, 2012;Schnoor and Vecitis, 2013;Gao and Vecitis, 2013;Liu et al, 2015). Besides, research works from Guo et al (2016) showed that a convectionenhanced rate constant for Fe(CN) 6 4À oxidation of 1.4 10 À4 m s À1 e the highest reported in the literature, close to the kinetic limit e was reached by using porous sub-stoichiometric titanium oxide (TiO x ) reactive electrochemical membrane (REM) .…”