Nitrogen-doped graphene–TiO x N y nanocomposite electrode for highly efficient capacitive deionization

Tian

et al. 2023

RSC Adv.

Section: Modification Methodsmentioning

confidence: 99%

Electrosorption performance on graphene-based materials: a review

Tian

et al. 2023

RSC Adv.

“…The higher concentration reduces the resistance of the ion channel and makes the ions more accessible, which improves the ion removal ability. 51,52 The CDI performance of the 3D-RGO-850 °C electrode at different voltages of 1.2-1.6 V was also studied (Fig. 7c).…”

Section: Capacitive Deionization Performancementioning

confidence: 99%

The structural evolution of 3D-RGO with reduction temperature and its effect on capacitive deionization performance

Environ. Sci.: Water Res. Technol.

Chen

Feng

et al. 2022

“…[44][45][46][47][48][49][50] In MCDI, sea water desalination is realizedb yb oth Faradaic reaction and electrostatic attraction. [51][52][53] Recently,s everal MCDI electrodes have been explored and exhibited clearly higher SAC and SAR than neat CDI electrodes. [54][55][56][57][58] Among pseudocapacitive materials, polyoxometalate (POM)based composites have high capacitance, high stability, and good capacity during charge/discharge.…”

Section: Introductionmentioning

confidence: 99%

“…To improve desalination performance, integration of pseudocapacitance and electric double‐layer capacitance in a mixed capacitive‐deionization (MCDI) electrode is a feasible method . In MCDI, sea water desalination is realized by both Faradaic reaction and electrostatic attraction . Recently, several MCDI electrodes have been explored and exhibited clearly higher SAC and SAR than neat CDI electrodes …”

Section: Introductionmentioning

confidence: 99%

A Polyoxometalate‐Based Binder‐Free Capacitive Deionization Electrode for Highly Efficient Sea Water Desalination

Zhang

et al. 2020

Chemistry A European J

Capacitive deionization is a promising technique in sea water desalination. Compared with common electrodes, mixed capacitive‐deionization electrodes exhibit better performance in sea water desalination because they integrate pseudocapacitance and electric double‐layer capacitance in one system. Herein, a 3D binder‐free mixed capacitive‐deionization electrode was fabricated by direct electrodeposition of SiW12O404− and polyaniline on a 3D exfoliated graphite carrier. In this electrode, SiW12O404−/polyaniline composite particles with a size of about 100–120 nm are dispersed homogenously on the 3D exfoliated graphite carrier. Its specific capacitance reaches 352 F g−1 at 1 A g−1. With increasing current from 1 to 20 A g−1, the specific capacitance only decays by 32 %. When employed in sea water desalination, the performance of this mixed capacitive‐deionization electrode is also excellent. At 1.2 V, the salt adsorption capacity of this mixed electrode reaches 23.1 mg g−1 with a salt adsorption rate of 1.38 mg g−1 min−1 in 500 mg L−1 NaCl. The performance of this electrode is well retained after 30 cycles. The excellent sea water desalination performance originates from the synergistic effect between SiW12O404− and polyaniline. This work has developed polyoxometalate as a new material for capacitive‐deionization electrodes.