Fabrication of 3D flower-like MoS2/graphene composite as high-performance electrode for capacitive deionization

Peng, Weijun; Wang, Wei; Han, Gaorong; Huang, Yukun; Zhang, Yongsheng

doi:10.1016/j.desal.2019.114191

Cited by 118 publications

(32 citation statements)

References 57 publications

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“…Additionally, the smaller the radius, the smaller the Rct. A smaller Rct for Si/MoS 2 and a vertical line along the virtual axis show lower resistance and better capacitive behavior [39]. The Nyquist curve of the X-ray intercepts the equivalent series resistance of said electrode (R S ), which is 0.506 Ω.…”

Section: Resultsmentioning

confidence: 99%

Si Quantum Dots Assist Synthesized Microflower-Like Si/MoS2 Composites for Supercapacitors

et al. 2020

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The microflower-like Si/MoS2 composites were fabricated using Si quantum dots (QDs) to assist a facile hydrothermal method. The electrochemical performance of Si/MoS2 composite in symmetric and asymmetric systems was studied. Electrochemical characterization revealed that the Si/MoS2 composite electrode in a three-electrode system has a high specific capacitance of 574.4 F·g−1 at 5 A·g−1. Furthermore, the Si/MoS2 composite electrode in a two-electrode system had the maximum energy density of 27.2 Wh·kg−1 when a power density of 749.1 W·kg−1 was achieved. Therefore, this investigation proves the Si/MoS2 composite microflower-like structure should be a promising candidate electrode material for supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Si Quantum Dots Assist Synthesized Microflower-Like Si/MoS2 Composites for Supercapacitors

et al. 2020

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“…MoS 2 as CDI electrode cannot give a satisfactory performance, possibly due to the poor conductivity and low accessible active sites. Shortly afterward, various low dimensional nanomaterials such as CNT (Srimuk et al, 2017), graphene (Han J. L. et al, 2019;Peng et al, 2020), or g-C 3 N 4 (Tian et al, 2020) were employed to further improve the performance of MoS 2 .…”

Section: Faradaic Materialsmentioning

confidence: 99%

Exploration of Energy Storage Materials for Water Desalination via Next-Generation Capacitive Deionization

et al. 2020

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Clean energy and environmental protection are critical to the sustainable development of human society. The numerous emerged electrode materials for energy storage devices offer opportunities for the development of capacitive deionization (CDI), which is considered as a promising water treatment technology with advantages of low cost, high energy efficiency, and wide application. Conventional CDI based on porous carbon electrode has low salt removal capacity which limits its application in high salinity brine. Recently, the faradaic electrode materials inspired by the researches of sodium-batteries appear to be attractive candidates for next-generation CDI which capture ions by the intercalation or redox reactions in the bulk of electrode. In this mini review, we summarize the recent advances in the development of various faradaic materials as CDI electrodes with the discussion of possible strategies to address the problems present.

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“…32,33 Figure 3B shows the FT-IR spectrum of GO. In addition to the peak at 1621 cm −1 (C C stretching vibration from unoxidized graphitic domains), 28 there were many other peaks of oxygen-containing functional groups appeared at 3379, 1732, 1387, 1233, and 1051 cm −1 and can be attributed to O H stretching vibration from water molecule and hydroxyl, 34 C O stretching vibration from carboxylic acid and carbonyl moieties, 35 deformation vibration of tertiary C OH, 36 C O C stretching vibration and C O stretching vibration, 11 respectively. The FT-IR spectrum of GO indicates the successful synthesis of GO.…”

Section: Characterization Of Gomentioning

confidence: 99%

“…Fortunately, many methods has been proposed for the removal of CTAB from wastewater such as electrochemical oxidation, membrane separation, biological treatment, ion exchange, photocatalytic degradation, coagulation, electro-adsorption, and foam separation. [4][5][6][7][8][9][10][11][12][13] However, these methods encountered many difficulties in the application of industrialization due to their drawbacks such as time-consuming, complicated operating process, high energy requirement, and operating cost. As a whole, adsorption is the most common used method due to its easy operation, low cost, low energy requirement, and so on.…”

Section: Introductionmentioning

confidence: 99%

Efficiently removing cetyl trimethyl ammonium bromide from wastewater by graphene oxide

Chang

Cao

Peng

et al. 2020

Surface & Interface Analysis

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Cetyl trimethyl ammonium bromide (CTAB) containing wastewater from dressing plant may pose a detrimental threaten to mineral beneficiation and environment. The adsorption of CTAB in aqueous solutions by graphene oxide (GO) has been studied in this work. X‐ray diffraction, X‐ray photoelectron spectroscopy, Fourier‐transform infrared spectrometer, and atomic force spectroscopy were used to characterize GO. The results indicated that the adsorption followed the Freundlich model could be well described by pseudo‐second order kinetic model. The adsorption capacity was much bigger than activated carbon and many natural clay minerals. The adsorption process was endothermic, and the adsorption mechanism of CTAB onto GO was proven to be controlled by surface complexation, hydrogen bonding, and electrostatic attraction.

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Fabrication of 3D flower-like MoS2/graphene composite as high-performance electrode for capacitive deionization

Cited by 118 publications

References 57 publications

Si Quantum Dots Assist Synthesized Microflower-Like Si/MoS2 Composites for Supercapacitors

Si Quantum Dots Assist Synthesized Microflower-Like Si/MoS2 Composites for Supercapacitors

Exploration of Energy Storage Materials for Water Desalination via Next-Generation Capacitive Deionization

Efficiently removing cetyl trimethyl ammonium bromide from wastewater by graphene oxide

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