One Pot Solvothermal Synthesis of Sandwich-like Mg Al Layered Double Hydroxide anchored Reduced Graphene Oxide: An excellent electrode material for Supercapacitor

Hatui, Goutam; Nayak, Ganesh Chandra; Udayabhanu, G.

doi:10.1016/j.electacta.2016.09.152

Cited by 44 publications

(22 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, double-hydroxide-based SCs have attracted significant attention, and several outstanding works on the subject have been published [ 118 , 119 , 120 ]. In this regard, by advancing the fabrication of graphene-based composites as electrode materials for SC applications, our research group achieved an Mg-Al LDH using rGO [ 121 ]. Utilizing a one-pot synthesis approach, we first produced sandwich-like Mg/Al LDH anchored with rGO to form the composite.…”

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

“…Hatui et al explained that the exceptional efficiency of these electrode materials was due to the unique manner of electron transfer from metallic layers to rGO. The process of electron transfer from one phase to the other according to Hatui and coworkers was schematically presented in Figure 20 [ 121 ].…”

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

“…Hatui et al used a variety of techniques, including Fourier-transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and XRD analysis along with FESEM, TEM, and atomic-force microscopy (AFM), to verify the sandwiched structure [ 121 ]. It has been found that the special sandwiched morphology of the newly developed rGO-based Mg/Al LDH played a very crucial role in achieving maximum performance [ 121 ]. Selected FESEM images and energy-dispersive X-ray (EDX) graphs of such samples are exhibited in Figure 21 .…”

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

See 2 more Smart Citations

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

et al. 2020

View full text Add to dashboard Cite

This review acmes the latest developments of composites of metal oxides/sulfide comprising of graphene and its analogues as electrode materials in the construction of the next generation of supercapacitors (SCs). SCs have become an indispensable device of energy-storage modes. A prompt increase in the number of scientific accomplishments in this field, including publications, patents, and device fabrication, has evidenced the immense attention they have attracted from scientific communities. These efforts have resulted in rapid advancements in the field of SCs, focusing on the development of electrode materials with features of high performance, economic viability, and robustness. It has been demonstrated that carbon-based electrode materials mixed with metal oxides and sulfoxides can perform extremely well in terms of energy density, durability, and exceptional cyclic stability. Herein, the state-of-the-art technologies relevant to the fabrication, characterization, and property assessment of graphene-based SCs are discussed in detail, especially for the composite forms when mixing with metal sulfide, metal oxides, metal foams, and nanohybrids. Effective synthetic methodologies for the nanocomposite fabrications via intercalation, coating, wrapping, and covalent interactions will be reviewed. We will first introduce some fundamental aspects of SCs, and briefly highlight the impact of graphene-based nanostructures on the basic principle of SCs, and then the recent progress in graphene-based electrodes, electrolytes, and all-solid-state SCs will be covered. The important surface properties of the metal oxides/sulfides electrode materials (nickel oxide, nickel sulfide, molybdenum oxide, ruthenium oxides, stannous oxide, nickel-cobalt sulfide manganese oxides, multiferroic materials like BaMnF, core-shell materials, etc.) will be described in each section as per requirement. Finally, we will show that composites of graphene-based electrodes are promising for the construction of the next generation of high performance, robust SCs that hold the prospects for practical applications.

show abstract

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

See 1 more Smart Citation

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

et al. 2020

View full text Add to dashboard Cite

show abstract

“…A C C E P T E D M A N U S C R I P T 4 electrode modifiers for the supercapacitor [26], electrochemical (bio) sensors [27,28], and microbial fuel cells [29]. Although MgAl LDHs were considered as materials with weak electrical conductivity which is not friendly towards electron transfer between the electrode and the analyte [28], the dispersion of such LDH particles over carbon electrodes exhibits an exceptional rate capability to transfer electrons in microbial fuel cells [29].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Enhanced phosphate removal under an electric field via multiple mechanisms on MgAl-LDHs/AC composite electrode

Hong

Zhu

et al. 2019

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Phosphorus removal is essential to avoid eutrophication in water bodies. Layered double hydroxides (LDHs) are widely used to scavenge phosphate through intercalated ion exchange or surface complexation. Moreover, LDHs have attracted increasing attention as electrode modifiers for supercapacitors. Researchers have begun to re-delve the electrosorption technology according to the fundamental principle of electrical double layers. Herein, we propose a new phosphate removal method inspired by the adsorption characteristic and electrical double-layer capacitive properties of LDHs through electrosorption via capacitive deionization. We present a series of experiments to study the enhanced phosphate removal under an electric field via multiple mechanisms on the MgAl-LDHs/AC electrode. The uptake of phosphate by MgAl-LDHs/AC was investigated as a function of phosphate concentration, applied voltage, electrode materials, and temperature. The MgAl-LDHs/AC electrode possessed a salt removal capacity of 67.92 mg PO4 3-•g-1 (1.2 V, 250 mg•L-1 KH2PO4, 30 °C). The electrosorption kinetics of phosphate ions onto the capacitive deionization electrode followed the pseudo-second-order kinetics model rather than the pseudo-first-order kinetics model. Furthermore, the adsorption isotherms of phosphate on the MgAl-LDHs/AC electrode fitted the Freundlich model better than the Langmuir model. The proposed method could be used for phosphate removal.

show abstract

“…NiMn LDH/CNT 2960@ 1.5A/g 2338@30A/g [57] NiCo LDH/CNT 2046@1A/g 1335@15A/g [61] CoMn LDH@CC 1079@2.1 891@42A/g [56] CoAl LDH@GO 581.6@2A/g - [62] NiFe LDH@Ni 2708@5A/g 1456@10A/g [63] NiAl LDH@G 1255.8@1A/g 755.6@6A/g [64] NiZn LDH 1320@1A/g 580@20A/g [65] MgAl LDH@rGO 1334@1A/g ~626@10A/g [66] CNT: carbon nanotube; CC: carbon cloth; GO: graphene oxide…”

Section: Materials Specific Csp (F/g) Ratementioning

confidence: 99%

Nanostructured bimetallic sulfides as Na ion battery anodes

Chen¹

View full text Add to dashboard Cite

show abstract

One Pot Solvothermal Synthesis of Sandwich-like Mg Al Layered Double Hydroxide anchored Reduced Graphene Oxide: An excellent electrode material for Supercapacitor

Cited by 44 publications

References 64 publications

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

Enhanced phosphate removal under an electric field via multiple mechanisms on MgAl-LDHs/AC composite electrode

Nanostructured bimetallic sulfides as Na ion battery anodes

Contact Info

Product

Resources

About