Potential electrochemical hydrogen storage in nickel and cobalt nanoparticles-induced zirconia-graphene nanocomposite

Kaur, Manmeet; Pal, Kaushik

doi:10.1007/s10854-020-03641-y

Cited by 19 publications

(8 citation statements)

References 33 publications

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“…Unexpectedly, in Ref. 22 we see the signs opposite to that presented in Ref.20: cathodic charge and anodic discharge (Fig. 3).…”

Section: Adsorption/spillover In 'Hydrogen Sorption By Oxides' Contex...contrasting

confidence: 57%

“…Few years later the same authors reported the same ZrO2/GO system modified with Ni and Co metals [22], with comparable capacity values of 416 and 291 mAh/g for materials with BET areas of 185 and 100 m 2 /g respectively. For these systems hydrogen spillover is quite usual [23,24] because H adatoms can be formed on metals and move to oxide and to carbon surfaces.…”

Section: Adsorption/spillover In 'Hydrogen Sorption By Oxides' Contex...mentioning

confidence: 82%

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‘Hydrogen storage’ under oxidative conditions: A pandemic case

Tsirlina

2023

Current Opinion in Electrochemistry

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“…Unexpectedly, in Ref. 22 we see the signs opposite to that presented in Ref.20: cathodic charge and anodic discharge (Fig. 3).…”

Section: Adsorption/spillover In 'Hydrogen Sorption By Oxides' Contex...contrasting

confidence: 57%

Section: Adsorption/spillover In 'Hydrogen Sorption By Oxides' Contex...mentioning

confidence: 82%

‘Hydrogen storage’ under oxidative conditions: A pandemic case

Tsirlina

2023

Current Opinion in Electrochemistry

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“…He et al 38 recently demonstrated that a stable monolayer of atomic hydrogen can be electrodeposited on a single layer of graphene through a Pt electrocatalyzed spillover−surface diffusion−chemisorption. Electrochemical hydrogen uptake in Pd-coated porous silicon/graphene oxide was reported by Honarpazhouh et al 39 and in zirconia− graphene nanocomposite within Ni and Co incorporated nanoparticles by Kaur et al 40 In all cases, the characteristic CV peaks attributed to adsorption of hydrogen from water decomposition (cathodic direction) and consecutive oxidation of adsorbed hydrogen, followed by desorption (anodic directions), were the first indication of the capability of these electrodes to uptake hydrogen.…”

Section: Physical Characterizationmentioning

confidence: 72%

Edge-Functionalized Graphene/Polydimethylsiloxane Composite Films for Flexible Neural Cuff Electrodes

Montoya

Wagner

Ryder

et al. 2023

ACS Appl. Mater. Interfaces

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The design of neural electrodes has changed in the past decade, driven mainly by the development of new materials that open the possibility of manufacturing electrodes with adaptable mechanical properties and promising electrical properties. In this paper, we report on the mechanical and electrochemical properties of a polydimethylsiloxane (PDMS) composite with edge-functionalized graphene (EFG) and demonstrate its potential for use in neural implants with the fabrication of a novel neural cuff electrode. We have shown that a 200 μm thick 1:1 EFG/PDMS composite film has a stretchability of up to 20%, a Young’s modulus of 2.52 MPa, and a lifetime of more than 10000 mechanical cycles, making it highly suitable for interfacing with soft tissue. Electrochemical characterization of the EFG/PDMS composite film showed that the capacitance of the composite increased up to 35 times after electrochemical reduction, widening the electrochemical water window and remaining stable after soaking for 5 weeks in phosphate buffered saline. The electrochemically activated EFG/PDMS electrode had a 3 times increase in the charge injection capacity, which is more than double that of a commercial platinum-based neural cuff. Electrochemical and spectrochemical investigations supported the conclusion that this effect originated from the stable chemisorption of hydrogen on the graphene surface. The biocompatibility of the composite was confirmed with an in vitro cell culture study using mouse spinal cord cells. Finally, the potential of the EFG/PDMS composite was demonstrated with the fabrication of a novel neural cuff electrode, whose double-layered and open structured design increased the cuff stretchability up to 140%, well beyond that required for an operational neural cuff. In addition, the cuff design offers better integration with neural tissue and simpler nerve fiber installation and locking.

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“…Nanocomposites with good specific surface area and porosity are viable materials for sustainable hydrogen storage. Kaur et al produced Ni-ZrO 2 -GO and Co-ZrO 2 -GO nanocomposites by a hydrothermal method. The properties of the nanocomposites were influenced by various aspects.…”

Section: Electrochemical Hydrogen Storage Materialsmentioning

confidence: 99%

Electrochemical Hydrogen Storage Materials: State-of-the-Art and Future Perspectives

Xu,

Dong,

et al. 2024

Energy Fuels

140

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Hydrogen is the energy carrier with the highest energy density and is critical to the development of renewable energy. Efficient hydrogen storage is essential to realize the transition to renewable energy sources. Electrochemical hydrogen storage technology has a promising application due to its mild hydrogen storage conditions. However, research on the most efficient electrochemical hydrogen storage materials that satisfy the goals of the U.S. Department of Energy remain open questions. All of the above require strategies for designing new hydrogen storage materials. This review provides a brief overview of hydrogen preparation, hydrogen storage, and details the development of electrochemical hydrogen storage materials. We summarize the electrochemical hydrogen storage capabilities of alloys and metal compounds, carbonaceous materials, metal oxides, mixed metal oxides, metal−organic frameworks, MXenes, and polymer-based materials. It was observed that mixed metal oxides exhibit superior discharge capacity and cycling stability. The review indicates that it is vital to create novel materials with large surface area, active-conductive profiles, and low cost. We describe the challenges, gaps, and future perspectives of electrochemical hydrogen storage materials, and hope that the review could draw more attention to the development of electrochemical hydrogen storage materials with high hydrogen storage capacity, high safety, high cycle stability, and low cost and promoting their practical applications.

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Potential electrochemical hydrogen storage in nickel and cobalt nanoparticles-induced zirconia-graphene nanocomposite

Cited by 19 publications

References 33 publications

‘Hydrogen storage’ under oxidative conditions: A pandemic case

‘Hydrogen storage’ under oxidative conditions: A pandemic case

Edge-Functionalized Graphene/Polydimethylsiloxane Composite Films for Flexible Neural Cuff Electrodes

Electrochemical Hydrogen Storage Materials: State-of-the-Art and Future Perspectives

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