One-step and room-temperature fabrication of carbon nanocomposites including Ni nanoparticles for supercapacitor electrodes

Akiyama, Tatsuya; Nakanishi, Shuhei; Yaakob, Yazid; Todankar, Bhagyashri; Gupta, Vikaskumar Pradeepkumar; Asaka, Toru; Ishii, Yosuke; Kawasaki, Shigeo; Tanemura, Masaki

doi:10.1039/d2ra02780a

Cited by 4 publications

(3 citation statements)

References 93 publications

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“…132 Fe, Co, and Ni ions were implanted into carbon fiber cloth and subsequently annealed in N 2 atmosphere to form Fe, Co, and Ni nanoparticles. 133 Subsequently, Tatsuya et al irradiated Au foil with 1 keV Ar + ions at room temperature with a simultaneous supply of both C and Ni (Figure 22a) as a model metallic electrode, 134 resulting in fine metallic Ni nanoparticles dispersed in the carbon matrix with local graphitization on the ion-induced roughened Au surface (Figure 22b−e). A carbon layer including fine Ni nanoparticles acted as an excellent faradaic redox reaction layer and the roughened surface contributed to an increase in surface area.…”

Section: Fabrication Of Nanostructures Of Energy Materials By Ion Bea...mentioning

confidence: 99%

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Recent Progress in the Application of Ion Beam Technology in the Modification and Fabrication of Nanostructured Energy Materials

Huang,

Wu,

Cai

et al. 2024

ACS Nano

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The development of green, renewable energy conversion and storage systems is an urgent task to address the energy crisis and environmental issues in the future. To achieve high performance, stable, and safe operation of energy conversion and storage systems, energy materials need to be modified and fabricated through rationalization. Among various modification and fabrication strategies, ion beam technology has been widely used to introduce various defects/ dopants into energy materials and fabricate various nanostructures, where the structure, composition, and property of prefabricated materials can be further accurately tailored to achieve better performance. In this paper, we review the recent progress in the application of ion beam technology in material modification and fabrication, focusing on nanostructured energy materials for energy conversion and storage including photo-(electro-) water splitting, batteries (solar cells, fuel cells, and metal-ion batteries), supercapacitors, thermoelectrics, and hydrogen storage. This review first provides a brief basic overview of ion beam technology and describes the classification and technological advantages of ion beam technology in the modification and fabrication of materials. Then, modification of energy materials by ion beams is reviewed mainly concerning doping and defect introduction. Fabrication of energy materials is also discussed mainly in terms of heterojunctions, nanoparticles, nanocavities, and other nanostructures. In particular, we emphasize the advantages of ion beam technology in improving the performance of energy materials. Finally, we point out our understanding of challenges and future perspectives in applying ion beam technology for the modification and fabrication of energy materials.

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Section: Fabrication Of Nanostructures Of Energy Materials By Ion Bea...mentioning

confidence: 99%

“…(g) Comparison of the faradaic reaction component of the stored charge estimated for the Au–C–Ni sample and the as-received Ni foil. Reprinted with permission from ref . Copyright 2022 Royal Society of Chemistry.…”

Section: Fabrication Of Nanostructures Of Energy Materials By Ion Bea...mentioning

confidence: 99%

Recent Progress in the Application of Ion Beam Technology in the Modification and Fabrication of Nanostructured Energy Materials

Huang,

Wu,

Cai

et al. 2024

ACS Nano

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“…The remarkable electrical, optical, and mechanical characteristics of graphene have garnered a lot of interest since its discovery in 2004 [1,2]. The many possible uses for graphene, including electronic information storage, electrodes for high-performance lithium-ion batteries, and supercapacitors, besides biocompatibility, are a result of its unique physicochemical characteristics [3][4][5][6][7]. Unlocking its full potential will require further research into its synthesis and applications.…”

Section: Introductionmentioning

confidence: 99%

Metal dependence of spontaneous graphitization growth at room temperature

Elnobi,

Asaka,

Abuelwafa

et al. 2024

Phys. Scr.

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The low-temperature graphene growth is a crucial step toward more efficient, cost-effective, productive, cheap, and sustainable energy systems. In this work, we report the effect of transition metal nanoparticles (TMNPs) Ag, Pd, and Cu on the graphitization of amorphous carbon (a-C) deposited onto SiO2 substrates using a one-step magnetron sputtering technique at room temperature (RT). Transmission electron microscopy (TEM), Raman spectroscopy, and x-ray photoelectron spectroscopy (XPS) were used to examine the structures of TMNP-C films. The a-C around the metallic NPs spontaneously formed a disordered graphitic structure. Moreover, the 2D peak was detected in Raman spectra, and XPS analyses revealed the sp2 graphitization for the Ag-C, Pd-C, and Cu-C films deposited on the SiO2 substrates. These studies suggest that these metals’ graphitization activity is in the sequence of Pd > Cu > Ag. The highest catalytic activity of Pd NPs in graphitization at low temperatures was due to the highest carbon solubility and nano-sized particles. Thus, the control of the particle size of the catalyst to enhance the carbon solubility and decrease the melting point will open up a new strategy to grow high-quality graphene at low- temperatures.

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Roles of Metal Nanoparticles for Supercapacitors: A Review

Yan,

Wang,

Cheng

2024

Part & Part Syst Charact

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Recent research on supercapacitors (SCs) has been attractive due to the potential application in a variety of fields related to energy storage. Electrode materials play a very important role for the performance of SCs and various metal nanoparticles are involved in the SC electrodes. In this paper, the roles of metal nanoparticles for SCs are reviewed and discussed. They can serve as a dopant to modify the surface of electrode materials, or be embedded in a composite to effectively reduce the resistance and lead to an enhanced specific capacitance. Some metal nanoparticles can be also employed as electrode materials directly, but easily being oxidized. Metallic nanoparticles can even act as current collectors, especially for these noble metals with excellent stability and high conductivity. Nanoporous metals prepared by dealloying and electrochemical method can be used as both pseudocapacitive materials and current collector of SCs. Some important experimental data on this issue are summarized. A brief discussion on the future directions, challenges and opportunities in this topic is also provided.

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One-step and room-temperature fabrication of carbon nanocomposites including Ni nanoparticles for supercapacitor electrodes

Abstract: The charge collective electrode with faradaic redox reactor consisting of carbon nanocomposite including Ni nanoparticles is promising for the supercapacitor electrode.

Cited by 4 publications

References 93 publications

Recent Progress in the Application of Ion Beam Technology in the Modification and Fabrication of Nanostructured Energy Materials

Recent Progress in the Application of Ion Beam Technology in the Modification and Fabrication of Nanostructured Energy Materials

Metal dependence of spontaneous graphitization growth at room temperature

Roles of Metal Nanoparticles for Supercapacitors: A Review

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