Doped Silicon Nanowires for Lithium Ion Battery Anodes

Salihoglu, Omer; Kahlout, Yasser El

doi:10.1590/1980-5373-mr-2018-0303

Cited by 19 publications

(16 citation statements)

References 31 publications

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“…On the contrary, CV curves for crystalline Si differ from the Si 3 N 4 @Si@Cu anode in this present work. The peaks for crystalline Si are less sharp and are shifted to lower voltages in the cathodic region [ 37 ]. Therefore, these observations further support the characterization findings that the Si 3 N 4 @Si@Cu anode has an amorphous Si instead of crystalline Si morphology.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Si3N4@Si@Cu Thin Films by RF Sputtering as High Energy Anode Material for Li-Ion Batteries

et al. 2021

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Silicon and silicon nitride (Si3N4) are some of the most appealing candidates as anode materials for LIBs (Li-ion battery) due to their favorable characteristics: low cost, abundance of Si, and high theoretical capacity. However, these materials have their own set of challenges that need to be addressed for practical applications. A thin film consisting of silicon nitride-coated silicon on a copper current collector (Si3N4@Si@Cu) has been prepared in this work via RF magnetron sputtering (Radio Frequency magnetron sputtering). The anode material was characterized before and after cycling to assess the difference in appearance and composition using XRD (X-ray Powder Diffraction), XPS (X-ray Photoelectron Spectroscopy), SEM/EDX (Scanning Electron Microscopy/ Energy Dispersive X-Ray Analysis), and TEM (Transmission Electron Microscopy). The effect of the silicon nitride coating on the electrochemical performance of the anode material for LIBs was evaluated against Si@Cu film. It has been found that the Si3N4@Si@Cu anode achieved a higher capacity retention (90%) compared to Si@Cu (20%) after 50 cycles in a half-cell versus Li+/Li, indicating a significant improvement in electrochemical performance. In a full cell, the Si3N4@Si@Cu anode achieved excellent efficiency and acceptable specific capacities, which can be enhanced with further research.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Si3N4@Si@Cu Thin Films by RF Sputtering as High Energy Anode Material for Li-Ion Batteries

et al. 2021

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“…Over the past couple of decades, scientists have consistently fabricated advanced nanostructured materials to develop glucose sensors with high sensitivity and selectivity ( Wang et al, 2013 ; Hwang et al, 2018 ). However, these advanced materials are mostly inorganic nanoparticles (NPs) ( Hwang et al, 2018 ), nanosheets ( Joshna et al, 2020 ), and nanowires ( Thangasamy et al, 2020 ), which makes it possible to tailor the functionality and surface structure of the resulting materials ( Salihoglu and Kahlout, 2019 ) and play a dynamic role in the expansion of electrochemical sensors for glucose detection. These sensors are categorised into two groups: enzymatic glucose (EG) and NEG sensors ( Jayram et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Non-Enzymatic Glucose Sensors Based on Metal and Metal Oxide Nanostructures for Diabetes Management- A Review

et al. 2021

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There is an undeniable growing number of diabetes cases worldwide that have received widespread global attention by many pharmaceutical and clinical industries to develop better functioning glucose sensing devices. This has called for an unprecedented demand to develop highly efficient, stable, selective, and sensitive non-enzymatic glucose sensors (NEGS). Interestingly, many novel materials have shown the promising potential of directly detecting glucose in the blood and fluids. This review exclusively encompasses the electrochemical detection of glucose and its mechanism based on various metal-based materials such as cobalt (Co), nickel (Ni), zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), titanium (Ti), iridium (Ir), and rhodium (Rh). Multiple aspects of these metals and their oxides were explored vis-à-vis their performance in glucose detection. The direct glucose oxidation via metallic redox centres is explained by the chemisorption model and the incipient hydrous oxide/adatom mediator (IHOAM) model. The glucose electrooxidation reactions on the electrode surface were elucidated by equations. Furthermore, it was explored that an effective detection of glucose depends on the aspect ratio, surface morphology, active sites, structures, and catalytic activity of nanomaterials, which plays an indispensable role in designing efficient NEGS. The challenges and possible solutions for advancing NEGS have been summarized.

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“…Besides, Si anodes also suffer from dramatic volume expansion ($300%) upon lithium insertion/extraction, which induces the irreversible pulverization of active particles and the continuous collapse of the solid electrolyte interphase (SEI) lm, leading to the exfoliation of Si electrodes from current collectors, and nally resulting in poor cycling performance. [1][2][3][4][5][6] To tackle the above-mentioned formidable weaknesses, tremendous endeavors have been attempted to enhance the cycling performance of Si electrodes by designing Si alloys (Li-Si and Si-Sb), 7,8 nanosized silicon (nanowires and nanotubes) 9,10 and modifying Si with various conductive media (carbon, metal and conducting polymers). [11][12][13] Among these, a suitable method is to design a special composite structure combining Si with carbon and oxides, such as core-shell and yolk-shell structures, exhibiting the greatly improved electrochemical performance of Si electrodes in a synergistic way.…”

Section: Introductionmentioning

confidence: 99%

“…To tackle the above-mentioned formidable weaknesses, tremendous endeavors have been attempted to enhance the cycling performance of Si electrodes by designing Si alloys (Li–Si and Si–Sb), 7,8 nanosized silicon (nanowires and nanotubes) 9,10 and modifying Si with various conductive media (carbon, metal and conducting polymers). 11–13 Among these, a suitable method is to design a special composite structure combining Si with carbon and oxides, such as core–shell and yolk–shell structures, exhibiting the greatly improved electrochemical performance of Si electrodes in a synergistic way.…”

Section: Introductionmentioning

confidence: 99%

Yolk–shell-structured Si@TiN nanoparticles for high-performance lithium-ion batteries

Zhang¹,

Chen²,

Bian

et al. 2022

RSC Adv.

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Doped Silicon Nanowires for Lithium Ion Battery Anodes

Cited by 19 publications

References 31 publications

Fabrication of Si3N4@Si@Cu Thin Films by RF Sputtering as High Energy Anode Material for Li-Ion Batteries

Fabrication of Si3N4@Si@Cu Thin Films by RF Sputtering as High Energy Anode Material for Li-Ion Batteries

Recent Advances in Non-Enzymatic Glucose Sensors Based on Metal and Metal Oxide Nanostructures for Diabetes Management- A Review

Yolk–shell-structured Si@TiN nanoparticles for high-performance lithium-ion batteries

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