Effect of pore structures on the electrochemical performance of porous silicon synthesized from magnesiothermic reduction of biosilica

Liu, Shuhe; Liu, Bin; Yao, Yaochun; Dong, Peng; Zhao, Shuchun

doi:10.1007/s11595-016-1476-7

Cited by 8 publications

(3 citation statements)

References 20 publications

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“…This movement is uneven, and each particle is moving randomly. If only the average performance of all particles is considered, the momentum and continuous action equation of particles can be obtained as [44]:…”

Section: Damage Analysis Of Internal Structure Of Rock and Soilmentioning

confidence: 99%

Permeability Effect and Nonlinear Coupling Characteristics of Rock–Soil Interaction with Water

Liang,

Wang

2024

Processes

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The seepage effect of rock and soil in the process of encountering water follows a nonlinear coupling law between water and rock. According to the permeability of rock and soil during softening with water, changes in particles in rock and soil are related to permeability mechanisms. Based on the assumption of connection between particles in rock and soil, changes in particles before and after water infiltration, the mechanism of water–rock interaction, and the damage to rock and soil are analyzed herein. Combined with fractal theory and percolation theory, the random failure characteristics and nonlinear behavior of water in rock and soil are studied. At the same time, with the help of Fluent 17.0 software, the seepage process of rock samples in water is numerically simulated and analyzed. Taking the permeability coefficient of rock samples, the mass flow rate of water, and the internal pore water pressure of rock samples as tracking objects, it is found that there are obvious nonlinear characteristics in the process of water–rock interaction. The seepage–stress coupling between water and rock forms negative resistance to water seepage. The water infiltration is a slow and then accelerated process and tends to be stable. Research has shown that the coupling effect of seepage between water and rock increases the damage inside the rock and soil, and its permeability fluctuates randomly at different time steps. This feature is a common manifestation of fractal properties and percolation within rock and soil particles. At the same time, there is a non-equilibrium variation law of pore water pressure inside the rock and soil. This leads to a continuous strengthening of the seepage effect, reaching a stable state. The results of this study are crucial. It not only reveals the mechanism of interaction between water and rock but also correlates the degree of internal damage in rock and soil based on the seepage characteristics between water and rock. The conclusions can provide some reference value for relevant construction methods in the analysis of the formation of water flow characteristics, the prevention of rock slope seepage disasters, and the control of water inrush in tunnel excavation.

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Section: Damage Analysis Of Internal Structure Of Rock and Soilmentioning

confidence: 99%

Permeability Effect and Nonlinear Coupling Characteristics of Rock–Soil Interaction with Water

Liang,

Wang

2024

Processes

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“…RH‐silica can be obtained by either the calcination of RHs in air, or the acid‐catalyzed sol–gel method . According to the specific experimental conditions (e.g., different synthesis methods, calcination temperatures, pH value of the sol), meso‐ and macroporous silicon NSs with various particle sizes can be prepared ,. The purity and yield of the synthesized RH‐silicon are strongly dependent on the calcination temperature and reduction efficiency .…”

Section: Nanostructures From Rhsmentioning

confidence: 99%

Versatile Nanostructures from Rice Husk Biomass for Energy Applications

et al. 2018

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Converting biomass into valuable products has great benefits in terms of both economic and environmental considerations, and has attracted considerable attention in recent years. Rice husk biomass was initially utilized to produce bulk materials for conventional applications while a variety of advanced nanostructures (NSs) have been fabricated over the past few years. In addition to their low cost and environmental friendliness, RH-derived NSs (RH-NSs) exhibit versatile properties, which are promising for broad applications in various fields. In this Review, we summarize the latest research on RH-NSs, covering their design, fabrication, properties, and applications in the modern energy field. Based on the unique structure and components of RHs, a series of carbon/silicon-based novel NSs with outstanding performances have been exploited, which are difficult to be synthesized using conventional chemical reagents. We also discuss perspective uses of RH-NSs on the basis of the current research progress.

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“…In Abhängigkeit von den speziellen experimentellen Bedingungen (z. B. unterschiedliche Synthesemethoden, Kalzinierungstemperaturen, pH‐Wert des Sols) können meso‐ und makroporöse Silicium‐Nanostrukturen mit unterschiedlichen Partikelgrößen hergestellt werden ,. Reinheit und Ausbeute des synthetisierten RH‐Siliciums sind stark abhängig von der Kalzinierungstemperatur und der Reduktionseffizienz…”

Section: Nanostrukturen Aus Reishüllenunclassified

Vielfältige Nanostrukturen aus Reishülsen‐Biomasse für Energieanwendungen

Wang

Smith

Wang³

et al. 2018

Angewandte Chemie

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Die Umwandlung von Biomasse in hochwertige Produkte hat in jüngster Zeit beträchtliche Aufmerksamkeit erhalten. Biomasse aus Reishülsen (“rice husks”, RH) wurde ursprünglich dazu verwendet, Schüttgüter für konventionelle Anwendungen herzustellen, während in den letzten Jahren daraus eine Vielzahl von modernen Nanostrukturen (NS) hergestellt wurden. RH‐basierte Nanostrukturen (RH‐NS) sind kostengünstig und umweltfreundlich, und sie haben viele Eigenschaften, die für Anwendungen in verschiedenen Bereichen vielversprechend sind. Basierend auf der einzigartigen Struktur und den Komponenten der RH wurde eine Reihe von neuartigen, auf Kohlenstoff/Silicium basierenden NS mit herausragenden Eigenschaften erschlossen, die mit herkömmlichen chemischen Reagenzien nur schwer zu synthetisieren sind. Hier werden neueste Forschungsergebnisse zu RH‐NS zusammengefasst, die sich auf Design, Herstellung, Eigenschaften und Anwendungen im modernen Energiebereich beziehen.

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Effect of pore structures on the electrochemical performance of porous silicon synthesized from magnesiothermic reduction of biosilica

Cited by 8 publications

References 20 publications

Permeability Effect and Nonlinear Coupling Characteristics of Rock–Soil Interaction with Water

Permeability Effect and Nonlinear Coupling Characteristics of Rock–Soil Interaction with Water

Versatile Nanostructures from Rice Husk Biomass for Energy Applications

Vielfältige Nanostrukturen aus Reishülsen‐Biomasse für Energieanwendungen

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