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Hace 1 día · In this review, we classify silicon oxides/carbon composites according to the variation of carbon sources, and systematically review the most recent and representative developments in this area. The review ends with a discussion of future directions and perspectives, with a view to rational design and scalable construction of advanced silicon oxides/carbon composites and electrode systems for ...
Hace 3 días · Consequently, the electrochemical properties of the obtained carbon@silicon composite with root-nodule structure as anode for lithium-ion batteries are remarkably improved with a high capacity of up to 1, 107 mAh g-1 at 0.1 A g-1 and a considerable cycle performance of 450 mAh g-1 after 400 cycles.
Hace 4 días · The synthesis process for the porous silicon-carbon composites (pSi@V@C) is depicted in Fig. 5, aligning with the methodology described in the material synthesis segment of Section 2.1. XRD analysis presented in Fig. 6 (a) identifies distinct peaks at angles of 28°, 47°, 56°, 69°, and 76°.
Hace 3 días · Five nonmetallic elements—hydrogen, carbon, nitrogen, oxygen, and silicon—make up the bulk of Earth's oceans, atmosphere, biosphere, and crust. The diverse properties of nonmetals enable a range of natural and technological uses.
Hace 2 días · Silicon carbide, a semiconducting material, has gained importance in the fields of ceramics, electronics, and renewable energy due to its remarkable hardness and resistance. In this study, we delve into the impact of nuclear quantum motion, or vibrational mode quantization, on the structural and elastic properties of 3 𝐶 3C 3 italic_C -SiC.
Hace 2 días · Hydrogenated amorphous silicon carbide (a-Si x C 1−x:H) has attracted significant research interest due to its outstanding properties, making it a versatile and promising material for various applications. 1,2,3,4,5 In particular, thin films of a-Si x C 1−x:H are widely used as passivation layers in photovoltaic applications 6 and in optoelectronic devices. 7 Furthermore, its wide bandgap ...
Hace 5 días · Among silicon-based anode family for Li-ion battery technology, SiO x, a nonstoichiometric silicon suboxide holds the potential for significant near-term commercial impact.In this context, this study mainly focuses on demonstrating an innovative SiO x @C anode design that adopts a pre-lithiation strategy based on in situ pyrolysis of Li-salt of silsesquioxane trisilanolate without the need for ...
