Reactivity of rice husk-derived lithium silicates followed by in situ Raman spectroscopy

A Si@SiOC@Li2Si2O5 anode derived from pyrolysis of polysiloxane enables lithium-ion batteries to exhibit high electrochemical performance and high initial coulombic efficiency

“…43 The weak peak at 585 cm −1 in the Raman spectrogram of SSL corresponds to Li 2 Si 2 O 5 , which conrms the formation of oligocrystalline Li 2 Si 2 O 5 . 64 Micro-morphologies of pre-SiOC, SiOC, SSS, and SSL were studied as shown in Fig. 2.…”

“…43 The weak peak at 585 cm −1 in the Raman spectrogram of SSL corresponds to Li 2 Si 2 O 5 , which confirms the formation of oligocrystalline Li 2 Si 2 O 5 . 64…”

A coke-resistant catalyst for the dry reforming of methane based on Ni nanoparticles confined within rice husk-derived mesoporous materials

“…The Raman spectra were recorded with a Horiba-Jobin-Yvon spectrometer. The XPS measurements were carried out using a multi-technique system (SPECS) [20]. The samples were reduced in H 2 at 873 K in a tubular quartz reactor and then, at 673 K during 30 min in the load-lock XPS chamber.…”

“…Rice husk ash (RHA) is an industrial waste with high silicon content. In addition to its potential as a low-cost precursor, its use implies an approach to process integration, since this material is mainly obtained after rice husk burning for power generation [19,20]. In turn, RHA silicon could be converted to a variety of porous silica frameworks, which may have applications as sorbents for gases and liquids, and also as supports for metal catalysts [21][22][23][24].…”