Versatile Nanostructures from Rice Husk Biomass for Energy Applications

Abstract

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.

Direct Conversion of Rice Husks to Nanostructured SiC/C for CO2 Photoreduction

“…[ 11–14 ] Alternatively, carbonaceous materials can be harvested through high‐temperature pyrolysis of RHs followed by multistep wet chemical treatments for purification. [ 15–16 ]…”

Preparation of Rice Husk-Based C/SiO2 Composites and Their Performance as Anode Materials in Lithium Ion Batteries

“…Simultaneously, the C is the sp 2 hybridized form. 24 As shown in the XRD, when the temperature increases, the sp 2 hybridized carbon in the functional group forms a honeycomb structure with reduced content. This peak at 1108 cm À1 is caused mainly by the asymmetric and symmetric stretching of Si-O-C and Si-O-Si bonds.…”

Recent progress on biomass‐derived ecomaterials toward advanced rechargeable lithium batteries

“…On the other hand, raw biomass usually possesses intrinsic specific porous structures and thus can be used as a natural template to orient the fabrication of carbon materials with desired functionalities and structures . Additionally, the features of biomass materials in green and circular economy, due to their superiorities of low‐cost, renewability, biodegradability, and environmental benefits, can also accord well with the sustainable development path of coordinating nature, economy, and society …”

“…[27][28][29] Additionally, the features of biomass materials in green and circular economy, due to their superiorities of lowcost, renewability, biodegradability, and environmental benefits, can also accord well with the sustainable development path of coordinating nature, economy, and society. [30][31][32][33] In this contribution, we highlight how biomassderived materials (eg, natural biological polymers and bio-derived oriented carbonaceous materials) with special properties improve the interfacial and bulk problems in lithium batteries, as well as promote the creation of energy devices from alternative, abundant, and renewable sources for increasing their overall sustainability. An appropriate guideline of the combination between sustainable natural materials and protective strategies are provided, highlighted especially for advanced Li batteries.…”