In this work, activated carbon nanofibers (ACNFs) and graphene-derived rice husk (GRH)/ACNF composites (gACNFs) were straightforwardly fabricated through a simple electrospinning process and were consequently activated by using a physical method. The morphological, structural, and textural properties of the resultant ACNFs and (GRH)/ACNFs were characterized by scanning electron microscopy–energy dispersive x-ray spectroscopy, transmission electron microscopy, Raman spectra, thermal gravimetric analysis, and a N₂ adsorption isotherm. From the results obtained, gACNFs exhibit better thermal stability properties than pristine ACNFs with improved carbon yield (up to 60%) as well as enhanced adsorption capacity (220 cm³/g). The results including a high specific surface area (592 m²/g) and availability of 80% micropore volumes have demonstrated that gACNFs exhibited double gas adsorption performance as compared to pristine ACNFs.

中文翻译：

---

电纺合成聚丙烯腈基活性炭纳米纤维/石墨烯（gACNFs）复合材料的制备与表征

在这项工作中，活性碳纳米纤维（ACNFs）和石墨烯衍生的稻壳（GRH）/ ACNF复合材料（gACNFs）通过简单的静电纺丝工艺直接制备，然后通过物理方法进行活化。所得ACNFs和（GRH）/ ACNFs的形态，结构和结构特性通过扫描电子显微镜-能量色散X射线光谱，透射电子显微镜，拉曼光谱，热重分析和N ₂吸附等温线表征。根据获得的结果，与原始ACNF相比，gACNF具有更好的热稳定性能，具有更高的碳收率（高达60％）和增强的吸附容量（220 cm ³ / g）。结果包括高比表面积（592 m² / g）和80％的微孔体积的可用性已证明，与原始ACNFs相比，gACNFs表现出双倍的气体吸附性能。