Publications by authors named "D N Andreeva"
Article Synopsis
- The study focuses on creating a lightweight and effective acoustic diaphragm using a combination of polyacrylonitrile (PAN) and graphene oxide (GO) through self-assembly techniques.
- Spray coating is used for a cost-effective and scalable fabrication process, leading to large curved diaphragms.
- The new PAN/GO diaphragm is significantly thinner and lighter than commercial options, making it ideal for applications requiring reduced weight and size, like portable audio devices.
Electronic waste (e-waste) contains substantial quantities of valuable precious metals, particularly gold (Au). However, inefficient metal recovery leads to these precious metals being discarded in landfills, causing significant water and environmental contamination. This study introduces a two-dimensional (2D) electrode with a layered graphene oxide membrane functionalized by chitosan (GO/CS).
View Article and Find Full Text PDFThis work presents an interdisciplinary approach combining materials science, ultrasonication, artistic expression, and curatorial practice to develop and investigate novel composites. The focus of the approach is incorporating graphene oxide (GO) into kaolin and exploring its effects on material properties. The composites were prepared with varying GO concentrations and sonication times, and their mechanical, thermal, and morphological characteristics were evaluated.
View Article and Find Full Text PDFThe extraction of gold (Au) from electronic waste (e-waste) has both environmental impact and inherent value. Improper e-waste disposal poses environmental and health risks, entailing substantial remediation and healthcare costs. Large efforts are applied for the recovery of Au from e-waste using complex processes which include the dissolution of Au, its adsorption in an ionic state and succeeding reduction to metallic Au.
View Article and Find Full Text PDFArticle Synopsis
- The study focuses on poly(benzodifurandione) (PBDF), a self-doped n-doped conducting polymer, which shows impressive specific capacitance and excellent cycling stability in aqueous supercapacitors.
- Using reduced graphene oxide (rGO) can further improve PBDF's performance, leading to high-rate capabilities and long-lasting efficiency in various energy storage configurations.