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Two-Dimensional Nanomaterials And Their Composites For Electrochemical Detection Of Toxic Mercury Ions In Water, Md Tawabur Rahman
Two-Dimensional Nanomaterials And Their Composites For Electrochemical Detection Of Toxic Mercury Ions In Water, Md Tawabur Rahman
Electronic Theses and Dissertations
The presence of trace amounts of mercury ion (Hg2+) in drinking water has a detrimental effect on human health. The development of an electrochemical sensor for Hg2+ detection is still challenging to obtain ultra-trace sensitivity, excellent selectivity, wide Linear Detection Ranges (LDRs), and ultra-low detection limit. This work presents an electrochemical sensor based on two-dimensional nanomaterials and their composites for the enhanced sensing of Hg2+ in water. Graphene oxide (GO)-silver nanowires (AgNWs) composite and metallic 1T phase tungsten disulfide (WS2) microflowers were utilized for the fabrication of electrochemical sensors using drop-casting. Under the optimized experimental conditions, …
Composite Gel Polymer Electrolyte For Lithium Ion Batteries, Roya Naderi
Composite Gel Polymer Electrolyte For Lithium Ion Batteries, Roya Naderi
Electronic Theses and Dissertations
Batteries have been ubiquitously utilized in enormous applications such as portable electronics, satellites, computers, medical instruments, and electric cars. The development of battery technology has been through a long journey since the 17th century, paving its way to commercialization of lithium ion batteries in 1991 by Sony. Rechargeable lithium ion batteries represent the most favorable type of batteries for portable applications due to their high energy density compared to other alkali metals. In 1997, lithium polymer batteries with solid polymer/composite electrolyte were introduced where the safety drawbacks of the liquid electrolyte were eliminated but the ionic conductivity of the batteries …