The Library
Engineered diamond devices for next generation applications
Tools
Tully, Joshua J. (2022) Engineered diamond devices for next generation applications. PhD thesis, University of Warwick.
|
PDF
WRAP_Theses_Tully_2022.pdf - Submitted Version - Requires a PDF viewer. Download (6Mb) | Preview |
Official URL: http://webcat.warwick.ac.uk/record=b3862228
Abstract
Doped and undoped lab grown diamond is rapidly finding applications in a wide variety of fields from quantum computing to electrochemical sensing. In this thesis four different applications of lab grown diamond are investigated with a view to improving or understanding their fabrication or use.
In Chapter 3, the electrochemical etch step for producing thin-diamond membranes is investigated. Sub-micrometre single crystal diamond membranes are of huge importance for next generation optical, quantum and electronic device applications. In this work, a new method of non-contact electrochemical etching is presented which uses high conductivity, high concentration, fully dissociated aqueous electrolytes.
In Chapter 4, the factors affecting the corrosion of BDD anodes in electrochemical advanced oxidation systems are investigated. These advanced oxidation systems show great promise in the treatment of harmful or persistent organic pollutants. In this chapter a novel and rapid method of directly measuring electrode corrosion is demonstrated and used to test the effect of several solution and operational parameters on the rate of BDD corrosion.
Chapter 5 concerns the design and optimisation of a BDD electrode for electrochemical dissolved ozone generation. Electrochemical ozone production from water is an attractive, green technology for disinfection. Boron doped diamond electrodes, grown by chemical vapor deposition, have been widely adopted for ozone production due to their wide anodic window in water and excellent chemical and electrochemical stability. The affect of geometry and nondiamond carbon content is investigated to optimise the efficiency of ozone production.
The aim of Chapter 6 is the development of a low-cost DIY rotating ring disk electrode which can be assembled easily. Two custom electrodes are fabricated by this method with boron doped diamond rings and disks. The effectiveness of these electrodes in studying the importance of surface incorporated non-diamond carbon on H2O2 generation via oxygen reduction is demonstrated.
Item Type: | Thesis (PhD) | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
||||
Library of Congress Subject Headings (LCSH): | Diamonds, Artificial, Diamonds, Artificial -- Industrial applications, Electrodes, Anodes, Chemical vapor deposition, Boron, Electrochemistry | ||||
Official Date: | April 2022 | ||||
Dates: |
|
||||
Institution: | University of Warwick | ||||
Theses Department: | Department of Chemistry | ||||
Thesis Type: | PhD | ||||
Publication Status: | Unpublished | ||||
Supervisor(s)/Advisor: | Macpherson, Julie V. | ||||
Format of File: | |||||
Extent: | xxiii, 155 pages : illustrations (colour), charts (colour) | ||||
Language: | eng |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year