Abstract
Gold coatings on titanium substrates have been prepared (i) by spraying solutions of Ti(IV) and Au(III) followed by thermal decomposition or (ii) by the electrodeposition or vacuum deposition of gold onto pre-formed oxide layers. These coatings have been characterized using scanning electron microscopy, energy-dispersive X-ray analysis and voltammetry and it is shown that the I—E responses for oxygen reduction are markedly different. For the preparation of hydrogen peroxide, a cathode made by electrodeposition of a layer of gold (about 4 μm) onto thermally oxidized titanium showed the same performance as bulk gold. This coating was also stable and formed a very strong bond with the substrate. The coatings of mixed TiAu oxides show complex behaviour.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
