ManageChatDiscover
370533

Preparation and Characterization of Mixed Metal Oxides Coatings on Titanium Substrate

Article

Last updated: 09 Mar 2025

OverviewSimilar Items

Subjects

-

Tags

Material science

Abstract

RuO2-IrO2-TiO2 and RuO2-IrO2-TaO2-TiO2 are the most common mixed metal oxide (MMO) coatings coated on Ti substrates. MMO-coated titanium substrates serve as anodes in brine electrolyzers, which employ highly concentrated brine (33% NaCl) to generate chlorine gas and sodium hydroxide. These MMO electrodes were deposited using precursors that included ruthenium trichloride trihydrate (RuCl3.3H2O), diammonium iridium hexachloride [(NH4)2IrCl6], tantalum pentachloride (TaCl5), and titanium trichloride (TiCl3). Highly effective RuO2-IrO2-TiO2 and RuO2-IrO2-TaO2-TiO2 MMO coatings with the appropriate chemical composition were achieved. Both electrodes performed efficiently and showed high stability in the accelerated stability test, while tantalum in the coating composition enhances the MMO coating's stability.

DOI

10.21608/ejchem.2024.295803.9830

Keywords

Chlorine evolution reaction (CER), Oxygen evolution reaction (OER), RuO2-IrO2-TiO2, and RuO2-IrO2-TaO2-TiO2 MMO coatings

Authors

First Name

A.B.

Last Name

Abdel-Aziz

MiddleName

-

Affiliation

October High Institute for Engineering & Technology, Giza 12596, Egypt.

Email

abdelazezbadawy3@gmail.com

City

-

Orcid

0000-0001-6289-8045

First Name

Samah M.

Last Name

Bekhit

MiddleName

-

Affiliation

Central Metallurgical Research and Development Institute (CMRDI), Cairo 12422, Egypt.

Email

samah-mamdouh@hotmail.com

City

Cairo

Orcid

-

First Name

R.M.

Last Name

El Nashar

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt.

Email

rasha-elnashar@hotmail.com

City

-

Orcid

-

First Name

F. El-Taib

Last Name

Heakal

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt.

Email

fakeyha.heakal@hotmail.com

City

-

Orcid

-

First Name

I.M.

Last Name

Ghayad

MiddleName

-

Affiliation

Central Metallurgical Research and Development Institute (CMRDI), Cairo 12422, Egypt.

Email

ighayad@yahoo.com

City

Cairo

Orcid

-

Volume

68

Article Issue

3

Related Issue

53789

Issue Date

2025-03-01

Receive Date

2024-06-08

Publish Date

2025-03-01

Page Start

399

Page End

407

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 68_Issue 3_Pages 399-407.pdf

PDF . 595.4kB

Link

https://ejchem.journals.ekb.eg/article_370533.html

Detail API

http://journals.ekb.eg?_action=service&article_code=370533

Order

370,533

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Preparation and Characterization of Mixed Metal Oxides Coatings on Titanium Substrate

Details

Type

Article

Created At

15 Feb 2025