-
- Home
- Journals
- Bulletin of Materials Science
- Volume 45
- All articles
-
Highly facile Co$^{2+}$ and Mn$^{3+}$ species supported on hydroxyapatite catalyst for carbon monoxide oxidation at a lower temperature
Volume 45 Published: 23 June 2022 Article ID 0111
-
-
Fulltext
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/boms/045/0111 -
Keywords
Active component modification ;bimetallic Mn-Co ;hydroxyapatite ;low activation energy ;low-temperature CO oxidation ;successive deposition. -
Abstract
The series of bimetallic Co and Mn supported on hydroxyapatite (HAp) catalysts were prepared by successive deposition method and examined for CO oxidation. The catalysts are characterized in detail and correlated to oxidation activity. The X-ray diffraction, X-ray photoelectron spectroscopy and temperature-programmed reduction characterization showed the presence of more facile Co$^{2+}$, Mn$^{3+}$ and adsorbed oxygen. The attenuated total reflection-Fourier transform infrared demonstrated the adsorption of water on active sites of catalyst was responsible for the shifting of activity towards higher temperatures. The Co$_{0.4}$/Mn$_{0.1}$ /HAp catalyst showed lower activation energy for CO oxidation compared to the monometallic catalysts. Interaction between Mn, Co and HAp could be responsible for the existence of Co$^{2+}$, Mn$^{3+}$ and adsorbed oxygen, which are active species for CO oxidation.
-
Author Affiliations
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400019, India
-
Dates
- Published
- 23 June 2022
- Manuscript received
- 10 September 2021
- Accepted
- 3 February 2022
- Final version published online
- 23 June 2022
-
Supplementary Material
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-