Changes in Pt-Rh catalysts in the working environment
Abstract
The surface reconstruction on rhodium-platinum catalyst gauzes has been examined using the scanning electron microscope techniques. The nucleation and growth of large cage-like features, developed on the gauze surfaces during operation in the ammonia oxidation process, were studied in detail. It is concluded that a vapor phase mechanism involving transport of platinum oxide is responsible for the observed reaction, and the reason why this process operates only over a limited range of temperature and pressure is explained. Some comments are also made on the related reconstruction observed on gauzes, used during the production of hydrogen cyanide by the Andrussow process.
Keywords:
platinum / platinum catalyst gauzeSource:
Mining and Metallurgy Engineering Bor, 2015, 4, 105-110Publisher:
- Institut za rudarstvo i metalurgiju, Bor
Funding / projects:
Institution/Community
Inovacioni centarTY - JOUR AU - Trumić, Biserka AU - Ivanović, Aleksandra AU - Dmitrijević, Silvana AU - Dimitrijević, Stevan PY - 2015 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2911 AB - The surface reconstruction on rhodium-platinum catalyst gauzes has been examined using the scanning electron microscope techniques. The nucleation and growth of large cage-like features, developed on the gauze surfaces during operation in the ammonia oxidation process, were studied in detail. It is concluded that a vapor phase mechanism involving transport of platinum oxide is responsible for the observed reaction, and the reason why this process operates only over a limited range of temperature and pressure is explained. Some comments are also made on the related reconstruction observed on gauzes, used during the production of hydrogen cyanide by the Andrussow process. PB - Institut za rudarstvo i metalurgiju, Bor T2 - Mining and Metallurgy Engineering Bor T1 - Changes in Pt-Rh catalysts in the working environment EP - 110 IS - 4 SP - 105 DO - 10.5937/MMEB1504105T ER -
@article{ author = "Trumić, Biserka and Ivanović, Aleksandra and Dmitrijević, Silvana and Dimitrijević, Stevan", year = "2015", abstract = "The surface reconstruction on rhodium-platinum catalyst gauzes has been examined using the scanning electron microscope techniques. The nucleation and growth of large cage-like features, developed on the gauze surfaces during operation in the ammonia oxidation process, were studied in detail. It is concluded that a vapor phase mechanism involving transport of platinum oxide is responsible for the observed reaction, and the reason why this process operates only over a limited range of temperature and pressure is explained. Some comments are also made on the related reconstruction observed on gauzes, used during the production of hydrogen cyanide by the Andrussow process.", publisher = "Institut za rudarstvo i metalurgiju, Bor", journal = "Mining and Metallurgy Engineering Bor", title = "Changes in Pt-Rh catalysts in the working environment", pages = "110-105", number = "4", doi = "10.5937/MMEB1504105T" }
Trumić, B., Ivanović, A., Dmitrijević, S.,& Dimitrijević, S.. (2015). Changes in Pt-Rh catalysts in the working environment. in Mining and Metallurgy Engineering Bor Institut za rudarstvo i metalurgiju, Bor.(4), 105-110. https://doi.org/10.5937/MMEB1504105T
Trumić B, Ivanović A, Dmitrijević S, Dimitrijević S. Changes in Pt-Rh catalysts in the working environment. in Mining and Metallurgy Engineering Bor. 2015;(4):105-110. doi:10.5937/MMEB1504105T .
Trumić, Biserka, Ivanović, Aleksandra, Dmitrijević, Silvana, Dimitrijević, Stevan, "Changes in Pt-Rh catalysts in the working environment" in Mining and Metallurgy Engineering Bor, no. 4 (2015):105-110, https://doi.org/10.5937/MMEB1504105T . .