SavedAdd your journal

Journals / Turkish Journal of Chemistry / 2005 / Cilt: 29 - Sayı: 3

The Effect of Metal Loading on Structural Characteristics and Low Temperature CO Oxidation Activity of Coprecipitated Co/Al2O3

Şeyma ÖZKARA
Ayşe Nilgün AKIN
Zülal MISIRLI
Ahmet Erhan AKSOYLU
Pages
219–224
Publication Date
2005-03-01
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results indicated the participation of cobalt in the Co-Al skeleton for all coprecipitated samples.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The effect of metal loading on structural properties and CO oxidation activity of coprecipitated Co/Al2O3 catalysts was investigated.
📊
Key Findings & Data:The results indicated the participation of cobalt in the Co-Al skeleton for all coprecipitated samples.
💡
Conclusion & Impact:Environmental-SEM-EDXS studies showed that at loadings higher than ca. 15 wt.-%, cobalt formed layer-by-layer clusters on the surface; 16.8 wt.-% Co/Al2O3 displayed the highest activity and stability in CO oxidation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Catalysis · Catalyst activation · Environment

Abstract

The effect of metal loading on structural properties and CO oxidation activity of coprecipitated Co/Al2O3 catalysts was investigated. The results indicated the participation of cobalt in the Co-Al skeleton for all coprecipitated samples. Environmental-SEM-EDXS studies showed that at loadings higher than ca. 15 wt.-%, cobalt formed layer-by-layer clusters on the surface; 16.8 wt.-% Co/Al2O3 displayed the highest activity and stability in CO oxidation.

Özet

The effect of metal loading on structural properties and CO oxidation activity of coprecipitated Co/Al2O3 catalysts was investigated. The results indicated the participation of cobalt in the Co-Al skeleton for all coprecipitated samples. Environmental-SEM-EDXS studies showed that at loadings higher than ca. 15 wt.-%, cobalt formed layer-by-layer clusters on the surface; 16.8 wt.-% Co/Al2O3 displayed the highest activity and stability in CO oxidation.

🔖

Cite This Article

ÖZKARA, Ş., AKIN, A. N., MISIRLI, Z., AKSOYLU, A. E. (2005). The Effect of Metal Loading on Structural Characteristics and Low Temperature CO Oxidation Activity of Coprecipitated Co/Al2O3. Turkish Journal of Chemistry, Cilt: 29 - Sayı: 3, 219–224. https://ajindex.com/articles/185412

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (7)

  1. S¸. ¨Ozkara and A.E. Aksoylu, Appl. Catal. A 251, 75-83 (2003). G. G¨urda˘g and T. Hahn, Appl. Catal. A 192, 51-55 (2000).
  2. M. Skoglundh, A. T¨orncrona, E. Fridell, E. Jobson and P. Thorm¨ahlen, Appl. Catal. B 14, 131-145 (1997).
  3. F. Grillo, M.M. Natile and A. Glisenti, Appl. Catal. B 48, 267-274 (2004).
  4. Y.J. Mergler, J. Hoebink and B.E. Nieuwenhuys, B. E., J. Catal. 167, 305-313 (1997). P. Thorm¨ahlen, M. Skoglundh, E. Fridell and B. Andersson, J. Catal. 188, 300-310 (1999).
  5. A.N. Akın, A.E. Aksoylu and Z.˙I. ¨Onsan, React. Kinet. Catal. Lett. 66, 393-399 (1999). A.N. Akın and Z.˙I. ¨Onsan, J. Chem. Technol. Biotechnol. 69, 337-344 (1997). A.N. Akın and Z.˙I. ¨Onsan, J. Chem. Technol. Biotechnol. 70, 304-310 (1997).
  6. A.E. Aksoylu, A.N. Akın, Z.˙I. ¨Onsan and D.L. Trimm, Appl. Catal. A 145, 185-193 (1996).
  7. J. van de Loosdrecht, M. van der Haar, A. M. van der Kraan, A. J. van Dillen and J.W. Geus, Appl. Catal. A 150, 365-376 (1997).