KaydedilenlerDerginizi ekleyin

Dergiler / Turkish Journal of Chemistry / 2005 / Cilt: 29 - Sayı: 6

Catalytic Oxidation Properties and Characterization of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) Mixed Oxides

Catalytic Oxidation Properties and Characterization of LaSrCo0.9B0 0.1O4(B0 = Mn, Fe, Ni, Cu) Mixed Oxides

Laitao LUO
Guangxin SHAO
Zhanhui DUAN
Sayfa
597–605
Yayın Tarihi
2005-06-01
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Further investigation shows that the apparent activation energy of LaSrCo0.9Ni0.1O4 towards CO oxidation is lower than that of LaSrCoO4.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Using a polyacrylamide gel method, a series of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) mixed oxides were prepared and their catalytic activity was studied with CO and C3H8 oxidations as a testing reaction.
📊
Temel Bulgular & Veri:The results show that the specific effects of B' ions on CO and C3H8 oxidations depend on their category.
💡
Sonuç & Katkı:Further investigation shows that the apparent activation energy of LaSrCo0.9Ni0.1O4 towards CO oxidation is lower than that of LaSrCoO4.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:B-site adulteration · catalytic oxidation · Co-based mixed oxides

Özet

Using a polyacrylamide gel method, a series of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) mixed oxides were prepared and their catalytic activity was studied with CO and C3H8 oxidations as a testing reaction. The results show that the specific effects of B' ions on CO and C3H8 oxidations depend on their category. In comparison to LaSrCoO4 catalyst, the activity of LaSrCo0.9Ni0.1O4 catalyst for CO and C3H8 oxidations is higher, while only lower activity is obtained for Mn, Fe or Cu-doped catalysts. The information derived from TPD, XRD and iodometry experiments shows that the increase in oxidation activity of LaSrCo0.9Ni0.1O4 catalyst towards CO and C3H8 oxidation can be related to the increases in O2-adsorption quantity, CO2-desorption quantity, oxygen vacancies and lattice distortion due to the adulteration of nickel. Further investigation shows that the apparent activation energy of LaSrCo0.9Ni0.1O4 towards CO oxidation is lower than that of LaSrCoO4.

Abstract

Using a polyacrylamide gel method, a series of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) mixed oxides were prepared and their catalytic activity was studied with CO and C3H8 oxidations as a testing reaction. The results show that the specific effects of B' ions on CO and C3H8 oxidations depend on their category. In comparison to LaSrCoO4 catalyst, the activity of LaSrCo0.9Ni0.1O4 catalyst for CO and C3H8 oxidations is higher, while only lower activity is obtained for Mn, Fe or Cu-doped catalysts. The information derived from TPD, XRD and iodometry experiments shows that the increase in oxidation activity of LaSrCo0.9Ni0.1O4 catalyst towards CO and C3H8 oxidation can be related to the increases in O2-adsorption quantity, CO2-desorption quantity, oxygen vacancies and lattice distortion due to the adulteration of nickel. Further investigation shows that the apparent activation energy of LaSrCo0.9Ni0.1O4 towards CO oxidation is lower than that of LaSrCoO4.

🔖

Bu Makaleye Atıf Yap

LUO, L., SHAO, G., DUAN, Z. (2005). Catalytic Oxidation Properties and Characterization of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) Mixed Oxides. Turkish Journal of Chemistry, Cilt: 29 - Sayı: 6, 597–605. https://ajindex.com/articles/227797

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (20)

  1. N. Guilhaume, S.D. Peter and M. Primet, Appl. Catal. B. 10, 325-344 (1996).
  2. S.D. Peter, E. Garbowski, N. Guilhaume, V. Perrichon and M. Primet, Catal. Lett. 54, 79-84 (1998).
  3. Y. Liu, X.G. Yang, Y.M. Liu and Y. Wu, Acta Phys.-chim. Sin. 15, 506-511 (1999).
  4. L.Z. Gao, Q.S. Li, Y. Wu and Z.L. Yu, Acta Chim. Sin. 54, 234-241 (1996).
  5. Z. Zhao, X.G. Yang and Y. Wu, Acta Phys.-chim. Sin. 13, 344-350 (1997).
  6. A.K. Ladavos and P.J. Pomonis, Appl. Catal. A, 165, 73-85 (1997).
  7. H. Lou, H.Y. Zhen, J.Y. Yang, Z.Q. Yao, X. Yu, S.B. Du and F.T. Ma, Chem. J. Chinese U. 16, 107-110 (1995).
  8. Y. Wu, Z. Zhao, Y. Liu and X.G. Yang, J. Mol. Catal. A Chem. 155, 89-100 (2000).
  9. Z. Zhao, X. G. Yang, Y. Liu and Y. Wu, J. Rare Earth 16, 325-331 (1998).
  10. X.M. Yang, L.T. Luo and H. Zhong, React. Kinet. Catal. Lett. 81, 219-227 (2004).
  11. T.X. Cheng, X.G. Yang and Y. Wu, Sci. China Ser. B, 38, 1025-1037 (1995).
  12. D.C. Harris, T.A. Hewton, J. Solid State Chem. 69, 182-191 (1987).
  13. H. Lou, J.G. Liu, X.J. Liu and F.T. Ma, J. Rare Earth 19, 324-328 (2001).
  14. D. Ganguli, J. Solid State Chem. 30, 353-356 (1979).
  15. H. Lou, Y.Z. Xu, P. Cheng, Y.P. Ge, G.L. Lu and F.T. Ma, Chinese J. Inorg. Chem. 15, 158-164 (1999).
  16. Y. Tokura, H. Takagi and S. Uchida, Nature 337, 345 (1989).
  17. X.M. Yang, L.T. Luo and H. Zhong, Appl. Catal. A, 272, 299-303 (2004).
  18. L.Z. Gao, B.L. Dong, Q.S. Li, X. Lu, Z.L. Yu and Y. Wu, J. Fuel Chem. Tech. 22, 113-118 (1994).
  19. X.Z. Qi, Z. Ma and S.W. Wang, Chem. Industry Engi. 17, 358-361 (2000).
  20. Z. Zhao, X.G. Yang and Y. Wu, Appl. Catal. B Environmental 8, 281-297 (1996).