Aberration-corrected STEM investigation of the M2 phase of MoVNbTeO selective oxidation catalyst

Journal of Electron Microscopy

Volumn 58, Issue 3, 2009, Pages 193-198

  Blom, Douglas A ^a   Pyrz, William D ^b   Vogt, Tom ^a   Buttrey, Douglas J ^b  

^a UNIVERSITY OF SOUTH CAROLINA   (United States)

^b University of Delaware   (United States)

Author keywords

Aberration corrected STEM; M2; MoVTeNbO; Propane (amm)oxidiation

Indexed keywords

CATALYSTS; MOLYBDENUM COMPOUNDS; TELLURIUM COMPOUNDS; VANADIUM COMPOUNDS;

ABERRATION-CORRECTED STEM; HAADF IMAGING; IMAGES SIMULATIONS; M2; PROPANE (AMM)OXIDIATION; SELECTIVE OXIDATION CATALYSTS;

NIOBIUM COMPOUNDS;

EID: 68349123532     PISSN: 00220744     EISSN: 14779986     Source Type: Journal    
DOI: 10.1093/jmicro/dfn025     Document Type: Article

References (22)

1. Grasselli R K (2002) Fundamental principles of selective heterogeneous oxidation catalysis. Top. Catal. 21: 79-88.
2. Ushikubo T, Nakamura H, Koyasu Y, and Wajiki S (1995) US Patent 5 380 933.
3. Ushikubo T, Nakamura H, Koyasu Y, and Wajiki S (1997) EP Patent 608 838 B 1.
4. Ushikubo T, Oshima K, Kayou A, Vaarkamp M, and Hatano M (1997) Ammoxidation of propane over catalysts comprising mixed oxides of Mo and V. J. Catal. 169: 394-396.
5. DeSanto P Jr, Buttrey D J, Grasselli R K, Lugmair C G, Volpe Jr A E, Toby B H, and Vogt T (2004) Structural aspects of the M1 and M2 phases in MoVNbTeO propane ammoxidation catalysts. Z. Kristogr. 219 152-165.
6. x. Top. Catal. 23: 5-22.
7. Watanabe N and Ueda W (2006) Comparative study on the catalytic performce on single-phase Mo-V-O-based metal oxide catalysts in propane ammoxidation to acrylonitrile. Ind. Eng. Chem. Res. 45: 607-614.
8. DeSanto P Jr, Buttrey D J, Grasselli R K, Lugmair C G, Volpe A F, Toby B H, and Vogt T (2003) Structural characterization of the orthorhombic phase M1 in MoVNbTeO propane ammoxidation catalyst Top. Catal. 23: 23-38.
9. x selective oxidation catalysts. Top. Catal. 38: 51-58.
10. Ueda W, Chen N F, and Oshihara K (1999) Hydrothermal synthesis of Mo-V-M-O complex metal oxide catalysts active for partial oxidation of ethane. Chem. Commun. 517-518.
11. Ueda W and Oshihara K (2000) Selective oxidation of light alkanes over hydrothermally synthesized Mo-V-M-O (M-Al, Ga, Bi, Sb, and Te) oxide catalysts. App. Catal. A. 200: 135-143.
12. Holmberg J, Grasselli R K, and Andersson A (2003) A study of the functionalities of the phase in Mo-V-Nb-Te oxides for propane ammoxidation. Top. Catal. 23: 55-63.
13. Holmberg J, Grasselli R K, and Andersson A (2004) Catalytic behaviour of M1, M2 and M1/M2 physical mixtures of the Mo-V-Ne-Te-oxide system in propane and propene ammoxiation. Appl. Cat. A 270: 121-134.
14. Grasselli R K, Buttrey D J, Burrington J D, Andersson A, Holmberg J, Ueda W, Kubo J, Lugmair C G, and Volpe Jr A F (2006) Active centers, catalytic behavior, symbiosis and redox properties of MoV(Nb,Ta)TeO ammoxidation catalysts. Top. Catal. 38: 7-16.
15. Lopez Nieto J M, Botella P, Solsona B, and Oliver J M (2003) The selective oxidation of propane on Mo-V-Te-Nb-O catalysts: the influence of Te-precursor Catal. Today 81: 87-94.
16. Guliants V V, Bhandari R, Swaminathan B, Vasudevan V K, Brongersma H H, Knoester A, Gaffney A M, and Han S (2005) A study of the surface region of the Mo-V-Te-O catalysts for propane oxidationto acrylic acid J. Phys. Chem. B 109: 10234-10242.
17. Pyrz W D, Blom D A, Vogt T, and Buttrey D J (2008) Direct imaging of the MoVTeNbO M1 phase using an aberration-corrected high-resolution scanning transmission electron microscope Angew. Chem. Int. Ed.47: 2788-2791.
18. Pyrz W D, Blom D A, Shiju N R, Guliants V V, Vogt T, and Buttrey D J (2008) Using aberration-corrected STEM imaging to explore chemical and structural variations in the M1 phase of the MoVNbTeO oxidation catalyst. J. Phys. Chem. C 112: 10043-10049.
19. Pyrz W D, Blom D A, Shiju N R, Guliants V V, Vogt T, and Buttrey D J The effect of Nb or Ta substitution into the M1 phase of the MoV(Nb,Ta)TeO selective oxidation catalyst Top. Catal (in press).
20. Allen L J, Findlay S D, Oxley M P, and Rossouw C J (2003) Lattice-resolution contrast from a focused coherent electron probe. Part I. Ultramicroscopy 96: 47-63
21. Findlay S D, Allen L J, Oxley M P, and Rossouw C J (2003) Lattice-resolution contrast from a focused coherent electron probe. Part II. Ultramicroscopy 96: 65-81.
22. García-González E, López Nieto J M, Botella P, and González-Calbet J M (2002) On the nature and structure of a new MoVTeO crystalline phase. Chem. Mater. 14: 4416-4421.