The activation of a dimethylgallium/ZSM-5 precursor to well-defined reduced and oxidized species is studied by in situ Ga K edge XANES. The precursor is prepared by chemical implanting of trimethylgallium on acidic HZSM-5. Subsequent reduction leads to charge-compensating Ga+ species. Direct oxidation of the trimethylgallium precursor leads to various forms of gallium oxide and regeneration of Brønsted acid protons. Oxidation of the reduced Ga+ species yields predominantly to GaO+ species. The GaO+ species exhibit a much higher H2/D2 exchange activity than reduced Ga+ species.
Similar content being viewed by others
References
J.R. Mowry R.F. Anderson J.A. Johnson (1985) Oil Gas J. 83 1288
C. Doolan P.R. Pujado (1989) Hydrocarbon Proc. 68–69 72
Kitagawa Y. Sendoda Y. Ono (1986) J. Catal. 101 12
N.S. Gnep J.Y. Doyemet M. Guisnet (1988) J. Mol. Catal. 45 281
M. Guisnet N.S. Gnep F. Alario (1992) Appl. Catal. A: General 89 1
B.S. Kwak W.M.H. Sachtler W.O. Haag (1994) J. Catal. 149 465
B.S. Kwak Sachtler W.M.H. (1994) J. Catal. 145 456
J. Yao R. Mao Particlele van L. Dufresne (1990) Appl. Catal. A: General 65 175
E. Iglesia J.E. Baumgartner G.L. Price (1992) J. Catal. 134 549
G.D. Meitzner E. Iglesia J.E. Baumgarnter E.S. Huang (1993) J.␣Catal. 140 209
J.A. Biscardi E. Iglesia (1996) Catal. Today 31 207
R. Fricke H. Kosslick G. Lischke M. Richter (2000) Chem. Rev. 100 2303
V.R. Choudhary K. Mantri C. Sivadinarayama (2000) Microporous Mesoporous Mater. 37 1
V.B. Kazansky I.R. Subbotina R.A. Santen Particlevan E.J.M. Hensen (2004) J. Catal. 227 263
K.M. Dooley C. Chang G.L. Price (1992) Appl. Catal. A: General 84 17
G.L. Price V. Kanizirev (1990) J. Catal. 126 267
B.S. Kwak W.M.H. Sachtler (1993) J. Catal. 141 729
El.-M. El Malki R.A. Santen Particlevan W.M.H. Sachtler (1999) J. Phys. Chem. B 103 4611
R.J. Nash M.E. Dry C.T. O’Conner (1996) Appl. Catal. A: General 134 285
B.S. Kwak W.M.H. Sachtler (1993) J. Catal. 141 729
M. Garcia-Sanchez P.C.M.M. Magusin E.J.M. Hensen P.C. Thüne X. Rozanska R.A. Santen Particlevan (2003) J. Catal. 219 352
A.C. Wei P.-H. Liu K.-J. Chao E. Yang H.Y. Cheng (2001) Microporous Mesoporous Mater. 47 147
K.-J. Chao A.C. Wei H.C. Wu J.F. Lee (2000) Microporous Mesoporous Mater. 35–36 413
S.J. Geller (1960) Chem. Phys. 33 676
K. Nishi K.I. Shimizu M. Tahamatzu H. Yoshida A. Satsuma T. Ranaka S. Yoshida T. Hattori (1998) J. Phys. Chem. B 102 10190
K. Shimizu M. Takamatsu K. Nishi H. Yoshida A. Satsuma T. Tanaka S. Yoshida T. Hattori (1999) J. Phys. Chem. B 103 1542
N.W. Mitzel, C. Lustig, R.J.F. Berger and N. Runeberg, Angew. Chem. Int. Ed. (2002) 41
R. Boese A.J. Downs T.M. Greene A.W. Hall C.A. Morrison S. Parsons (2003) Organometallics 22 2450
M. Frash R.A. Santen Particlevan (2000) J. Phys. Chem. A 104 2468
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hensen, E.J., García-Sánchez, M., Rane, N. et al. In situ Ga K edge XANES study of the activation of Ga/ZSM-5 prepared by chemical vapor deposition of trimethylgallium. Catal Lett 101, 79–85 (2005). https://doi.org/10.1007/s10562-004-3753-x
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10562-004-3753-x