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![[Figure 6]](ye5030fig6mag.jpg)
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Figure 6
XRD patterns measured operando at beamline P07, PETRA III (Hamburg, Germany). (a, c) Diffractogram at the beginning of the catalyst bed (yellow, 2 mm, before β) in the presence of gas phase oxygen; (b, g) diffractogram at the end of the catalyst bed (blue, 36 mm, beyond β) in the absence of gas phase oxygen. (a, b) Each pattern contains signal contributions from fused silica and alumina. A corresponding pattern is shown in green. (d)–(f) XRD patterns measured at the catalyst bed position β (18–24 mm). Reaction conditions: C2H6/O2/N2:10/10/80, 515°C, 1 bar, OD 6 mm/ID 5.6 mm, 38 mm catalyst bed, 15 ml min−1, 30 wt% MoO3/γ-Al2O3, beam size 0.5 mm × 0.5 mm (H × V), 103.413 keV (λ = 0.1199 Å). |
![[Figure 6]](ye5030fig6.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
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