| I |
Introduction |
4 |
| II |
Personnel |
4 |
| III |
New Instrumentation |
4 |
| IV |
Methods of Measurement of Mossbauer Parameters |
6 |
| V |
Analysis of Mossbauer Data |
7 |
| VI |
Synopsis of the Work Carried out on the "1981" - Samples Sent by
PETC |
7 |
|
VIII |
Conclusions |
10 |
|
References |
12 |
| List of Publications |
30 |
|
1 |
Mossbauer Spectroscopy Results |
31 |
| FIGURES |
| Fig 1 |
Schematic of Mossbauer Spectrometer Configuration (with Laser) |
13 |
| Fig 2 |
Mossbauer absorber cell with the sample holder assembly raised
and thermocouples, flange bolts, and bolt holes omitted. |
14 |
| Fig 3 |
Gas flow and reactor system for Mossbauer in-situ study |
15 |
| Fig 4 |
Mossbauer spectra (@) obtained at room temperature under various
stages. |
16 |
| Fig 5 |
ZSM-5 (15.2%) Fresh catalyst impregnated using Fe3(CO)12
(Fresh 359-3). |
17 |
| Fig 6 |
81-12, Mordenite (SiO2/Al2O3=11.4)
with 15.11% Fe impregnated using Fe3(CO)12. |
18 |
| Fig 7 |
81-3, Reduction for 30 min with H2=50 cc/min at 450ºC |
19 |
| Fig 8 |
81-12, Mordenite (SiO2/Al2O3=11.4)
with 15.11% Fe impregnated using Fe3(CO)12. |
19 |
| Fig 8 |
81-3, Reduction for 24 hrs with H2 = 50 cc/min at
450ºC |
20 |
| Fig 9 |
81-3, reduction for 2 hrs with H2 -= 10 cc/min at
450ºC |
21 |
| Fig 10 |
87-12, Reduction for 4 hrs with H2 = 10 cc/min at
450ºC |
22 |
| Fig 11 |
81-3, carbiding with H2/CO=1:1, 50 cc/min, at 250ºC
for 9 hrs. |
23 |
| Fig 12 |
81-3, carbiding with H2/CO = 1:1, 50 cc/min, at 250ºC
for 19 hrs. |
24 |
| Fig 13 |
81-3, carbiding with H2/CO = 1:1, 50 cc/min, at 250ºC
for 24 hrs. |
25 |
| Fig 14 |
81-12, carbiding with H2/CO = 1:1, 10 cc/min, at
250ºC for 20 hrs. |
26 |
| Fig 15 |
81-3, Run with H2/CO = 1:1 50 cc/min, at 280ºC for 12
hrs |
27 |
| Fig 16 |
81-3, Run with H2/CO = 1:1. 50 cc/min, at 300ºC for
12 hrs. |
28 |
| Fig 17 |
81-3, Run with H2/Co = 1:1, 50 cc/min, at 300ºC for 48 hrs. |
29 |
