Abstract
Leaching of CuO by HNO3 and NH4OH was carried out to study the nature of active species involved in the oxygen-assisted water-gas shift (OWGS) reaction over a highly active CuPd/CeO2 catalyst. Since the CO conversion remained above 99% even after removing significant amount of bulk-like CuO, small CuO clusters dispersed on CeO2 surface and interacting closely with PdO species contributed significantly to the conversion of CO in the OWGS reactions. A significant decrease in the CO conversion over this sample revealed that there is a significant loss in the active species upon NH4OH treatment. The NH4OH treatment removed, in addition to the bulk-like CuO, significant amount of highly dispersed CuO that are responsible for the catalytic activity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 649-651 |
| Number of pages | 3 |
| Journal | Am Chem Soc Div Fuel Chem Prepr |
| Volume | 49 |
| Issue number | 2 |
| State | Published - Sep 2004 |
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All Science Journal Classification (ASJC) codes
- Energy(all)
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Leaching studies of a highly active Cu-Pd bimetallic catalyst supported on nanostructured CeO2 for oxygen-assisted water-gas-shift reaction. / Bickford, Elise S.; Velu, Subramani; Song, Chunshan.
In: Am Chem Soc Div Fuel Chem Prepr, Vol. 49, No. 2, 09.2004, p. 649-651.Research output: Contribution to journal › Article
TY - JOUR
T1 - Leaching studies of a highly active Cu-Pd bimetallic catalyst supported on nanostructured CeO2 for oxygen-assisted water-gas-shift reaction
AU - Bickford, Elise S.
AU - Velu, Subramani
AU - Song, Chunshan
PY - 2004/9
Y1 - 2004/9
N2 - Leaching of CuO by HNO3 and NH4OH was carried out to study the nature of active species involved in the oxygen-assisted water-gas shift (OWGS) reaction over a highly active CuPd/CeO2 catalyst. Since the CO conversion remained above 99% even after removing significant amount of bulk-like CuO, small CuO clusters dispersed on CeO2 surface and interacting closely with PdO species contributed significantly to the conversion of CO in the OWGS reactions. A significant decrease in the CO conversion over this sample revealed that there is a significant loss in the active species upon NH4OH treatment. The NH4OH treatment removed, in addition to the bulk-like CuO, significant amount of highly dispersed CuO that are responsible for the catalytic activity.
AB - Leaching of CuO by HNO3 and NH4OH was carried out to study the nature of active species involved in the oxygen-assisted water-gas shift (OWGS) reaction over a highly active CuPd/CeO2 catalyst. Since the CO conversion remained above 99% even after removing significant amount of bulk-like CuO, small CuO clusters dispersed on CeO2 surface and interacting closely with PdO species contributed significantly to the conversion of CO in the OWGS reactions. A significant decrease in the CO conversion over this sample revealed that there is a significant loss in the active species upon NH4OH treatment. The NH4OH treatment removed, in addition to the bulk-like CuO, significant amount of highly dispersed CuO that are responsible for the catalytic activity.
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M3 - Article
VL - 49
SP - 649
EP - 651
JO - Am Chem Soc Div Fuel Chem Prepr
JF - Am Chem Soc Div Fuel Chem Prepr
SN - 0569-3772
IS - 2
ER -