Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
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Drug
Enzyme
Compound
Query: EC:4.1.2.42 (
DTA
)
1,693
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The aim of this study is to prepare CuO-CeO
2
composite by means of mechanical milling and to investigate its characteristics as a catalyst. The structural and morphological features of milled samples are observed by X-ray diffractometry and scanning electron microscopy. The redox property and total
OSC
(oxygen storage capacity) of the milled sample were measured by using GC-TCD and TG-
DTA
, which are important parameters to indicate the effectiveness of catalysts. Interestingly, reduction of CuO is repeatedly observed when milling of CuO-CeO
2
powder mixture is processed in air. The redox property of milled CuO-CeO
2
sample is investigated by H
2
-TPR, where three reduction peaks are observed for 0 h milling and only one broad peak for various other milling times. The total
OSC
of mechanically driven CuO-CeO
2
catalyst is much higher than that of the CeO
2
-ZrO
2
traditional catalyst system at low temperatures.
...
PMID:Structure and catalytic behaviour of CuO-CeO
2
prepared by high-energy ball milling. 3089 Dec 95
