2006
DOI: 10.1002/kin.20202
|View full text |Cite
|
Sign up to set email alerts
|

Kinetic compensation effects observed during oxidation of carbon monoxide on γ‐alumina supported palladium, platinum, and rhodium metal catalysts: Toward a mechanistic explanation

Abstract: The kinetic compensation effect (KCE) is a well-known behavior pattern wherein a set of related reactions show a linear relationship between the calculated Arrhenius parameters, log 10 A and E a . Although various theoretical explanations have been advanced, none has yet found general acceptance. The present paper reports multiple rate measurements for the heterogeneously catalyzed oxidation of CO on several identically prepared samples of supported noble metal (Pd, Pt, or Rh) catalysts. Distinctive KCEs were … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

0
12
0

Year Published

2006
2006
2022
2022

Publication Types

Select...
5
1

Relationship

1
5

Authors

Journals

citations
Cited by 11 publications
(12 citation statements)
references
References 42 publications
0
12
0
Order By: Relevance
“…The numerical correlation between experimental kinetic parameters is called Kinetic Compensation Effect (KCE) [28,29] and has been often detected for heterogeneous reaction kinetics (see e.g. [29] and references therein). In particular, a linear correlation is usually reported between lnA and E a .…”
Section: Resultsmentioning
confidence: 99%
“…The numerical correlation between experimental kinetic parameters is called Kinetic Compensation Effect (KCE) [28,29] and has been often detected for heterogeneous reaction kinetics (see e.g. [29] and references therein). In particular, a linear correlation is usually reported between lnA and E a .…”
Section: Resultsmentioning
confidence: 99%
“…Kinetic compensation effects, also attributed to different variations of surface occupancy with time and temperature during the rate measurements [1], have been observed [28] for CO oxidation on Pd, Pt, and Rh. In a series of apparently identical experiments, the kinetics of the oxidation of CO (1.0 kPa) with O 2 (20.0 kPa) on Pd catalysts (0.5% by mass on alumina) were measured between 370 and 430 K. The apparent magnitudes of Arrhenius parameters varied considerably and compensated, according to Eq.…”
Section: Degree Of Compensationmentioning
confidence: 87%
“…Nevertheless, if compensation [1] is detected, the kinetic significance of the rate constants should be critically examined and the possible mechanistic implications of the behavior considered [28]. The magnitudes of k may be of value in the identification of the kinetic controls and in the recognition of possible common chemical steps that participate in all of those reactions that constitute the KCE set.…”
Section: Degree Of Compensationmentioning
confidence: 99%
See 2 more Smart Citations