TY - JOUR
T1 - Acceleration of deactivation of Ag catalyst by periodic pulse technique for rapid estimation of catalyst life
AU - Hattori, T.
AU - Komai, S.
AU - Hanaichi, T.
AU - Miyamoto, A.
AU - Murakami, Y.
N1 - Funding Information:
ACKNOWLEDGMENT This work was partially supported by a Grant-in-Aid for Scientific Research (No. 58550644) and for Encouragement of Cl assroom Teachers (No. 60918036) from the Ministry of Education, Science and Cul ture, Japan.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1987
Y1 - 1987
N2 - In order to examine the possibility of the rapid estimation of catalyst life by a periodic pulse technique, the deactivation of Ag catalyst in the oxidation of C2H4 was examined. In the periodic pulse technique, O2+N2 mixture and C2H 4+N2 mixture were fed alternately to subject a catalyst to forced redox cycle, which is expected to accelerate the sintering of catalyst under the reaction condition. As expected, the deactivation was faster in the periodic pulse technique than in the continuous flow technique. TEM al so indicated that the particle size of Ag increased faster in the periodic pulse run. Although the deactivation was the fastest in O2+N2 environment, the deactivation behavior was different from that under tlie reaction condition. It was shown that the deactivation should be accelerated under the reaction condition for the rapid estimation of catalyst life, and that the periodic pulse technique is useful for such purpose.
AB - In order to examine the possibility of the rapid estimation of catalyst life by a periodic pulse technique, the deactivation of Ag catalyst in the oxidation of C2H4 was examined. In the periodic pulse technique, O2+N2 mixture and C2H 4+N2 mixture were fed alternately to subject a catalyst to forced redox cycle, which is expected to accelerate the sintering of catalyst under the reaction condition. As expected, the deactivation was faster in the periodic pulse technique than in the continuous flow technique. TEM al so indicated that the particle size of Ag increased faster in the periodic pulse run. Although the deactivation was the fastest in O2+N2 environment, the deactivation behavior was different from that under tlie reaction condition. It was shown that the deactivation should be accelerated under the reaction condition for the rapid estimation of catalyst life, and that the periodic pulse technique is useful for such purpose.
UR - http://www.scopus.com/inward/record.url?scp=3442882410&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3442882410&partnerID=8YFLogxK
U2 - 10.1016/S0167-2991(09)60378-5
DO - 10.1016/S0167-2991(09)60378-5
M3 - Article
AN - SCOPUS:3442882410
VL - 34
SP - 415
EP - 426
JO - Studies in Surface Science and Catalysis
JF - Studies in Surface Science and Catalysis
SN - 0167-2991
IS - C
ER -