Summary Abstract: Angle‐resolved SIMS studies of O2 and CO chemisorption on Ni3Fe(111)

R. J. Bleiler; A. C. Diebold; N. Winograd

doi:10.1116/1.572291

Summary Abstract: Angle‐resolved SIMS studies of O2 and CO chemisorption on Ni3Fe(111)

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films ◽

10.1116/1.572291 ◽

1983 ◽

Vol 1 (2) ◽

pp. 1230-1231 ◽

Cited By ~ 4

Author(s):

R. J. Bleiler ◽

A. C. Diebold ◽

N. Winograd

Keyword(s):

Co Chemisorption

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Preparation, reduction, and CO chemisorption properties of a cyanide-derived Fe/Al2O3 catalyst

Applied Catalysis A General ◽

10.1016/s0926-860x(96)00193-7 ◽

1996 ◽

Vol 147 (1) ◽

pp. 207-227 ◽

Cited By ~ 13

Author(s):

E. Boellaard ◽

A.M. van der Kraan ◽

J.W. Geus

Keyword(s):

Co Chemisorption ◽

Al2o3 Catalyst

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Effect of Carbon Pre-Treatment on Pd Dispersion in Synthesis of Pd/C Catalyst

Materials Science Forum ◽

10.4028/www.scientific.net/msf.804.149 ◽

2014 ◽

Vol 804 ◽

pp. 149-152 ◽

Cited By ~ 1

Author(s):

Ji Sun Kim ◽

Jae Ho Baek ◽

Myung Hwan Kim ◽

Seong Soo Hong ◽

Man Sig Lee

Keyword(s):

Surface Area ◽

Nitrogen Adsorption ◽

Area Ratio ◽

High Dispersion ◽

Co Chemisorption ◽

Pd Dispersion ◽

Before And After ◽

Pre Treatment ◽

Treated Carbon ◽

Adsorption Desorption

In this study, we confirmed effect of carbon pre-treatment on Pd dispersion in synthesis of Pd/C catalyst. Physical characteristics on the surface of before and after pre-treated carbon were analyzed by nitrogen adsorption-desorption analysis. The dispersion and size of Pd particles were analyzed by XRD, FE-TEM and CO-chemisorption. After pre-treatment, surface area of carbon were decreased. And mesopore area ratio were increased with decreasing micropore area ratio. In the case of pre-treated carbon, we confirmed high dispersion of Pd particles.

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SIMS/XPS study of CO chemisorption on polycrystalline Pd, Ag and A PdAg alloy

Surface Science Letters ◽

10.1016/0167-2584(80)90573-3 ◽

1980 ◽

Vol 95 (1) ◽

pp. A170

Author(s):

G.J. Slusser ◽

N. Winograd

Keyword(s):

Co Chemisorption ◽

Xps Study

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Size effect in the CO chemisorption on palladium clusters supported on magnesium oxide

Surface Science ◽

10.1016/0039-6028(92)91451-g ◽

1992 ◽

Vol 272 (1-3) ◽

pp. 283-288 ◽

Cited By ~ 95

Author(s):

C.R. Henry ◽

C. Chapon ◽

C. Goyhenex ◽

R. Monot

Keyword(s):

Size Effect ◽

Magnesium Oxide ◽

Co Chemisorption ◽

Palladium Clusters

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CO chemisorption on silica-supported palladium-silver alloys

Journal of Catalysis ◽

10.1016/0021-9517(75)90191-8 ◽

1975 ◽

Vol 37 (3) ◽

pp. 548-552 ◽

Cited By ~ 12

Author(s):

D CORMACK

Keyword(s):

Silver Alloys ◽

Co Chemisorption ◽

Supported Palladium ◽

Palladium Silver

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The Effect of Support Pretreatment with Ammonia on Pd/SiO2 Catalyst

Materials Science Forum ◽

10.4028/www.scientific.net/msf.922.125 ◽

2018 ◽

Vol 922 ◽

pp. 125-129

Author(s):

Ji Soo Kwon ◽

Jae Ho Baek ◽

Hak Sung Lee ◽

Man Sig Lee

Keyword(s):

Silanol Group ◽

N2 Adsorption ◽

Ammonia Water ◽

Co Chemisorption ◽

Silanol Groups ◽

Pd Dispersion ◽

Highly Dispersed ◽

High Metal ◽

Ft Ir ◽

Effect Of Support

We have reported the effect of support pretreatment with ammonia on Pd/SiO2 catalyst in this study. SiO2 was pretreated with ammonia water to increase the Pd dispersion before the preparation of Pd/SiO2 catalysts. The effect of support pretreatment with ammonia on Pd/SiO2 catalyst was investigated by XRD, FT-IR, N2-adsorption and FE-TEM. The Pd supported on pretreated SiO2 were characterized by XRD, CO-chemisorption and FE-TEM. The pretreatment of SiO2 with ammonia water lead to decrease of silanol groups (Si-OH) up to temperature 200 °C. This decline of silanol groups on the SiO2 affects highly dispersed Pd/SiO2 as 6.52 %. The result showed that the decrease of silanol group on the SiO2 was favorable for the Pd dispersion. It is reason that absence of the silanol groups contribute to the high metal reducibility.

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