Kwon et al.
Surface Modification of SiO for Highly Dispersed Pd/SiO Catalyst
2 2
Table V. Effect of Pd dispersion on hydrogenation.
increases, and thus, the catalytic activity increases with the
use of highly dispersed catalyst.
These results represent the development of a simple
method for the modification of surface properties of cata-
lyst supports, which will ultimately lead to enhanced cat-
alytic activities.
Catalysts
None
Conversion (%)
Selectivity (%)
Yield (%)
19ꢃ47
25ꢃ41
38ꢃ17
43ꢃ92
74ꢃ35
56ꢃ05
41ꢃ24
10ꢃ72
60ꢃ14
83ꢃ14
85ꢃ01
87ꢃ56
78ꢃ62
85ꢃ74
2ꢃ09
15ꢃ29
31ꢃ73
37ꢃ33
65ꢃ11
44ꢃ07
35ꢃ36
Pd/SiO _100
2
Pd/SiO _300
2
Pd/SiO _500
2
Pd/SiO _700
2
Pd/SiO _900
2
Acknowledgment: This research was financially sup-
ported by a Private Finance Research Project (Project No.
IR170027) and by the Korea Institute of Industrial Tech-
nology (KITECH) (Project No. JA180001).
Pd/SiO _1100
2
of sorbitol increased with increase in Pd metal disper-
sion in the order: Pd/SiO _700 (65.11%) > Pd/SiO _900
2
2
(
44.07%) > Pd/SiO _500 (37.34%) Pd/SiO _1100 (35.36%) >
2
2
References and Notes
Pd/SiO _300 (31.73%) > Pd/SiO _100 (15.29%). Sorbitol
2
2
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Received: 1 November 2017. Accepted: 31 March 2018.
J. Nanosci. Nanotechnol. 19, 882–887, 2019
887