TY - JOUR
T1 - Influence of particle size in Pd-catalysed selective hydrogenation of 1,3-butadiene
AU - Brandt Corstius, Oscar E.
AU - van der Hoeven, J. E.S.
AU - Sunley, G. J.
AU - de Jongh, P. E.
N1 - Funding Information:
The authors gratefully acknowledge BP plc for funding. The authors also acknowledge Krijn de Jong, Giorgio Totarella, Tegan Roberts and Eric Doskocil for fruitful contributions to the scientific discussions, Jan Willem de Rijk for technical assistance and Sonja Wilms for assistance with catalyst synthesis, characterization and testing.
Publisher Copyright:
© 2023 The Authors
PY - 2023/11
Y1 - 2023/11
N2 - Supported Pd nanoparticles are widely used as catalysts for the selective hydrogenation of alkynes and diolefins. They have a high activity, but it remains challenging to limit over–hydrogenation to alkanes. We varied the nanoparticle size of a Pd on carbon catalyst from 2 to 17 nm and studied its effect on the catalytic activity and selectivity in the selective hydrogenation of 1,3-butadiene in the presence of an excess of propylene. The butadiene hydrogenation activity per metal surface atom increased slightly with Pd particle size, from 17 s−1 to 34 s−1 at 25 °C for 2 nm to 17 nm particles. Contrarily, the propylene hydrogenation activity decreased with particle size: from 2.6 s−1 to 0.4 s−1 from 2 to 17 nm particles. Overall, a higher product selectivity was obtained with increasing particle size over the full butadiene conversion range. Altogether, this paper provides useful insight for the rational design of monometallic Pd-catalyst for selective hydrogenation.
AB - Supported Pd nanoparticles are widely used as catalysts for the selective hydrogenation of alkynes and diolefins. They have a high activity, but it remains challenging to limit over–hydrogenation to alkanes. We varied the nanoparticle size of a Pd on carbon catalyst from 2 to 17 nm and studied its effect on the catalytic activity and selectivity in the selective hydrogenation of 1,3-butadiene in the presence of an excess of propylene. The butadiene hydrogenation activity per metal surface atom increased slightly with Pd particle size, from 17 s−1 to 34 s−1 at 25 °C for 2 nm to 17 nm particles. Contrarily, the propylene hydrogenation activity decreased with particle size: from 2.6 s−1 to 0.4 s−1 from 2 to 17 nm particles. Overall, a higher product selectivity was obtained with increasing particle size over the full butadiene conversion range. Altogether, this paper provides useful insight for the rational design of monometallic Pd-catalyst for selective hydrogenation.
KW - 1,3–butadiene
KW - Palladium
KW - Particle size effects
KW - Propylene
KW - Selective hydrogenation
UR - http://www.scopus.com/inward/record.url?scp=85170415419&partnerID=8YFLogxK
U2 - 10.1016/j.jcat.2023.115103
DO - 10.1016/j.jcat.2023.115103
M3 - Article
AN - SCOPUS:85170415419
SN - 0021-9517
VL - 427
SP - 1
EP - 9
JO - Journal of Catalysis
JF - Journal of Catalysis
M1 - 115103
ER -