@article {Gazdag:2019:1533-4880:484,
title = "Effect of Particle Restructuring During Reduction Processes Over Polydopamine-Supported Pd Nanoparticles",
journal = "Journal of Nanoscience and Nanotechnology",
parent_itemid = "infobike://asp/jnn",
publishercode ="asp",
year = "2019",
volume = "19",
number = "1",
publication date ="2019-01-01T00:00:00",
pages = "484-491",
itemtype = "ARTICLE",
issn = "1533-4880",
eissn = "1533-4899",
url = "https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000001/art00064",
doi = "doi:10.1166/jnn.2019.15770",
keyword = "Heterogeneous Catalysis, Transfer-Hydrogenation, Enantioselective Hydrogenation, Transmission Electron Microscopy, Polydopamine, Palladium",
author = "Gazdag, Tam{\’a}s and Bar{\’o}thi, {\’A}d{\’a}m and Juh{\’a}sz, Kopp{\’a}ny Levente and Kunfi, Attila and N{\’e}meth, P{\’e}ter and S{\’a}pi, Andr{\’a}s and Kukovecz, {\’A}kos and K{\’o}nya, Zolt{\’a}n and Szori, Korn{\’e}l and London, G{\’a}bor",
abstract = "The effect of catalyst restructuring on the polydopamine-supported Pd catalyzed transfer hydrogenation of ethyl 4-nitrobenzoate and the catalytic hydrogenation of (E)-2-methyl-2-butenoic acid is reported. Transmission electron microscopy investigation of different catalyst pre-treatment
and reaction conditions revealed high catalytic activity in both reactions unless drastic aggregation of the active metal occurred. In the transfer hydrogenation reaction aggregation was primarily dependent on the H-source used, while in the catalytic hydrogenation additives in combination
with the reductive environment led to extensive Pd aggregation and thus decreased catalytic activity. The enantioselective hydrogenation of (E)-2-methyl-2-butenoic acid showed increased enantioselectivity and decreased conversion with increased particle size.",
}