@misc{10498/33694,
year = {2024},
url = {http://hdl.handle.net/10498/33694},
abstract = {The removal of acetylene from ethylene streams is key in industry for
manufacturing polyethylene. Here we show that a well-defned Pd1–Au1
dimer, anchored to the walls of a metal–organic framework (MOF), catalyses
the selective semihydrogenation of acetylene to ethylene with ≥99.99%
conversion (≤1 ppm of acetylene) and >90% selectivity in extremely rich
ethylene streams (1% acetylene, 89% ethylene, 10% H2, simulated industrial
front-end reaction conditions). The reaction proceeds with an apparent
activation energy of ∼1 kcal mol–1, working even at 35 °C, and with
operational windows (>100 °C) and weight hourly space velocities
(66,000 ml g−1
cat h−1
) within industrial specifcations. A combined
experimental and computational mechanistic study shows the cooperativity
between both atoms, and between atoms and support, to enable the
barrierless semihydrogenation of acetylene.},
publisher = {Nature Research},
title = {A MOF-supported Pd1–Au1 dimer catalyses the semihydrogenation reaction of acetylene in ethylene with a nearly barrierless activation energy},
doi = {10.1038/S41929-024-01130-7},
author = {Ballesteros Soberanas, Jordi and Martín, Nuria and Bacic, Matea and Tiburcio, Estefanía and Mon, Marta and Hernández Garrido, Juan Carlos and Marini, Carlo and Boronat, Mercedes and Ferrando Soria, Jesús and Armentano, Donatella and Pardo, Emilio and Leyva Pérez, Antonio},
}