TY - JOUR
T1 - Size effect of the active sites in UiO-66-supported nickel catalysts synthesized
T2 - Via atomic layer deposition for ethylene hydrogenation
AU - Li, Zhanyong
AU - Peters, Aaron W.
AU - Liu, Jian
AU - Zhang, Xuan
AU - Schweitzer, Neil M.
AU - Hupp, Joseph T.
AU - Farha, Omar K.
N1 - Publisher Copyright:
© 2017 the Partner Organisations.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/5
Y1 - 2017/5
N2 - Ni(ii) ions have been deposited on the Zr6 nodes of a metal-organic framework (MOF), UiO-66, via an ALD-like process (ALD = atomic layer deposition). By varying the number of ALD cycles, three Ni-decorated UiO-66 materials were synthesized. A suite of physical methods has been used to characterize these materials, indicating structural and high-surface-area features of the parent MOF are retained. Elemental analysis via X-ray photoelectron spectroscopy (XPS) indicates that the anchored Ni ions are mainly on surface and near-surface MOF defect sites. Upon activation, all three materials are catalytic for ethylene hydrogenation, but their catalytic activities significantly vary, with the largest clusters displaying the highest per-nickel-atom activity. The study highlights the ease and effectiveness of ALD in MOFs (AIM) for synthesizing, specifically, UiO-66-supported NiyOx catalysts.
AB - Ni(ii) ions have been deposited on the Zr6 nodes of a metal-organic framework (MOF), UiO-66, via an ALD-like process (ALD = atomic layer deposition). By varying the number of ALD cycles, three Ni-decorated UiO-66 materials were synthesized. A suite of physical methods has been used to characterize these materials, indicating structural and high-surface-area features of the parent MOF are retained. Elemental analysis via X-ray photoelectron spectroscopy (XPS) indicates that the anchored Ni ions are mainly on surface and near-surface MOF defect sites. Upon activation, all three materials are catalytic for ethylene hydrogenation, but their catalytic activities significantly vary, with the largest clusters displaying the highest per-nickel-atom activity. The study highlights the ease and effectiveness of ALD in MOFs (AIM) for synthesizing, specifically, UiO-66-supported NiyOx catalysts.
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U2 - 10.1039/c7qi00056a
DO - 10.1039/c7qi00056a
M3 - Article
AN - SCOPUS:85021784824
VL - 4
SP - 820
EP - 824
JO - Inorganic Chemistry Frontiers
JF - Inorganic Chemistry Frontiers
SN - 2052-1545
IS - 5
ER -