Size effect of the active sites in UiO-66-supported nickel catalysts synthesized

Via atomic layer deposition for ethylene hydrogenation

Zhanyong Li, Aaron W. Peters, Jian Liu, Xuan Zhang, Neil M. Schweitzer, Joseph T Hupp, Omar K. Farha

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)820-824
Number of pages5
JournalInorganic Chemistry Frontiers
Volume4
Issue number5
DOIs
Publication statusPublished - May 1 2017

Fingerprint

Atomic layer deposition
Nickel
Hydrogenation
Metals
Catalysts
Ions
Catalyst supports
Catalyst activity
X ray photoelectron spectroscopy
Chemical activation
Atoms
Defects
Chemical analysis
ethylene

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Size effect of the active sites in UiO-66-supported nickel catalysts synthesized : Via atomic layer deposition for ethylene hydrogenation. / Li, Zhanyong; Peters, Aaron W.; Liu, Jian; Zhang, Xuan; Schweitzer, Neil M.; Hupp, Joseph T; Farha, Omar K.

In: Inorganic Chemistry Frontiers, Vol. 4, No. 5, 01.05.2017, p. 820-824.

Research output: Contribution to journalArticle

Li, Zhanyong ; Peters, Aaron W. ; Liu, Jian ; Zhang, Xuan ; Schweitzer, Neil M. ; Hupp, Joseph T ; Farha, Omar K. / Size effect of the active sites in UiO-66-supported nickel catalysts synthesized : Via atomic layer deposition for ethylene hydrogenation. In: Inorganic Chemistry Frontiers. 2017 ; Vol. 4, No. 5. pp. 820-824.
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