Abstract
Direct control over structure and location of catalytic species deposited on amorphous supports represents a formidable challenge in heterogeneous catalysis. In contrast, a structurally well-defined, crystalline metal-organic framework (MOF) can be rationally designed using postsynthetic techniques to allow for desired structural or locational changes of deposited metal ions. Herein, naphthalene dicarboxylate linkers are incorporated in the MOF, NU-1000, to block the small cavities where few-atom clusters of cobalt oxide preferentially grow, inducing catalyst deposition toward hitherto ill-favored grafting sites orientated toward NU-1000s mesoporous channels. Despite the different cobalt oxide location, the resulting material is still an active propane oxidative dehydrogenation catalyst at low temperature, reaching a turnover frequency of 0.68 ± 0.05 h-1 at 230 °C and confirming the utility of MOFs as crystalline supports to guide rational design of catalysts.
| Original language | English |
|---|---|
| Pages (from-to) | 15073-15078 |
| Number of pages | 6 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 10 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - May 2 2018 |
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Keywords
- catalyst location
- cobalt oxide
- metal-organic frameworks
- oxidative dehydrogenation of propane
- post-synthetic modification
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Site-Directed Synthesis of Cobalt Oxide Clusters in a Metal-Organic Framework. / Peters, Aaron W.; Otake, Kenichi; Platero-Prats, Ana E.; Li, Zhanyong; Destefano, Matthew R.; Chapman, Karena W.; Farha, Omar K.; Hupp, Joseph T.
In: ACS Applied Materials and Interfaces, Vol. 10, No. 17, 02.05.2018, p. 15073-15078.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Site-Directed Synthesis of Cobalt Oxide Clusters in a Metal-Organic Framework
AU - Peters, Aaron W.
AU - Otake, Kenichi
AU - Platero-Prats, Ana E.
AU - Li, Zhanyong
AU - Destefano, Matthew R.
AU - Chapman, Karena W.
AU - Farha, Omar K.
AU - Hupp, Joseph T
PY - 2018/5/2
Y1 - 2018/5/2
N2 - Direct control over structure and location of catalytic species deposited on amorphous supports represents a formidable challenge in heterogeneous catalysis. In contrast, a structurally well-defined, crystalline metal-organic framework (MOF) can be rationally designed using postsynthetic techniques to allow for desired structural or locational changes of deposited metal ions. Herein, naphthalene dicarboxylate linkers are incorporated in the MOF, NU-1000, to block the small cavities where few-atom clusters of cobalt oxide preferentially grow, inducing catalyst deposition toward hitherto ill-favored grafting sites orientated toward NU-1000s mesoporous channels. Despite the different cobalt oxide location, the resulting material is still an active propane oxidative dehydrogenation catalyst at low temperature, reaching a turnover frequency of 0.68 ± 0.05 h-1 at 230 °C and confirming the utility of MOFs as crystalline supports to guide rational design of catalysts.
AB - Direct control over structure and location of catalytic species deposited on amorphous supports represents a formidable challenge in heterogeneous catalysis. In contrast, a structurally well-defined, crystalline metal-organic framework (MOF) can be rationally designed using postsynthetic techniques to allow for desired structural or locational changes of deposited metal ions. Herein, naphthalene dicarboxylate linkers are incorporated in the MOF, NU-1000, to block the small cavities where few-atom clusters of cobalt oxide preferentially grow, inducing catalyst deposition toward hitherto ill-favored grafting sites orientated toward NU-1000s mesoporous channels. Despite the different cobalt oxide location, the resulting material is still an active propane oxidative dehydrogenation catalyst at low temperature, reaching a turnover frequency of 0.68 ± 0.05 h-1 at 230 °C and confirming the utility of MOFs as crystalline supports to guide rational design of catalysts.
KW - catalyst location
KW - cobalt oxide
KW - metal-organic frameworks
KW - oxidative dehydrogenation of propane
KW - post-synthetic modification
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U2 - 10.1021/acsami.8b02825
DO - 10.1021/acsami.8b02825
M3 - Article
VL - 10
SP - 15073
EP - 15078
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 17
ER -