Zirconium(IV)-BTC-based MOF modified with nickel as a catalyst for hydrogenation of citronellal
This study is designed to determine the effect of nickel (Ni) metal bearing on zirconium(IV) benzene 1,3,5-tricarboxylate based MOF, [Zr6 O4 (OH)4 (O2 C2 H3 )6 (BTC)2 ] (Zr-BTC) and its application as a catalyst in the citronellal hydrogenation. The synthesis of Zr-BTC was carried out un...
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Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Penerbit Universiti Kebangsaan Malaysia
2022
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Online Access: | http://journalarticle.ukm.my/20648/1/16.pdf http://journalarticle.ukm.my/20648/ https://www.ukm.my/jsm/malay_journals/jilid51bil9_2022/KandunganJilid51Bil9_2022.html |
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Summary: | This study is designed to determine the effect of nickel (Ni) metal bearing on zirconium(IV) benzene 1,3,5-tricarboxylate
based MOF, [Zr6
O4
(OH)4
(O2
C2
H3
)6
(BTC)2
] (Zr-BTC) and its application as a catalyst in the citronellal hydrogenation.
The synthesis of Zr-BTC was carried out under solvothermal condition, while the wet impregnation method was used to
synthesize 2.5 wt.% Ni/Zr-BTC. The catalytic test of citronellal hydrogenation was performed in a batch reactor at
80 °C for 6 h with various hydrogen pressures. XRD characterization showed the suitability of the prominent peaks of
Zr-BTC to the standard pattern, while Ni metal could not be detected clearly but was confirmed by EDX analysis. FTIR
analysis showed a significant shift in the wavenumber from 1722 cm-1 to 1567 cm-1 indicating coordination of deprotonated
ligands to the Zr4+ metal ions. Nickel loading reduced the surface area of Zr-BTC to 523 m2
/g and the pore volume to 0.11
cc/g according to the nitrogen sorption isotherm. The catalytic tests showed that 30% Ni loading enhanced the activity
and selectivity of Zr-BTC in citronellal hydrogenation, resulting in 62.1% yield of isopulegol (for batch reactor) and
14.1% yield of citronellol (for hydrogen balloon). |
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