Details
| Original language | English |
|---|---|
| Pages (from-to) | 13598-13608 |
| Number of pages | 11 |
| Journal | Chemistry - a European journal |
| Volume | 25 |
| Issue number | 59 |
| Early online date | 9 Aug 2019 |
| Publication status | Published - 22 Oct 2019 |
Abstract
In a systematic investigation, the synthesis of metal–organic frameworks (MOFs) with MIL-140 structure was studied. The precursors of this family of MOFs are the same as for the formation of the well-known UiO-type MOFs although the synthesis temperature for MIL-140 is significantly higher. This study is focused on the formation of Zr-based MIL-140 MOFs with terephthalic acid (H2bdc), biphenyl-4,4′-dicarboxylic acid (H2bpdc), and 4,4′-stilbenedicarboxylic acid (H2sdc) and the introduction of synthesis field diagrams to discover parameters for phase-pure products. In this context, a MIL-140 network with H2sdc as linker molecule is first reported. Additionally, an important aspect is the reduction of the synthesis temperature to make MIL-140 MOFs more accessible even though linkers with a more delicate nature are used. The solvothermal syntheses were conducted in highly concentrated reaction mixtures whereby a targeted synthesis to yield the MIL-140 phase is possible. Furthermore, the effect of the often-used modulator approach is examined for these systems. Finally, the characteristics of the synthesized MOFs are compared with physisorption measurements, thermogravimetric analyses, and scanning electron microscopy.
Keywords
- hybrid materials, metal–organic frameworks, MIL-140, phase purity, synthesis field diagrams
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- Organic Chemistry
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In: Chemistry - a European journal, Vol. 25, No. 59, 22.10.2019, p. 13598-13608.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Low-Temperature Approach for the Phase-Pure Synthesis of MIL-140 Structured Metal–Organic Frameworks
AU - Schulz, Marcel
AU - Marquardt, Nele
AU - Schäfer, Malte
AU - Warwas, Dawid Peter
AU - Zailskas, Saskia
AU - Schaate, Andreas
N1 - Funding Information: General and financial support by Prof. Dr. P. Behrens as well as fruitful discussions are gratefully acknowledged. Another acknowledgement goes to the LNQE (Laboratory of Nano and Quantum Engineering, Leibniz University Hannover) for the opportunity to use their TEM equipment. We thank Hendrik A. Schulze and Thea Heinemeyer for additional SEM images.
PY - 2019/10/22
Y1 - 2019/10/22
N2 - In a systematic investigation, the synthesis of metal–organic frameworks (MOFs) with MIL-140 structure was studied. The precursors of this family of MOFs are the same as for the formation of the well-known UiO-type MOFs although the synthesis temperature for MIL-140 is significantly higher. This study is focused on the formation of Zr-based MIL-140 MOFs with terephthalic acid (H2bdc), biphenyl-4,4′-dicarboxylic acid (H2bpdc), and 4,4′-stilbenedicarboxylic acid (H2sdc) and the introduction of synthesis field diagrams to discover parameters for phase-pure products. In this context, a MIL-140 network with H2sdc as linker molecule is first reported. Additionally, an important aspect is the reduction of the synthesis temperature to make MIL-140 MOFs more accessible even though linkers with a more delicate nature are used. The solvothermal syntheses were conducted in highly concentrated reaction mixtures whereby a targeted synthesis to yield the MIL-140 phase is possible. Furthermore, the effect of the often-used modulator approach is examined for these systems. Finally, the characteristics of the synthesized MOFs are compared with physisorption measurements, thermogravimetric analyses, and scanning electron microscopy.
AB - In a systematic investigation, the synthesis of metal–organic frameworks (MOFs) with MIL-140 structure was studied. The precursors of this family of MOFs are the same as for the formation of the well-known UiO-type MOFs although the synthesis temperature for MIL-140 is significantly higher. This study is focused on the formation of Zr-based MIL-140 MOFs with terephthalic acid (H2bdc), biphenyl-4,4′-dicarboxylic acid (H2bpdc), and 4,4′-stilbenedicarboxylic acid (H2sdc) and the introduction of synthesis field diagrams to discover parameters for phase-pure products. In this context, a MIL-140 network with H2sdc as linker molecule is first reported. Additionally, an important aspect is the reduction of the synthesis temperature to make MIL-140 MOFs more accessible even though linkers with a more delicate nature are used. The solvothermal syntheses were conducted in highly concentrated reaction mixtures whereby a targeted synthesis to yield the MIL-140 phase is possible. Furthermore, the effect of the often-used modulator approach is examined for these systems. Finally, the characteristics of the synthesized MOFs are compared with physisorption measurements, thermogravimetric analyses, and scanning electron microscopy.
KW - hybrid materials
KW - metal–organic frameworks
KW - MIL-140
KW - phase purity
KW - synthesis field diagrams
UR - http://www.scopus.com/inward/record.url?scp=85073666945&partnerID=8YFLogxK
U2 - 10.1002/chem.201902981
DO - 10.1002/chem.201902981
M3 - Article
C2 - 31397514
AN - SCOPUS:85073666945
VL - 25
SP - 13598
EP - 13608
JO - Chemistry - a European journal
JF - Chemistry - a European journal
SN - 0947-6539
IS - 59
ER -