期刊
CRYSTAL GROWTH & DESIGN
卷 18, 期 9, 页码 5492-5500出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.8b00832
关键词
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资金
- European Union's Horizon 2020 research and innovation programme [641887]
- Spanish Ministry of Economy and Competitiveness
- Spanish Ministry of Science and Innovation [MAT2014-52085-C2-1-P]
- German Research Foundation [KA 1698/19-1]
A postsynthetic treatment with diluted solutions of the inorganic HCl or H2SO4 acids was applied to functionalize the eight connected Zr-based metal-organic framework DUT-67 (DUT = Dresden University of Technology). During the treatment, it is possible to remove and exchange the pristine modulator (formate) by Cl(-)or SO(4)(2-)anions. The position of the chlorine in the crystal structure of DUT-67 after HCl treatment could be determined by single-crystal X-ray diffraction analysis. Moreover, by means of the acidic treatment the polarity of the network as well as its Bronsted acid strength are increased, which have a crucial impact on the catalytic performance. The improved catalytic activity of the acid-treated materials was demonstrated in the esterification of levulinic acid with ethanol.
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