Controlling morphology and catalysis capability of Sn/Ce porous coordination polymers by cerium coordination for catalytic conversion of glucose to 5-hydroxymethylfurfural
| Autor: | Siyu Sun, Peijun Ji, Xingyuan Lu, Xianling Meng |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Coordination polymer
General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Cerium Sulfonate chemistry Polymer chemistry Lewis acids and bases 0210 nano-technology Bifunctional Brønsted–Lowry acid–base theory Isomerization |
| Zdroj: | Journal of the Taiwan Institute of Chemical Engineers. 108:102-113 |
| ISSN: | 1876-1070 |
| Popis: | A novel porous coordination polymer (namely SnCe) has been synthesized by simultaneous coordination of Tin (Sn (IV)) and cerium (Ce (III/IV)) with the two ligands 5-sulfoisophthalic acid (SPA) and 1,3,5-benzenetricarboxylic acid (BTC). The morphology and surface area of SnCe can be controlled by the cerium-involved interfacial coordination, by taking advantage of the discrepancy of coordination ability between the two metal ions. The shape and size of the SnCes has a close relationship with the molar ratio of Sn to Ce. The mechanism of the formation of SnCe was investigated by electron microscopy measurement (scanning electron microscope) and XRD patterns. The catalysis capability was also controlled, with Sn (IV) and Ce (III/IV) as the Lewis acid sites and the sulfonate groups of SPA as the Bronsted acid sites. The Lewis acid sites can catalyze isomerization of glucose into fructose, and the Bronsted acid sites can catalyze the dehydration of fructose to 5-hydroxymethylfurfural (HMF) with a high efficiency. Thus, SnCe combines the bifunctional catalysis capability for producing HMF (an important platform chemical) from glucose. This work found that the morphology of catalyst has an effect on the catalyst capability. At the similar reaction conditions, the catalyst exhibits higher conversion and selectivity than those reported. |
| Databáze: | OpenAIRE |
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