Combining the surface acidity test, in situ infrared spectroscopy and density function theory simulations, we demonstrated that the introduced –HSO 4 effectively enhances the Lewis acidity of adjacent Zr sites, which shows strong CF 4 adsorption ability and promotes its decomposition.

2024年1月3日 · 在此，我们开发了一种质子化硫酸盐（–HSO 4）修饰的ZrO 2（S-ZrO 2）来增强CF 4吸附并在650℃下实现完全分解，优于普通的γ-Al 2 O 3。 结合表面酸性测试、原位红外光谱和密度函数理论模拟，我们证明引入的-HSO 4有效增强了相邻Zr位点的路易斯酸性，表现出较强的CF 4吸附能力并促进其分解。

1991年12月1日 · A series of ZrO2 samples, which were prepared through the solution method with different sulfuric acid concen- trations, were studied by X-ray diffraction and thermal analyses to reveal the correlation between the physical properties of the samples and the concentration of …

1 Supporting information Enhanced surface Lewis acidity of ZrO2 by ‒HSO4 for efficient CF4 decomposition Yingkang Chena†, Cheng-Wei Kaob†, Tao Luoa, Hang Zhanga, Yan Longa, Junwei Fua, Zhang Linc, Liyuan Chaic, Ting-Shan Chanb*, Min Liua,c* aHunan Joint International Research Center for Carbon Dioxide Resource Utilization, School of Physics, and School of Metallurgy and Environment ...

2019年11月7日 · In the present study, we developed an effective ZrO 2 -based bifunctional heterogeneous catalyst for simultaneous esterification–transesterification of microalgae lipid to biodiesel.

为克服现有催化体系不易分离和环保性差的缺点，本论文根据羟醛缩合反应的特点，选择制备兼具酸碱活性位的ZrO2，研究其对正戊醛自缩合反应的催化性能。 向沉淀法中引入离子液体作为诱导剂，实现ZrO2的晶相可控合成。 分别考察了阴阳离子对ZrO2晶相、物理结构等的影响，采用XRD、SEM和N2吸附-脱附对制备的ZrO2样品进行了表征。 结果表明，离子液体的阴离子对ZrO2的晶型起决定作用，而阳离子主要影响其形貌；分别以 [bmim]BF4和 [bmim]HSO4为诱 …

The calculation model of S-ZrO 2 with CF 4 . from publication: Enhanced surface Lewis acidity of ZrO2 by ‒HSO4 for efficient CF4 decomposition | Tetrafluoromethane (CF4), as the simplest and...

四氟甲烷（cf4）是大气中最简单、含量最高的全氟化碳（pfcs），因其强大的温室效应潜力而被列入《联合国气体框架公约》。随着其在大气中的排放量不断增加，催化水解

Introducing –HSO4 to enhance the surface Lewis acidity can significantly improve the CF4 decomposition activity of ZrO2.

The acidity of mesoporous MoOx/ZrO2 and WOx/ZrO2 materials was studied in detail by multinuclear solid-state NMR techniques as well as DFT quantum chemical calculations. The 1H MAS NMR experiments ...