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    • Enhanced Surface Lewis Acidity of ZrO2 by –HSO4 for Efficient CF4 Decomposition

    Yingkang Chen,Cheng-Wei Kao,Tao Luo,Hang Zhang,Yan Long,Junwei Fu,Zhang Lin,Liyuan Chai,Ting-Shan Chan,Min Liu

    ENVIRONMENTAL SCIENCE-NANO（2024）

    Cent South Univ | Natl Synchrotron Radiat Res Ctr

    Cited 0|Views27
    Abstract
    Introducing –HSO4 to enhance the surface Lewis acidity can significantly improve the CF4 decomposition activity of ZrO2.
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    CO2 Reduction
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    Chat Paper
    【要点】：本研究开发了经硫酸氢根离子修饰的二氧化锆（S-ZrO2），提高了表面路易斯酸性，实现了在650℃下高效催化分解四氟甲烷（CF4），这一温度低于常见的γ-Al2O3催化剂，且该方法已通过实验和理论计算验证了其有效性。
    

    【方法】：采用表面酸度测试、原位红外光谱技术和密度泛函理论（DFT）模拟来表征和验证所开发的催化剂。
    

    【实验】：实验使用经硫酸氢根离子改性的二氧化锆（S-ZrO2）作为催化剂，在650℃条件下催化分解四氟甲烷（CF4），成功将其转化为非毒性的氟化氢（HF）和二氧化碳（CO2），该实验结果表明S-ZrO2催化剂在促进CF4分解方面具有优越性。