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Enhanced CO2 Adsorption Performance on Hierarchical Porous ZSM-5 Zeolite
Energy & Fuels ( IF 5.2 ) Pub Date : 2017-11-17 00:00:00 , DOI: 10.1021/acs.energyfuels.7b02543 Qing Liu , Pingping He , Xingchi Qian , Zhaoyang Fei , Zhuxiu Zhang , Xian Chen , Jihai Tang 1 , Mifen Cui , Xu Qiao 1 , Yao Shi 2
Energy & Fuels ( IF 5.2 ) Pub Date : 2017-11-17 00:00:00 , DOI: 10.1021/acs.energyfuels.7b02543 Qing Liu , Pingping He , Xingchi Qian , Zhaoyang Fei , Zhuxiu Zhang , Xian Chen , Jihai Tang 1 , Mifen Cui , Xu Qiao 1 , Yao Shi 2
Affiliation
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Hierarchical porous ZSM-5 (HP-ZSM-5) was constructed using organosilanes as the growth inhibitors for CO2 capture. The properties of adsorbents were characterized by X-ray diffraction, N2 adsorption/desorption, scanning electron microscopy, temperature-programmed desorption of carbon dioxide, and 27Al magic angle spinning nuclear magnetic resonance. It was found that HP-ZSM-5 samples synthesized by organosilanes had a significant effect on the microstructure and morphology. CO2 adsorption capacity of HP-ZSM-5 was up to 58.26 cm3 g–1 at 0 °C and 1 bar, significantly higher than that of the ZSM-5 sample. The effective improvement of CO2 adsorption performance mainly originated from the micro-/mesoporous composite structure and complex surface morphology, which can provide low-resistant pathways for CO2 through the porous network. Besides, in situ Fourier transform infrared spectroscopy was carried out to study the adsorption process on adsorbents, and the results indicated that a faster physical adsorption process was achieved as a result of the introduction of mesopores.
中文翻译：
分层多孔ZSM-5沸石上增强的CO 2吸附性能
使用有机硅烷作为捕获CO 2的生长抑制剂，构建了分层多孔ZSM-5（HP-ZSM-5）。通过X射线衍射，N 2吸附/脱附，扫描电子显微镜，程序升温编程的二氧化碳脱附和27 Al幻角旋转核磁共振来表征吸附剂的性质。发现有机硅烷合成的HP-ZSM-5样品对微观结构和形态有显着影响。在0°C和1 bar下，HP-ZSM-5的CO 2吸附容量高达58.26 cm 3 g –1，显着高于ZSM-5样品。有效改善CO 2吸附性能主要源于微孔/中孔复合结构和复杂的表面形态，可为CO 2通过多孔网络提供低阻力途径。此外，采用原位傅里叶变换红外光谱研究吸附剂的吸附过程，结果表明，引入中孔可加快物理吸附过程。
更新日期：2017-11-19
中文翻译：
分层多孔ZSM-5沸石上增强的CO 2吸附性能
使用有机硅烷作为捕获CO 2的生长抑制剂，构建了分层多孔ZSM-5（HP-ZSM-5）。通过X射线衍射，N 2吸附/脱附，扫描电子显微镜，程序升温编程的二氧化碳脱附和27 Al幻角旋转核磁共振来表征吸附剂的性质。发现有机硅烷合成的HP-ZSM-5样品对微观结构和形态有显着影响。在0°C和1 bar下，HP-ZSM-5的CO 2吸附容量高达58.26 cm 3 g –1，显着高于ZSM-5样品。有效改善CO 2吸附性能主要源于微孔/中孔复合结构和复杂的表面形态，可为CO 2通过多孔网络提供低阻力途径。此外，采用原位傅里叶变换红外光谱研究吸附剂的吸附过程，结果表明，引入中孔可加快物理吸附过程。
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