Materials Reports  2020, Vol. 34 Issue (Z2): 84-87 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Preparation and Application of Ru/UiO-66 with Assistant of Atmospheric Pressure Hydrogen Plasma |
| ZHANG Xiuling, ZHAO Jing, XU Weiwei, LI Yanqin
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| College of Physical Science and Technology, Dalian University, Dalian 116622, China |
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Abstract Atmospheric hydrogen plasma (AHP) has been generally used in the preparation of supported noble metal catalytic materials. In this paper, Ru/UiO-66 catalyst was prepared by atmospheric pressure hydrogen plasma, and compared the structural and performance characteristics with the sample prepared by the traditional hydrogen thermal reduction method. The results of X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 adsorption-desorption isotherm, X-ray photoelectron spectroscopy (XPS) and transmission electron microscope (TEM) showed that both atmospheric pressure hydrogen plasma method and traditional hydrogen thermal reduction method can maintain the crystal structure, morphology, specific surface area and pore structure of porous material UiO-66. The particle size of Ru in the sample prepared by the hydrogen plasma system is smaller than that of thermal reduction method. It is noteworthy that the Ru/UiO-66 prepared by the two methods has similar catalytic activity, and the CO2 conversion can reach more than 70% under the plasma assisted in the CO2 methanation reaction, and the CH4 selectivity is more than 90%. It indicates that atmospheric pressure hydrogen plasma reduction technology can replace traditional thermal reduction to prepare the supported Ru/UiO-66 catalytic material with ultrafine metal particles. It can also save the long and tedious time of heating and cooling, and short the period of material treatment effectively.
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Published: 08 January 2021
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| Fund:This work was financially supported by the National Natural Science Foundation of China (21673026, 11605020), Zhang Xiuling Innovation Studio of Dalian City and Graduate Education and Teaching Reform Fund of Dalian University. |
| About author:: Xiuling Zhang is a professor in the College of Physical Science and Technology at Dalian University. She received her master degree (1998) and Ph.D. degree (2002) in Applied Chemistry from Dalian University of Technology. Her research interests are focused on greenhouse gas conversion by plasma, gas-liquid discharge, Ionic liquid, MOF, as well as functional nanomaterials enhanced fabrication by AP cold plasma. She was selected as the hundred-level of the hundred-level of Liao-ning BaiQianWan Talents (2007) and Outstanding Teacher of Liaoning Pro-vince (2012).Yanqin Li is an associate professor in the College Science and Technology at Dalian University. She received her master degree (2006) and Ph.D. degree (2014) in Plasma Physics from Dalian University of Technology. Her research interests are focused on gas-liquid discharge of Plasma and preparation of magnetic fluid. |
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