The preparation & characterization of Au/HZSM-5 catalyst and its application in CH4 adsorption

DOI

10.2991/mebe-15.2015.195How to use a DOI?

Keywords

Au/HZSM-5; catalyst; methane; adsorption

Abstract

Au/HZSM-5 catalysts were prepared by negative deposition-precipitation method in this paper. XRD/Uv-vis/TEM/NH3-TPD/FT-IR technologies were used to analysis the characterization of prepared catalysts, and the evaluation of the catalysts was carried out by methane adsorption experiment. XRD and TEM showed that 2.0Au/ HZSM-5 catalyst calcined under N2 atmosphere held metal particle size about 5-10nm; Uv-vis indicated that the method of calcination changed Au from ion-valent state to zero-valent state, and the zero-valent absorption peak of 2.0Au/HZSM-5 catalyst calcined under N2 atmosphere was weaker, which indicated that its corresponding particle size was smaller; NH3-TPD showed that the peak area of relatively strong acid center of Au/HZSM-5 catalyst declined respect to HZSM-5; FT-IR showed that the Au/HZSM-5 catalysts could convert methane to adsorbed species containing olefin double bond at low temperature, showing better C-H bond activation capability for methane.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Aisha Nulahong
AU  - Wenlong Mo
AU  - Fengyun Ma
PY  - 2015/04
DA  - 2015/04
TI  - The preparation & characterization of Au/HZSM-5 catalyst and its application in CH4 adsorption
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 872
EP  - 876
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.195
DO  - 10.2991/mebe-15.2015.195
ID  - Nulahong2015/04
ER  -