Efficient production of hydrogen and multi-walled carbon nanotubes from ethanol over Fe/Al<sub>2</sub>O<sub>3</sub> catalysts期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Efficient production of hydrogen and multi-walled carbon nanotubes from ethanol over Fe/Al₂O₃ catalysts

Authors:	Gang WangHui Wang Weilong Li Zhaoyu RenJintao Bai Jinbo Bai

Affiliation:	^a Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials Science, Northwest University, Xi''an 710069, PR China ^b National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), National Photoelectric Technology and Functional Materials & Application International Cooperation Base, Institute of Photonics & Photon-Technology, Northwest University, Xi''an 710069, PR China ^c Lab. MSS/MAT, CNRS UMR 8579, Ecole Centrale Paris, 92295 Chatenay Malabry, France

Abstract:	Fe/Al₂O₃ catalysts with different Fe loadings (10-90 mol%) were prepared by hydrothermal method. Ethanol decomposition was studied over these Fe/Al₂O₃ catalysts at temperatures between 500 and 800 °C to produce hydrogen and multi-walled carbon nanotubes (MWCNTs) at the same time. The results showed that the catalytic activity and stability of Fe/Al₂O₃ depended strongly on the Fe loading and reaction temperature. The Fe(30 mol%)/Al₂O₃ and Fe(40 mol%)/Al₂O₃ were both the effective catalyst for ethanol decomposition into hydrogen and MWCNTs at 600 °C. Several reaction pathways were proposed to explain ethanol decomposition to produce hydrogen and carbon (including nanotube) at the same time.

Keywords:	Ethanol decomposition Fe/Al₂O₃ Hydrogen Carbon nanotubes
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