Nano-structured Mn–Al and Co–Al Oxide Materials for Catalytic Ethanol Conversion

被引：8

作者：

Abd El-Hafiz D.R. ^{[1
]}

Riad M. ^{[1
]}

Mikhail S. ^{[1
]}

机构：

[1] Egyptian Petroleum Research Institute (EPRI), Cairo

来源：

Journal of Nanostructure in Chemistry | 2015年 / 5卷 / 4期

关键词：

Acetone; Coal; Ethanol; Mixed oxide; Mn–Al; Nano-particles;

D O I：

10.1007/s40097-015-0171-0

中图分类号：

学科分类号：

摘要：

Nano-sized mixed oxides of Manganese–aluminum and/ or cobalt–aluminum materials were prepared via co-precipitation method in basic medium associated with ultrasonic radiation to be used as catalysts for ethanol conversion reactions. The prepared materials were physically characterized via different technique. The results established the formation of spinel structure containing Co–Al oxides, while, plate and rod structures for that containing Mn–Al mixed oxides. Acetone is the main converted product at all reaction temperature on the two samples. On using Co–Al sample, the selectivity towards acetone formation reached the maximum value of ~85 % at 200 °C and decreased on increasing the reaction temperature to 500 °C in parallel with the increase in ethylene formation. Mn–Al mixed oxide shows a gradual increase in the selectivity towards the formation of acetone with the increase in reaction temperature (reached ~95 % at 500 °C). © 2015, The Author(s).

引用

页码：393 / 403

页数：10

共 30 条

[1]

Nakajima T., Nameta H., Mishima S., Matsuzaki I., Tanabe K., A highly active and highly selective oxide catalyst for the conversion of ethanol to acetone in the presence of water vapour, J. Mater. Chem., 4, pp. 853-858, (1994)

[2]

Yee A., Morrison S., Idriss H., A study of the reactions of ethanol on CeO2 andPd/CeO2 by steady state reactions, temperature programmed desorption, and in situ FT-IR, J. Catal., 186, pp. 279-295, (1999)

[3]

Nakajima T., Tanabe K., Yamaguchi T., Matsuzake I., Mishima S., Conversion of ethanol to acetone over zinc oxide–calcium oxide catalyst: optimization of catalyst preparation and reaction conditions and deduction of reaction mechanism, Appl. Catal. A. Gen., 52, pp. 237-248, (1989)

[4]

Karim A., Su Y., Sun J., Yang C., Strohm J., King D., Wang Y., A comparative study between Co and Rh for steam reforming of ethanol, Appl. Catal. B, 96, pp. 441-448, (2010)

[5]

Ni M., Leung D., Leung M., A review on reforming bio-ethanol for hydrogen production, Int. J. Hydrog. Ene., 32, pp. 3238-3247, (2007)

[6]

Nishiguchi T., Matsumoto T., Kanai H., Utani K., Matsumura Y., Shen W., Imamura S., Catalytic steam reforming of ethanol to produce hydrogen and acetone, Appl. Catal. A: Gen., 279, pp. 273-277, (2005)

[7]

Rybak P., Tomaszewska B., Machocki A., Grzegorczyk W., Denis A., Conversion of ethanol over supported cobalt oxide catalysts, Catal. Today, 176, pp. 14-20, (2011)

[8]

Sun J., Karimb A., Mei D., Engelhard M., Bao X., Wang Y., New insights into reaction mechanisms of ethanol steam reforming on Co–ZrO2, Appl. Catal. B: Environ., 162, pp. 141-148, (2015)

[9]

Asencios Y., Sun-Kou M., Synthesis of high-surface-area γ-Al2O3 from aluminum scrap and its use for the adsorption of metals: Pb(II), Cd(II) and Zn(II), Appl. Surf. Sci., 258, pp. 10002-11001, (2012)

[10]

Song H., Zhang L., Ozkan U., Effect of synthesis parameters on the catalytic activity of Co–ZrO2 for bio-ethanol steam reforming, Green Chem., 9, pp. 686-694, (2007)

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