In Situ DRIFTS-MS Study of the Anaerobic Oxidation of Ethanol over Spinel Mixed Oxides

被引：85

作者：

Ochoa, Juliana Velasquez ^{[1
]}

Trevisanut, Cristian ^{[1
,2
]}

Millet, Jean-Marc M. ^{[2
]}

Busca, Guido ^{[3
]}

Cavani, Fabrizio ^{[1
,4
]}

机构：

[1] Univ Bologna, Dipartimento Chim Ind Toso Montanari, I-40136 Bologna, Italy

[2] Univ Lyon 1, UMR CNRS 5256, Inst Rech Catalyse & Environm Lyon, IRCELYON, F-69626 Villeurbanne, France

[3] Univ Genoa, Dipartimento Ingn Chim & Proc, Fac Ingn, I-16126 Genoa, Italy

[4] Consorzio INSTM, Res Unit Bologna, Florence, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 45期

关键词：

SOLAR HYDROGEN-PRODUCTION; STEAM-IRON PROCESS; REACTION-MECHANISM; METAL-OXIDES; BIO-ETHANOL; CATALYSTS; REDUCTION; ADSORPTION; KINETICS; NICKEL;

D O I：

10.1021/jp409831t

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The anaerobic oxidation of ethanol over spinel mixed oxides A(2+)Fe(2)(3+)O(4)(2-) (with A = Co2+, Ni2+, or Fe2+) was studied by means of in situ diffuse reflectance spectroscopy (DRIFTS) and mass spectrometry (MS). The nature of the surface species formed during the reaction and its related gas products were discussed. Different reaction pathways were proposed depending on the catalyst composition. Acetates appeared to be important surface intermediates in the case of the Ni ferrite which is at the same time the most basic and easily reducible catalyst from the set studied, whereas with Co and Fe ferrites, more direct pathways to oxidation products were evidenced but at higher temperatures.

引用

收藏

页码：23908 / 23918

页数：11

相关论文

共 43 条

[1] Phenol methylation over nanoparticulate CoFe2O4 inverse spinel catalysts: The effect of morphology on catalytic performance [J].

Ballarini, Nicola ;

Cavani, Fabrizio ;

Passeri, Sauro ;

Pesaresi, Lucilla ;

Lee, Adam F. ;

Wilson, Karen .

APPLIED CATALYSIS A-GENERAL, 2009, 366 (01) :184-192

[2] Hydrogen production from pyrolysis oil using the steam-iron process: a process design study [J].

Bleeker, Mariken ;

Gorter, Sander ;

Kersten, Sascha ;

van der Ham, Louis ;

van den Berg, Henk ;

Veringa, Hubert .

CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY, 2010, 12 (02) :125-135

[3] IR studies on the activation of C-H hydrocarbon bonds on oxidation catalysts [J].

Busca, G ;

Finocchio, E ;

Lorenzelli, V ;

Ramis, G ;

Baldi, M .

CATALYSIS TODAY, 1999, 49 (04) :453-465

[4] Infrared studies of the reactive adsorption of organic molecules over metal oxides and of the mechanisms of their heterogeneously-catalyzed oxidation [J].

Busca, G .

CATALYSIS TODAY, 1996, 27 (3-4) :457-496

[5] Nickel versus cobalt catalysts for hydrogen production by ethanol steam reforming: Ni-Co-Zn-Al catalysts from hydrotalcite-like precursors [J].

Busca, Guido ;

Costantino, Umberto ;

Montanari, Tania ;

Ramis, Gianguido ;

Resini, Carlo ;

Sisani, Michele .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (11) :5356-5366

[6] Combined production and purification of hydrogen from methanol using steam iron process in fixed bed reactor [J].

Campo, R. ;

Duran, P. ;

Plou, J. ;

Herguido, J. ;

Pena, J. A. .

JOURNAL OF POWER SOURCES, 2013, 242 :520-526

[7] Carbon monoxide-free hydrogen production via low-temperature steam reforming of ethanol over iron-promoted Rh catalyst [J].

Chen, Luwei ;

Choong, Catherine Kai Shin ;

Zhong, Ziyi ;

Huang, Lin ;

Ang, Thiam Peng ;

Hong, Liang ;

Lin, Jianyi .

JOURNAL OF CATALYSIS, 2010, 276 (02) :197-200

[8] Kinetics of mixed copper iron based oxygen carriers for hydrogen production by chemical looping water splitting [J].

Chiron, Francois-Xavier ;

Patience, Gregory S. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (14) :10526-10538

[9] Evaluation of the performance of Ni/La2O3 catalyst prepared from LaNiO3 perovskite-type oxides for the production of hydrogen through steam reforming and oxidative steam reforming of ethanol [J].

de Lima, Sania M. ;

da Silva, Adriana M. ;

da Costa, Lidia O. O. ;

Assaf, Jose M. ;

Jacobs, Gary ;

Davis, Burtron H. ;

Mattos, Lisiane V. ;

Noronha, Fabio B. .

APPLIED CATALYSIS A-GENERAL, 2010, 377 (1-2) :181-190

[10] Study of catalyst deactivation and reaction mechanism of steam reforming, partial oxidation, and oxidative steam reforming of ethanol over Co/CeO2 catalyst [J].

de Lima, Sania M. ;

da Silva, Adriana M. ;

da Costa, Lidia O. O. ;

Graham, Uschi M. ;

Jacobs, Gary ;

Davis, Burtron H. ;

Mattos, Lisiane V. ;

Noronha, Fabio B. .

JOURNAL OF CATALYSIS, 2009, 268 (02) :268-281

← 1 2 3 4 5 →