COMPARATIVE STUDY ON PRODUCTION METHODS OF MAYENITE CATALYST SUPPORTS

COMPARATIVE STUDY ON PRODUCTION METHODS OF MAYENITE CATALYST SUPPORTS

MANERA, C.; PERONDI, D.; TONELLO, A. P.; KERWALD, J.; BARCELLOS, T.; GODINHO, M.

Pôster:

The interesting catalytic properties of mayenite, related to itsparticular crystal structure, makes it suitable for use in catalyst synthesis. Theobjective of this study is to evaluate different preparation methods of a mayenitecatalyst support. Three methods were studied (solid mixing in a high energy mill,solid mixing in a conventional ball mill and hydrothermal method) and sampleswere characterized by phase identification (XRD) and textural properties. Theresults showed that single phase mayenite (SBET 30.3 m2/g) can be produced byhigh energy milling method. On the other hand, mayenite with a specific surfacearea of 57.0 m2/g can be produced by the simple method of conventional ballmilling. However, other phases were present in the sample. Mayenite producedwas found to be promising for application as support on catalyst production.

The interesting catalytic properties of mayenite, related to itsparticular crystal structure, makes it suitable for use in catalyst synthesis. Theobjective of this study is to evaluate different preparation methods of a mayenitecatalyst support. Three methods were studied (solid mixing in a high energy mill,solid mixing in a conventional ball mill and hydrothermal method) and sampleswere characterized by phase identification (XRD) and textural properties. Theresults showed that single phase mayenite (SBET 30.3 m2/g) can be produced byhigh energy milling method. On the other hand, mayenite with a specific surfacearea of 57.0 m2/g can be produced by the simple method of conventional ballmilling. However, other phases were present in the sample. Mayenite producedwas found to be promising for application as support on catalyst production.

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DOI: 10.5151/cobeq2018-PT.0491

Referências bibliográficas

• [1] CUCCINIELLO, R.; INTISO, A.; CASTIGLIONE, S.; GENGA, A.; PROTO, A. Total oxidation of trichloroethylene over mayenite (Ca12Al14O33) catalyst. Appl. Catal. B, v. 204, p. 167-172, 2017. IFTEKHAR, S.; GRINS, J.; SVENSSON, G.; LÖÖF, J.; JARMAR, T.; BOTTON, G. A.; ANDREI, C. M.; ENGQVIST, H. Phase formation of CaAl2O4 from CaCO3–Al2O3 powder mixtures. J. Eur. Ceram. Soc., v. 28, n. 4, p. 747-756, 2008. LI, C.; HIRABAYASHI, D.; SUZUKI, K. A crucial role of O2 − and O2 2− on mayenite structure for biomass tar steam reforming over Ni/Ca12Al14O33. Appl. Catal. B, v. 88, p. 351-360, 2009. OZAWA, K.; SAKAMOTO, N.; WAKIYA, N.; SUZUKI, H. Fabrication of 12CaO∙7Al2O3 powders with high specific surface area by sol-gel and ball-milling method. J. Ceram. Soc. Jpn., v. 119, n. 1390, p. 460-463, 2011. SCHMIDT, A.; LERCH, M.; EUFINGER, J. P.; JANEK, J.; TRANCA, I.; ISLAM, M. M.; BREDOW, T.; DOLLE, R. Chlorine ion mobility in Cl-mayenite (Ca12Al14O32Cl2): An investigation combining high-temperature neutron powder diffraction, impedance spectroscopy and quantum-chemical calculations. Solid State Ionics, v. 254, p. 48-58, 2014.

Como citar:

MANERA, C.; PERONDI, D. ; TONELLO, A. P.; KERWALD, J. ; BARCELLOS, T.; GODINHO, M.; "COMPARATIVE STUDY ON PRODUCTION METHODS OF MAYENITE CATALYST SUPPORTS", p-1859-1862. In: . São Paulo: Blucher, 2018.
ISSN 23591757, DOI 10.5151/cobeq2018-PT.0491