Aqueous phase reforming of ethylene glycol on Pt/CeO2–ZrO2: effects of cerium to zirconium molar ratio

作者: Seongho Jeon , Hyungwon Ham , Young-Woong Suh , Jong Wook Bae

DOI: 10.1039/C5RA07124K

关键词: CrystalliteOxideEthylene glycolPlatinumCatalysisCeriumDispersion (chemistry)Inorganic chemistryZirconiumMaterials science

摘要: The aqueous-phase reforming (APR) reaction of ethylene glycol was investigated on platinum-supported CeO2–ZrO2 mixed oxides with different molar ratios Ce/(Ce + Zr). main role the ratio Zr) found to be alter dispersion active platinum crystallites and concomitantly change hydrogen productivity stability. amounts surface oxygen species defect sites altered changed metal–support interactions between nano-scale vacancy CeO2–ZrO2. A larger a area were observed for Pt/CeO2–ZrO2 having 4 : 6, catalyst showed higher conversion by forming thermally stable through their strong surface.

参考文章(40)
Paolo Fornasiero, Alessandro Trovarelli, Catalysis by Ceria and Related Materials ,(2002)
Jonathan E. Spanier, Richard D. Robinson, Feng Zhang, Siu-Wai Chan, Irving P. Herman, Size-dependent properties of CeO 2-y nanoparticles as studied by Raman scattering Physical Review B. ,vol. 64, pp. 245407- ,(2001) , 10.1103/PHYSREVB.64.245407
George W. Huber, John W. Shabaker, Steven T. Evans, James A. Dumesic, Aqueous-phase reforming of ethylene glycol over supported Pt and Pd bimetallic catalysts Applied Catalysis B-environmental. ,vol. 62, pp. 226- 235 ,(2006) , 10.1016/J.APCATB.2005.07.010
Feng Zhang, Chih-Hao Chen, Joan M. Raitano, Jonathan C. Hanson, Wolfgang A. Caliebe, Syed Khalid, Siu-Wai Chan, Phase stability in ceria-zirconia binary oxide nanoparticles: The effect of the Ce3+ concentration and the redox environment Journal of Applied Physics. ,vol. 99, pp. 084313- ,(2006) , 10.1063/1.2190712
Lucien Saviot, Daniel B. Murray, Gianvito Caputo, María del Carmen Marco de Lucas, Nicola Pinna, THz nanocrystal acoustic vibrations from ZrO2 3D supercrystals Journal of Materials Chemistry C. ,vol. 1, pp. 8108- 8116 ,(2013) , 10.1039/C3TC31833H
Jose Manuel López, Alexander L. Gilbank, Tomás García, Benjamín Solsona, Said Agouram, Laura Torrente-Murciano, The prevalence of surface oxygen vacancies over the mobility of bulk oxygen in nanostructured ceria for the total toluene oxidation Applied Catalysis B-environmental. ,vol. 174, pp. 403- 412 ,(2015) , 10.1016/J.APCATB.2015.03.017
Sonia Letichevsky, Claudio A Tellez, Roberto R de Avillez, Maria Isabel P da Silva, Marco A Fraga, Lucia G Appel, None, Obtaining CeO2–ZrO2 mixed oxides by coprecipitation: role of preparation conditions Applied Catalysis B-environmental. ,vol. 58, pp. 203- 210 ,(2005) , 10.1016/J.APCATB.2004.10.014
Y NAGAI, T HIRABAYASHI, K DOHMAE, N TAKAGI, T MINAMI, H SHINJOH, S MATSUMOTO, Sintering inhibition mechanism of platinum supported on ceria-based oxide and Pt-oxide–support interaction Journal of Catalysis. ,vol. 242, pp. 103- 109 ,(2006) , 10.1016/J.JCAT.2006.06.002
R.R. Davda, J.W. Shabaker, G.W. Huber, R.D. Cortright, J.A. Dumesic, Aqueous-phase reforming of ethylene glycol on silica-supported metal catalysts Applied Catalysis B-environmental. ,vol. 43, pp. 13- 26 ,(2003) , 10.1016/S0926-3373(02)00277-1
R. Pérez-Hernández, F. Aguilar, A. Gómez-Cortés, G. Díaz, NO reduction with CH4 or CO on Pt/ZrO2–CeO2 catalysts Catalysis Today. ,vol. 107, pp. 175- 180 ,(2005) , 10.1016/J.CATTOD.2005.07.086