Citation: María L. Faroppa, Juan J. Musci, María E. Chiosso, Claudia G. Caggiano, Hernán P. Bideberripe, José L. García Fierro, Guillermo J. Siri, Mónica L. Casella. Oxidation of glycerol with H₂O₂ on Pb-promoted Pd/γ-Al₂O₃ catalysts[J]. Chinese Journal of Catalysis, ;2016, 37(11): 1982-1990. doi: 10.1016/S1872-2067(16)62531-7 shu

Oxidation of glycerol with H₂O₂ on Pb-promoted Pd/γ-Al₂O₃ catalysts

a CIBA (CIT UNNOBA, CONICET), Universidad Nacional del Noroeste de la Provincia de Buenos Aires, Newbery 261 (6000) Junín, Provincia de Buenos Aires, Argentina;
b CINDECA (CCT La Plata-CONICET, UNLP), Universidad Nacional de La Plata, Facultad de Ciencias Exactas, 47 N·257, 1900 La Plata, Argentina;
c PIDCAT Facultad de Ingeniería, Universidad Nacional de La Plata, 1 y 47, 1900 La Plata, Argentina;
d Instituto de Catálisis y Petroleoquímica, CSIC, Canto Blanco, E-28049 Madrid, España

Received Date: 1 June 2016
Revised Date: 20 August 2016

Fund Project: bato" Project 44-144-415), Argentina.This work was supported by CONICET (PIP 0276), UNLP (Projects X 700), UNNOBA (SIB 2924/14), and Ministry of Education and Sports (Call "Jorge Sá

A series of bimetallic Pd-Pb catalysts with a constant Pd content of 1 wt% and Pb/Pd atomic ratio from 0 to 1.6 supported on γ-Al₂O₃ were prepared and used for glycerol oxidation with H₂O₂ as the oxidizing agent at atmospheric pressure, 45℃ and pH=11. The morphology and dispersion of the catalysts were characterized by scanning electron microscopy-energy dispersive X-ray spectrosco-py (SEM-EDX) and transmission electron microscopy (TEM). The presence of an alloy phase in the bimetallic catalyst was detected by X-ray photoelectron spectroscopy (XPS). Glycerol conversion obtained with the monometallic Pd catalyst was 19%, which was increased to 100% with the addi-tion of Pb. The four bimetallic PdPb catalysts were able to oxidize glycerol to dihydroxyacetone (DIHA) and the selectivity to DIHA reached 59%, 58%, 34% and 25% for PdPb0.25, PdPb0.50, PdPb1.00 and PdPb1.60 catalysts, respectively.
- Palladium,
- Bimetallic palladium-lead catalyst,
- Hydrogen peroxide,
- Glycerol oxidation,
- Glyceric acid,
- Glycolic acid
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Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts

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Oxidation of glycerol with H₂O₂ on Pb-promoted Pd/γ-Al₂O₃ catalysts