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Ir-Based Bimetallic Catalysts for Hydrogen Production through Glycerol Aqueous-Phase Reforming

Centro de Investigación Científica de Yucatán, Parque Científico y Tecnológico de Yucatán, Carretera Sierra Papacal–Chuburna Puerto, km 5. Sierra Papacal, 97302 Mérida, Yucatán, Mexico
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457-Zhong Shan Road, Dalian 116023, China
CONACYT-Departamento de Física Aplicada, CONACYT-CINVESTAV-IPN, 97310 Mérida, Yucatán, Mexico
Ingeniería en Biotecnología, Universidad Politécnica de Tlaxcala, San Pedro Xalcatzinco, 90180 Tepeyanco, Tlaxcala, Mexico
Author to whom correspondence should be addressed.
Catalysts 2018, 8(12), 613;
Received: 27 October 2018 / Revised: 20 November 2018 / Accepted: 27 November 2018 / Published: 3 December 2018
Iridium, Iridium-Nickel and Iridium-Copper catalysts were prepared by incipient wetness impregnation and evaluated in the aqueous-phase reforming of glycerol using La2O3 or CeO2 as supports. The catalysts were characterized by N2 physisorption, XRD, H2-TPR, XPS, and EDS. The reactions were carried out in a fixed bed reactor feeding a solution of glycerol (10 wt %) in water, at 270 °C and 58 bar. All IrNi catalysts showed higher activity than Ir and IrCu, and in general, La2O3 catalysts showed a better performance when compared to CeO2 catalysts. The highest hydrogen production yield was reached by bimetallic IrNi catalysts with over 250 µmol min−1 gcat−1 for La2O3 and 150 µmol min−1 gcat−1 for CeO2. View Full-Text
Keywords: iridium; glycerol; aqueous-phase reforming; hydrogen production iridium; glycerol; aqueous-phase reforming; hydrogen production
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Espinosa-Moreno, F.; Balla, P.; Shen, W.; Chavarria-Hernandez, J.C.; Ruiz-Gómez, M.; Tlecuitl-Beristain, S. Ir-Based Bimetallic Catalysts for Hydrogen Production through Glycerol Aqueous-Phase Reforming. Catalysts 2018, 8, 613.

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