Pathways of ethanol steam reforming over ceria-supported catalysts

Chiou, Josh Y.Z.; Siang, Jia-Yi; Yang, Shih-Yi; Ho, Kuan-Fu; Lee, Chin-Ling; Yeh, C.L.; Wang, Chen-Bin

doi:10.1016/j.ijhydene.2012.02.081

Cited by 46 publications

(23 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the insertion of Figure 1, the magnification of the NiO peaks at 43.3 • , used for the calculation of average crystallite sizes, was reported. The lack of diffraction peaks related to Pt phases could be attributed to low loading of metal, small size of Pt crystallites and high dispersion of metal particles [43]. The results of TEM-EDAX Transmission Electron Microscope-Energy Dispersive Analysis X-ray Spectroscopy (FEI Tecnai F20, San Martino Buon Albergo, Italy) analysis (discussed in a previous work and not shown), displayed that Pt signal is linked to Ni particles and this result suggests the formation of a solid solution between Pt and Ni [44].…”

Section: Catalysts Characterizationmentioning

confidence: 99%

Renewable Hydrogen from Ethanol Reforming over CeO2-SiO2 Based Catalysts

et al. 2017

View full text Add to dashboard Cite

Abstract:In this research, a bimetallic Pt-Ni/CeO 2 -SiO 2 catalyst, synthetized via wet impregnation, was successfully employed for the oxidative steam reforming of ethanol between 300 and 600 • C. The reaction performance of the Pt-Ni catalyst was investigated and compared with the Ni/CeO 2 -SiO 2 , Pt/CeO 2 -SiO 2 as well as CeO 2 -SiO 2 sample. The bimetallic catalyst displayed the best results in terms of hydrogen yield and by-products selectivity, thus highlighting the crucial role of active species (Pt and Ni) in promoting ethanol conversion and reaching the products distribution predicted by thermodynamics. The most promising sample, tested at 500 • C for more than 120 h, assured total conversion and no apparent deactivation, demonstrating the stability of the selected formulation. By changing contact time, the dependence of carbon formation rate on space velocity was also investigated.

show abstract

Section: Catalysts Characterizationmentioning

confidence: 99%

Renewable Hydrogen from Ethanol Reforming over CeO2-SiO2 Based Catalysts

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The amount carbon deposited (peak area) and the carbon components are closely related to catalytic deactivation [43]. Deactivation during ESR is generally believed to be related to coke formation from acetone [44]. If the number of cleaved C C bonds decreases gradually over the catalyst, the accumulated acetaldehyde would be converted to acetone, which acts as the precursor for coke.…”

Section: Ethanol Steam-reforming Reaction Over the Comentioning

confidence: 99%

Effect of MnOx in the catalytic stabilization of Co2MnO4 spinel during the ethanol steam reforming reaction

Kwak¹,

Lee²,

Park³

et al. 2015

Applied Catalysis A: General

View full text Add to dashboard Cite

“…Because of this, the Pt/CeO 2 catalyst attained the best ethanol conversion with respect to CeO 2 -supported Pd, Ir, and Co catalysts (Chiou, Siang, Ho, Lee, & Yeh, 2012). For these catalysts, the ethanol dehydrogenation and decomposition of acetaldehyde occur at a low temperature (300 C); therefore, high concentrations of CH 4 (29%) and CO (8%) prevent a high H 2 yield.…”

Section: Noble Metal Catalystsmentioning

confidence: 99%

“…Using Ir as active phase, CeO 2 Chiou et al, 2012;Wang et al, 2012;Zhang, Cai, Li, Xu, & Shen, 2008) and CeO 2 -Pr x O y were considered the most suitable supports. For example, Chiou et al (2012) prepared Ir/CeO 2 catalysts and found that CeO 2 prevents highly dispersed Ir particles from sintering by a strong IreCeO 2 interaction.…”

Section: Noble Metal Catalystsmentioning

confidence: 99%