The effect of support and reaction conditions on aqueous phase reforming of polyol over supported Pt–Re bimetallic catalysts

Kim, Ho Dong; Park, Hyun Ju; Kim, Tae Wan; Jeong, Kwang Eun; Chae, Ho Jeong; Jeong, Soon Yong; Lee, Chang Ha; Kim, Chul Ung

doi:10.1016/j.cattod.2011.08.012

Cited by 54 publications

(43 citation statements)

References 16 publications

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“…Carbon supported catalysts displayed in general higher conversion of carbon into gas phase products at the same xylitol conversion level than Pt supported on Al 2 O 3 . A similar trend was observed by Kim et al 51 for APR of glycerol over Pt-Re catalysts supported on carbonaceous materials CMK-3, oxide supports as well as SiO 2 at 523 K, 45 bar and 2.0 h −1 .…”

Section: Catalysis Science and Technology Papersupporting

confidence: 89%

“…The supported Pt-Re catalysts studied by Kim et al 51 were placed in the following order based on the volumetric hydrogen production rates: Pt-Re/CMK-3 > Pt-Re/AC > Pt-Re/SiO 2 > Pt-Re/Al 2 O 3 . The authors noticed that carbon supports (both CMK-3 and AC) showed a better performance in terms of hydrogen production than alumina and silica supported catalysts.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

“…12,32,38 Carbon supports for Pt catalysts in the APR process have recently attracted much scientific attention. Such carbon supports as Vulcan active carbon (Pt 12,32,38,39 and Pt-M, M = Re, Ru, Os, Fe, Cu, Sn, Ir 15 ), activated carbon (Pt, 23,40,41 Pt-Re 42,43 ), carbon fibers (Pt and Pt-Ru), 44 single-walled carbon nanotubes SWNTs (Pt and Pt-Co), [45][46][47][48] ordered mesoporous carbon CMK-3 (Pt, 49 Pt-Mn, 50 Pt-Re 51 ) have been successfully investigated in the APR of polyols. These supports possess high hydrothermal stability under APR conditions (compared to the most investigated catalysts Pt on γ-Al 2 O 3 , where the alumina support might slowly transform into boehmite during water exposure at elevated temperatures and pressures 35,52 ), large surface area and good activity and hydrogen selectivity via APR.…”

Section: Introductionmentioning

confidence: 99%

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Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

Кирилин

Hasse

Tokarev

et al. 2014

Catal. Sci. Technol.

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aThe aqueous phase reforming (APR) of xylitol was studied over five Pt/C catalysts. The correlation between physico-chemical properties of the catalysts and catalytic performance was established. The Pt/C catalysts have different textural properties as well as different mean Pt cluster sizes and surface acidity. The average Pt cluster size was investigated by means of CO chemisorption as well as by TEM.The reaction was found to be structure sensitive and TOF linearly increases with increasing average Pt cluster size in the studied domain. The catalysts which possess higher surface acidity favoured higher rates of hydrocarbon production. On the contrary the Pt/C materials with lower acidities generated hydrogen with high selectivity and TOF.

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Section: Catalysis Science and Technology Papersupporting

confidence: 89%

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

Кирилин

Hasse

Tokarev

et al. 2014

Catal. Sci. Technol.

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“…These data suggest that the catalytic activity of APR is affected greatly by the structural properties of the supports. Kim et al (2012c) made similar conclusions. The activity of supported catalysts followed the order: CMK-3> AC>SiO 2 >Al 2 O 3 .…”

Section: Aqueous-phase Reforming Of Ethylene Glycolsupporting

confidence: 56%

“…de Vlieger et al (2012) found that the formation of acetic acid could be suppressed by Pt-Ni catalyst during the APR of ethylene glycol, and the H 2 selectivity and catalyst lifetime would be increased. Huber et al (2006) suggested that alloying Pt with either Ni, Co or Fe could promote the activity for hydrogen production by decreasing the heats of adsorption of CO and hydrogen, which (Wang et al, 2009;Kim et al, 2012c). The Pt-Re/CMK-3 catalyst has much higher activity on the APR of ethylene glycol.…”

Section: Aqueous-phase Reforming Of Ethylene Glycolmentioning

confidence: 99%

Progress in the aqueous-phase reforming of different biomass-derived alcohols for hydrogen production

Chen

et al. 2015

J. Zhejiang Univ. Sci. A

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Hydrogen as a clean, efficient, and sustainable energy has attracted considerable attention in recent years. Hydrogen production from aqueous-phase reforming (APR) of biomass-derived alcohols is preferable to other methods because of its wide renewable resource, mild reaction conditions, and low processing cost. In this paper, the progress in the APR process of different biomass-derived alcohols for H 2 production is reviewed, and the reaction mechanisms are briefly discussed for different catalysts. Pt-based catalysts exhibit high H 2 selectivity but low conversion of the alcohols. Ni-based catalysts exhibit high activity and conversion but low H 2 selectivity and yield.

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Hydrogen Production through Aqueous‐Phase Reforming of Ethylene Glycol in a Washcoated Microchannel

et al. 2013

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Aqueous-phase reforming (APR) of biocarbohydrates is conducted in a catalytically stable washcoated microreactor where multiphase hydrogen removal enhances hydrogen efficiency. Single microchannel experiments are conducted following a simplified model based on the microreactor concept. A coating method to deposit a Pt-based catalyst on the microchannel walls is selected and optimized. APR reactivity tests are performed by using ethylene glycol as the model compound. Optimum results are achieved with a static washcoating technique; a highly uniform and well adhered 5 μm layer is deposited on the walls of a 320 μm internal diameter (ID) microchannel in one single step. During APR of ethylene glycol, the catalyst layer exhibits high stability over 10 days after limited initial deactivation. The microchannel presents higher conversion and selectivity to hydrogen than a fixed-bed reactor. The benefits of using a microreactor for APR can be further enhanced by utilizing increased Pt loadings, higher reaction temperatures, and larger carbohydrates (e.g., glucose). The use of microtechnology for aqueous-phase reforming will allow for a great reduction in the reformer size, thus rendering it promising for distributed hydrogen production.

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The effect of support and reaction conditions on aqueous phase reforming of polyol over supported Pt–Re bimetallic catalysts

Cited by 54 publications

References 16 publications

Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

Progress in the aqueous-phase reforming of different biomass-derived alcohols for hydrogen production

Hydrogen Production through Aqueous‐Phase Reforming of Ethylene Glycol in a Washcoated Microchannel

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