Steam reforming of methanol over supported Ni and Ni–Sn nanoparticles

Bobadilla, Luis F.; Palma, S.; Ivanova, Svetlana; Domínguez, M.I.; Romero-Sarria, Francisca; Centeno, M.A.; Odriozola, J.A.

doi:10.1016/j.ijhydene.2013.03.143

Cited by 43 publications

(38 citation statements)

References 47 publications

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“…The TPR profile of Ni monometallic catalyst sample shows two zones of reduction, the first one centered at 281°C with a shoulder at 242°C attributed to the reduction of NiO particles with different dispersion. The second zone centered at 380°C could be due to the reduction of free NiO cluster with a weak interaction with the support [43] formed during the thermal treatments.…”

Section: Temperature Programmed Reduction Tpr Analysesmentioning

confidence: 99%

Mono and bimetallic Cu-Ni structured catalysts for the water gas shift reaction

Arbeláez

Reina

Ivanova

et al. 2015

Applied Catalysis A: General

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Highlights-Efficient Cu-Ni catalysts supported on activated carbon for the water gas shift reaction.-Supressed methanation activity due to the presence of Cu.-Cu-Ni alloy as a key factor of the catalytic design.-Good stability and tolerance towards start/stop situations. AbstractThe water-gas shift (WGS) reaction over structured Cu, Ni, and bimetallic Cu-Ni supported on active carbon (AC) catalysts was investigated. The structured catalysts were prepared in pellets form and applied in the medium range WGS reaction. A good activity in the 180-350 °C temperature range was registered being the bimetallic Cu-Ni:2-1/AC catalyst the best catalyst. Page 2 of 38A c c e p t e d M a n u s c r i p tThe presence of Cu mitigates the methanation activity of Ni favoring the shift process. In addition the active carbon gasification reaction was not observed for the Cu-containing catalyst converting the active carbon in a very convenient support for the WGS reaction. The stability of the bimetallic Cu-Ni:2-1/AC catalyst under continuous operation conditions, as well as its tolerance towards start/stop cycles was also evaluated.

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Section: Temperature Programmed Reduction Tpr Analysesmentioning

confidence: 99%

Mono and bimetallic Cu-Ni structured catalysts for the water gas shift reaction

Arbeláez

Reina

Ivanova

et al. 2015

Applied Catalysis A: General

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“…Many catalysts have also been investigated to improve the efficiency of the process and to increase hydrogen production. Ni based catalysts have been reported to be effective for hydrogen production due to their high C-C bond breaking activity with significantly lower cost compared to noble metal catalysts such as Ru, Pt and Rh [14][15][16]. However, the main problem associated with Ni catalysts is that they suffer from a high deactivation rate caused by the formation of carbonaceous deposits.…”

Section: Introductionmentioning

confidence: 99%

Influence of metal addition to Ni-based catalysts for the co-production of carbon nanotubes and hydrogen from the thermal processing of waste polypropylene

Nahil

Williams

2015

Fuel Processing Technology

107

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ABSTRACT:This paper investigates the co-production of hydrogen and carbon nanotubes from the pyrolysis-catalytic gasification of waste plastics (polypropylene). We report on the influence of a range of metal additions to a nickel based catalyst based on ternary mixed oxides types catalyst support plays a significant role in the gasification process; weak metal support interaction (for the Ni-Mn-Al catalyst calcined at 300 °C) resulted in a lower hydrogen production and much higher yield of carbon products. In addition, the influence of steam injection rate on hydrogen and carbon nanotube production was investigated for the Ni-MnAl catalyst. Increasing the steam injection rate significantly increased hydrogen production and decreased carbon deposition. However, at lower steam injection rates, the quality of the product carbon nanotubes was improved.

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“…Lower catalytic activity of bimetallic catalysts activated in a mixture 5 % H 2 in argon performed at 500 °C is associated with a complete reduction of the catalytic system leading to the formation of larger nickel metal crystallites and the formation of alloy phases (Ni 3 Sn 2 and Pd 3 Sn) on the support surface, resulting in the complete reduction of the catalyst. The high stability of monometallic Ni and bimetallic Pd–Ni catalyst supported on SnO 2 –Al 2 O 3 activated in a 5 %H 2 –95 %Ar at 300 °C can be explained by the fact that Sn limits the deposition of carbon on the catalyst surface and prevents the formation of nickel carbide . We also confirmed in previous work that a bimetallic system containing alloy showed higher stability and activity.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, copper catalysts are promoted by palladium in order to improve selectivity to hydrogen generation due to the ability to improve the reducibility of the active phase component and formation of intermetallic alloys . Bobadilla et al . investigated the influence of Sn addition on catalytic activity of Ni/CeO 2 ‐MgO‐Al 2 O 3 catalysts in steam reforming of methanol.…”

Section: Introductionmentioning

confidence: 99%

Modern Ni and Pd–Ni Catalysts Supported on Sn–Al Binary Oxide for Oxy‐Steam Reforming of Methanol

et al. 2018

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Monometallic Ni and bimetallic Pd–Ni catalysts supported on mono‐SnO2 and SnO2–Al2O3 binary oxide are prepared using a wet impregnation and subsequent impregnation method. The catalysts are tested in oxy‐steam reforming of methanol (OSRM) and characterized. The activity measurements show that palladium‐promoted nickel catalysts supported on SnO2–Al2O3 exhibit high activity, selectivity towards hydrogen formation, and stability. The effect of Pd on reducibility, surface acidity, and morphology of the Ni supported catalyst, as well as its catalytic properties in OSRM, are discussed in detail.

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Steam reforming of methanol over supported Ni and Ni–Sn nanoparticles

Cited by 43 publications

References 47 publications

Mono and bimetallic Cu-Ni structured catalysts for the water gas shift reaction

Mono and bimetallic Cu-Ni structured catalysts for the water gas shift reaction

Influence of metal addition to Ni-based catalysts for the co-production of carbon nanotubes and hydrogen from the thermal processing of waste polypropylene

Modern Ni and Pd–Ni Catalysts Supported on Sn–Al Binary Oxide for Oxy‐Steam Reforming of Methanol

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