Biomass-derived carbon-supported Ni catalyst: an effective heterogeneous non-noble metal catalyst for the hydrogenation of nitro compounds

The biomass-derived carbon material supported Ni catalysts (Ni/C) demonstrated a high catalytic activity for the hydrogenation of nitro compounds into primary amines at room temperature.

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Electrocatalytic behaviour of CeZrOx-supported Ni catalysts in plasma assisted CO2 methanation

Catalysis Science & Technology ◽

10.1039/d0cy00312c ◽

2020 ◽

Vol 10 (14) ◽

pp. 4532-4543

Author(s):

Maria Mikhail ◽

Patrick Da Costa ◽

Jacques Amouroux ◽

Siméon Cavadias ◽

Michael Tatoulian ◽

...

Keyword(s):

Operating Time ◽

Ni Catalyst ◽

Dbd Plasma ◽

Ni Catalysts ◽

Co2 Methanation ◽

Supported Ni Catalyst ◽

Supported Ni Catalysts ◽

Supported Ni ◽

Electrocatalytic Behaviour

Plasma and thermo-catalytic methanation were assayed in the presence of a CeZrOx-supported Ni catalyst. High CO2 conversions and high methane yields were obtained under DBD plasma, and are maintained with time-on-stream over 100 h operating time.

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Effect of Pt Promotion on the Ni-Catalyzed Deoxygenation of Tristearin to Fuel-Like Hydrocarbons

Catalysts ◽

10.3390/catal9020200 ◽

2019 ◽

Vol 9 (2) ◽

pp. 200 ◽

Cited By ~ 1

Author(s):

Ryan Loe ◽

Kelsey Huff ◽

Morgan Walli ◽

Tonya Morgan ◽

Dali Qian ◽

...

Keyword(s):

Active Sites ◽

Ni Catalyst ◽

Catalyst Characterization ◽

Ni Catalysts ◽

Green Diesel ◽

Supported Ni Catalyst ◽

Spent Catalysts ◽

Adsorption Of Co ◽

Surface Metal ◽

Supported Ni

Pt represents an effective promoter of supported Ni catalysts in the transformation of tristearin to green diesel via decarbonylation/decarboxylation (deCOx), conversion increasing from 2% over 20% Ni/Al2O3 to 100% over 20% Ni-0.5% Pt/Al2O3 at 260 °C. Catalyst characterization reveals that the superior activity of Ni-Pt relative to Ni-only catalysts is not a result of Ni particle size effects or surface area differences, but rather stems from several other phenomena, including the improved reducibility of NiO when Pt is present. Indeed, the addition of a small amount of Pt to the supported Ni catalyst dramatically increases the amount of reduced surface metal sites, which are believed to be the active sites for deCOx reactions. Further, Pt addition curbs the adsorption of CO on the catalyst surface, which decreases catalyst poisoning by any CO evolved via decarbonylation, making additional active sites available for deoxygenation reactions and/or preventing catalyst coking. Specifically, Pt addition weakens the Ni-CO bond, lowering the binding strength of CO on surface Ni sites. Finally, analysis of the spent catalysts recovered from deCOx experiments confirms that the beneficial effect of Pt on catalyst performance can be partially explained by decreased coking and fouling.

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Mild and selective hydrogenation of nitriles into primary amines over a supported Ni catalyst

New Journal of Chemistry ◽

10.1039/c9nj05307g ◽

2020 ◽

Vol 44 (2) ◽

pp. 549-555 ◽

Cited By ~ 2

Author(s):

Jianjian Wang ◽

Qingjie Tang ◽

Shiwei Jin ◽

Yanxin Wang ◽

Ziliang Yuan ◽

...

Keyword(s):

High Activity ◽

Selective Hydrogenation ◽

Primary Amines ◽

Ni Catalyst ◽

Mild Conditions ◽

Supported Ni Catalyst ◽

Supported Ni ◽

Hydrogenation Of Nitriles

The mesoporous Al2O3 supported Ni catalyst demonstrated a high activity and selectivity for the hydrogenation of nitriles into primary amines under the mild conditions (60–80 °C and 2.5 bar H2) with ammonia as the additive.

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