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

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.

Insights into CO2 methanation mechanism on cubic ZrO2 supported Ni catalyst via a combination of experiments and DFT calculations

Fuel ◽  
2021 ◽  
Vol 283 ◽  
pp. 118867 ◽  
Author(s):  
Xianglan Xu ◽  
Yunyan Tong ◽  
Jin Huang ◽  
Jia Zhu ◽  
Xiuzhong Fang ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Ni Catalyst ◽  
Co2 Methanation ◽  
Supported Ni Catalyst ◽  
Supported Ni

The role of surface properties in CO2 methanation over carbon-supported Ni catalysts and their promotion by Fe

2020 ◽  
Vol 10 (21) ◽  
pp. 7217-7225 ◽  
Author(s):  
Liliana P. L. Gonçalves ◽  
Juliana P. S. Sousa ◽  
O. Salomé G. P. Soares ◽  
Oleksandr Bondarchuk ◽  
Oleg I. Lebedev ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Chemistry ◽  
Surface Properties ◽  
Ni Catalysts ◽  
Co2 Methanation ◽  
Supported Ni Catalysts ◽  
Improved Performance ◽  
Enhanced Surface ◽  
Supported Ni

CO2 methanation over activated carbon-supported Ni catalysts with enhanced surface chemistry properties and their improved performance by Fe promotion.

scholarly journals Promoting effect of Fe on supported Ni catalysts in CO2 methanation by in situ DRIFTS and DFT study

2020 ◽  
Vol 392 ◽  
pp. 266-277 ◽  
Author(s):  
Huong Lan Huynh ◽  
Jie Zhu ◽  
Guanghui Zhang ◽  
Yongli Shen ◽  
Wakshum Mekonnen Tucho ◽  
...  
Keyword(s):  
Dft Study ◽  
Promoting Effect ◽  
Ni Catalysts ◽  
Co2 Methanation ◽  
In Situ Drifts ◽  
Supported Ni Catalysts ◽  
Supported Ni

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

2020 ◽  
Vol 5 (1) ◽  
pp. 58-65
Author(s):  
Qingjie Tang ◽  
Ziliang Yuan ◽  
Shiwei Jin ◽  
Kaiyue Yao ◽  
Hanmin Yang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Nitro Compounds ◽  
Primary Amines ◽  
Metal Catalyst ◽  
Ni Catalyst ◽  
High Catalytic Activity ◽  
Noble Metal Catalyst ◽  
Ni Catalysts ◽  
Supported Ni Catalyst ◽  
Supported Ni

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.

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

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 200 ◽  
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.

A Supported Ni Catalyst Produced from Ni‐Al Hydrotalcite‐Like Precursor for Reduction of Furfuryl Alcohol to Tetrahydrofurfuryl Alcohol by NaBH 4 in Water

2021 ◽  
Vol 6 (4) ◽  
pp. 551-556
Author(s):  
Dezhang Ren ◽  
Jingyi Wang ◽  
Xuelei Jiang ◽  
Zhiyuan Song ◽  
Koyo Norinaga ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Ni Catalyst ◽  
Supported Ni Catalyst ◽  
Supported Ni
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