Effect of Thermal Treatment on the Nickel State and CO Hydrogenation Activity of Titania-Supported Nickel Catalysts

1998 ◽  
Vol 178 (1) ◽  
pp. 34-48 ◽  
Author(s):  
Sui-Wen Ho ◽  
Chih-Yang Chu ◽  
Shih-Guan Chen
Keyword(s):  
Thermal Treatment ◽  
Co Hydrogenation ◽  
Nickel Catalysts ◽  
Hydrogenation Activity ◽  
Supported Nickel Catalysts

Influence of thorium on the surface structure and CO hydrogenation activity of silica-supported nickel catalysts

1990 ◽  
Vol 125 (2) ◽  
pp. 554-564 ◽  
Author(s):  
Jeffrey S. Ledford ◽  
Marwan Houalla ◽  
Andrew Proctor ◽  
David M. Hercules
Keyword(s):  
Surface Structure ◽  
Co Hydrogenation ◽  
Nickel Catalysts ◽  
Hydrogenation Activity ◽  
Supported Nickel Catalysts

The role of nitride species in the gas-phase furfural hydrogenation activity of supported nickel catalysts

2020 ◽  
Vol 487 ◽  
pp. 110889
Author(s):  
Carmen Pilar Jiménez-Gómez ◽  
Chiara Defilippi ◽  
Juan Antonio Cecilia ◽  
Ramón Moreno-Tost ◽  
Pedro Maireles-Torres ◽  
...  
Keyword(s):  
Gas Phase ◽  
Nickel Catalysts ◽  
Hydrogenation Activity ◽  
Furfural Hydrogenation ◽  
Supported Nickel Catalysts

scholarly journals Tuning Selectivity of Maleic Anhydride Hydrogenation Reaction over Ni/Sc-Doped ZrO2 Catalysts

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 366 ◽  
Author(s):  
Lili Zhao ◽  
Yin Zhang ◽  
Tianjie Wu ◽  
Min Zhao ◽  
Yongzhao Wang ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Surface Structure ◽  
Selective Hydrogenation ◽  
Succinic Anhydride ◽  
Nickel Catalysts ◽  
Impregnation Method ◽  
Hydrogenation Activity ◽  
Supported Nickel Catalysts ◽  
Zro2 Catalyst ◽  
Temperature Programmed

A series of Sc-doped ZrO2 supports, with Sc2O3 content in the range of 0 to 7.5% (mol/mol), were prepared using the hydrothermal method. Ni/Sc-doped ZrO2 catalysts with nickel loading of 10% (w/w) were prepared using impregnation method, and characterized with the use of XRD, Raman, H2 temperature-programmed reduction (H2-TPR), H2 temperature-programmed desorption (H2-TPD), XPS, and in situ FT-IR techniques. The catalytic performances of Ni/Sc-doped ZrO2 catalysts in maleic anhydride hydrogenation were tested. The results showed that the introduction of Sc3+ into ZrO2 support could effectively manipulate the distribution of maleic anhydride hydrogenation products. γ-butyrolactone was the major hydrogenation product over Sc-free Ni/ZrO2 catalyst with selectivity as high as 65.8% at 210 °C and 5 MPa of H2 pressure. The Ni/Sc-doped ZrO2 catalyst, with 7.5 mol% of Sc2O3 content, selectively catalyzed maleic anhydride hydrogenation to succinic anhydride, the selectivity towards succinic anhydride was up to 97.6% under the same reaction condition. The results of the catalysts’ structure–activity relationships revealed that there was an interdependence between the surface structure of ZrO2-based support and the C=O hydrogenation performance of the ZrO2-based supported nickel catalysts. By controlling the Sc2O3 content, the surface structure of ZrO2-based support could be regulated effectively. The different surface structure of ZrO2-based supports, resulted in the different degree of interaction between the nickel species and ZrO2-based supports; furthermore, the different interaction led to the different surface oxygen vacancies electron properties of ZrO2-based supported nickel catalysts and the C=O hydrogenation activity of the catalyst. This result provides new insight into the effect of ZrO2 support on the selective hydrogenation activity of ZrO2-supported metal catalysts and contributes to the design of selective hydrogenation catalysts for other unsaturated carbonyl compounds.

Pre-reforming of Liquefied Petroleum Gas over Magnesium Aluminum Mixed Oxide Supported Nickel Catalysts

2013 ◽  
Vol 33 (7) ◽  
pp. 1176-1182
Author(s):  
Xinxing WANG ◽  
Xueguang WANG ◽  
Xingfu SHANG ◽  
Wangxin NIE ◽  
Xiujing ZOU ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Nickel Catalysts ◽  
Liquefied Petroleum Gas ◽  
Supported Nickel Catalysts

Direct synthesis of hexitols from microcrystalline cellulose and birch over zirconium(iv) phosphate supported nickel catalysts and the mechanism study

2021 ◽  
Vol 23 (3) ◽  
pp. 1353-1360
Author(s):  
Xiaodong Liu ◽  
Xiaohao Liu ◽  
Ning Li ◽  
Peiyong Ma ◽  
Ying Zhang
Keyword(s):  
Microcrystalline Cellulose ◽  
Direct Synthesis ◽  
Nickel Catalysts ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Mechanism Study ◽  
Structure Activity ◽  
Supported Nickel Catalysts

A series of Ni/ZrPx catalysts with precisely regulated acid and hydrogenation sites were prepared to study the structure–activity relationship for sorbitol production directly from microcrystalline cellulose and raw biomass.

Highly Efficient LaxCe1–xO2–x/2 Nanorod-Supported Nickel Catalysts for CO Methanation: Effect of La Addition

2021 ◽  
Vol 35 (4) ◽  
pp. 3307-3314
Author(s):  
Yahong Han ◽  
Jinxian Zhao ◽  
Yanhong Quan ◽  
Shunan Yin ◽  
Shiping Wu ◽  
...  
Keyword(s):  
Nickel Catalysts ◽  
Co Methanation ◽  
Highly Efficient ◽  
Supported Nickel Catalysts ◽  
La Addition
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