Development of cobalt catalyst supported on MgO–Ln2O3 (Ln = La, Nd, Eu) mixed oxide systems for ammonia synthesis

2021 ◽  
Author(s):  
Hubert Ronduda ◽  
Magdalena Zybert ◽  
Wojciech Patkowski ◽  
Andrzej Ostrowski ◽  
Przemysław Jodłowski ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Cobalt Catalyst ◽  
Ammonia Synthesis ◽  
Oxide Systems

Kinetic studies of ammonia synthesis over a barium-promoted cobalt catalyst supported on magnesium–lanthanum mixed oxide

2020 ◽  
Vol 114 ◽  
pp. 241-248
Author(s):  
Hubert Ronduda ◽  
Magdalena Zybert ◽  
Wojciech Patkowski ◽  
Aleksandra Tarka ◽  
Andrzej Ostrowski ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Cobalt Catalyst ◽  
Ammonia Synthesis ◽  
Kinetic Studies

scholarly journals A high performance barium-promoted cobalt catalyst supported on magnesium–lanthanum mixed oxide for ammonia synthesis

RSC Advances ◽  
2021 ◽  
Vol 11 (23) ◽  
pp. 14218-14228
Author(s):  
Hubert Ronduda ◽  
Magdalena Zybert ◽  
Wojciech Patkowski ◽  
Andrzej Ostrowski ◽  
Przemysław Jodłowski ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
High Performance ◽  
Cobalt Catalyst ◽  
Ammonia Synthesis

A high performance barium-promoted cobalt catalyst supported on magnesium–lanthanum mixed oxide for ammonia synthesis.

Ammonia synthesis over a Ba and Ce-promoted carbon-supported cobalt catalyst. Effect of the cerium addition and preparation procedure

2013 ◽  
Vol 303 ◽  
pp. 130-134 ◽  
Author(s):  
Magdalena Karolewska ◽  
Elżbieta Truszkiewicz ◽  
Maria Wściseł ◽  
Bogusław Mierzwa ◽  
Leszek Kępiński ◽  
...  
Keyword(s):  
Cobalt Catalyst ◽  
Ammonia Synthesis ◽  
Preparation Procedure ◽  
Catalyst Effect

Development of Non-Silicate Microporous Membranes with High Chemical Resistance

2006 ◽  
Vol 45 ◽  
pp. 2043-2048
Author(s):  
Undine Aust ◽  
Gerhard Tomandl
Keyword(s):  
Mixed Oxide ◽  
Chemical Resistance ◽  
Sol Gel ◽  
Positive Influence ◽  
Oxide Systems ◽  
Polymeric Sol ◽  
High Chemical Resistance ◽  
Gel Technique ◽  
Final Composition ◽  
Oxide Membranes

TiO2-ZrO2 mixed-oxide membranes were prepared via polymeric sol-gel technique. The final composition is already predefined during the preparation of the sols by using the corresponding quantities of the starting alkoxides. The mixed-oxide membranes were characterized by Xray diffraction, nitrogen sorption, and field emission scanning electron microscopy as well as filtration and corrosion tests. The observed results prove the positive influence on the investigated properties by addition of a second oxide. Depending on the composition of the mixed-oxide membranes, a remarkable increase in the crystallization temperatures is demonstrated. Using mixed-oxide systems, the retardation of grain growth is confirmed.

Carbon-supported cobalt catalyst for ammonia synthesis: Effect of preparation procedure

2006 ◽  
Vol 237 (1) ◽  
pp. 207-210 ◽  
Author(s):  
W RAROGPILECKA ◽  
E MISKIEWICZ ◽  
M MATYSZEK ◽  
Z KASZKUR ◽  
L KEPINSKI ◽  
...  
Keyword(s):  
Cobalt Catalyst ◽  
Ammonia Synthesis ◽  
Preparation Procedure

Efficient depolymerization of Kraft lignin to liquid fuels over an amorphous titanium-zirconium mixed oxide supported partially reduced nickel-cobalt catalyst

2019 ◽  
Vol 284 ◽  
pp. 293-301 ◽  
Author(s):  
Chaofeng Zhu ◽  
Xiaomeng Dou ◽  
Wenzhi Li ◽  
Xiaohao Liu ◽  
Qingqing Li ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Cobalt Catalyst ◽  
Kraft Lignin ◽  
Liquid Fuels ◽  
Nickel Cobalt ◽  
Titanium Zirconium

scholarly journals Effects of Promoter on Structural and Surface Properties of Zirconium Oxide-Based Catalyst Materials

Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2619
Author(s):  
Ekaterina S. Borovinskaya ◽  
Steffen Oswald ◽  
Wladimir Reschetilowski
Keyword(s):  
Surface Properties ◽  
Mixed Oxide ◽  
Zirconium Oxide ◽  
Active Sites ◽  
Surface Composition ◽  
One Pot ◽  
Oxide Systems ◽  
Catalytically Active ◽  
Temperature Programmed ◽  
Ternary Mixed Oxide

Ternary mixed oxide systems CuO/ZnO/ZrO2 and CuO/NiO/ZrO2 were synthesized by one-pot synthesis for a better understanding of the synthesis-property relationships of zirconium oxide-based catalyst materials. The prepared mixed oxide samples were analysed by a broad range of characterisation methods (XRD, N2-physisorption, Temperature-Programmed Ammonia Desorption (TPAD), and XPS) to examine the structural and surface properties, as well as to identify the location of the potential catalytically active sites. By XPS analysis, it could be shown that a progressive enrichment of the surface composition with copper takes place by changing from ZnO to NiO as a promoter. Thus, by addition of the second component, not only electronic but also the geometric properties of active sites, i.e., copper species distribution within the catalyst surface, can be affected in a desired way.

Cobalt Catalyst Doped with Cerium and Barium Obtained by Co-Precipitation Method for Ammonia Synthesis Process

2011 ◽  
Vol 141 (5) ◽  
pp. 678-684 ◽  
Author(s):  
Wioletta Raróg-Pilecka ◽  
Magdalena Karolewska ◽  
Elżbieta Truszkiewicz ◽  
Ewa Iwanek ◽  
Bogusław Mierzwa
Keyword(s):  
Cobalt Catalyst ◽  
Ammonia Synthesis ◽  
Precipitation Method ◽  
Synthesis Process ◽  
Co Precipitation
Sign in / Sign up

Export Citation Format

Share Document