Context. How simple organic matter appeared on Earth and the processes by which it transformed into more evolved compounds, ultimately led to emergence of life, is still an open topic. Different scenarios have been proposed, main one assumes that compounds were synthesized, either in gas phase or surfaces dust grains, during process star formation they incorporated larger bodies protoplanetary ...

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Deactivation of cobalt and nickel catalysts in Fischer-Tropsch synthesis and methanation JAVIER BARRIENTOS Akademisk avhandling som med tillstånd av KTH i Stockholm framlägges till offentlig granskning för avläggande av teknologie doktorsexamen fredagen den 23 september kl. " True wisdom comes to each of us when we realize how little we understand about life, ourselves, and the world around us....

Fischer-Tropsch catalyst preparation parameters, such as cobalt precursor and impregnation solvent, determine structure in fine catalytic performances of Co-based catalysts. Co particles 3–7 nm mean size were prepared by incipient wetness on surface-oxidized CNT. In this work, the crucial impact chemistry operating between support during properties is demonstrated, influence CNT surface charact...