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Article Dans Une Revue Comptes Rendus. Chimie Année : 2016

Nitrogen-doped carbon nanotube spheres as metal-free catalysts for the partial oxidation of H2S

Résumé

Nitrogen-doped carbon nanotubes (N-CNTs) with macroscopic shaping were synthesized by a coagulation route using alginate as a coagulating agent and the as-synthesized sample was used as metal-free catalysts in the partial oxidation of H2S into elemental sulfur. The N-CNT beads display a relatively high desulfurization activity along with a high stability as a function of time on stream. The desulfurization performance of the N-CNT beads was also measured and compared to that of the Fe2O3/SiC catalyst. The N-CNT beads display a higher desulfurization activity under the similar reaction conditions with, however, lower sulfur selectivity due to the problem of diffusion of the reactant through the bead porosity.

Domaines

Catalyse
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Dates et versions

hal-04556525 , version 1 (23-04-2024)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Housseinou Ba, Cuong Duong-Viet, Yuefeng Liu, Jean-Mario Nhut, Pascal Granger, et al.. Nitrogen-doped carbon nanotube spheres as metal-free catalysts for the partial oxidation of H2S. Comptes Rendus. Chimie, 2016, Comptes Rendus Chimie, 19, pp.1303-1309. ⟨10.1016/j.crci.2015.09.022⟩. ⟨hal-04556525⟩
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