Solution synthesis of core-shell Co9S8@MoS2 catalystsElectronic supplementary information (ESI) available. See DOI: 10.1039/c6cy00311g
Core-shell Co 9 S 8 @MoS 2 unsupported catalysts have been prepared by a solution reaction in ethylene glycol. First, using a cobalt sulfide seed, amorphous core-shell CoS@MoS x ( x = 3-4) was prepared. Then, after thermal treatment, 20-50 nm-sized particles were obtained, in which MoS 2 was crystal...
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| Main Authors | , , , |
|---|---|
| Format | Journal Article |
| Published |
28.06.2016
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| Online Access | Get full text |
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| Abstract | Core-shell Co
9
S
8
@MoS
2
unsupported catalysts have been prepared by a solution reaction in ethylene glycol. First, using a cobalt sulfide seed, amorphous core-shell CoS@MoS
x
(
x
= 3-4) was prepared. Then, after thermal treatment, 20-50 nm-sized particles were obtained, in which MoS
2
was crystallized at the exterior of the Co
9
S
8
core. The solids show high catalytic activity in hydrodesulphurization, with an exceptionally high thermal stability. Thus, the high catalytic activity was preserved even after thermal treatment at 750 °C. A symmetric synergy model has been proposed with the catalytic sites located at the interface between the cobalt sulfide crystallites and the stacks of MoS
2
slabs.
Core-shell Co
9
S
8
@MoS
2
unsupported catalysts prepared by a solution reaction in ethylene glycol demonstrate high catalytic activity and exceptional thermal stability. |
|---|---|
| AbstractList | Core-shell Co
9
S
8
@MoS
2
unsupported catalysts have been prepared by a solution reaction in ethylene glycol. First, using a cobalt sulfide seed, amorphous core-shell CoS@MoS
x
(
x
= 3-4) was prepared. Then, after thermal treatment, 20-50 nm-sized particles were obtained, in which MoS
2
was crystallized at the exterior of the Co
9
S
8
core. The solids show high catalytic activity in hydrodesulphurization, with an exceptionally high thermal stability. Thus, the high catalytic activity was preserved even after thermal treatment at 750 °C. A symmetric synergy model has been proposed with the catalytic sites located at the interface between the cobalt sulfide crystallites and the stacks of MoS
2
slabs.
Core-shell Co
9
S
8
@MoS
2
unsupported catalysts prepared by a solution reaction in ethylene glycol demonstrate high catalytic activity and exceptional thermal stability. |
| Author | Afanasiev, P Geantet, C Hadj-Aïssa, A Dassenoy, F |
| AuthorAffiliation | Laboratoire de Tribologie et Dynamique des Systèmes de l'Ecole Centrale de Lyon Institut de Recherches sur la Catalyse et l'Environnement de Lyon IRCELYON CNRS - Université Lyon 1 UMR 5513 UMR 5256 |
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S
8
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2
unsupported catalysts have been prepared by a solution reaction in ethylene glycol. First, using a cobalt sulfide seed, amorphous... |
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| Title | Solution synthesis of core-shell Co9S8@MoS2 catalystsElectronic supplementary information (ESI) available. See DOI: 10.1039/c6cy00311g |
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