Abstract
Aerogels are low-density porous materials, made mostly of air, for which hundreds of applications have been found in recent years. Inorganic oxide-based aerogels have been known for a long time, carbon aerogels were discovered in the early 1990s and sulfur- and selenium-based aerogels (chalcogels) are the most recent additions to this family. Here we present new aerogels made of Co(Ni)-Mo(W)-S networks with extremely large surface areas and porosity. These systems are formed by the coordinative reactions of (MoS 4) 2 and (WS 4) 2 with Co 2 and Ni 2 salts in non-aqueous solvents. We show that these low-density sponge-like networks can absorb conjugated organic molecules and mercury ions, and preferentially adsorb CO 2 over H 2, which illustrates their high potential as gas-separation media. The chalcogels are shown to be twice as active as the conventional sulfided Co-Mo/Al 2 O 3 catalyst for the hydrodesulfurization of thiophene.
| Original language | English |
|---|---|
| Pages (from-to) | 217-224 |
| Number of pages | 8 |
| Journal | Nature Chemistry |
| Volume | 1 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jun 2009 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
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Spongy chalcogels of non-platinum metals act as effective hydrodesulfurization catalysts. / Bag, Santanu; Gaudette, Amy F.; Bussell, Mark E.; Kanatzidis, Mercouri G.
In: Nature Chemistry, Vol. 1, No. 3, 06.2009, p. 217-224.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spongy chalcogels of non-platinum metals act as effective hydrodesulfurization catalysts
AU - Bag, Santanu
AU - Gaudette, Amy F.
AU - Bussell, Mark E.
AU - Kanatzidis, Mercouri G
PY - 2009/6
Y1 - 2009/6
N2 - Aerogels are low-density porous materials, made mostly of air, for which hundreds of applications have been found in recent years. Inorganic oxide-based aerogels have been known for a long time, carbon aerogels were discovered in the early 1990s and sulfur- and selenium-based aerogels (chalcogels) are the most recent additions to this family. Here we present new aerogels made of Co(Ni)-Mo(W)-S networks with extremely large surface areas and porosity. These systems are formed by the coordinative reactions of (MoS 4) 2 and (WS 4) 2 with Co 2 and Ni 2 salts in non-aqueous solvents. We show that these low-density sponge-like networks can absorb conjugated organic molecules and mercury ions, and preferentially adsorb CO 2 over H 2, which illustrates their high potential as gas-separation media. The chalcogels are shown to be twice as active as the conventional sulfided Co-Mo/Al 2 O 3 catalyst for the hydrodesulfurization of thiophene.
AB - Aerogels are low-density porous materials, made mostly of air, for which hundreds of applications have been found in recent years. Inorganic oxide-based aerogels have been known for a long time, carbon aerogels were discovered in the early 1990s and sulfur- and selenium-based aerogels (chalcogels) are the most recent additions to this family. Here we present new aerogels made of Co(Ni)-Mo(W)-S networks with extremely large surface areas and porosity. These systems are formed by the coordinative reactions of (MoS 4) 2 and (WS 4) 2 with Co 2 and Ni 2 salts in non-aqueous solvents. We show that these low-density sponge-like networks can absorb conjugated organic molecules and mercury ions, and preferentially adsorb CO 2 over H 2, which illustrates their high potential as gas-separation media. The chalcogels are shown to be twice as active as the conventional sulfided Co-Mo/Al 2 O 3 catalyst for the hydrodesulfurization of thiophene.
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U2 - 10.1038/nchem.208
DO - 10.1038/nchem.208
M3 - Article
VL - 1
SP - 217
EP - 224
JO - Nature Chemistry
JF - Nature Chemistry
SN - 1755-4330
IS - 3
ER -