Abstract
Porous zinc tin sulfide aerogel materials were constructed by metathesis reactions between Zn(acac)2•H2O and tetrahedral thiostannate cluster salts containing discrete [SnS4]4-, [Sn2S6]4-, and [Sn4S 10]4- units. Self-assembly reactions of the Zn 2+ linker and anionic thiostannate clusters yielded polymeric random Zn/Sn/S networks with gelation properties. Supercritical drying of the gels and solvent/counterion removal resulted in a metal sulfur framework. Zn 2SnxS2x+2 (x = 1, 2, 4) aerogels showed high surface areas (363-520 m2/g) and pore volumes (1.1-1.5 cm 3/g), and wide bandgap energies (2.8-3.2 eV). Scanning and transmission electron microscopy studies show the pores are micro- (d <2 nm), meso- (2 nm <d <50 nm), and macro- (d > 50 nm) regions. The zinc chalcogenide aerogels also possess high affinities toward soft heavy metals and reversible absorption of strong electron-accepting molecules.
| Original language | English |
|---|---|
| Pages (from-to) | 2447-2456 |
| Number of pages | 10 |
| Journal | Chemistry of Materials |
| Volume | 23 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - May 10 2011 |
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Keywords
- chalcogenides
- gas absorption
- gas separation
- heavy metal removal
- porous materials
ASJC Scopus subject areas
- Materials Chemistry
- Chemical Engineering(all)
- Chemistry(all)
Cite this
Selective surfaces : High-surface-area zinc tin sulfide chalcogels. / Oh, Youngtak; Bag, Santanu; Malliakas, Christos D.; Kanatzidis, Mercouri G.
In: Chemistry of Materials, Vol. 23, No. 9, 10.05.2011, p. 2447-2456.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Selective surfaces
T2 - High-surface-area zinc tin sulfide chalcogels
AU - Oh, Youngtak
AU - Bag, Santanu
AU - Malliakas, Christos D.
AU - Kanatzidis, Mercouri G
PY - 2011/5/10
Y1 - 2011/5/10
N2 - Porous zinc tin sulfide aerogel materials were constructed by metathesis reactions between Zn(acac)2•H2O and tetrahedral thiostannate cluster salts containing discrete [SnS4]4-, [Sn2S6]4-, and [Sn4S 10]4- units. Self-assembly reactions of the Zn 2+ linker and anionic thiostannate clusters yielded polymeric random Zn/Sn/S networks with gelation properties. Supercritical drying of the gels and solvent/counterion removal resulted in a metal sulfur framework. Zn 2SnxS2x+2 (x = 1, 2, 4) aerogels showed high surface areas (363-520 m2/g) and pore volumes (1.1-1.5 cm 3/g), and wide bandgap energies (2.8-3.2 eV). Scanning and transmission electron microscopy studies show the pores are micro- (d <2 nm), meso- (2 nm 50 nm) regions. The zinc chalcogenide aerogels also possess high affinities toward soft heavy metals and reversible absorption of strong electron-accepting molecules.
AB - Porous zinc tin sulfide aerogel materials were constructed by metathesis reactions between Zn(acac)2•H2O and tetrahedral thiostannate cluster salts containing discrete [SnS4]4-, [Sn2S6]4-, and [Sn4S 10]4- units. Self-assembly reactions of the Zn 2+ linker and anionic thiostannate clusters yielded polymeric random Zn/Sn/S networks with gelation properties. Supercritical drying of the gels and solvent/counterion removal resulted in a metal sulfur framework. Zn 2SnxS2x+2 (x = 1, 2, 4) aerogels showed high surface areas (363-520 m2/g) and pore volumes (1.1-1.5 cm 3/g), and wide bandgap energies (2.8-3.2 eV). Scanning and transmission electron microscopy studies show the pores are micro- (d <2 nm), meso- (2 nm 50 nm) regions. The zinc chalcogenide aerogels also possess high affinities toward soft heavy metals and reversible absorption of strong electron-accepting molecules.
KW - chalcogenides
KW - gas absorption
KW - gas separation
KW - heavy metal removal
KW - porous materials
UR - http://www.scopus.com/inward/record.url?scp=79955660651&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79955660651&partnerID=8YFLogxK
U2 - 10.1021/cm2003462
DO - 10.1021/cm2003462
M3 - Article
VL - 23
SP - 2447
EP - 2456
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 9
ER -