| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advanced Ceramics for Environmental Remediation
|
| Presentation Title |
2-D and Layered Oxides for Environmental Catalysis Applications |
| Author(s) |
Scott Misture |
| On-Site Speaker (Planned) |
Scott Misture |
| Abstract Scope |
Oxide nanosheets derived from bulk layered oxides are promising for use in catalysis and energy storage. Starting from highly crystalline materials, we demonstrate that layered oxides can be activated via proton exchange or chemomechanically exfoliated to produce stable suspensions of nanosheets that can be flocculated through the addition of acids and salts. Homogeneous flocculation or gelation of the nanosheets yields either macroporous solids with surface areas reaching ~200 m2/g or mesoporous structures comprising primarily restacked nanosheets. Control over point defects becomes critical for tuning the photocatalytic and electrocatalytic kinetics. The talk will demonstrate how a range of 2-D or layered transition metal oxides can be optimized for various reactions related to hydrogen and CO2. |