| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
N-3: Synthesis of Mesoporous Metal-Silicates via Silicate-Exfoliation on Metal Hydroxides |
| Author(s) |
Hong-Ping Lin, Hsien-Ming Hsiao, Yun-Chung Shen |
| On-Site Speaker (Planned) |
Hsien-Ming Hsiao |
| Abstract Scope |
Here, we provided a new non-templating method to prepare the metal/silica mesostructural platelets of high surface area, large pore size and pore volume by hydrothermally treating the metal hydroxides precipitate in an alkaline silicate aqueous solution. According to our results, a transformation model of “silicate-exfoliation asymmetric metal-silicate bilayer bilayer curving” should open a new synthetic strategy to prepare different mesoporous metal-silicates in nanotubule, nanofoam or cured nanoplatelet morphology on an industrial scale. For application, the copper-silicate with large surface area ( 250–350 m2g-1), high accessibility to the environment, and well dispersed CuO active sites would exhibit high efficiency in toxic-gas absorption. The resulted copper-silicate exhibits a high absorption affinity to the toxic phosphine (PH3) gas releasing from integrate circular industry even at [PH3] 500 ppb. The MnO-silicate demonstrates a high catalytic activity toward ozone decomposition. The nickel-silicate can be used as high-performance catalyst for NH3 oxidation. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |