About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Self-organizing Nano-architectured Materials
|
Presentation Title |
Hierarchically Porous Gold via 3D Printing and Dealloying for Selective Electrochemical Reduction of CO2 to CO with Enhanced Mass Transport |
Author(s) |
Jintao Fu, Shahryar Mooraj, Shuai Feng, Wen Chen, Eric Detsi |
On-Site Speaker (Planned) |
Jintao Fu |
Abstract Scope |
Au is one of the best heterogenous electrocatalysts for the selective reduction of CO2 to CO. Nanoporous Au (NP-Au) in particular is very promising for this purpose because of its high specific surface area and high density of active CO2-to-CO catalytic sites such as high-index facets, steps, and kinks. Most NP-Au electrocatalysts for CO2-to-CO conversion are made of thin films with thicknesses in the sub-micrometer range, but bulk and robust NP-Au electrodes are more desirable for large scale conversion. Additionally, conventional bulk NP-Au electrodes with unimodal pore size distribution suffer from kinetics issues associated with mass transport in or out of the material. In this talk, I will show how this kinetics issue can be overcome using hierarchically bulk porous Au with various pore size distributions made from direct ink writing-based 3D printing and dealloying. |
Proceedings Inclusion? |
Undecided |
Keywords |
Additive Manufacturing, Energy Conversion and Storage, Nanotechnology |