| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2022
|
| Presentation Title |
Chemical Vapor Deposition Synthesis of Atomically Dispersed Single Metal Site Carbon Fibers for Highly Efficient Electrocatalysis |
| Author(s) |
Qiurong Shi, Sivasankara Rao Ede, David Kisailus |
| On-Site Speaker (Planned) |
Sivasankara Rao Ede |
| Abstract Scope |
The severe global energy and environmental crises have inspired numerous research efforts in developing highly efficient energy conversion devices like fuel cells. Currently, the nitrogen-coordinated single site M-N-C catalysts have demonstrated promising oxygen reduction reaction catalytic activity, which has been regarded as potential substitutes for Pt catalysts. However, the inferior performance in full cells hindered their practical applications. Here, we introduce a combination of electrospinning and chemical vapor deposition (CVD) for synthesizing hierarchically porous M-N-C (M = Fe, Co, Mn, etc.) electrocatalysts. The overall solid-synthesis significantly simplifies the processing methods while obtaining local atomic order within macro-structures using the in situ growth of zeolitic imidazolate frameworks (ZIFs). As expected, the as-obtained M-N-GCFs demonstrated remarkably enhanced catalytic activity in both the half-cell and fuel cells, which would open a brand-new avenue for accelerating their future applications in energy storage and conversion devices. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Nanotechnology, Other |