Publications by authors named "George E P O'Connell"
Article Synopsis
- Lithium-sulfur (Li-S) batteries are seen as a promising battery technology due to their high energy density and cost-effectiveness, but they face challenges like slow reaction rates, uncontrolled lithium sulfide growth, and oxidation issues that reduce performance and lifespan.
- A new WO/WC nanocatalyst created through ultrafast Joule heating improves the electrocatalytic activity for lithium sulfide oxidation and helps manage its deposition, enhancing battery efficiency.
- This research highlights the importance of effective catalyst design for optimizing the performance of Li-S batteries in real-world applications.
The integration of graphene and metal-organic frameworks (MOFs) has numerous implications across various domains, but fabricating such assemblies is often complicated and time-consuming. Herein, a one-step preparation of graphene-MOF assembly is presented by directly impregnating vertical graphene (VG) arrays into the zeolitic imidazolate framework (ZIF) precursors under ambient conditions. This approach can effectively assemble multiple ZIFs, including ZIF-7, ZIF-8, and ZIF-67, resulting in their uniform dispersion on the VG with adjustable sizes and shapes.
View Article and Find Full Text PDFRecent Progress on Electrode Design for Efficient Electrochemical Valorisation of CO , O , and N.
Angew Chem Int Ed Engl
September 2023
CO reduction, two-electron O reduction, and N reduction are sustainable technologies to valorise common molecules. Their further development requires working electrode design to promote the multistep electrochemical processes from gas reactants to value-added products at the device level. This review proposes critical features of a desirable electrode based on the fundamental electrochemical processes and the development of scalable devices.
View Article and Find Full Text PDF