About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2026
|
| Presentation Title |
Fabrication of Hierarchical Electrodes using Nanoporous Copper and Enhancing Mechanical Strength via Nickel Electrodeposition |
| Author(s) |
Aishwarya Thotta Jayachandran, Bruno Azeredo |
| On-Site Speaker (Planned) |
Aishwarya Thotta Jayachandran |
| Abstract Scope |
Nanoporous copper (NP-Cu) electrodes have the potential to be used in energy storage, batteries and sensing applications. The high-surface-area NP-Cu electrode (5 m2/g) was fabricated by open-die casting a hybrid feedstock of NP-Cu powders (15 - 35nm pores), synthesized through chemical dealloying and copper nanoparticles. However, their poor mechanical strength hinders their broader applications. This study addresses this limitation by electrodepositing a mechanically durable metal such as Nickel using optimized pulsed current technique. Uniform electrodeposition of Ni (6% atomic concentration) on NP-Cu electrodes was achieved using optimal parameters of 250mA and 7% duty cycle, effectively mitigating ion depletion near electrode surface. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses, confirmed homogenous Ni distribution while retaining nanoporosity at the surface and cross-section. These electrodes demonstrated improved structural integrity, enabling machinability as opposed to their uncoated counterparts. Ongoing studies involve tensile testing, surface area analysis and further process optimization. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Electrometallurgy, Energy Conversion and Storage |