- By:
- Prasad Thapaliya, Bishnu ; Ivanov, Aleksandr ; Gao, Siyuan ; Chao, Hsin-Yun ; Lamm, Meghan E; Ganesan, Arvind ; Chi, Miaofang ; Meyer III, Harry M; Sun, Xiao-Guang ; Aytug, Tolga ; Dai, Sheng ; Mahurin, Shannon M
- Journal Name:
- ACS Sustainable Chemistry & Engineering
- Page Number:
- 7385-7394
- Volume:
- 13
- Issue Number:
- 20
- Publication Date:
- June 3, 2025
- View DOI Listing:
- https://doi.org/10.1021/acssuschemeng.4c10896
Abstract
The prevalence of sodium over lithium prompts exploration of sodium-ion batteries (SIBs) as a viable alternative to lithium-ion batteries (LIBs). Hard carbon has emerged as a promising anode material for SIBs, yet its synthesis poses sustainability challenges and emits pollutants. Here, we introduce CO2-derived porous carbon (graphitic and amorphous) as an anode for SIBs via electrochemical reduction of CO2 in a molten eutectic carbonate salt at a lower temperature that yields materials with controlled microstructure, morphology, and porosity conducive to energy storage. Our CO2-derived carbon demonstrates remarkable specific capacity, superior rate capability, and stable cycling performance as a SIB anode. This innovative strategy harnesses waste CO2 toward advancing SIB energy technology.
