Wang, M;
Yang, K;
Ji, Y;
Liao, X;
Zhang, G;
Masteghin, MG;
Peng, N;
... Zhao, Y; + view all
(2023)
Developing highly reversible Li–CO2 batteries: from on-chip exploration to practical application.
Energy and Environmental Science
, 16
(9)
pp. 3960-3967.
10.1039/d3ee00794d.
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Abstract
Li-CO2 batteries (LCBs) hold significant potential for meeting the energy transition requirements and mitigating global CO2 emissions. However, the development of efficient LCBs is still in its early stages, necessitating the search for highly effective electrocatalysts and a deeper understanding of their mechanisms. To address these challenges, we have designed a versatile on-chip electrochemical testing platform, which enables simultaneous catalyst screening and in-situ analysis of the chemical composition and morphological evolution of reaction products. Six different metal nanoparticle catalysts were evaluated and it was found that Pt-based LCBs demonstrated a low overpotential (∼0.55 V). The reaction pathways and reversible nature of the LCBs were studied using in situ electrochemical Raman spectroscopy and atomic force microscopy, and were supported by ab initio calculations. As a result of the platform studies, LCB coin cells and pouch cells were fabricated which demonstrated high capacity, stability, and an energy efficiency of up to 90%. A multimodal lab-on-a-chip platform has a wide range of applications in other systems, such as metal-air batteries, electrocatalysts, fuel cells, and photoelectrochemical systems, thereby opening up new opportunities for rapid catalyst screening, mechanism investigation, and the development of practical applications.
| Type: | Article |
|---|---|
| Title: | Developing highly reversible Li–CO2 batteries: from on-chip exploration to practical application |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/d3ee00794d |
| Publisher version: | https://doi.org/10.1039/d3ee00794d |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10177073 |
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