Poly(carbazole)-based anion-conducting materials with high performance and durability for energy conversion devices
- Title
- Poly(carbazole)-based anion-conducting materials with high performance and durability for energy conversion devices
- Author
- 오성근
- Keywords
- MEMBRANE FUEL-CELLS; EXCHANGE MEMBRANE; ALKALINE STABILITY; MULTIBLOCK COPOLYMERS; CHEMICAL-STABILITY; WATER; BLOCK; POLYAROMATICS; IONOMERS; CATALYST
- Issue Date
- 2020-10
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- ENERGY & ENVIRONMENTAL SCIENCE, v. 13, no. 10, page. 3633-3645
- Abstract
- Anion conducting polymers (ACPs) are essential materials for alkaline electrochemical energy technology such as anion-exchange membrane fuel cells (AEMFCs) and water electrolysers (AEMWEs). The aforementioned polymers are promising alternatives for proton exchange membrane-based systems due to the possibility of using platinum group metal-free electrocatalysts. However, there are still no reliable ACPs possessing the desired performance and stability, which is a major challenge for developing alkaline energy systems. Herein, we highlight an anion-exchange membrane and ionomer based on quaternised poly-carbazole (QPC-TMA) with a rigid ether-free and curved backbone structure comprised of carbazole monomers. The developed ACP exhibits excellent ionic conductivity, as well as chemical and mechanical stability. Moreover, the AEMFC using QPC-TMA shows excellent performance (1.61 W cm−2) compared with the other best-performing AEMFCs. In addition, the AEMWE using QPC-TMA demonstrates outstanding stability and state-of-the-art performance (3.5 A cm−2 at 1.9 V), which is the first report of an AEMWE that outperforms the best-performing proton-exchange membrane water electrolysers.
- URI
- https://pubs.rsc.org/en/content/articlelanding/2020/EE/D0EE01842Bhttps://repository.hanyang.ac.kr/handle/20.500.11754/171990
- ISSN
- 1754-5692; 1754-5706
- DOI
- 10.1039/d0ee01842b
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML