Cha, Min Suc Park, Ji Eun Kim, Sungjun Han, Seung-Hui Shin, Sang-Hun Yang, Seok Hwan Kim, Tae-Ho Yu, Duk Man So, Soonyong Hong, Young Taik Yoon, Sang Jun Oh, Seong-Geun Kang, Sun Young Kim, Ok-Hee Park, Hyun S. Bae, Byungchan Sung, Yung-Eun Cho, Yong-Hun Lee, Jang Yong 2024-01-19T16:31:42Z 2024-01-19T16:31:42Z 2021-09-02 2020-10-01 1754-5692 https://pubs.kist.re.kr/handle/201004/118014 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 usingQPC-TMAshows excellent performance (1.61 W cm(-2)) compared with the other best-performing AEMFCs. In addition, the AEMWE usingQPC-TMAdemonstrates 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. English Royal Society of Chemistry MEMBRANE FUEL-CELLS EXCHANGE MEMBRANE ALKALINE STABILITY MULTIBLOCK COPOLYMERS CHEMICAL-STABILITY WATER BLOCK POLYAROMATICS IONOMERS CATALYST Poly(carbazole)-based anion-conducting materials with high performance and durability for energy conversion devices Article 10.1039/d0ee01842b 1 Energy & Environmental Science, v.13, no.10, pp.3633 - 3645 Energy & Environmental Science 13 10 3633 3645 scie scopus 000579868500027 2-s2.0-85096033068 Chemistry, Multidisciplinary Energy & Fuels Engineering, Chemical Environmental Sciences Chemistry Energy & Fuels Engineering Environmental Sciences & Ecology Article MEMBRANE FUEL-CELLS EXCHANGE MEMBRANE ALKALINE STABILITY MULTIBLOCK COPOLYMERS CHEMICAL-STABILITY WATER BLOCK POLYAROMATICS IONOMERS CATALYST 수전해 수소 전기화학 연료전지