气候变化领域集成服务门户(CCPortal): Towards Immobilized Proton-Coupled Electron Transfer Agents for Electrochemical Carbon Capture from Air and Seawater

CCPortal

DOI	10.1149/1945-7111/ad4a0f
	Towards Immobilized Proton-Coupled Electron Transfer Agents for Electrochemical Carbon Capture from Air and Seawater
	Ali, Fawaz; Bilger, David; Patamia, Evan D.; Andrew, Trisha L.; Kwabi, David G.
发表日期	2024
ISSN	0013-4651
EISSN	1945-7111
起始页码	171
结束页码	5
卷号	171 期号:5
英文摘要	Electrochemical CO2 separation has drawn attention as a promising strategy for using renewable energy to mitigate climate change. Redox-active compounds that undergo proton-coupled electron transfer (PCET) are an impetus for pH-swing-driven CO2 capture at low energetic costs. However, multiple barriers hinder this technology from maturing, including sensitivity to oxygen and the slow kinetics of CO2 capture. Here, we use vapor phase chemistry to construct a textile electrode comprising an immobilized PCET agent, poly(1-aminoanthraquinone) (PAAQ), and incorporate it into redox flow cells. This design contrasts with others that use dissolved PCET agents by confining proton-storage to the surface of an electrode kept separate from an aqueous, CO2-capturing phase. This system facilitates carbon capture from gaseous sources (a 1% CO2 feed and air), as well as seawater, with the latter at an energetic cost of 202 kJ/molCO2, and we find that quinone moieties embedded within the electrode are more stable to oxygen than dissolved counterparts. Simulations using a 1D reaction-transport model show that moderate energetic costs should be possible for air capture of CO2 with higher loadings of polymer-bound PCET moieties. The remarkable stability of this system sets the stage for producing textile-based electrodes that facilitate pH-swing-driven carbon capture in practical situations.
英文关键词	carbon capture; proton-coupled electron transfer; pH swing; redox-active textiles; reactive vapor deposition
语种	英语
WOS研究方向	Electrochemistry ; Materials Science
WOS类目	Electrochemistry ; Materials Science, Coatings & Films
WOS记录号	WOS:001228962600001
来源期刊	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296571
作者单位	University of Michigan System; University of Michigan; University of Massachusetts System; University of Massachusetts Amherst
推荐引用方式 GB/T 7714	Ali, Fawaz,Bilger, David,Patamia, Evan D.,et al. Towards Immobilized Proton-Coupled Electron Transfer Agents for Electrochemical Carbon Capture from Air and Seawater[J],2024,171(5).
APA	Ali, Fawaz,Bilger, David,Patamia, Evan D.,Andrew, Trisha L.,&Kwabi, David G..(2024).Towards Immobilized Proton-Coupled Electron Transfer Agents for Electrochemical Carbon Capture from Air and Seawater.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,171(5).
MLA	Ali, Fawaz,et al."Towards Immobilized Proton-Coupled Electron Transfer Agents for Electrochemical Carbon Capture from Air and Seawater".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 171.5(2024).