气候变化领域集成服务门户(CCPortal): Indigo as a Low-Cost Redox-Active Sorbent for Electrochemically Mediated Carbon Capture

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DOI	10.1002/adfm.202402355
	Indigo as a Low-Cost Redox-Active Sorbent for Electrochemically Mediated Carbon Capture
	Jayarapu, Krish N.; Mathur, Anmol; Li, Xing; Liu, Andong; Zhang, Lingyu; Kim, Jaeeun; Kim, Hyunah; Kuk, Su Keun; Liu, Yayuan
发表日期	2024
ISSN	1616-301X
EISSN	1616-3028
英文摘要	Climate change has driven the need for carbon capture to mitigate anthropogenic greenhouse gas emissions, yet current thermochemical methods are hampered by high energy intensities. Electrochemically mediated carbon capture (EMCC) utilizing redox-active carbon dioxide (CO2) carriers is an attractive alternative for carbon capture. Here, an economical vat dye compound, indigo, is presented, which can reversibly capture and release CO2 upon electrochemical reduction and oxidation, respectively. Electrode and electrolyte engineering strategies are utilized to improve the reversibility and stability of indigo for EMCC. A bench-scale prototypical fixed-bed carbon capture device is constructed to demonstrate indigo's EMCC performance under various practically relevant conditions, such as simulated flue gas and extremely dilute sources pertinent to direct air capture. A hybrid sorbent electrode-gas diffusion layer approach is revealed to alleviate CO2 mass transport limitations, achieving approximate to 80% CO2 capacity utilization under a 15% CO2 feed stream. Furthermore, a reactive-diffusive mass transport model is developed to illustrate engineering approaches that can be universally applied to optimize fixed-bed EMCC systems. This work advances the potential for a class of low-cost sorbents for EMCC while underscoring the importance of molecular, electrolyte, materials, and device engineering strategies to enable high-performance carbon capture. An economical vat dye compound, indigo, is demonstrated to reversibly capture and release carbon dioxide upon electrochemical modulations. Bench-scale prototypical fixed-bed carbon capture devices are demonstrated under various practically relevant conditions, and multiphysics modeling is used to guide better process design. image
英文关键词	carbon capture; device engineering; electrochemical separations; organic electrodes; transport modeling
语种	英语
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001219659500001
来源期刊	ADVANCED FUNCTIONAL MATERIALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298513
作者单位	Johns Hopkins University; Samsung Electronics; Samsung
推荐引用方式 GB/T 7714	Jayarapu, Krish N.,Mathur, Anmol,Li, Xing,et al. Indigo as a Low-Cost Redox-Active Sorbent for Electrochemically Mediated Carbon Capture[J],2024.
APA	Jayarapu, Krish N..,Mathur, Anmol.,Li, Xing.,Liu, Andong.,Zhang, Lingyu.,...&Liu, Yayuan.(2024).Indigo as a Low-Cost Redox-Active Sorbent for Electrochemically Mediated Carbon Capture.ADVANCED FUNCTIONAL MATERIALS.
MLA	Jayarapu, Krish N.,et al."Indigo as a Low-Cost Redox-Active Sorbent for Electrochemically Mediated Carbon Capture".ADVANCED FUNCTIONAL MATERIALS (2024).