Carbon Capture Science & Technology最新文献

{"title":"Machine learning-driven optimization of argon oxygen decarburization slag recycling for enhanced microalgal carbon sequestration","authors":"Wen-Long Xu ,&nbsp;Tian-Ji Liu ,&nbsp;Ya-Jun Wang ,&nbsp;Ya-Nan Zeng ,&nbsp;Liang-Yi Zhang ,&nbsp;Kai-Li Dong ,&nbsp;Yi-Tong Wang ,&nbsp;Jun-Guo Li","doi":"10.1016/j.ccst.2025.100502","DOIUrl":"10.1016/j.ccst.2025.100502","url":null,"abstract":"<div><div>The sustainable management of hazardous argon oxygen decarburization (AOD) slag demands urgent attention owing to its calcium-magnesium-silicon leaching risks in landfill scenarios. This study presents an innovative strategy for waste valorization by repurposing three modified AOD slag variants (raw, aged, and carbonated) as nutrient supplements for <em>Chlorella pyrenoidosa</em> cultivation. Moreover, process parameters in microalgae cultivation, such as algal characteristics and complex operational conditions, will affect its yield and productivity. Traditional methods struggle to enable comprehensive understanding and application. Thus, quantitative prediction was conducted using 96 sets of total CO₂ carbon sequestration data (80% for the training set and 20% for the test set). Combined with three machine learning models and the Shapley Additive explanation (SHAP) algorithm, the intrinsic mechanisms by which five leaching elements (Ca, Mg, Al, Si, and Cr) regulate the efficient carbon sequestration of microalgae were analyzed. Notably, the random forest model excelled well in predicting CO₂ storage and elemental leaching, with performance metrics exceeding 0.87. This approach integrating solid waste recycling, utilization and model development achieves three objectives: (1) establishing a circular economy pathway for metallurgical waste, (2) reducing microalgal cultivation costs through waste-derived nutrient substitution, and (3) providing a machine learning blueprint for hazardous waste valorization process optimization. The research results provide guidance for implementing a sustainable strategy of biocarbon capture while reducing industrial waste.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100502"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electroreduction of CO2 to C1 and C2 products on dual active sites","authors":"Naimat Ullah ,&nbsp;Munzir H. Suliman ,&nbsp;Sikandar Khan ,&nbsp;Zubair Ahmed Laghari ,&nbsp;Guillermo Diaz-Sainz ,&nbsp;Abdulmajeed Hendi ,&nbsp;Wan Zaireen Nisa Yahya ,&nbsp;Muhammad Usman","doi":"10.1016/j.ccst.2025.100532","DOIUrl":"10.1016/j.ccst.2025.100532","url":null,"abstract":"<div><div>Electrochemical CO₂ reduction (eCO₂RR) is a promising method for transforming CO₂ emissions into useful multicarbon products. This study involved the synthesis and evaluation of CuS/ZnS nanocomposites with varying compositions (CuS: ZnS = 1:1, 2:1, and 1:2) in both H-type and flow-cell electrolyzers. The catalyst with a 2:1 CuS/ZnS ratio (S2) exhibited excellent performance, with a Faradaic efficiency (FE) of 60 % for C₁ products and approximately 20 % for C₂ products (C₂H₄) at a current density of −280 mA·cm⁻² in the flow-cell configuration. The flow-cell arrangement significantly enhanced catalytic activity, suppressed hydrogen evolution, and increased selectivity for CH₄ and C₂H₄ at greater negative potentials. Augmented ethylene production was ascribed to Cu-rich active sites promoting efficient C–C coupling and increased CO₂ accessibility at gas diffusion electrodes (GDEs), corroborated by low charge-transfer resistance (∼1 Ω·cm²). This work emphasizes the pivotal importance of catalyst composition and reactor design, showcasing the 2:1 CuS/ZnS catalyst in a flow-cell format as a scalable and effective method for sustainable CO₂ conversion to multicarbon fuels. Density functional theory (DFT) calculations further validated the experimental results by revealing favorable adsorption energies and interactions between the CuS/ZnS catalyst and key intermediates in the CO₂ conversion process.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100532"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enabling e-fuels in Middle East and North Africa: Life cycle and techno-economic insights into CO2 capture and utilization","authors":"Loiy Al-Ghussain ,&nbsp;Bilal Rinchi ,&nbsp;Mohammad Alrbai ,&nbsp;Sameer Al-Dahidi ,&nbsp;Zifeng Lu","doi":"10.1016/j.ccst.2025.100538","DOIUrl":"10.1016/j.ccst.2025.100538","url":null,"abstract":"<div><div>This study evaluates the levelized cost and greenhouse gas (GHG) emission intensity of CO₂ capture and e-fuel production pathways across the Middle East and North Africa (MENA) region. Industrial point-source CO₂ capture shows favorable techno-economic performance, particularly from natural gas and oil processing facilities, with a regional weighted average cost of approximately 51 USD/tCO_2cap, making it a viable source of low-cost CO₂ for e-fuel production. Among MENA countries, Qatar, Oman, and the United Arab Emirates exhibit the lowest capture costs (38–44 USD/tCO_2cap), attributable to high emission volumes and low energy prices. The corresponding GHG emission intensity (EI) of point-source capture averages around 180 kgCO_2eq/tCO_2cap. Regarding e-fuel production, Fischer–Tropsch (FT) fuels are identified as the most expensive and carbon-intensive option, with average production costs exceeding 0.07 USD/MJ and EIs surpassing 30 gCO_2eq/MJ in most MENA countries. In contrast, ammonia synthesis offers the lowest emission intensity, ranging from 7.1 to 21.8 gCO_2eq/MJ depending on the energy source. Although none of the e-fuel pathways are currently cost-competitive with fossil fuels, industrial point-source CO₂ capture in the MENA region presents a promising near-term opportunity. Realizing this potential will require targeted policy measures, including the implementation of carbon pricing, the expansion of renewable energy capacity, and strategic infrastructure investments.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100538"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145516637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photothermal and electrothermal-driven thermochemical conversion of biomass: A critical review","authors":"Wenkai Xu,&nbsp;Qiang Hu,&nbsp;Yichen Dong,&nbsp;Jiawen Zeng,&nbsp;Yingquan Chen,&nbsp;Haiping Yang,&nbsp;Hanping Chen","doi":"10.1016/j.ccst.2025.100527","DOIUrl":"10.1016/j.ccst.2025.100527","url":null,"abstract":"<div><div>The integration of multiple renewable energy sources is crucial for achieving high-efficiency utilization of renewable energy, playing a vital role in the low-carbon energy transition. By integrating solar energy-derived photothermal and solar/wind-powered electrothermal processes with biomass conversion, this promising thermochemical approach can produce biochar, bio-oil, or syngas/hydrogen. This technology achieves zero or even negative carbon emissions as well as stores the renewable energies in the form of chemicals, thereby contributing to carbon neutrality. In this review, biomass thermochemical conversion driven by photothermal and electrothermal technologies are comprehensively reviewed. The reaction characteristics and current development status of biomass pyrolysis and gasification driven by photothermal, microwave, plasma, electromagnetic induction, and Joule heating are systematically compared and analyzed. Finally, the challenges and future development directions for photothermal- and electrothermal-driven biomass thermochemical conversion technologies are discussed, focusing on three key aspects: transformation mechanisms, process control and product valorization, and plant-scale implementation. This study provides insights into renewable energy-driven thermochemical biomass conversion, contributing to advances in energy storage and carbon neutrality efforts.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100527"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145320914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in concurrent CO2 sequestration and heavy metal mobilization during fly ash carbonation: A review","authors":"Qingqin Wang,&nbsp;Zichen Cao,&nbsp;Qingqing Li,&nbsp;Bing Song","doi":"10.1016/j.ccst.2025.100519","DOIUrl":"10.1016/j.ccst.2025.100519","url":null,"abstract":"<div><div>The escalating atmospheric CO₂ concentration and concomitant ecological crises underscore the urgent need for innovative carbon capture and utilization strategies. Fly ash (FA), a global industrial byproduct with annual production exceeding 1 billion tons, presents a promising opportunity for simultaneous CO₂ mineralization and heavy metal stabilization. This review systematically examines recent advancements in FA-mediated CO₂ sequestration coupled with heavy metal immobilization, addressing critical knowledge gaps in their synergistic mechanisms. We analyze the interplay between carbonation pathways and heavy metal fate, the effects of key reaction parameters on Ca²⁺ leaching efficiency and metal stabilization, and the impact of pre-treatment methods such as mechanical activation and acid/alkali modification. Furthermore, we review the application of theoretical calculations for atomic-scale mechanism analysis and process optimization via machine learning. Finally, we identify existing challenges—including kinetic limitations, pH-dependent metal mobilization, and economic viability—and propose future research directions for enhancing process efficiency and environmental safety. This review aims to facilitate the development of fly ash-based technologies for dual carbon sequestration and pollution control, contributing to sustainable industrial solid waste management.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100519"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of carbon capture in decarbonising EU industries: A review of projections for 2030 and 2050","authors":"Guillermo Martinez Castilla ,&nbsp;Marc Jaxa-Rozen","doi":"10.1016/j.ccst.2025.100528","DOIUrl":"10.1016/j.ccst.2025.100528","url":null,"abstract":"<div><div>Energy-intensive industries are expected to play a significant role in this deployment of carbon capture. However, the distribution of CO₂ capture deployment across industry sectors remains uncertain as it will depend on various factors, and sectoral projections available in the literature have a wide spread and are often not comparable. In response to the identified research gap, this work examines projections for CO₂ capture deployment within the EU industrial sectors, focusing on the cement, iron and steel, and chemical industries, for 2030 and 2050. We harmonize and discuss sectoral projections from seventeen scenarios, and in order to draw cross-sectoral conclusions, we compare them with 820 aggregated, EU-wide industry scenarios. The sectoral projections mapped project carbon capture to significantly reduce emissions in the cement sector by an average of 70 % by 2050. In the near term, projections for 2030 show the highest emission reductions in the chemical sector (10 %), followed by cement (7 %) and iron and steel (5 %). Sectoral projections align well with EU-wide scenarios, particularly with those complying with global 2 °C targets. Notably, many scenarios exceed the Net-Zero Industry Act target for 2030 and project capture levels beyond historical uptake trends of clean energy technologies. The findings highlight that while long-term projections consistently foresee large-scale deployment of CO₂ capture across EU industry, near-term expectations remain modest and risk falling short of the 2030 needs.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100528"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145262792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance analysis of oil recovery and CO2 retention in a greenfield residual oil zone: CO2-EOR in Tall Cotton Field (Permian Basin, West Texas, USA)","authors":"C. Özgen Karacan","doi":"10.1016/j.ccst.2025.100544","DOIUrl":"10.1016/j.ccst.2025.100544","url":null,"abstract":"<div><div>Residual oil zones (ROZs) can offer significant oil resources via enhanced oil recovery (EOR) as well as subsurface carbon dioxide (CO₂) retention during injection. If injected CO₂ is anthropogenic, the ROZs can offer a substantial geologic storage potential. The ROZs below the oil/water contact (OWC) of main pay zones (MPZ) in conventional reservoirs or brownfields, are more commonly developed for CO₂ injection and oil production and reported in the literature. However, CO₂-EOR in greenfield ROZs, reservoirs without a MPZ present, have rarely been developed for CO₂-EOR operation. The Tall Cotton Field of West Texas, Permian Basin, which started production in 2015 (Phase 1) and expanded in 2017 (Phase 2) from the San Andres Limestone, is one of the first examples of greenfield ROZs developed for EOR by injecting CO₂.</div><div>This paper analyses EOR and CO₂ retention performance of Tall Cotton Field using allocated injection and production data from inverted 5-spot well patterns of Phase-1 and -2 developments. Production and injection data allocated to each of the 28 identified patterns (nine 20-acre patterns for Phase-1, three 20-acre and sixteen 10-acre patterns for Phase-2) were analyzed for historical and forecasted oil recovery using ratio-trend decline analysis, and for CO₂ retention performance of the patterns. The allocated data were further used to calculate injected reservoir pore volume and void replacement ratios (VRR) for the analysis period. Quantitative results indicated that oil recovery factors of the 5-spot patterns varied between 4–10 %, and 5–30 % between the end of injection and the forecast periods, respectively. Storage of CO₂, on the other hand, increased to a mean value of ∼7130 MMscf per pattern in Phase-1 and to a mean storage of 3700 MMscf per pattern in Phase-2 until the end of injection, followed by a decline after the end of injection and into the forecast period. Resulting CO₂ utilization factors ∼6–50 Mscf/bbl were estimated at the end of injection. Overall, presented results suggested that developing greenfield ROZs for CO₂-EOR can be as promising as brownfield ROZs and mature MPZs for EOR and underground storage of injected CO₂. For Tall Cotton Field, results suggest that Phase-2 patterns generally outperformed Phase-1 for oil recovery factors, while Phase-1 performed better in CO₂ retention performance metrics. This is the first study in the literature that reports a detailed CO₂-EOR performance analysis of a greenfield ROZ in the Permian Basin, which can potentially allow for comparison with MPZs and brownfield ROZs.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100544"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy-coupled CO2 capture–conversion via membrane–adsorption integration: Quantitative benchmarks and pilot-scale design","authors":"Hailing Ma ,&nbsp;Xin Zhang ,&nbsp;Yao Tong ,&nbsp;Yew Mun Hung ,&nbsp;Xin Wang","doi":"10.1016/j.ccst.2025.100537","DOIUrl":"10.1016/j.ccst.2025.100537","url":null,"abstract":"<div><div>This review advances a unified framework for engineering low-energy, high-efficiency CO₂ capture–conversion platforms by co-designing membranes, adsorbents, and multi-field catalytic modules. We benchmark key performance indicators across materials and flowsheets—specific energy (kWh·t⁻¹-CO₂), capacity–selectivity trade-offs, cyclic stability, and space–time yield—and quantify integration benefits under harmonized boundaries (functional units, explicit ±compression, common base year).At 90 % capture efficiency with 10–15 % CO₂ feed, 40–60 % relative humidity, and a pressure drop of 0.2–0.4 bar, the membrane–adsorption architecture reduces specific energy by 30–40 % compared with membrane-only or adsorption-only baselines. It maintains both high capacity and selectivity and is compatible with VPSA or TDS regeneration. Design rules are distilled for Graphene Oxide (GO)/Reduced Graphene Oxide (rGO)–Metal Organic Framework (MOF) sorbents and Mixed-Matrix Membranes (MMMs), together with operating-window guidance that addresses H₂O/O₂ tolerance and interface matching. Along the conversion pathway, photocatalytic, thermocatalytic, and electrocatalytic subsystems are organized into a multi-field scheme in which structural and electronic-state tuning directs product selectivity and energy efficiency. A scenario-based Techno-Economic Analysis (TEA)/Life Cycle Assessment (LCA) compares centralized industrial flue gas, distributed biogas upgrading, and Direct Air Capture (DAC), with sensitivities to electricity/H₂ prices and sorbent lifetime. The resulting KPI toolkit and process maps aim to accelerate pilot-to-scale translation of integrated CO₂-to-chemicals systems.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100537"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon dioxide storage in depleted gas reservoirs in northeastern Alberta: Prioritizing CO2 storage sites within a CCS value chain framework","authors":"Zhuoheng Chen ,&nbsp;Wanju Yuan ,&nbsp;Xiaolong Peng ,&nbsp;Di Lu ,&nbsp;Hyojong Lee","doi":"10.1016/j.ccst.2025.100529","DOIUrl":"10.1016/j.ccst.2025.100529","url":null,"abstract":"<div><div>Thousands of depleted shallow gas reservoirs in northeast Alberta offer a promising CO₂ storage complements to deep saline aquifers, supporting carbon removal in the oilsands region. This study presents a three-step framework to evaluate their suitability: a) initial screening to ensure sufficient capacity and injectivity, and containment, b) multi-criteria ranking to identify the most strategic candidates, and c) source–sink (S–S) optimization to integrate spatial and economic constraints within a carbon capture and storage (CCS) value chain framework, enabling the prioritization of optimal storage sites. From an initial inventory of 4694 depleted pools, 874 reservoirs with a combined capacity of 1518 Mt CO₂ were shortlisted. These were aggregated into fields and further integrated into four distinct trends based on geological and engineering characteristics within a CCS value chain framework. The Lower Cretaceous Kirby–Leming rend emerged as the most favorable, with capacity of 772 Mt CO₂, strong injectivity, and economic viability. The Resdeln–Duncan trend followed closely, having a storage capacity of 366 Mt CO₂, offering similar geological advantages but located farther from proposed pipelines. The Craigend–Lindbergh trend, while less optimal geologically with smaller capacity of 227 Mt CO₂ storage, aligns well with the planned Oil Sands Pathways Alliance CO₂ hub, making it a strategic complementary site. In contrast, the Devonian carbonate reservoirs in the Granor–Ukalta trend ranked lowest due to poor injectivity, long transport distances and lower capacity of 154 Mt. Altogether, the top three trends offer nearly 1400 Mt of storage potential. This study pinpoints high-potential CO₂ storage zones, providing insights for regional carbon management strategies. Integrating shallow gas reservoirs into Alberta’s CCS infrastructure could accelerate near-term carbon removal while reinforcing long-term net-zero objectives.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100529"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene-doped membranes for direct air capture (m-DAC) of CO2","authors":"Omnya Al-Yafiee ,&nbsp;Priyanka Kumari ,&nbsp;Christophe Castel ,&nbsp;Ze-Xian Low ,&nbsp;Lei Wang ,&nbsp;Yichang Pan ,&nbsp;Konstantinos Papadopoulos ,&nbsp;Dionysios Vroulias ,&nbsp;Theophilos Ioannides ,&nbsp;George E. Romanos ,&nbsp;Eric Favre ,&nbsp;Georgios Karanikolos ,&nbsp;Ludovic F. Dumée","doi":"10.1016/j.ccst.2025.100541","DOIUrl":"10.1016/j.ccst.2025.100541","url":null,"abstract":"<div><div>Rising atmospheric CO₂ levels drive the urgent need for efficient capture technologies. Conventional methods such as amine-based absorption and solid desiccants are energy-intensive and costly. Membrane gas separation offers a promising alternative due to its process simplicity and potential cost reduction, though its application in Direct Air Capture (DAC) remains underexplored. Unlike cyclic sorbent-based DAC systems, membrane-based separation enables continuous CO2 capture without chemical regeneration steps. This approach offers a scalable, modular pathway for low-maintenance DAC operation. This study presents highly CO₂-selective and permeable polymeric membranes able to strip CO₂ from synthetic ambient air. The performance of the membranes was enhanced by incorporating amine-functionalized graphene oxide (GO) into micron-thin block-copolymer membranes, supporting interfacial engineering to increase CO₂ affinity and enhance flux via interstitial diffusion. The membranes achieved CO₂/N₂ selectivities of 68±2 and permeabilities of 21.27±0.5 GPU under DAC conditions (0.04 % v/v CO₂ in N₂). The stability of the performance in humid conditions up to 45 RH% was also tested and the selectivities found to remain on par with dry air testing, supporting the development of m-DAC as a viable route to support atmospheric CO₂ capture. A multi-stage membrane process simulation was also conducted to evaluate the scalability of the process, demonstrating its feasibility and cost for large-scale CO₂ capture.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"17 ","pages":"Article 100541"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}