Carbon Capture Science & Technology最新文献

{"title":"Techno-economic assessment of waste heat-powered direct air capture in the refinery and petrochemical sectors in Saudi Arabia","authors":"Naser Odeh ,&nbsp;Raphael W. Apeaning ,&nbsp;Feras Rowaihy","doi":"10.1016/j.ccst.2025.100451","DOIUrl":"10.1016/j.ccst.2025.100451","url":null,"abstract":"<div><div>Direct Air Capture (DAC) is increasingly recognized as a critical technology for achieving net-zero emissions, yet its large-scale deployment remains constrained by high energy and operational costs—particularly the need for reliable low-cost source of heat. This study presents a comprehensive technical and economic assessment of integrating DAC with low-grade industrial waste heat across Saudi Arabia’s refinery and petrochemical sectors. Using facility-level data, we estimate that approximately 84 TWh/year of waste heat is available—sufficient to support the capture of up to 42 MtCO₂ annually, offsetting around 34 % of current stationary emissions from these sectors. Our analysis shows that repurposing this underutilized thermal energy could reduce the average levelized cost of DAC (LCOD) for future commercial-scale systems to $148.5 per ton, significantly below current global DAC cost benchmarks. A marginal abatement cost curve reveals that the most cost-effective opportunities are concentrated in large, high-throughput industrial sites, emphasizing the importance of scale, centralized integration, and waste heat clustering. Further, our sensitivity analysis highlights the scale-up exponent, electricity price, and capital cost assumptions as the most influential factors driving cost outcomes. Overall, this study offers a scalable and actionable blueprint for DAC deployment in high-emitting industrial sectors and aligns closely with Saudi Arabia’s Circular Carbon Economy framework and 2060 net-zero target.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100451"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306283","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":"Harnessing microalgae to mitigate the environmental impact of the cement industry: Emission reduction and bio-cement production","authors":"Ve Van Le ,&nbsp;Maranda Esterhuizen ,&nbsp;Quynh-Giao Tran ,&nbsp;Jin-Ho Yun ,&nbsp;Man-Young Jung ,&nbsp;Sang-Ah Lee","doi":"10.1016/j.ccst.2025.100448","DOIUrl":"10.1016/j.ccst.2025.100448","url":null,"abstract":"<div><div>The cement industry has been the cornerstone of economic development since the Industrial Revolution. However, the calcination process used to produce cement raw materials releases various pollutants, such as carbon dioxide, nitrogen oxides, and sulfur oxides, which are key contributors to global warming. Therefore, innovative technologies are urgently needed to minimize the environmental impact of the cement industry. In recent years, microalgae have gained attention because of their advantages in recovering resources and reducing the impacts of industrial pollutants. The use of microalgae to address the environmental challenges associated with cement production remains largely overlooked in current reviews. This review summarizes the recent advances in the utilization of microalgae to address the environmental challenges posed by the cement industry. Microalgae offer two main pathways for environmental mitigation: the (i) production of bio-cement as an eco-friendly alternative for construction and (ii) conversion of cement flue gases into biomass feedstock with high-value downstream applications. We also identify existing challenges and propose an integrative “Microalgae–Bacteria Consortium” system as a sustainable strategy for the significant reduction of the environmental footprint of cement production. This approach has the potential to transform the cement industry into a more sustainable and eco-friendlier sector. Overall, microalgae provide an innovative and sustainable platform to revolutionize the cement industry into a greener sector, supporting the global shift toward a low-carbon, circular economy.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100448"},"PeriodicalIF":0.0,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222915","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":"A Highly Efficient Pt/TiO2-NaY-x Catalyst for RWGS reaction: Enhancement Effect of Adsorbent NaY-x on CO2 Hydrogenation Conversion","authors":"Qiuming Zhou ,&nbsp;Shuaishuai Lyu ,&nbsp;Hongwei Li ,&nbsp;Congcong Niu ,&nbsp;Rongjun Zhang ,&nbsp;Chaopeng Hou ,&nbsp;Binhang Yan ,&nbsp;Sen Wang ,&nbsp;Bo Peng ,&nbsp;Run Xu ,&nbsp;Mingfeng Li","doi":"10.1016/j.ccst.2025.100452","DOIUrl":"10.1016/j.ccst.2025.100452","url":null,"abstract":"<div><div>Selective removal of H₂O <em>in-situ</em> from the reverse water gas shift (RWGS) reaction system is an effective approach to intensify the CO₂ conversion dictated by thermodynamics. Here, a composite material is prepared by combining a water adsorbent zeolite NaY-2 which modified by hydrothermal treatment at 500°C with Pt/TiO₂ catalyst. The synthesized Pt/TiO₂-NaY-2 exhibits much higher activity and CO selectivity than conventional Pt/TiO₂. It shows the highest CO₂ conversion of 42.3% and consistently exceeds the corresponding thermodynamic equilibrium conversion (28.6%) over 120 h on stream with 100% CO selectivity at 340°C. The persistent catalytic enhancement is mainly attributed to the well aligning between the desorption temperature of H₂O on NaY-2 (270°C, 330°C) and the reaction temperature. The introduced NaY-2 demonstrates an electronic effect on Pt/TiO₂ during the reduction process and generates an electron-rich Pt species. The created Pt^δ− sites on Pt/TiO₂-NaY-2 possess higher intrinsic catalytic activity than Pt⁰ sites on Pt/TiO₂. The interaction also reduces Pt average particle size and thus weakens the adsorption of CO on Pt, which inhibits the methanation side reaction then improves the CO selectivity on Pt/TiO₂-NaY-2. The RWGS reactions on the synthesized Pt-based catalysts proceed through intermediate decomposition mechanism exposed by <em>in-situ</em> IR spectroscopy. The findings of this work provide information of high interest to guide future research on RWGS reaction intensified process via <em>in-situ</em> removal of H₂O.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100452"},"PeriodicalIF":0.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144469913","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":"Emerging carbon capture applications of aerogels in the oil and gas sector: A review of current trends and future prospects","authors":"Abeer․ A Alarawi ,&nbsp;Rima T․ Alfaraj ,&nbsp;Tawfik․ A Saleh ,&nbsp;Almohannad A․ Alghamdi","doi":"10.1016/j.ccst.2025.100435","DOIUrl":"10.1016/j.ccst.2025.100435","url":null,"abstract":"<div><div>Over the past three decades, the alarming surge in carbon dioxide (CO₂) emissions, estimated at between 330 and 350 gigatons annually, has sparked global concerns. This rapid increase, driven by industrial expansion, fossil fuel dependence, and deforestation, highlights the pressing need for scalable and economically viable carbon sequestration methods. With their unique properties, such as high porosity and surface area, aerogels have emerged as a beacon of hope for industrial CO₂ capture. However, their practical applications are hindered by challenges such as mechanical fragility and high production costs.</div><div>This literature review elucidates the environmental effects, economic viability, life cycle assessments, current trends, and future possibilities of aerogels used in CO₂ capture, particularly in the oil and gas industry, where their potential is significant. We demonstrate the existing methods for capturing and storing CO₂ within the sector. Additionally, we thoroughly analyze CO₂ capture performance using various adsorbents, including amines, metal-organic frameworks, carbon, zeolites, and aerogel-based options. This analysis considers factors such as CO₂ absorption capacity, energy required for regeneration, durability, economic feasibility, environmental implications, life cycle assessments, and distinct advantages. Moreover, we explore enhancements in aerogel fabrication methods, emphasizing large-scale affordability, cost-effectiveness, economic viability, and their respective advantages and disadvantages. We also provide an in-depth evaluation of different types of aerogels, highlighting their specific strengths and capabilities for CO₂ capture. We also present the results of integrating materials science, industrial engineering, and carbon mitigation policy by presenting various surface modification and integration techniques applied to aerogels to enhance their stability and effectiveness for CO₂ capture applications. Our analytical approach encompasses a techno-economic feasibility study and cost reduction strategies within key market sectors.</div><div>As the energy industry moves towards achieving net-zero emissions, we thoroughly assess the broad applications of aerogels in this field. We summarize existing case studies and ongoing research efforts focused on developing aerogels for large-scale CO₂ capture. Finally, we evaluate current challenges, environmental impacts, and economic considerations, offering a comprehensive outlook filled with the potential to enhance the use of aerogels in CO₂ capture and fostering optimism regarding the energy industry's future.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100435"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204311","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":"Outside Back Cover","authors":"","doi":"10.1016/S2772-6568(25)00096-X","DOIUrl":"10.1016/S2772-6568(25)00096-X","url":null,"abstract":"","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"15 ","pages":"Article 100457"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263008","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":"Highly efficient CO2 electroreduction to formate using Bismuth nanodots within ZIF-8 scaffold","authors":"Muhammad Usman ,&nbsp;Munzir H. Suliman ,&nbsp;Maryam Abdinejad ,&nbsp;Jesse Kok ,&nbsp;Hussain Al Naji ,&nbsp;Aasif Helal ,&nbsp;Zain H. Yamani ,&nbsp;Gabriele Centi","doi":"10.1016/j.ccst.2025.100450","DOIUrl":"10.1016/j.ccst.2025.100450","url":null,"abstract":"<div><div>Zeolitic imidazolate frameworks (ZIFs) based electrocatalysts for CO₂ reduction offer unique possibilities for developing advanced materials for this reaction due to their ordered nanoporosity and pore environments, tunable characteristics and high affinity for CO₂. Still, they were not investigated sufficiently. In this study, we developed a Bismuth nanodots embedded Zeolitic Imidazolate Framework-8 (BND-ZIF-8) electrocatalyst via a one-pot synthesis method for the electrochemical CO₂ reduction reaction (eCO₂RR). Comprehensive spectroscopic and electrochemical characterization confirmed the successful integration of Bismuth into the ZIF-8 matrix. The electrocatalytic performance of the BND-ZIF-8 was assessed in multiple reactor typologies such as H-cell, flow cell, and membrane electrode assembly (MEA) setups. Remarkable differences in the performances in the three cell configurations are evidenced. Notably, the MEA configuration exhibited a marked enhancement in formate selectivity, achieving a Faradic efficiency (FE) of up to 91 % at a current density of −150 mA cm^‒². This work underscores the potential of Bi-ZIF-8 in advancing eCO₂RR while remarking on the crucial importance of the appropriate type of electrocatalytic experiments in assessing the material performance.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100450"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222916","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":"Electrochemical mineral carbonation: A sustainable approach to CO₂ capture and utilization","authors":"Junhyeok Choi ,&nbsp;Seongeom Jeong ,&nbsp;Semi Jang ,&nbsp;Chanhyuk Park ,&nbsp;Sanghyun Jeong ,&nbsp;Sungju IM","doi":"10.1016/j.ccst.2025.100444","DOIUrl":"10.1016/j.ccst.2025.100444","url":null,"abstract":"<div><div>Mineral carbonation for CO₂ capture and utilization often requires high temperatures and pressures, necessitating alternative approaches. Electrochemical carbon capture has emerged as a promising technology due to its high efficiency and selectivity. However, its high capital expenditure (CAPEX) remains a challenge. In this study, carbon cloth (CC) electrodes were evaluated for their potential to enhance carbon capture, mineralization, and hydrogen production. The stability of conductive CC was confirmed as a substitute electrode under strong acidic and basic conditions, maintaining consistent contact angle and surface resistance. CC-based electrodes facilitated carbonate formation by inducing pH shifts through applied currents, achieving mineralization and hydrogen production efficiencies comparable to conventional methods. Furthermore, CC-based electrochemical systems demonstrated reduced environmental impacts, including lower global warming potential, toxicity, and eutrophication. These finding highlight the potential of CC-based electrodes as a cost-effective and sustainable alternative for electrochemical carbon capture, contributing to climate change mitigation and sustainable development.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100444"},"PeriodicalIF":0.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144230575","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":"SAGE-Amine: Generative Amine design with multi-property optimization for efficient CO2 capture","authors":"Hocheol Lim ,&nbsp;Hyein Cho ,&nbsp;Jeonghoon Kim ,&nbsp;Kyoung Tai No","doi":"10.1016/j.ccst.2025.100447","DOIUrl":"10.1016/j.ccst.2025.100447","url":null,"abstract":"<div><div>Efficient CO₂ capture is vital for mitigating climate change, with amine-based solvents being widely used due to their strong reactivity with CO₂. However, optimizing key properties such as basicity, viscosity, and absorption capacity remains challenging, as traditional methods rely on labor-intensive experimentation and predefined chemical databases, limiting the exploration of novel solutions. Here, SAGE-Amine was introduced, a generative modeling approach that integrates Scoring-Assisted Generative Exploration (SAGE) with quantitative structure-property relationship models to design new amines tailored for CO₂ capture. Unlike conventional virtual screening restricted to existing compounds, SAGE-Amine generates novel amines by leveraging autoregressive natural language processing models trained on amine datasets. SAGE-Amine identified known amines for CO₂ capture from scratch and successfully performed single-property optimization, increasing basicity or reducing viscosity or vapor pressure. Furthermore, it facilitated multi-property optimization, simultaneously achieving high basicity with low viscosity and vapor pressure. The 10 top-ranked amines were suggested using SAGE-Amine and their thermodynamic properties were further assessed using COSMO-RS simulations, confirming their potential for CO₂ capture. These results highlight the potential of generative modeling in accelerating the discovery of amine solvents and expanding the possibilities for industrial CO₂ capture applications.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100447"},"PeriodicalIF":0.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190497","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":"Techno-economic assessment of high temperature heat pumps integrated in MEA-based post-combustion CO2 capture for cement plant","authors":"Riccardo Cremona ,&nbsp;Edoardo De Lena ,&nbsp;Antonio Conversano ,&nbsp;Maurizio Spinelli ,&nbsp;Matteo C. Romano ,&nbsp;Manuele Gatti","doi":"10.1016/j.ccst.2025.100446","DOIUrl":"10.1016/j.ccst.2025.100446","url":null,"abstract":"&lt;div&gt;&lt;div&gt;This study presents a techno-economic assessment of solvent-based (MEA) post-combustion CO₂ capture integration within cement production process, exploring both conventional natural gas (NG) boiler configurations and innovative high-temperature heat pump (HTHP) solutions for thermal energy supply. Heat Pumps exploit the low-temperature waste heat from the cement plant and the capture unit as thermal source in the evaporator. The following options are assessed, either individually or in combination, as alternatives to the boiler for providing the steam required for solvent regeneration: (i) a lean vapor compression (LVC) system integrated within the capture process itself; (ii) a closed Reverse Rankine heat pump; (ii) a cascade system combining a bottoming closed-loop reverse Rankine cycle heat pump with a topping mechanical vapor recompression (MVR) system. Process simulations and equipment sizing are performed with a validated rate-based model of the absorption process in Aspen Plus and the economic analysis is carried out with a referenced bottom-up methodology. The cost-effectiveness of each technology is evaluated in terms of cost of CO&lt;sub&gt;2&lt;/sub&gt; avoidance (CCA), clinker cost increment (∆CC) and cost of CO&lt;sub&gt;2&lt;/sub&gt; capture (COC). For the conventional steam supply with NG boiler, two positions for the capture plant are assessed: tail end (Case #1 - Tail end) and integrated upstream the raw mill (Case #2 - Integrated). The best configuration with steam generation via NG boiler is case #2 with LVC at a flash pressure of 0.8 bar, resulting in an incremental cost of clinker of 62.1 €/t&lt;sub&gt;clk&lt;/sub&gt; and a CCA of 149.6 €/t&lt;sub&gt;CO2&lt;/sub&gt;. The integration of HTHPs offers significant benefits in terms of energy efficiency and cost competitiveness. The comparative evaluation of multiple HTHP configurations, including reverse Rankine cycle heat pumps and mechanical vapor recompression (MVR) systems, shows that the most viable solution is an MVR-based HTHP combined with LVC. Fuel consumption for solvent regeneration of around 100 MW&lt;sub&gt;th&lt;/sub&gt; is replaced by an additional electricity demand of 26.9 MW&lt;sub&gt;el&lt;/sub&gt; in the best case. The CO&lt;sub&gt;2&lt;/sub&gt; avoidance rate of the overall cement plant is reduced from almost 91 % to 89 % due to the increased Scope 2 emissions, with the assumed electricity carbon intensity of 100 kg&lt;sub&gt;CO2&lt;/sub&gt;/MWh. With baseline NG and electricity prices of 40 €/MWh and 100 €/MWh respectively, the cost of CO&lt;sub&gt;2&lt;/sub&gt; avoidance and incremental clinker cost are 125.9 €/t&lt;sub&gt;CO2&lt;/sub&gt; and 42.1 €/t&lt;sub&gt;clk&lt;/sub&gt;, respectively. These findings provide insights into the techno-economic trade-offs of integrating carbon capture in cement plants and underscores the potential role of HTHPs in helping the decarbonization of this sector. Sensitivity analyses on key parameters affecting energy balance and costs are included to highlight how the competitiveness and costs of the different solutions vary under different assu","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100446"},"PeriodicalIF":0.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254244","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":"Unraveling the coupling effect of micropore confinement and functional sites of carbon-based adsorbents on flue gas CO2 adsorption: A machine learning study based on multi-scale simulations","authors":"Jiayu Zuo ,&nbsp;Fei Sun ,&nbsp;Zhibin Qu ,&nbsp;Chaowei Yang ,&nbsp;Liang Xie ,&nbsp;Yi Zhang ,&nbsp;Xuhan Li ,&nbsp;Junfeng Li","doi":"10.1016/j.ccst.2025.100445","DOIUrl":"10.1016/j.ccst.2025.100445","url":null,"abstract":"<div><div>Carbon material is a type of promising adsorbent for flue gas CO₂ capture, where micropore and dopants are key functional units and intertwined with each other. Due to the difficulty in detaching micropore and functional sites, their effects on CO₂ adsorption are still in debate. Herein, we unravel coupling effects of micropore confinement and functional sites combining machine learning (ML) and multi-scale simulations. High-throughput Grand Canonical Monte Carlo (GCMC) simulations in combination with density functional theory (DFT) calculations clarify that CO₂ adsorption mechanism under pore-dopant coupling is dependant on both micropore confinement environment and interaction type of CO₂ with functional sites. For basic dopants owning chemical interactions with CO₂, adsorption potential driven by Lewis acid-base interactions dominate CO₂ adsorption behavior and the optimal pore size is distributed at 7 Å. For dopants that predominantly adsorb CO₂ by physisorption interaction, steric effect becomes a key factor influencing CO₂ adsorption behavior, which will result in a shift in optimal pore size for CO₂ adsorption from 7 to 8-10 Å and alter adsorption selectivity. In this case, new descriptor free volume (<em>V_f</em>) was identified to describe coupling effects of micropore and functional sites. Guided by theoretical findings, we prepare carbon adsorbent with both heteroatom dopants and enlarged pore size, which exhibits leading-level CO₂ adsorption capacity of 4 mmol g⁻¹ at ambient condition, 130% higher than that without pore size optimization. This work demonstrates crucial role of micropore-dopant coupling mode on CO₂ adsorption, and provides new direction of developing high-performance carbon adsorbent beyond traditional standalone pore or doping engineering.</div></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":"16 ","pages":"Article 100445"},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178441","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}