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界面基礎と電解質・触媒工学によるアミン媒介反応性炭素回収

Amine‐Mediated Reactive Carbon Capture Through Interfacial Fundamentals and Electrolyte and Catalyst Engineering (原題)

Zhuoshu Bai, Yang Yang, Yahui Yang, Shaona Wang, Zanbu Geng, Yixi Wang, Wenqing Xu, Tingyu Zhu

cScience📚 査読済 / ジャーナル2026-09-01#CCUSOrigin: CN経営インパクト: コスト削減対象セクター: chemicals
DOI: 10.1002/csc3.70033
原典: https://doi.org/10.1002/csc3.70033

🤖 gxceed AI 要約

日本語

CO2回収と電気化学変換を一体化した反応性炭素回収（RCC）のうち、アミン媒介系の界面科学を体系的に整理したレビュー。カルバメート還元は気体CO2電解より反応性が低く、電気二重層内のプロトン化アミンによる電荷遮蔽とカルバメート陰イオンの静電反発が電子移動を阻害する。電解質設計（アミン最適化、陽イオン添加、界面活性剤）と電極工学（表面酸性サイト、活性中心選定、構造制御）の戦略を提示し、活性炭素種の同定と反応器設計を今後の課題とする。

English

This review synthesizes the interfacial science, electrolyte design, and catalyst engineering underlying amine-mediated reactive carbon capture (RCC), which couples CO2 capture with electrochemical conversion to avoid energy-intensive thermal regeneration. Carbamate reduction suffers from charge screening by protonated amines in the electric double layer and electrostatic repulsion at the cathode, limiting reactivity versus gaseous CO2 electrolysis. It outlines strategies—amine optimization, cation addition, surfactants, surface acidic sites, and electrode morphology control—and calls for identifying the active carbon species and designing compatible reactors.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本はCCUSをGX推進戦略・グリーン成長戦略の重点分野と位置づけ、製鉄・化学・電力での実装を目指す。本レビューは統合型RCCの界面設計指針を提供し、国内CCUS実証・商用化の技術的ボトルネック理解に資する。ただし現時点では基礎研究段階で、SSBJ開示や投資家対応への直接的示唆は乏しい。

In the global GX context

Globally, integrated CO2 capture-and-conversion is central to net-zero pathways and industrial decarbonization, complementing CCUS and carbon-removal frameworks under ISSB/CSRD transition planning. This review advances the fundamental understanding needed to make amine-mediated RCC energy-competitive, informing technology roadmaps and climate-tech investment theses, though it remains pre-commercial and does not address disclosure or accounting standards.

👥 読者別の含意

🔬研究者:アミン媒介RCCの界面・触媒設計の現状と未解決課題（活性炭素種の同定）を体系的に把握できる。

🏢実務担当者:統合型CO2回収・変換技術の成熟度と技術的障壁を評価し、CCUS投資判断の参考にできる。

🏛政策担当者:CCUS/カーボンリサイクル政策の技術的前提と研究開発支援の優先領域を検討する材料になる。

📄 Abstract（原文）

ABSTRACT Reactive carbon capture (RCC), an integrated technology that couples CO 2 capture with electrochemical conversion, eliminates energy‐intensive processes such as thermal CO 2 regeneration and compression, thereby substantially reducing the overall energy consumption of carbon capture and utilization. Amine‐mediated RCC systems have garnered extensive research interest owing to their mature industrial foundation. However, the reduction reactivity of carbamate species is markedly inferior to that of gaseous CO 2 electroreduction, primarily due to the intricate interfacial microenvironment and intrinsic catalytic limitations. Protonated amines form a charge‐screening layer within the electric double layer (EDL) that impedes electron transfer, whereas electrostatic repulsion between the carbamate anions and the negatively charged electrode surface reduces the interfacial accessibility. Additionally, an unresolved debate over the identity of the active carbon species hinders rational catalyst design. This review systematically elucidates the interfacial science, performance enhancement strategies, and catalyst selection principles underlying carbamate reduction in RCC systems. Approaches for electrolyte design include optimizing amines, introducing cations to compress the EDL, and incorporating surfactants to regulate hydrophobicity. Strategies for electrode engineering involve utilizing surface acidic sites to facilitate carbamate decomposition, screening catalytically active centers, and tailoring the electrode structure and morphology. Future research should focus on identifying the active carbon species, developing material design strategies tailored for carbamate activation, and engineering reactors compatible with amine electrolyte properties to advance the practical deployment of integrated amine‐mediated RCC technologies.

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