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CO2回収に向けた表面工学ナノ構造吸着剤：材料設計からプロセス統合・産業展開まで

Surface-engineered nanostructured adsorbents for CO2 capture: From material design to process integration and industrial deployment. (原題)

Isaac Alhamdu Baba, S. Mustapha, O. B. Awe, A. Abdulkareem, J. Tijani, Y. A. Alli, K. S. Obayomi, Jian-Hua Zhang

Environmental Research📚 査読済 / ジャーナル2026-10-27#CCUS経営インパクト: コスト削減対象セクター: cross_sector
DOI: 10.1016/j.envres.2026.125970
原典: https://doi.org/10.1016/j.envres.2026.125970
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🤖 gxceed AI 要約

日本語

本レビューは、MOF・COF・多孔質炭素・シリカ複合体などナノ構造吸着剤によるCO2回収を、細孔構造・表面化学・熱力学・吸着速度・選択性・再生挙動の相関という観点から横断的に整理する。アミン修飾やヘテロ原子ドーピング等の表面工学がCO2親和性・サイクル安定性・輸送特性に与える影響を重視し、実験室性能にとどまらずスケールアップ、再生効率、プロセス強化、技術経済性、ライフサイクル持続性まで論じる。機械学習支援の材料設計や標準化された性能指標、循環経済の可能性も提示し、大規模炭素管理に向けた設計指針を提供する。

English

This review critically synthesizes nanostructured adsorbents for CO2 capture—MOFs, COFs, nanoporous carbons, graphene analogs, silica hybrids, metal oxides, and bioinspired materials—linking pore structure, surface chemistry, thermodynamics, kinetics, selectivity, and regeneration behavior. It emphasizes surface engineering (amine grafting, heteroatom doping, compositing) and extends beyond lab performance to scale-up, regeneration efficiency, process intensification, techno-economic viability, and life-cycle sustainability. Machine-learning-assisted design, standardized metrics, and circular-economy concepts are also discussed, offering a framework for industrial-scale carbon management.

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推進戦略の重点領域と位置づけ、製鉄・化学・電力など排出集約産業での回収技術実装を急ぐ。本レビューは吸着剤の工業スケール設計と技術経済性を整理しており、国内CCUS実証・商用化検討やGX経済移行債を通じた脱炭素投資判断に資する。

In the global GX context

As ISSB/CSRD disclosure pushes hard-to-abate sectors to demonstrate credible Scope 1 abatement pathways, post-combustion capture adsorbents become a measurable decarbonization lever. This review's integration of techno-economic and life-cycle assessment with material design supports transition-finance and net-zero target credibility discussions globally.

👥 読者別の含意

🔬研究者:ナノ材料吸着剤の構造-性能相関とスケールアップ課題を俯瞰する枠組みとして活用できる。

🏢実務担当者:CCUS導入検討時に吸着剤選定・再生効率・技術経済性を評価する際の実務的チェックリストになる。

🏛政策担当者:CCUS実装の技術経済性と標準化指標の必要性を政策設計に反映する根拠として参照できる。

📄 Abstract（原文）

The growing necessity to curb CO2 emissions from man-made sources has driven the development of highly efficient and economical approaches to carbon capture. The current review is intended to give an overview and critical analysis of nanomaterial-based adsorbents for CO2 capture with specific consideration of the connections between nanomaterial properties, adsorption processes, process integration, and industrial application. As opposed to the majority of literature surveys, which concentrate on either certain classes of materials or adsorption capacity of various materials separately, the review proposes a holistic view by combining information on the correlations of pore structure, surface chemistry, thermodynamics, adsorption kinetics, selectivity principles, and regeneration behavior of different nanostructured adsorbents, such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), hierarchical nanoporous carbons, graphene analogs, silica hybrids, metal oxides, and bioinspired materials. Special focus is paid to surface engineering of adsorbents, including amine grafting, heteroatom doping, and compositing, and its influence on CO2 affinity, cyclic stability, and transport properties of adsorbents. Apart from the lab-scale efficiency, it analyzes issues of scale-up, regeneration efficiency, process intensification, techno-economic viability, and life-cycle sustainability. New possibilities such as machine-learning aided design of new adsorbents, standardized performance measures, and the concept of circular economy are also discussed. This review acts as a guideline and framework for designing nanostructured adsorbents that can be used in carbon management on a large scale.

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