リグニン系Nドープ多孔質炭素における窒素種の制御とCO2捕集性能
Regulation of Nitrogen Species in Lignin‐Based N‐Doped Porous Carbons and Their CO 2 Capture Performance (原題)
Lu Shi, Dandan Liu, Wanying Wang, Lishu Shao
🤖 gxceed AI 要約
日本語
酵素加水分解リグニンを炭素源とし、メカノケミカル支援活性化によりNドープ多孔質炭素（LNPC）を調製した。4種の窒素源を比較し、メラミン由来のLSY-N-MEが273K・1barで4.25 mmol/gのCO2吸着量とCO2/N2選択性11を示した。窒素種と細孔特性が吸着量・選択性・等量吸着熱を左右することを明らかにし、低コストで持続可能な炭素捕集材料設計の指針を提示する。
English
Lignin-based N-doped porous carbons were prepared via mechanochemical-assisted activation using four nitrogen sources. The melamine-derived sample achieved 4.25 mmol/g CO2 uptake at 273 K/1 bar with CO2/N2 selectivity of 11 and stable cycling. The study links nitrogen species and pore structure to capture performance, offering a low-cost route to sustainable carbon capture materials.
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
日本ではCCUSはGX推進法・GX経済移行債の重点領域であり、特に素材・材料レベルの低コスト化研究は国内の分離回収コスト低減に寄与しうる。ただし本論文は実験室段階の材料研究で、SSBJ・有報・投資家対応といった開示文脈との直接の接続は薄い。
In the global GX context
Globally, CCUS is central to net-zero pathways and transition finance taxonomies, and low-cost sorbent innovation can lower capture costs that underpin credible decarbonization claims. However, this is early-stage materials science with limited direct linkage to TCFD/ISSB/CSRD disclosure frameworks.
👥 読者別の含意
🔬研究者:バイオマス由来多孔質炭素の窒素種制御とCO2吸着機構の相関を理解する上で有用。
🏢実務担当者:CO2分離回収コスト低減に資する吸着材料候補として参考になるが、実装には追加検証が必要。
🏛政策担当者:CCUS技術ロードマップにおける材料イノベーションの位置づけを検討する際の基礎情報。
📄 Abstract（原文）
ABSTRACT Using enzymatic hydrolysis lignin as carbon source, a series of lignin‐based N‐doped porous carbons (LNPCs) were prepared via mechanochemical‐assisted activation. Four typical N sources were selected to regulate nitrogen species, and their effects on surface chemistry, porosity, and CO 2 capture performance were clarified. The optimal precursor (L‐N‐ME) was obtained under hydrothermal conditions (150°C, 20 h, solid‐to‐liquid ratio 1:10) with melamine as N source. The resulting LSY‐N‐ME exhibited a CO 2 adsorption capacity of 4.25 mmol/g at 273 K and 1 bar, along with considerable CO 2 /N 2 selectivity (11 by IAST) and excellent cyclic stability, with negligible capacity loss after three adsorption–desorption cycles. Systematic analysis revealed that the appropriate N source not only preserved favorable pore structure but also played the decisive role in determining adsorption selectivity. Meanwhile, the correlations between N species, pore properties, and CO 2 uptake, selectivity, and isosteric heat of adsorption were thoroughly examined. This work provides comprehensive insight into N‐species regulation in biomass‐derived porous carbons and offers a simple, promising strategy for designing low‐cost, sustainable carbon capture materials.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/slct.74755first seen 2026-10-12 04:45:02
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