EngineeringNitrogen-Enriched Porous Carbons fromRice Husk via Mechanochemical–Thermal Processing for EnhancedCO2 Capture
メカノケミカル・熱処理による籾殻由来窒素富化多孔質炭素の作製とCO2捕集能の向上 (AI 翻訳)
Valentina Gargiulo, Oreste De Luca, Alfonso Policicchio, Luciana Cimino, Petra Rudolf, Michela Alfè
🤖 gxceed AI 要約
日本語
籾殻と尿素をメカノケミカル・熱処理で変換し、窒素富化バイオ炭を作製。CO2吸着量は7.95 mmol/g(30 bar, 25°C)に達し、脱ケイ素前駆体より向上。CH4吸着も改善し、バイオマス廃棄物からのCO2捕集材のスケーラブルな合成法を示した。
English
Rice husk and urea are converted into nitrogen-enriched biochar via mechanochemical-thermal processing. The material achieves CO2 uptake of 7.95 mmol/g at 30 bar and 25°C, outperforming the desilicated precursor. CH4 adsorption also improves, demonstrating a scalable route to produce CO2 adsorbents from biomass waste.
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
日本ではバイオマス廃棄物の有効活用がGX政策の柱であり、CO2回収材の国産化はカーボンリサイクル戦略に寄与する。ただし、実用化にはコスト低減と大規模実証が必要で、産業連携が鍵となる。
In the global GX context
This work aligns with global CCUS and circular economy goals by valorizing agricultural waste into CO2 adsorbents. It offers a scalable synthesis route that could support carbon removal technologies, though further scale-up and economic assessment are needed for industrial deployment.
👥 読者別の含意
🔬研究者:バイオマス由来CO2吸着材の合成法と性能向上の知見を提供。
🏢実務担当者:廃棄物由来のCO2吸着材の可能性を示すが、実用化にはコスト検証が必要。
🏛政策担当者:バイオマス廃棄物の高付加価値化とCCUS技術開発の支援材料となる。
📄 Abstract(原文)
Abstract Transforming agricultural residues into high-value carbon-based materials offers a promising route for sustainable carbon management. Here, we combine mechanochemistry and thermal treatment to convert carbonized rice husk mixed with urea into nitrogen-enriched biochar. The resulting material was benchmarked against a commercial carbon black, doped with nitrogen under identical conditions, enabling comparison of structural characteristics and gas adsorption performance. The integrated treatment significantly enhances CO2 uptake in the rice-husk-derived carbon, reaching 7.95 mmol/g (35 wt %) at 30 bar and T = 25 °C compared to 6.16 mmol/g (27 wt %) for the desilicated precursor. A smaller improvement is observed for CH4 adsorption (5.4 wt % compared to 4.8 wt % for the desilicated precursor) in the same conditions, while preliminary H2 tests at 1 bar and T = −196 °C show similar uptakes for both materials (4.6 mmol g–1). Overall, these results demonstrate that the combined mechanochemical–thermal approach provides an effective and scalable strategy to produce nitrogen-rich carbon adsorbents from biomass waste, with enhanced performance for CO2 capture applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.energyfuels.6c02263first seen 2026-08-06 04:59:59
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