地熱源を利用した水分解反応による直接的なグリーン水素製造：熱力学および機構的ブレークスルー
Directly engineered green hydrogen production by water splitting reaction powered by geothermal source: A thermodynamic and mechanistic breakthrough (原題)
Roshni Kumari, Dipti Chaudhary, Anirbid Sircar
🤖 gxceed AI 要約
日本語
本研究は、地熱発電を利用したアルカリ電解によるグリーン水素製造の新規統合を提案。遷移金属ベースの電極システムによりHER速度を向上させ、水素純度99.999%を達成。技術経済分析により、水素製造コストは$1.54/kg-H2で、システム効率は82.1%と報告。産業規模での応用可能性を示す。
English
This study proposes a novel integration of geothermal power with alkaline electrolysis for green hydrogen production. A transition metal-based electrode system enhances HER kinetics, achieving 99.999% hydrogen purity. Techno-economic analysis shows a levelized cost of hydrogen of $1.54/kg-H2 and system efficiency of 82.1%, indicating industrial-scale viability.
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
日本は水素基本戦略を掲げ、グリーン水素のコスト低減と供給拡大を目指している。地熱資源は日本に豊富に存在し、再生可能エネルギー由来の水素製造は国の戦略に合致する。本研究の技術経済分析は、日本の水素サプライチェーン構築や補助金政策の検討に示唆を与える。
In the global GX context
Globally, green hydrogen is pivotal for decarbonizing hard-to-abate sectors. This study provides a techno-economic benchmark for geothermal-based hydrogen production, which is relevant for countries with geothermal resources. The high efficiency and low LCOH contribute to the global discourse on renewable hydrogen cost competitiveness.
👥 読者別の含意
🔬研究者:Provides a detailed thermodynamic and mechanistic analysis of a geothermal-electrolysis system, offering insights for further optimization.
🏢実務担当者:Highlights a potential cost-effective pathway for green hydrogen production that could be integrated into corporate sustainability strategies.
🏛政策担当者:Offers evidence for supporting geothermal hydrogen as a viable option in national hydrogen strategies and renewable energy policies.
📄 Abstract（原文）
Green hydrogen is considered as future fuel due to its clean, efficient and green production pathway. Water electrolysis is a key pathway for green hydrogen production, which utilises electricity to split water into hydrogen and oxygen with zero carbon emissions when powered by renewables. Geothermal driven green hydrogen production represents one of the best alternative for green energy transitions in terms of economic, environmental, thermodynamic and industrial point of view. The present study highlights a novel integration of geothermal power based green hydrogen production using alkaline electrolyser which substantially reduces capital investment, offers industrial grade scalability and longer lifespan with minimum environmental impacts. The source of green hydrogen is geothermal water, which splits by electro-catalytic reaction mechanism producing hydrogen at the rate of 2500 mL/min. The transition metal based double layered electrode system favoured HER kinetics which is obviously supported by SEM, BET, and CV analysis. The produced hydrogen is directed through a compressed pipeline to a specially designed storage cylinder (Type II) that can efficiently store compressed hydrogen at high pressure. The purity of produced hydrogen is 99.999 %. The reduced energy barrier of 205.2 kJ/mol for water splitting reaction strongly favours enhanced HER kinetics. The cycle wise continuous operation of the plant validated the technology at industrial grade statistics in terms of production and storage efficiency. The techno-economic costing suggests a significant benefit cost of production of $ 1.5098 which evaluates rapid marketing prospects of the technology. On a lifetime scale production, reduced LCOH of $1.54/kg-H2 demonstrates a high order system for industrial grade application. The overall system efficiency of 82.1 ± 5.47% suggest a highly efficient geothermal power based hydrogen production which significantly reduces electrical power consumption, enhances hydrogen production rate with minimum uncertainty losses.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1177/09576509261483877first seen 2026-09-02 05:28:20 · last seen 2026-09-22 05:02:29
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