Green Hydrogen Development: Bibliometric and Patent Landscape Analysis With Technology and Policy Perspectives for the Global Energy Transition
グリーン水素開発：技術・政策の観点から見た文献計量・特許ランドスケープ分析とグローバルなエネルギー転換への示唆 (AI 翻訳)
B. S. Zainal, M. Reza, I. M. R. Fattah, N. Osman, T. M. I. Mahlia
🤖 gxceed AI 要約
日本語
本レビューはScopusとLensデータベースを用い、2014〜2024年の学術論文1,528件と特許1,162件を分析し、グリーン水素の研究動向と特許活動を俯瞰する。電解による水素製造が研究・イノベーションの中心であり、光触媒水分解やバイオマス由来水素、高度な電極触媒、ハイブリッド再生可能エネルギーシステムが新興テーマである。高コスト、触媒劣化、貯蔵・インフラ制約が課題で、政策支援と国際協力の重要性を指摘する。
English
This review analyzes 1,528 publications and 1,162 patents (2014-2024) from Scopus and Lens to map green hydrogen R&D and patent landscapes. Electrolysis dominates both academic and industrial innovation, with emerging areas including photocatalytic water splitting, biomass-derived hydrogen, advanced electrocatalysts, and hybrid renewable systems. High electricity costs, catalyst degradation, storage limits, and infrastructure gaps remain barriers, highlighting the need for policy support and international collaboration.
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、グリーン水素の導入拡大を目指しており、本レビューの技術・特許動向や政策的課題の整理は、日本の水素戦略の妥当性評価や産学官連携の方向性を検討する上で有用である。特に特許競争力の国際比較は、日本の競争力強化策の参考になる。
In the global GX context
As countries scale up hydrogen strategies under net-zero targets, this review provides a global snapshot of technological leadership and policy gaps, useful for aligning national hydrogen roadmaps. Its patent analysis helps identify competitive positions in the emerging hydrogen economy, relevant for ISSB/CSRD-aligned transition planning and green hydrogen investment decisions.
👥 読者別の含意
🔬研究者:Provides a structured overview of green hydrogen research fronts, patent hotspots, and knowledge gaps to guide future R&D directions.
🏢実務担当者:Offers a landscape view of hydrogen technologies and competitors, helpful for corporate strategy on hydrogen investments and partnerships.
🏛政策担当者:Highlights policy mechanisms and international collaboration needed to accelerate green hydrogen deployment; useful for reviewing national hydrogen strategies.
📄 Abstract（原文）
Green hydrogen has emerged as a promising carbon‐neutral energy carrier for decarbonising the power, transportation and industrial sectors. However, large‐scale deployment requires technological advancement, cost reduction and coordinated policy support across the global energy system. This review provides a comprehensive assessment of research trends, technological innovation and patent activity in green hydrogen production to identify knowledge gaps and evaluate pathways for future development. Bibliometric and patent analyses were conducted using the Scopus and Lens databases, covering the period from 2014 to 2024 and analysing initially 1528 scientific publications and 1162 patents related to the topic. The results reveal a rapid increase in global research activity, with electrolysis‐based hydrogen production dominating both academic research and industrial innovation. Emerging research directions include photocatalytic water splitting, biomass‐derived hydrogen, advanced electrocatalysts and hybrid renewable energy systems. Patent analysis further highlights growing technological competition among major economies, particularly in electrolysis technologies and hydrogen system integration. Despite these advances, several challenges remain, including high electricity costs, catalyst degradation, hydrogen storage limitations and infrastructure constraints that hinder large‐scale commercial deployment. Policy frameworks, financial incentives and international collaborations are therefore essential to accelerate the diffusion of technology and market development. By integrating bibliometric insights, patent trends, techno‐economic considerations, and policy analysis, this review provides a holistic perspective on the evolving green hydrogen landscape and offers strategic insights to guide future research, industrial investment and policy development towards a sustainable global energy transition.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://onlinelibrary.wiley.com/doi/pdfdirect/10.1155/er/3163637first seen 2026-07-31 06:40:53
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