Hydrogen

Hydrogen is an open access journal published by MDPI in Basel that launched in 2020 and reports chemical, physical and engineering advances in hydrogen science and technology, with a 2025 Journal Impact Factor of 5.6.《氢》（Hydrogen）由总部位于巴塞尔的（MDPI）出版，2020 年创刊，报道氢科学与技术中的化学、物理与工程进展，2025 年影响因子为 5.6。

Scope

• Hydrogen generation and production form the journal's first area, covering both established and emerging routes to the molecule.制氢与产氢构成本刊的首要领域，既涵盖成熟路线，也涵盖新兴路线。
• Hydrogen storage is treated at length, including compressed, liquefied and solid-state approaches based on metal hydrides and other materials.储氢受到重点讨论，包括压缩、液化以及基于金属氢化物与其他材料的固态途径。
• Applications are covered across fuel cells, combustion, the chemical and steel industries, refining and power generation.应用方面覆盖燃料电池、燃烧、化工与钢铁工业、炼油以及发电。
• Hydrogen transport, distribution and infrastructure are within scope, as are the economics and safety of moving the gas at scale.氢的运输、分配与基础设施亦在范围之内，大规模输送的经济性与安全同样收录。
• The fundamental properties of hydrogen, its phases, isotopes and atomic and molecular forms, are published alongside applied work.氢的基础性质、相态、同位素以及原子态与分子态，与应用研究并列发表。
• Hydrogen-related reactions such as hydrogenation, dehydrogenation, ammonia and methanol synthesis and hydrotreating are represented.与氢相关的反应，如加氢、脱氢、氨与甲醇合成以及加氢处理，均被收录。
• Environmental aspects and the impact of hydrogen energy technologies are treated as an integral part of the journal's remit.环境议题与氢能技术的影响，被视为本刊职责的有机组成部分。

History

• Hydrogen was launched by MDPI in 2020 and released its inaugural issue as a quarterly journal.（Hydrogen）由（MDPI）于 2020 年创办，并以季刊形式推出创刊号。
• Its founding editorial was written by George E. Marnellos of the University of Western Macedonia and Thomas Klassen of the Helmholtz-Zentrum Geesthacht.其创刊社论由西马其顿大学的 George E. Marnellos 与（Helmholtz-Zentrum Geesthacht）的 Thomas Klassen 撰写。
• Thomas Klassen, of the Helmut Schmidt University and the Center for Materials and Coastal Research, has served as editor-in-chief since the first volume.来自（Helmut Schmidt University）与材料与海岸研究中心的 Thomas Klassen，自第一卷起担任主编。
• The journal was indexed in Scopus in 2023, beginning with the first volume, and received a first CiteScore of 3.6.本刊于 2023 年被（Scopus）收录，回溯至第一卷，并取得首个（CiteScore）3.6。
• It entered the Emerging Sources Citation Index in 2024 and Ei Compendex in 2025, and its first impact factor was 3.0.本刊于 2024 年进入新兴来源引文索引，2025 年被（Ei Compendex）收录，首个影响因子为 3.0。
• The 2025 impact factor rose to 5.6, placing the title in the second quartile of physical chemistry and of energy and fuels.2025 年影响因子升至 5.6，使本刊位列物理化学以及能源与燃料类的第二分区。

Editors

• Thomas Klassen leads the journal from the Helmholtz-Zentrum Hereon and the Helmut Schmidt University in Hamburg, where he works on hydrogen technology and materials.Thomas Klassen 自（Helmholtz-Zentrum Hereon）与汉堡的（Helmut Schmidt University）主持本刊，从事氢技术与材料研究。
• The editorial board is drawn from hydrogen production, storage, fuel cells, catalysis, safety and energy systems research across Europe, Asia and North America.编委会成员来自制氢、储氢、燃料电池、催化、安全与能源系统等方向，分布于欧洲、亚洲与北美。
• Manuscripts are handled through the publisher's editorial system, with a median time to first decision of about 19 days reported for 2025.稿件经出版方的编辑系统处理，2025 年公布的首次决定中位时间约为 19 天。
• As a fully open access title the journal charges article processing charges and offers discounts and waivers to reviewers and to authors from lower-income countries.作为完全开放获取期刊，本刊收取文章处理费，并为审稿人及低收入国家作者提供折扣与减免。
• Reviews, regular research papers and communications are accepted, with no restriction on the length of papers.本刊接受综述、常规研究论文与通讯，且对论文篇幅不作限制。
• Guest-edited special issues on focused hydrogen topics are a regular feature of the journal's programme.围绕特定氢议题的客座编辑专刊，是本刊选题计划的常规组成部分。