Journal profile · Environmental Sciences
International Journal of Hydrogen Energy
ISSN 0360-3199 · eISSN 1879-3487 · Elsevier Ltd · ENGLAND · Semimonthly · Founded 1976
International Journal of Hydrogen Energy: CAS Zone 2 · Materials Science (2025 upgraded edition); impact factor 9.33; hybrid open access; APC about USD 3,730; review about 91 days (submission to acceptance, publisher); community-reported acceptance: about 50%; 5,635 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
International Journal of Hydrogen Energy is published by Elsevier Ltd and is in Zone 2 of Materials Science in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Electrocatalysts for Energy Conversion, Fuel Cells and Related Materials and Hybrid Renewable Energy Systems, together about 30.1% of its articles. Its main subfields are Materials Chemistry. (generated from OpenAlex topic counts and CAS ranking data)
Official Journal of the International Association for Hydrogen EnergyThe International Journal of Hydrogen Energy aims to provide a central vehicle for the exchange and dissemination of new ideas, technology developments and research results in the field of Hydrogen Energy between scientists and engineers throughout the world. The emphasis is placed on original research, both analytical and experimental, covering all aspects of Hydrogen Energy, including production, storage, transmission, utilization, enabling technologies, environmental impact, economic and international aspects of hydrogen and hydrogen carriers such as NH3, CH4, alcohols, etc.The utilization includes thermochemical (combustion), photochemical, electrochemical (fuel cells) and nuclear conversion of hydrogen, hydrogen isotopes and/or hydrogen carriers to thermal, mechanical and electrical energies, and their applications in transportation (including aerospace), industrial, commercial and residential sectors.When outstanding new advances are made, or when new areas have been developed to a definitive stage, special review articles will be considered. Shorter communications are also welcome.This journal welcomes contributions that support and advance the UN's sustainable development goals, in particular SDG 7 (Affordable and clean energy)
From the journal's Aims & Scope
Research area (LetPub): Environmental Sciences
Editor-in-chief T. NejatPublisher website
Editorial board by country: 9 in mainland China (about 18%); most named United States 11, Mainland China 9, Türkiye 8, Italy 3, France 2 (51 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Electrocatalysts for Energy ConversionEnergy11.9%
- Fuel Cells and Related MaterialsEngineering9.5%
- Hybrid Renewable Energy SystemsEnergy8.8%
- Hydrogen Storage and MaterialsMaterials Science8.6%
- Catalytic Processes in Materials ScienceMaterials Science6%
- Advanced battery technologies researchEngineering5.5%
- Catalysts for Methane ReformingChemical Engineering5.4%
- Advanced Photocatalysis TechniquesEnergy5.3%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Materials Science Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Materials Science | Zone 2 |
| Minor | Chemistry, Physical | Zone 2 |
| Minor | Electrochemistry | Zone 2 |
| Minor | Energy & Fuels | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Materials Science Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Materials Science | Zone 2 |
| Minor | Chemistry, Physical | Zone 2 |
| Minor | Electrochemistry | Zone 2 |
| Minor | Energy & Fuels | Zone 2 |
Top journal: yesReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Engineering Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 2 |
| Minor | Chemistry, Physical | Zone 2 |
| Minor | Electrochemistry | Zone 2 |
| Minor | Energy & Fuels | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 9.33LetPub ·
- Impact factor (publisher)
- 9.2Publisher website ·
- CiteScore 2026-06
- 14.3LetPub ·
- CiteScore (publisher)
- 14.3Publisher website ·
- SJR 2026-06
- 1.66LetPub ·
- SNIP 2026-06
- 1.51LetPub ·
- h-index
- 187LetPub ·
- h-index
- 341OpenAlex ·
- i10-index
- 42,592OpenAlex ·
- 2-year mean citedness
- 10.2OpenAlex ·
- Self-citation rate
- 20.7%LetPub ·
- Share of gold OA articles
- 16.5%LetPub ·
Volume
- Articles per year
- 5,643LetPub ·
Articles by year OpenAlex count · 61,249 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 4,013 | 1,314 | 4,114 |
| 2025 | 5,635 | 1,256 | 45,854 |
| 2024 | 5,447 | 1,238 | 103,976 |
| 2023 | 4,249 | 813 | 122,483 |
| 2022 | 3,522 | 521 | 127,414 |
| 2021 | 2,926 | 433 | 126,364 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with PubMed · to
Too few articlesOnly 1 articles from the last 24 months carry both submission and acceptance dates, too few for a median
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Figures by source
- Average review time (community reports)
- about 2.2 monthsLetPub ·
- Average acceptance (community reports)
- 50%LetPub ·
- First decision after review
- 44 daysPublisher website ·
- Submission to acceptance
- 91 daysPublisher website ·
- Peer review
- Single anonymous peer reviewPublisher website
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 3,730 / EUR 3,490 / GBP 2,990 / JPY 462,630 | — | — | |
| Publisher website | USD 4,080 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare10 items from the author guidelines
- Abstract
- ≤ 150 words
- Manuscript length
- ≤ 8,000 words
- Reference style
- Numbered, in order of citation
- Templates
- LaTeX and Word
- First submission
- Free format: the journal's layout is not required
- Suggested reviewers
- Optional
- Highlights
- Required
- Graphical abstract
- Optional
- Cover letter
- Required
- Not considered
- Resubmissions
Article types accepted11, with length limits
- commentaryThe journal welcomes comments on content previously published in IJHE.Comments must be submitted within 12 months of the publication date of the article they re…main text ≤ 2,000 words
- letterThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…Length not stated
- letter to the editorThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…main text ≤ 300 words
- opinionThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…Length not stated
- original articleThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…Length not stated
- research paperThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…Length not stated
- research papersThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications. Research papers: • A research paper presents the r…Length not stated
- reviewThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…main text ≤ 12,000 words
- review papersReview Papers: • A review paper succinctly reviews recent progress on a specific subject of active research. It should summarize the current state of knowledge …Length not stated
- short communicationThe International Journal of Hydrogen Energy accepts research papers, review papers and short communications.Research papers:• A research paper presents the res…main text ≤ 3,000 words
- short communicationsShort communications: • A short communication informs the scientific community about recent research, which the authors wish to publish as quickly as possible, …Length not stated
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI in scientific writing
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship Author contributions
For transparency, we require corresponding authors to provide co-author contributions to the manuscript using the relevant CRediT roles. The CRediT taxonomy includes 14 different roles describing each contributor's specific contribution to the scholarly output. The roles are: Conceptualization; Data curation; Formal analysis; Funding acquisition; Investigation; Methodology; Project administration;…
Source ↗Publisher website ·- Conflicts of interest Declaration of competing interest
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. Examples of potential conflicts of interest include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding. Authors should complete the declaration of compe…
Source ↗Publisher website ·- License & copyright Copyright
Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement' (see more information on this). An e-mail will be sent to the corresponding author confirming receipt of the manuscript together with a 'Journal Publishing Agreement' form or a link to the online version of this agreement.Subscribers may reproduce tables of contents or prepare lists of articles includ…
Source ↗Publisher website ·- Open access Open access
Please visit our Open Access page for more information about open access publishing in this journal.
Source ↗Publisher website ·- Peer review Peer review
single anonymized review process Model summary
This journal operates a single anonymized review process. All contributions will be initially assessed by the editor for suitability for the journal. Papers deemed suitable are then typically sent to a minimum of two independent expert reviewers to assess the scientific quality of the paper. The Editor is responsible for the final decision regarding acceptance or rejection of articles. The Editor'…
Source ↗Publisher website ·- Preprints Preprints
preprints can be shared anywhere at any time Model summary
Please note that preprints can be shared anywhere at any time, in line with Elsevier's sharing policy. Sharing your preprints e.g. on a preprint server will not count as prior publication (see 'Multiple, redundant or concurrent publication' for more information).
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Elsevier Ltd
- Country or region
- ENGLAND
- Language
- English
- Frequency
- Semimonthly
- Founded
- 1976
- ISSN
- 0360-3199
- Electronic ISSN
- 1879-3487
- Society / sponsor
- International Association for Hydrogen Energy
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about International Journal of Hydrogen Energy
What CAS zone is International Journal of Hydrogen Energy in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Journal of Hydrogen Energy is in Zone 2 of Materials Science, and in Zone 2 of the minor category Chemistry, Physical / Electrochemistry / Energy & Fuels. In the 2026 Xinrui edition it is in Zone 2 of Materials Science. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Journal of Hydrogen Energy?
The latest impact factor listed by LetPub is 9.33; CiteScore 14.3, h-index 341.
How long does peer review take at International Journal of Hydrogen Energy?
The publisher reports about 91 days (submission to acceptance); authors report an average review time of about 2.2 months; the community-reported acceptance is “about 50%”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of International Journal of Hydrogen Energy?
According to the journal's author guidelines: Abstract: ≤ 150 words; Manuscript length: ≤ 8,000 words; Reference style: Numbered, in order of citation; Templates: LaTeX and Word; First submission: Free format: the journal's layout is not required; Suggested reviewers: Optional; Highlights: Required; Graphical abstract: Optional; Cover letter: Required. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of International Journal of Hydrogen Energy based?
Of the 51 board members whose country the journal's board page names, 9 (about 18%) are in mainland China; the countries named most often are United States (11), Mainland China (9) and Türkiye (8). Counted from the institutions listed on the board page; for reference only.
Which databases index International Journal of Hydrogen Energy?
According to LetPub and DOAJ records, International Journal of Hydrogen Energy is indexed in SCIE and Scopus.
Is International Journal of Hydrogen Energy open access, and what is the APC?
International Journal of Hydrogen Energy is a hybrid journal. For open-access publication: APC about USD 3,730.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .