International Journal of Hydrogen Energy Impact Factor

The growth from 5.6 (2020) to 8.1 (2024) tracks the global hydrogen investment cycle. The EU Green Deal, US Inflation Reduction Act, and national hydrogen strategies across Asia drove a surge in hydrogen research submissions and citations. The stabilization at 8.1 in 2024 suggests the initial hype-driven growth may be plateauing.

For context, IJHE's lowest IF was 3.6 in 2015. The journal has more than doubled its citation impact in a decade.

IJHE's IF (8.3) is strong for an energy journal, but the number should be read alongside the volume: 5,700+ papers per year makes IJHE one of the highest-volume journals in energy science. The combination of high IF and high volume is unusual and partly driven by the hydrogen hype cycle.

The practical implication: Individual paper visibility is lower than at journals publishing 1,000-2,000 papers per year. Your paper competes with 5,700 others for reader attention in the same journal.

The career implication: IJHE is universally recognized in hydrogen energy. For researchers working specifically on hydrogen production, storage, fuel cells, or hydrogen transport, it's the natural home journal. The IAHE affiliation gives it community credibility that broader energy journals don't match.

IJHE is the only major journal focused exclusively on hydrogen energy. This means:

• The reviewer pool is hydrogen-specific. Reviewers understand the field's context, standards, and current debates. You won't get reviews from general energy scientists who miss hydrogen-specific nuances.

• Comprehensive scope. The journal covers the full hydrogen value chain: production (electrolysis, thermochemical, photochemical), storage (physical, chemical), fuel cells (PEM, SOFC), transportation, infrastructure, safety, and policy.

• Community journal. IJHE is the official journal of the IAHE, which means it's where the hydrogen community publishes, reads, and debates.

In our pre-submission review work with manuscripts targeting the International Journal of Hydrogen Energy, three patterns generate the most consistent desk rejections.

Electrocatalyst paper without durability and stability data under realistic operating conditions. IJHE's author guidelines focus on "all aspects of hydrogen energy" including production, storage, and fuel cells. For water splitting electrocatalyst papers (HER, OER, overall water splitting), the journal's reviewers expect chronoamperometry or chronopotentiometry stability data at the operating current densities relevant to the application. Papers reporting high initial activity figures without stability data over at least 12-24 hours of continuous operation face consistent reviewer criticism. For papers targeting industrial relevance, stability under harsh conditions (high current density, corrosive electrolyte) is more informative than initial overpotential data alone. The pattern: beautiful activity data, no durability section.

Hydrogen storage material with capacity measured only under optimized laboratory conditions. IJHE receives a large volume of papers on metal hydrides, MOFs, and other materials for hydrogen storage. The most common issue: hydrogen storage capacity reported at conditions that maximize uptake (very high pressure, very low temperature) without reporting performance at the conditions relevant to the targeted application (onboard vehicle storage at ambient to moderate pressure, or stationary storage at temperatures compatible with industrial operation). Materials reporting 8% hydrogen storage by weight at 77K and 100 bar are useful for materials science journals. IJHE's readership needs performance data at or near 298K and pressures achievable with industrial compression, even if the performance is less impressive.

Fuel cell paper without polarization curve across the full operating range. IJHE publishes substantial fuel cell content including PEMFC, SOFC, and alkaline fuel cell research. For papers reporting improved membrane electrode assemblies, new catalysts, or novel electrolytes, the standard figure set requires a polarization curve (voltage vs. current density) across the full operating range from open circuit to high current densities, not just at the operating point where performance is highest. Papers that report only selected data points, or that characterize impedance spectroscopy without polarization performance, are missing the primary figure that IJHE reviewers use to evaluate cell performance.

An IJHE durability data and operating-condition check can verify whether the performance data and operating-condition characterization meet IJHE's engineering-relevant standards before submission.

Submit if:

• the paper is hydrogen energy research (production, storage, fuel cells, transport, infrastructure)
• the work is solid within the hydrogen community and would be understood by IAHE reviewers
• you want the dedicated hydrogen journal's audience and reviewer expertise
• the methodology is rigorous and the hydrogen application is demonstrated

Think twice if:

• the results have implications beyond hydrogen (Applied Energy or Energy for broader visibility)
• the work is exceptional enough for Nature Energy or Joule (target there first)
• Journal of Power Sources would reach a more specific electrochemical audience
• the hydrogen angle is secondary to a materials or catalysis story (materials journals may fit)

An IJHE hydrogen framing and evidence strength check can help assess whether your paper's framing and data meet IJHE's editorial expectations.

The impact factor for International Journal of Hydrogen Energy measures average citations per paper over 2 years. It does not measure the quality of any individual paper, the prestige within a specific subfield, or whether the journal is the right fit for your work. A high IF does not guarantee your paper will be cited, and a lower IF does not mean the journal lacks influence in its specialty.

Impact factors also do not account for field-specific citation patterns. Journals in clinical medicine accumulate citations faster than journals in mathematics or ecology. Comparing IFs across fields is misleading.

Before submitting to IJHE, an IJHE submission readiness check can verify whether your hydrogen application framing, durability data, and engineering-relevant performance metrics meet the editorial standard.