OOIR: Observatory of International Research

Papers

(The H4-Index of International Journal of Hydrogen Energy is 120. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-10-01 to 2025-10-01.)

Article	Citations
Guest editorial for special issue on biohydrogen generation from lab to industry: Challenges and perspectives	1111
Atomically dispersed ruthenium single-atom alloy catalysts enabling efficient iodide oxidation reaction electrolysis in acidic media	576
Peat as a carbon source for non-platinum group metal oxygen electrocatalysts and AEMFC cathodes	570
Visible light-driven photothermal Au/Ag/TiO2 trihybrid plasmonic nanomaterial for synthetic fuel production	507
Development and justification of a hydrogen–in–oxygen combustion system using recirculation based on an experimental study	476
Structural and photoelectrochemical properties of fibrous silica-titania (FST) photocatalyst for water splitting	471
Intercomparison between LH2, LNG and pressurized NH3 dispersion using an adiabatic mixing approach	464
Ti–Fe mixed oxides as photocatalysts in the generation of hydrogen under UV-light irradiation	461
Study of increasing thermodynamic efficiency and hydrogen amount in the process of solid fuels and biomass gasification	422
Modulation the carrier separation mechanism of CdS photoanode: From vacancy to crystal phase transformation	418
Effect of gas injection mass flow rates on the thermal behavior in a cryogenic fuel storage tank	385
WITHDRAWN: Editorial hydrogen energy technology for future	378
In-situ dehydrogenation of lignin-based jet fuel: A novel and sustainable liquid organic hydrogen carrier	369
Crystal structure effects on the Co-sputtered p-type Fe2-xSnxO3 hydrogen gas sensors	350
Tourist preferences for fuel cell vehicle rental: going green with hydrogen on the island of Tenerife	316
Hydrogen charging and discharging studies on embedded cooling tube metal hydride reactor designed for fuel cell applications	316
Hydrogen gas dispersion studies for hydrogen fuel cell vessels I: Vent Mast releases	293
Enhanced hydrogen storage performance of zinc and magnesium cobaltite nanocomposites	275
Assessing the accuracy and replicability of water formation modeling in PEM fuel cells: A sensitivity analysis of key performance parameters using computational fluid dynamics	259
NiFeOOH deposition on various 3D electrode geometries to influence bubble dynamics under technical relevant alkaline water electrolysis conditions	258
Synergistic catalytic effect of fluorine coordination in defects engineered nitrogen-doped 3D-Hierarchical Zn polymer-derived carbon as efficient bifunctional electrocatalysts	249
Regulating the hole transfer from CuWO4 photoanode to NiWO4 electrocatalyst for enhanced water oxidation performance	248
Hydrogen production via supercritical water gasification of glycerol enhanced by simple structured catalysts	246
An advanced control strategy for power flow management, optimal DC capacitor utilization and compensating harmonics in fuel cell electric vehicle powertrain converters	245
Biohydrogen production via integrated sequential fermentation using magnetite nanoparticles treated crude enzyme to hydrolyze sugarcane bagasse	227

Novel van der Waals heterostructure g-C3N4/XP3 for photocatalytic hydrogen production: A first-principles study	226
Green hydrogen production by electrocatalytic activity of intercalated layered nanomaterial in acidic solution	225
Electrolysis of aqueous polymer solutions for low-cost hydrogen production: An experimental case study of polyethylene oxide (PEO) electrolysis	221
Boron-based hydrogen storage materials towards Power-to-X technology on the path to carbon neutrality	220
The impact of hydrogen on forced-draft gas burners: A numerical investigation of nitrogen oxide emissions	216
Experimental and numerical study on vented H2/air explosion in an obstructed duct: Effects of hydrogen concentration and vent size	213
A comparative techno-economic analysis of aqueous and anhydrous HCl electrolysis processes	212
Investigation of the injector configurations of ramp injection system for efficient hydrogen mixing inside the combustor of scramjet engine	210
Nanoflower-like PdCuP catalysts for enhancing ethanol electrooxidation	207
Remaining useful life prediction of fuel cells using a dual data-driven model with relative power loss rate-based health indicator under real-world traffic conditions	203
Investigation into the explosion characteristics of hydrogen-ammonia mixture: Effect of ignition position	194
Numerical simulation of the coupling mechanism between hydrogen coaxial jet diffusion combustion and heat transfer in water-cooled tube bundles	191
Numerical study on the characteristics of rotating detonation wave with multicomponent mixtures	191
Robust alkaline stability of MOFs functionalized poly (aryl ether ketone) anion exchange membranes for hydrogen fuel cells	191
Iron and phosphorus dual-doped NiMoO4 with nanorod structure as efficient oxygen evolution catalyst in alkaline seawater	191
Performance analysis of a 1 MW reversible solid oxide system for flexible hydrogen and electricity production	190
Bimetallic polyoxometalate derived Co/WN composite as electrocatalyst for high-efficiency hydrogen evolution	190
Tailoring surface defects in exotic 2D ultrathin TiO2 nanosheets for improved photocatalysis and prospective water splitting applications	184
Renewable hydrogen production through electrolysis: An analysis of the cost gap for its economic competitiveness in Italy	183
Modeling of electrocatalytic hydrogen evolution via high voltage alkaline electrolyzer with different nano-electrocatalysts	179
Composite based on nickel-functionalized carbon nitride and carbon nanotubes as an efficient electrocatalyst for the oxygen evolution reaction	176
The design and techno-economic evaluation of wind energy integrated on-site hydrogen fueling stations for different electrolyzer technologies	176
Regulation of V for the phase transition of NiO to Ni0 to effectively boost hydrogen evolution reaction activity in electrocatalytic water splitting	175
Hydrogen production from wet biomass via a formic acid route under mild conditions	172
Porous heterojunction CoSe2–MoSe2 nanosheet arrays for electrocatalytic oxygen evolution	171
Impact of hydrogen addition, up to 20 % (mol/mol), on the thermodynamic (p, ρ, T) properties of a reference high-calorific natural gas mixture with significant ethane and propane content	167
What determines the stability of Fe-N-C catalysts in HT-PEMFCs?	166
Improvement of hydrogenation sorption properties of Ti0.90V0.30Mn1.00Ni0.80 for ultra-high pressure metal-hydride compressor	165
Research on the effects of coal dust parameters on the venting characteristics of gas/dust two-phase explosions	164
A parametric examination of the energetic, exergetic, and environmental performances of the geothermal energy-based multigeneration plant for sustainable products	160
Design of Cu-containing (Pr,Ba)FeO3-based perovskite electrodes for protonic ceramic electrochemical cells	159
Analysis of risk evolution mechanisms for hydrogen leakage in HECS: A dynamic Bayesian network and scenario deduction approach	158
Guest editorial for the special issue hydrogen production based on papers selected from the 23rd world hydrogen energy conference (WHEC-2022)	157
Construction of a urea-assisted electrolytic energy-saving hydrogen production system using catalysts prepared by molybdate	157
Hydrogen evolution reaction of ammonium borane at bimetal atoms supported by porous g-C3N4 surface: Mechanistic insights from theoretical studies	156
Editorial Board	155
Editorial Board	154
Editorial Board	154
Coulombic interaction-based S-scheme heterojunction between amorphous calcium titanium oxide and protonated carbon nitride nanosheets for efficient solar hydrogen production	153
Guest editorial for special issue EFC21	153
Thermodynamic modeling and optimal short-term scheduling of a green H2-fueled combined heat and power generation system for industrial zones	152
Metallic gallium: A liquid phase to destabilize nanoconfined LiBH4	150
Co-doping of SiO2 and ZrO2 for the synthesis of energy-saving PbO2 anode material for trivalent chromium electroplating	150
The fabrication of integrated proton exchange membrane fuel cells: Excellent mechanical strength and electrochemical performance	149
Ti-substituted organosilica membranes for H2 sieving: Sol-gel and DFT insights	149
First principles study on strain effect of hydrogen diffusion and dissolution behavior in Ruthenium	149
Enhanced electrochemical hydrogen storage performance of titanate-based nanostructures synthesized by facile auto-combustion: Li2TiO3 nanostructures versus LaTiO3 nanoperovskites	148
The influence of thermal treatment on recirculating two phase anaerobic digestion system	147
Waste to hydrogen: Investigation of different loads of diesel engine exhaust gas	146
Influence of cobalt dopant in NiFe2-xCoxO4 (0≤x≤2) on electrochemical catalytic properties	146

Observer-based decoupling control of air flow and pressure in fuel cell systems	145
Cost reduction strategy for microtubular solid oxide fuel cells: Integrating tape casting, isostatic pressing and co-sintering	144
Fluid secretion in rotating cylinder when flow impinge its surface and thermal analysis with energy dissipation: Polynomials based solution	142
Environmental remediation through tandem hydrogenolysis of polyethylene and H2 evolution over butterfly shaped MoO3@RuO2 heterostructures	140
How to determine whether an electron transfer channel is type-II or S-scheme in g–C3N4–based photocatalysts? A critical review	140
Carbon-based materials for Mg-based solid-state hydrogen storage strategies	140
Performance assessment of anion exchange electrolyzer with PBI-BASED membrane through 0-D modeling	139
Experiments on the thermal activation of hydrogen release of NaBH4-sodalites characterized by IR- and MAS-NMR spectroscopy	139
Effect of specific microstructures on hydrogen embrittlement susceptibility of a modified AISI 4130 steel	135
Research status and progress in degradation of organic pollutants via hydrogen evolution reaction and oxygen evolution reaction in wastewater electrochemical treatment	135
Bimetallic ZnNi co-catalyst modified g-C3N4 nanosheets for highly efficient photocatalytic hydrogen evolution	134
Investigation for the hydrogen storage properties of XCrH3 (X=Na, K) and KYH3(Y Mo, W) perovskite type hydrides based on first-principles	134
From shape to function: Constructing gourd-shaped bimetal/semiconductor hybrids for boosted photocatalytic hydrogen evolution	134
Accelerated discovery of hydrogen storage hydride perovskites: A combined machine learning and first-principles approach	133
Microwave synthesized erbium vanadate nano-photocatalyst: Application for enhanced degradation of contaminated water	133
Recent advancement in water electrolysis for hydrogen production: A comprehensive bibliometric analysis and technology updates	133
Dense 1,2,4,5-tetramethylimidazolium-functionlized anion exchange membranes based on poly(aryl ether sulfone)s with high alkaline stability for water electrolysis	131
Design and performance analyses of graphene-nano plasmonic devices for wireless gas sensor applications	130
A review of anion exchange membranes prepared via Friedel-Crafts reaction for fuel cell and water electrolysis	130
Branched Glucan from Leuconostoc Mesenteroides as the channel for ionic migration in the fabrication of protonic (H+) battery	130
Core-shell hetero-phase reduced Ti–Ni–O nanotubes photoanode with enhanced optical absorption and charge transport for boosted photoelectrochemical water splitting	130
Green hydrogen electrolyzer and hydrogen-methane CCGT power plant in NEOM City	129
Recent trends and outlooks on engineering of BiVO4 photoanodes toward efficient photoelectrochemical water splitting and CO2 reduction: A comprehensive review	128
Interfacial properties of the hydrogen+brine system in the presence of hydrophilic silica	128
Study on the evacuation of gas in bulk-fill insulation materials used in large-scale LH2 storage tanks	127
Detonation effect of hydrogen-oxygen mixtures at various initial pressures and hydrogen concentrations in obstructed channels	127
0D-3D-1D nanoarchitectured CQDs modified NiFe layered double hydroxides supported with MWCNTs: Enhanced electrocatalytic performance for oxygen evolution reaction	126
Kinetics and microstructural changes during fluidized reduction of magnetite with hydrogen at low temperatures	125
Characterization of fatigue crack of hydrogen-charged austenitic stainless steel by electromagnetic and ultrasonic techniques	125
Numerical simulation of hydrogen explosion characteristics and disaster effects of hydrogen fueling station	125
Techno-economic analysis of hydropower based green ammonia plant for urea production in Nepal	125
Efficient band structure tuning of single-layer group IV-N semiconductors for visible-light-driven water splitting	125
AC/DC hybrid microgrid energy management optimization as a decisive factor towards De-Carbonization and rational integration of electrical self-generating units using three-objective grey wolf optimiz	124
Carbon dioxide emissions and mitigation in China's hydrogen energy supply chain: Insights for sustainability and policy development	124
H2 production via H2S decomposition over activated carbon supported Fe- and W- catalysts	123
Design of a circular-arc and variable-extended-cycloid rotor profile for hydrogen circulation pumps	123
Synthesis of methanethiol from CO2/H2S/H2 catalyzed by hollow nanospheres VS4 with high catalytic activity	123
An integrated geospatial model for evaluating offshore wind-to-hydrogen technical and economic production potential in Brazil	122
Comparative lifecycle assessment of hydrogen fuel cell, electric, CNG, and gasoline-powered vehicles under real driving conditions	122
Solid oxide fuel cell stack with enhanced performance and durability utilizing a porous Ag coating layer as the current collector	122
Liquid organic hydrogen carriers: Development of a thermodynamic and kinetic model for the assessment of hydrogenation and dehydrogenation processes	121
Recent research progress of catalysts for thermocatalytic ammonia decomposition	121
Digital twins based on machine learning for optimal control of chemical looping hydrogen generation processes	121
Effect of nitrogen on deflagration characteristics of hydrogen / methane mixture	121
Optimization of hydrothermal parameters and multifunctional catalytic activity of NiFe-LDH electrocatalyst	120
Formability improvement in multi-stage stamping of ultra-thin metallic bipolar plate for proton exchange membrane fuel cell	120