Green Hydrogen Energy Systems: A Review on Their Contribution to a Renewable Energy System

Energies, Journal Year: 2024, Volume and Issue: 17(13), P. 3110 - 3110

Published: June 24, 2024

Accelerating the transition to a cleaner global energy system is essential for tackling climate crisis, and green hydrogen systems hold significant promise integrating renewable sources. This paper offers thorough evaluation of hydrogen’s potential as groundbreaking alternative achieve near-zero greenhouse gas (GHG) emissions within framework. The explores current technological options assesses industry’s present status alongside future challenges. It also includes an economic analysis gauge feasibility hydrogen, providing critical review expectations levelized cost (LCOH). Depending on geographic location technology employed, LCOH can range from low EUR 1.12/kg high 16.06/kg. Nonetheless, findings suggest that could play crucial role in reducing GHG emissions, particularly hard-to-decarbonize sectors. A target approximately 1/kg by 2050 seems attainable, some geographies. However, there are still hurdles overcome before become cost-competitive alternative. Key challenges include need further advancements establishment policies reductions electrolyzers, which vital production.

Language: Английский

---

Electrochemical Cycling of Liquid Organic Hydrogen Carriers as a Sustainable Approach for Hydrogen Storage and Transportation

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Hydrogen (H2), as a high-energy-density molecule, offers clean solution to carry energy. However, the high diffusivity and low volumetric density of H2 pose challenge for long-term storage transportation. Liquid organic hydrogen carriers (LOHCs) have been suggested strategic way store transport in stable molecules. More so, electrochemical LOHC cycling renders an opportunity utilize renewable energy transportation toward goal eliminating carbon emissions. In this Perspective, examples reactions molecules their suitability couples are examined. A comparative footprint assessment processes against thermochemical hybrid was performed. The process had lowest relative only when highly concentrated LOHCs were used feed or purification product not required. diluted primarily contributed by distillation separation process. sensitivity analysis showed concentration dependence during Moreover, electrolyte composition significantly affects cycling. Energy utilization, water usage, toxicity discussed provide overview better economic environmental practices. There significant opportunities if appropriate conditions such concentrations reactant, reversible redox ability, Faradaic efficiencies, catalyst stabilities achieved.

Language: Английский

---

Influence of Steric Factors on the Processes of Hydrogenation of 1-Methylnaphthalene and Dehydrogenation of 1-Methyldecalin for Hydrogen Storage

Catalysis Letters, Journal Year: 2025, Volume and Issue: 155(3)

Published: Feb. 12, 2025

Language: Английский

---

Hydrogen energy storage with artificial intelligent-powered strategies for a sustainable future: A review

Journal of Mechanical Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Language: Английский

---

The performance of MOFs and rich structure types of stable Zr-MOFs in storing clean energy: Hydrogen

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 116, P. 115928 - 115928

Published: March 6, 2025

Language: Английский

---

Chemical‐based Hydrogen Storage Systems: Recent Developments, Challenges, and Prospectives

Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: 19(16)

Published: June 5, 2024

Hydrogen (H

Language: Английский

---

Recent progress in development of supported palladium catalysts for dehydrogenation of heterocyclic liquid organic hydrogen carriers (LOHC)

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 88, P. 97 - 119

Published: Sept. 19, 2024

Language: Английский

---

Compressed liquid density and thermodynamic modeling for the promising liquid organic hydrogen carrier Benzyltoluene/Dibenzyltoluene

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 102, P. 673 - 687

Published: Jan. 11, 2025

Language: Английский

---

Effect of Doping on Electrocatalytic Dehydrogenation and Hydrogenation of Methyl Decalin–Methyl Naphthalene System

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

The hydrogen economy can benefit from the use of liquid organic carriers (LOHCs) for cross-continent transportation in future. However, dehydrogenation and hydrogenation require catalytic systems. Current research emphasizes selective Pt/Rh doping Fe, Co, Ni surfaces as catalysts methyl naphthalene–methyl decalin LOHC system, which has more than 7% weight capacity meets practical requirements established by European Union United States Department Energy. Density functional theory-based computational techniques demonstrate how chemical modification these with a Pt Rh single-atom catalyst (SAC) improve efficiency hydrogenation. With sustainable method, electrochemical on robust produce effective storage extended periods without losing hydrogen. Furthermore, optimal results 2-methyl naphthalene Fe–Rh SAC path-determining step (PDS) = 0.98 eV 1-methyl Fe–Pt PDS 1.49 were obtained most active sites enhanced process. This study offers new possibilities systems highlighting impact transition-metal-based catalysts.

Language: Английский

---

Advanced TiO2-Based Photocatalytic Systems for Water Splitting: Comprehensive Review from Fundamentals to Manufacturing

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1127 - 1127

Published: Feb. 28, 2025

The global imperative for clean energy solutions has positioned photocatalytic water splitting as a promising pathway sustainable hydrogen production. This review comprehensively analyzes recent advances in TiO2-based systems, focusing on materials engineering, source effects, and scale-up strategies. We recognize the advancements nanoscale architectural design, engineered heterojunction of catalysts, cocatalyst integration, which have significantly enhanced efficiency. Particular emphasis is placed crucial role chemistry system performance, analyzing how different sources-from wastewater to seawater-impact evolution rates stability. Additionally, addresses key challenges scaling up these including optimization reactor light distribution, mass transfer. Recent developments artificial intelligence-driven discovery process are discussed, along with emerging opportunities bio-hybrid systems CO2 reduction coupling. Through critical analysis, we identify fundamental propose strategic research directions advancing technology toward practical implementation. work will provide comprehensive framework exploring advanced composite developing efficient scalable multifunctional simultaneous

Language: Английский

---