Electrochemical investigation of niobium doped nickel selenide nanostructure for supercapacitor devices DOI
Dalal A. Alshammari, Inas A. Ahmed,

Saeed D. Alahmari

et al.

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 75, P. 109886 - 109886

Published: Nov. 30, 2023

Language: Английский

Review on techno-economics of hydrogen production using current and emerging processes: Status and perspectives DOI Creative Commons
Medhat A. Nemitallah,

Abdulrahman A. Alnazha,

Usama Ahmed

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101890 - 101890

Published: Feb. 8, 2024

This review presents a broad exploration of the techno economic evaluation different technologies utilized in production hydrogen from both renewable and non-renewable sources. These encompass methods ranging extracting fossil fuels or biomass to employing microbial processes, electrolysis water, various thermochemical cycles. A rigorous techno-economic can provide critical cost comparison for future resource allocation, priorities, trajectory. will have great impact on projects development new approaches reduce overall costs make it cheaper fuel. Different exhibit varying efficiencies costs: fast pyrolysis yield up 45% at range $1.25 $2.20 per kilogram, while gasification, operating temperatures exceeding 750 °C, faces challenges such as limited small-scale coal issues with tar formation biomass. Steam methane reforming, which constitutes 48% output, experiences fluctuations depending scale, whereas auto-thermal reforming offers higher efficiency albeit increased costs. Chemical looping shows promise emissions reduction but encounters hurdles, sorption-enhanced achieves over 90% requires CO2 storage. Renewable liquid proves effective economically viable. Additionally, like PEM aim below $2.30 dark fermentation, though cost-effective, grapples challenges. Overcoming technical, barriers, managing electricity remains crucial optimizing low-carbon future, necessitating ongoing research efforts.

Language: Английский

Citations

41

Optimum sizing of hybrid renewable power systems for on-site hydrogen refuelling stations: Case studies from Türkiye and Spain DOI
Murat Gökçek, Nicola Paltrinieri, Yiliu Liu

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 59, P. 715 - 729

Published: Feb. 10, 2024

Language: Английский

Citations

25

A Comprehensive Review of Stainless-Steel Bipolar Plate Coatings and Their Role in Mitigating Corrosion in Aggressive Proton-Exchange Membrane Fuel Cells Environments DOI
Ji‐Hyeok Choi, Ha Eun Kang, Dong‐Joo Kim

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152662 - 152662

Published: May 29, 2024

Language: Английский

Citations

22

Freshwater supply for hydrogen production: An underestimated challenge DOI Creative Commons
Pranjal Kumar, Abhijit Date, Nasir Mahmood

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 78, P. 202 - 217

Published: June 25, 2024

This paper presents a thorough critical literature review aimed at understanding the challenges associated with freshwater supply rapidly growing global hydrogen economies. The has been prompted by fact that production projected for 2030 will create least an additional demand of 2.1 billion cubic meters freshwater, which needs to be addressed support sustainable development emerging key solutions explored this study include seawater and wastewater treatment methods large-scale generation, along newly introduced technique direct seawater-fed electrolysis. Prior research indicates desalination technologies, including reverse osmosis membrane distillation, also offer promising avenues costs comparable other techniques. Additionally, low-temperature such as distillation could play significant role in electrolysis, underscoring importance exploring waste recovery opportunities within system (e.g., fuel cell heat recovery). identifies gaps need overcome enhance sustainability techno-economic viability energy systems.

Language: Английский

Citations

20

Hydrogen and the Global Energy Transition—Path to Sustainability and Adoption across All Economic Sectors DOI Creative Commons
Praveen Cheekatamarla

Energies, Journal Year: 2024, Volume and Issue: 17(4), P. 807 - 807

Published: Feb. 8, 2024

This perspective article delves into the critical role of hydrogen as a sustainable energy carrier in context ongoing global transition. Hydrogen, with its potential to decarbonize various sectors, has emerged key player achieving decarbonization and sustainability goals. provides an overview current state technology, production methods, applications across diverse industries. By exploring challenges opportunities associated integration, we aim shed light on pathways toward economy. Additionally, underscores need for collaborative efforts among policymakers, industries, researchers overcome existing hurdles unlock full transition low-carbon future. Through balanced analysis present landscape future prospects, this aims contribute valuable insights discourse surrounding hydrogen’s

Language: Английский

Citations

19

Mg‐MOF‐74 Derived Defective Framework for Hydrogen Storage at Above‐Ambient Temperature Assisted by Pt Catalyst DOI
Shiyuan Liu, Yue Zhang,

Fangzhou Zhu

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(18)

Published: March 9, 2024

Abstract Metal–organic frameworks (MOFs) are promising candidates for room‐temperature hydrogen storage materials after modification, thanks to their ability chemisorb hydrogen. However, the adsorption strength of these modified MOFs remains insufficient meet capacity and safety requirements systems. To address this challenge, a highly defective framework material known as de‐MgMOF is prepared by gently annealing Mg‐MOF‐74. This retains some crystal properties original Mg‐MOF‐74 exhibits exceptional at above‐ambient temperatures. The MgO 5 knots around linker vacancies in can adsorb significant amount dissociated nondissociated hydrogen, with enthalpies ranging from −22.7 −43.6 kJ mol −1 , indicating strong chemisorption interaction. By leveraging spillover catalyst Pt, achieves reversible 2.55 wt.% 160 °C 81 bar. Additionally, offers rapid uptake/release, stable cycling, convenient capabilities. A comprehensive techno‐economic analysis demonstrates that outperforms many other system level on‐board applications.

Language: Английский

Citations

19

Integrated assessment of green hydrogen production in California: Life cycle Greenhouse gas Emissions, Techno-Economic Feasibility, and resource variability DOI
Loiy Al‐Ghussain, Mohammad Alrbai, Sameer Al‐Dahidi

et al.

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 311, P. 118514 - 118514

Published: May 9, 2024

Language: Английский

Citations

19

A review on recent advances on improving fuel economy and performance of a fuel cell hybrid electric vehicle DOI
Hussein Togun, Hakim S. Sultan Aljibori, Azher M. Abed

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 89, P. 22 - 47

Published: Sept. 25, 2024

Language: Английский

Citations

17

Review on the production of renewable biofuel: Solvent-free deoxygenation DOI Creative Commons
Kyung-Won Jeon,

Ji-Hyeon Gong,

Minju Kim

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 195, P. 114325 - 114325

Published: Feb. 22, 2024

Biofuel is an eco-friendly fuel that can reduce CO2 emissions by 65% compared to using petroleum-based fuels. The commercialized biodiesel, which contains oxygen atom within its molecules, only used in blends with diesel, but renewable diesel-like hydrocarbons, completely substitute However, the deoxygenation process produce diesel and jet fuel, solvents are injected enhance physical properties of reactants supply hydrogen, thereby increasing expenditure. Therefore, this review, research results published over past 10 years regarding production fuels under solvent-free conditions have been critically reviewed. effects feedstocks, atmospheric (type gas pressure), reaction temperature/time, catalyst type loading on mechanism catalytic performance carefully compared. Fatty acids triglycerides require reactions, while furan compounds necessitate not also aldol condensation reactions biofuel. Higher H2 pressure temperature activity, these parameters should be optimized considering cost side reactions. Noble metal catalysts reported exhibit high for economic reasons, non-noble transition metals being widely investigated. Ni most commonly catalysts, varies depending acidity acid sites catalyst. feasibility biofuels produced assessed comparing commercial fuel.

Language: Английский

Citations

16

Review on natural hydrogen wells safety DOI Creative Commons
Baojiang Sun, Mengjun Zhang, Qian Sun

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 3, 2025

Hydrogen is a promising clean energy source with geological reserves widely distributed globally, offering an annual flow exceeding 23 trillion grams. However, natural hydrogen extraction wells face unique safety challenges compared to conventional oil and gas wells. This paper reviews well concerns such as tubing/casing damage, cement/sealant failure, excessive annular pressure buildup. Key issues include embrittlement, microbiological corrosion, H2-cement reaction, H2-rubber degradation, which can lead mechanical failures. The review explores potential solutions like metal coatings, rubber fillers, cement additives mitigate these problems. It also emphasizes the need for further research validate under real-world conditions. Addressing crucial safe efficient of hydrogen. In this review, authors highlight wells, reaction. They identify within literature, emphasizing more

Language: Английский

Citations

4