Hydrogen role in energy transition: A comparative review

Process Safety and Environmental Protection, Год журнала: 2024, Номер 184, С. 1069 - 1093

Опубликована: Фев. 15, 2024

Язык: Английский

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Solar photovoltaic–thermal hydrogen production system based on full-spectrum utilization

Journal of Cleaner Production, Год журнала: 2023, Номер 430, С. 139340 - 139340

Опубликована: Окт. 16, 2023

Язык: Английский

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Performance evaluation and multi-objective optimization of a solar-thermal-assisted energy system: Supercritical CO2 Brayton cycle and solid oxide electrolysis/fuel cells

Energy Conversion and Management, Год журнала: 2024, Номер 308, С. 118404 - 118404

Опубликована: Апрель 10, 2024

Typical solar power tower (SPT) systems employ molten salt as the heat transfer and thermal energy storage medium to facilitate stable output. However, these are constrained by their limited operating temperature, which is insufficient supply for high-temperature electrolysis. In this paper, a small-scale (2.5 MW) solar-thermal-assisted system with SPT, supercritical CO2 (SCO2) Brayton cycle, solid oxide electrolysis/fuel cells (SOEC/SOFC) proposed. With via air, SOEC subsystem can operate at 800 ℃ reach high efficiency reduce electric demand, replaces conventional waste from flue gas produced fossil fuel combustion. Such convert excess electricity into hydrogen or sale provides 24 h day. The key factors determining performance investigated, including turbine inlet parameters, main compressor recompression fraction of SCO2 subsystem, temperature current density SOEC/SOFC subsystems. case study shows that net output 13365.4 kWh/d in summer ℃, 86.7 % higher compared 7157.6 when 600 ℃. To recoup investment costs 20th year, must be priced 6.5 $/kg. After multi-objective optimization, optimal exergy capital SPT-SCO2-SOEC determined 29.6 3.65 M$, respectively. For SOFC corresponding figures 56.1 0.23 M$ investment. This benefits generation production

Язык: Английский

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Comprehensive evaluation of the influence of PEM water electrolyzers structure on mass transfer performance based on entropy weight method

International Journal of Heat and Mass Transfer, Год журнала: 2024, Номер 231, С. 125839 - 125839

Опубликована: Июнь 14, 2024

Язык: Английский

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A solar assisted grid-tied polygeneration system for hydrogen and electricity production: Future of energy transition from electrons to molecules

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 69, С. 559 - 569

Опубликована: Май 9, 2024

Язык: Английский

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Process integration and life cycle assessment of ethane thermal cracking, carbon capture, green hydrogen, CO2 hydrogenation and methanol to olefins

Sustainable Energy Technologies and Assessments, Год журнала: 2025, Номер 74, С. 104162 - 104162

Опубликована: Янв. 8, 2025

Язык: Английский

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Influence of Differences in Bilateral Chain Structure on the Performance of Poly(aryl piperidine) Anion Exchange Membranes for Water Electrolysis

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

As the core component of water electrolysis, anion-exchange membranes (AEMs) necessitate high ionic conductivity, favorable dimensional stability, and chemical stability. Nevertheless, current generation AEMs remains inadequate for achieving both conductivity long-term The side-chain strategy has been demonstrated to be an effective approach enhancing durability AEMs. In order achieve this objective, a series poly(aryl piperidine) were designed, featuring hydrophilic cationic side chains noncationic alkyl chains, with aim investigating impact grafting different on membrane properties. particular, PTBPA–BMB–OH displayed OH– (108.3 mS cm–1 at 80 °C) satisfactory uptake swelling rates 82.3% 24.9%, respectively. Moreover, AEMWE based exhibited density 467 mA cm–2 (1 M KOH solution, 2 V, 60 °C). results indicate that structural is method improve stability shows some potential application in field AEMWE.

Язык: Английский

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Steam electrolysis for green hydrogen generation. State of the art and research perspective

Renewable and Sustainable Energy Reviews, Год журнала: 2024, Номер 202, С. 114725 - 114725

Опубликована: Июль 4, 2024

With renewable energy sources projected to become the dominant source of electricity, hydrogen has emerged as a crucial carrier mitigate their intermittency issues. Water electrolysis is most developed alternative generate green so far. However, in past two decades steam attracted increasing interest and aims key player portfolio electrolytic hydrogen. In practice, follows distinct operational approaches: Solid Oxide Electrolysis Cell (SOEC) Proton Exchange Membrane (PEM) at high temperature. For both technologies, this work analyses critical cell components outlining material characteristics degradation The influence conditions on performance durability technologies thoroughly reviewed. analytical comparison alternatives underscores advantages drawbacks, highlighting niche applications: SOECs thrive temperature industries like steel production nuclear power plants whereas PEM suits lower applications such textile paper. Being less explored, ends up by suggesting research lines domain i) (membranes, catalysts gas diffusion layers) optimize scale technology, ii) integration strategies with energies iii) use seawater feedstock for production.

Язык: Английский

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Hyperchaotic power with wide current variation for efficient manganese electrodeposition

Chemical Engineering Science, Год журнала: 2024, Номер 293, С. 120010 - 120010

Опубликована: Март 16, 2024

Язык: Английский

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Sulfur poisoning on the La0.75Sr0.25Cr0.5Mn0.5O3-δ-Gd0.1Ce0.9O2-δ fuel electrode for direct electrochemical CO2 reduction in solid oxide electrolysis cells

Journal of Power Sources, Год журнала: 2023, Номер 592, С. 233930 - 233930

Опубликована: Дек. 14, 2023

Язык: Английский

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