A cofuel channel microtubular solid oxide fuel/electrolysis cell

Article Energy & Fuels

Impact of power-to-gas on the cost and design of the future low-carbon urban energy system

Jussi Ikaheimo et al.

Summary: This paper introduces an optimization model for power-to-gas technology in future urban energy systems, showing that power-to-gas can help cities achieve carbon neutrality and cost savings.

APPLIED ENERGY (2022)

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Article Energy & Fuels

High reversible cycling performance of carbon dioxide electrolysis by flat-tube solid oxide cell

Chaolei Li et al.

Summary: This study investigated the performance and stability of solid oxide cells (SOCs) during periodic cycles of CO(2) electrolysis and hydrogen fuel discharge. The experimental results showed that under the alternating charge and discharge operation, the SOCs exhibited good CO yield and CO2 conversion rate, with a relatively slow degradation rate.

APPLIED ENERGY (2022)

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Article Chemistry, Multidisciplinary

A novel multi-physics coupled heterogeneous single-cell numerical model for solid oxide fuel cell based on 3D microstructure reconstructions

Yunpeng Su et al.

Summary: A dynamic heterogeneous single-cell model based on 3D reconstructions of all SOFC components is proposed in this work, which can predict cell performance and analyze the factors affecting polarization characteristics. The model is validated by comparing the predicted current-voltage curves and Electrochemical Impedance Spectroscopy (EIS) with experimental data, and then applied in quantifying the performance degradation in a SOFC.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Energy & Fuels

Integrated energy systems with CCHP and hydrogen supply: A new outlet for curtailed wind power

Nan Li et al.

Summary: The new energy system proposed in the paper integrates hydrogen production and distribution system with the combined cooling, heating and power (CCHP) system, addressing the challenges of power system's stability and reducing carbon emissions in the transport sector simultaneously.

APPLIED ENERGY (2021)

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Article Energy & Fuels

Regenerative fuel cells: Recent progress, challenges, perspectives and their applications for space energy system

Zonghua Pu et al.

Summary: Regenerative fuel cells have unique advantages including high power density, high specific energy density, light-weight, low-cost, high efficiency, long-life, and zero environmental impact, making them a promising sustainable energy source. Electro catalysts and membranes are key components in unitized regenerative fuel cells that enhance system efficiency. Power performance and durability are important measures for regenerative fuel cells in space energy systems.

APPLIED ENERGY (2021)

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Article Energy & Fuels

Performance assessment and evaluation of SOC stacks designed for application in a reversible operated 150 kW rSOC power plant

Benjamin Koenigshofer et al.

Summary: Combining renewable energy sources with reversible operated high temperature solid oxide cells (rSOC) shows promise for storing and supplying clean energy. Experimental investigations on the performance of a rSOC stack under system relevant gas mixtures and operational conditions revealed different advantages and disadvantages between steam electrolysis (EC) and fuel cell (FC) operation.

APPLIED ENERGY (2021)

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Article Chemistry, Physical

On the reduction of electric energy consumption in electrolysis: A thermodynamic study

Deepinder Jot Singh Aulakh et al.

Summary: This study aims to reduce the production cost of hydrogen via electrolysis by using thermal energy instead of electric energy, ultimately achieving hydrogen production at higher temperatures through electrolysis. By supplementing the inlet steam with thermal energy from another process, the electricity demand can be significantly reduced, leading to cost savings and improved efficiency.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Analysis of current collection in micro-tubular solid oxide fuel cells: An empirical and mathematical modelling approach for minimised ohmic polarisation

O. Hodjati-Pugh et al.

Summary: Data from electrochemical impedance spectroscopy (EIS) coupled with equivalent circuit modelling (ECM) are used to investigate the impact of current collector configurations on ohmic polarisation and current distribution in segmented-in-series micro-tubular solid oxide fuel cells (?T-SOFC). Optimal positioning of current collectors can minimize performance losses and improve cell efficiency, but a trade-off between terminal sizing and active area loss must be considered for optimal current collection. The models developed provide criteria for determining maximum current collection efficiency for single and multiple anode current collectors across different cell geometries, aiding in early cell sizing considerations during development.

JOURNAL OF POWER SOURCES (2021)

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Article Energy & Fuels

Economic assessment of Power-to-Liquid processes ? Influence of electrolysis technology and operating conditions

Gregor Herz et al.

Summary: Power-to-Liquid processes are seen as crucial for a fossil-free raw material and energy system. The study focuses on various economic aspects, including integrating economic analysis into process modeling, comparing SOEL technology with low-temperature electrolysis, and highlighting the potential government support mechanisms.

APPLIED ENERGY (2021)

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Review Chemistry, Physical

A review on recent advances in micro-tubular solid oxide fuel cells

Xuebai Zhang et al.

Summary: Micro-tubular solid oxide fuel cells (MT-SOFCs) have attracted extensive attention due to their high efficiency and various advantages. In recent years, significant progress has been made in the development of MT-SOFCs, making them important for a wide range of applications.

JOURNAL OF POWER SOURCES (2021)

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Article Electrochemistry

Solid Oxide Electrolysis of H2O and CO2 to Produce Hydrogen and Low-Carbon Fuels

Yun Zheng et al.

Summary: Solid oxide electrolysis cells (SOECs), including oxygen ion-conducting SOEC (O-SOEC) and proton-conducting SOEC (H-SOEC), have been actively researched as next generation electrolysis technologies with high-energy conversion efficiencies, providing higher-temperature routes for energy storage and conversion. Current focus is on optimizing performance and stability, as well as promoting wider practical implementation.

ELECTROCHEMICAL ENERGY REVIEWS (2021)

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Article Chemistry, Physical

Infiltration of cerium into a NiO-YSZ tubular substrate for solid oxide reversible cells using a LSGM electrolyte film

Zhe Tan et al.

Summary: The study demonstrated that Ce nitrate has a positive effect on improving the performance and stability of solid oxide cells. Infiltration of Ce at higher concentrations led to a significant reduction in IR loss and overpotential, resulting in increased maximum power density.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Energy & Fuels