Direct ammonia solid-oxide fuel cells: A review of progress and prospects

Rathore, Shambhu Singh; Biswas, Saheli; Fini, Daniel; Kulkarni, Aniruddha; Giddey, Sarbjit

doi:10.1016/j.ijhydene.2021.08.092

Cited by 111 publications

(43 citation statements)

References 124 publications

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“…Further decreases in p O 2 (or the degree of humidity) result in electron conductivity becoming a dominating factor in the overall transport of PCMs. These features should be considered when designing the protonic ceramic electrochemical devices, which operate in “dry” reducing atmospheres, including hydrogen production, alkane conversion 103–105 (ethane to ethylene, methane to benzene), ammonia synthesis, 106,107 etc. For example, the recent work of Wrubel et al 108 theoretically confirmed that cerium reduction of the BaCe 1− x − y Zr x Y y O 3− δ or BaCe 1− x − y − z Zr x Y y Yb z O 3− δ phases might significantly decrease the faradaic efficiency of the corresponding PCECs as compared with the BaZr 1− x Y x O 3− δ phases composed of cations (zirconium, yttrium ions) with stable oxidation states.…”

Section: Electronic Transport Of Individual Proton-conducting Materialsmentioning

confidence: 99%

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Zvonareva

Medvedev

et al. 2022

Energy Environ. Sci.

125

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Section: Electronic Transport Of Individual Proton-conducting Materialsmentioning

confidence: 99%

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Zvonareva

Medvedev

et al. 2022

Energy Environ. Sci.

125

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“…The reaction changes to the right side as the temperature rises, and to the left side as the pressure rises, producing less hydrogen. To achieve thermodynamic equilibrium of ammonia, the overall Gibbs energy of the process can be minimized [24,27,28]:…”

Section: Model Of the Sofcmentioning

confidence: 99%

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Duong

Ryu

Jung³

et al. 2022

Applied Sciences

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A novel integrated system based on solid oxide fuel cells (SOFCs), a gas turbine (GT), the steam Rankine cycle (SRC), the Kalina cycle (KC), and the organic Rankine cycle (ORC) is proposed to achieve cascade energy utilization. Mathematical models are introduced and system performance is analyzed using energy and exergy methods. The first and second laws of thermodynamics are used to analyze the system thermodynamically. In addition, exergy destruction and losses of the various integrated subsystems are calculated. The energy and exergy efficiencies of the multigeneration system are estimated to be 60.4% and 57.3%, respectively. In addition, the hot water produced during the waste heat recovery process may also be used for accommodating seafarers on ships. Sequential optimization is developed to optimize the operating conditions of the integrated system to achieve the required power output. A comprehensive parametric study is conducted to investigate the effect of varying the current densities of the fuel cell and working fluid of the ORC on the overall performance of the combined system and subsystems. The working performance of five working fluids for the ORC as candidates—R134a, R600, R601, R152a, and R124—is compared. R152a, which provides 71.23 kW of power output, and energy and exergy efficiencies of 22.49% and 42.76%, respectively, is selected as the best thermodynamic performance for the ORC.

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“…The lower cost of fabrication and long life span, while maintaining the properties mentioned earlier, are all key elements of an effective PEM. The main function of a PEM There are mainly four families of FCs, and they differ depending on their operating temperature and electrolyte: Proton Exchange Membrane Fuel Cell (PEMFC), alkaline cells (Phosphoric Acid Fuel Cell (PAFC) and Alkaline Fuel Cell (AFC)), Molten Carbonate Fuel Cell (MCFC), and Solid Oxide Fuel Cell (SOFC) [69][70][71]. FCs that operate below a temperature of 200 • C use precious metals (platinum) as catalysts at the two electrodes.…”

Section: Proton Exchange Membrane (Pemfc)mentioning

confidence: 99%

“…Because some terms are synonymous, the words were re-classified by grouping synonymous terms together to generate Figure 19b. According to the results, the top 10 most frequently used keywords are polymer electrolyte membrane fuel cell, fuel cell, oxygen reduction reaction, electrocatalysis, proton exchange membrane, gas diffusion layer, water management, polybenzimidazole, durability, and bipolar plate, with frequencies 117, 70,50,32,21,17,13,12,11,9, respectively. The gas diffusion layer serves as a pathway for the flow of the reactive substances from the inlet channels of the anode and cathode electrodes to the catalyst layers where the electrochemical reactions occur.…”

Section: Research Characteristics Hotspots and Frontiersmentioning

confidence: 99%

Research Progress, Trends, and Current State of Development on PEMFC-New Insights from a Bibliometric Analysis and Characteristics of Two Decades of Research Output

et al. 2022

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The consumption of hydrogen could increase by sixfold in 2050 compared to 2020 levels, reaching about 530 Mt. Against this backdrop, the proton exchange membrane fuel cell (PEMFC) has been a major research area in the field of energy engineering. Several reviews have been provided in the existing corpus of literature on PEMFC, but questions related to their evolutionary nuances and research hotspots remain largely unanswered. To fill this gap, the current review uses bibliometric analysis to analyze PEMFC articles indexed in the Scopus database that were published between 2000–2021. It has been revealed that the research field is growing at an annual average growth rate of 19.35%, with publications from 2016 to 2012 alone making up 46% of the total articles available since 2000. As the two most energy-consuming economies in the world, the contributions made towards the progress of PEMFC research have largely been from China and the US. From the research trend found in this investigation, it is clear that the focus of the researchers in the field has largely been to improve the performance and efficiency of PEMFC and its components, which is evident from dominating keywords or phrases such as ‘oxygen reduction reaction’, ‘electrocatalysis’, ‘proton exchange membrane’, ‘gas diffusion layer’, ‘water management’, ‘polybenzimidazole’, ‘durability’, and ‘bipolar plate’. We anticipate that the provision of the research themes that have emerged in the PEMFC field in the last two decades from the scientific mapping technique will guide existing and prospective researchers in the field going forward.

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Direct ammonia solid-oxide fuel cells: A review of progress and prospects

Cited by 111 publications

References 124 publications

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Research Progress, Trends, and Current State of Development on PEMFC-New Insights from a Bibliometric Analysis and Characteristics of Two Decades of Research Output

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