Feasibility of electricity generation based on an ammonia-to-hydrogen-to-power system

Lim, Dongjun; Moon, Jong Ah; Yoon, Chang Won; Lim, Hankwon

doi:10.1039/d2gc04555a

Cited by 6 publications

(3 citation statements)

References 26 publications

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“…Its properties, including a high autoignition temperature of 650 • C (1202 • F) and greater density in both liquid and gaseous states compared with hydrogen, make its storage and transport logistics more favourable [66]. One drawback, however, is the energy-intensive reconversion of ammonia to hydrogen gas [67]. While ammonia's toxicity warrants caution, existing infrastructure manages this risk effectively [68].…”

Section: Ammonia In Gas Turbinesmentioning

confidence: 99%

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

Alnaeli,

Alnajideen,

Navaratne

et al. 2023

Energies

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This article reviews the critical role of material selection and design in ensuring efficient performance and safe operation of gas turbine engines fuelled by ammonia–hydrogen. As these energy fuels present unique combustion characteristics in turbine combustors, the identification of suitable materials becomes imperative. Detailed material characterisation is indispensable for discerning defects and degradation routes in turbine components, thereby illuminating avenues for improvement. With elevated turbine inlet temperatures, there is an augmented susceptibility to thermal degradation and mechanical shortcomings, especially in the high-pressure turbine blade—a critical life-determining component. This review highlights challenges in turbine design for ammonia–hydrogen fuels, addressing concerns like ammonia corrosion, hydrogen embrittlement, and stress corrosion cracking. To ensure engine safety and efficacy, this article advocates for leveraging advanced analytical techniques in both material development and risk evaluation, emphasising the interplay among technological progress, equipment specifications, operational criteria, and analysis methods.

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Section: Ammonia In Gas Turbinesmentioning

confidence: 99%

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

Alnaeli,

Alnajideen,

Navaratne

et al. 2023

Energies

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“…10,11 In battery EVs, batteries store and deliver energy to the powertrain, whereas a fuel cell EV generates electricity using hydrogen as a fuel, which subsequently delivers energy to the powertrain. 12 Fuel cells have several benefits over batteries, including instant recharging via a replacement or refilled fuel cartridge, independence from electricity, longer cell lifetime, low operating temperature, and higher free energy content of the fuel hydrogen. 2 Considering the environmental impact of depleted batteries and fuel cells, it is crucial to consider sustainable technologies like DES in the transition to EVs.…”

Section: Introductionmentioning

confidence: 99%

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Hariyanto,

Ng,

Siew

et al. 2023

Energy Fuels

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The rapid shift toward electric vehicles (EVs) is imperative for achieving the United Nations’ net-zero emissions target by 2050. This paper explores deep eutectic solvents (DESs) as sustainable alternatives to traditional solvents in batteries and fuel cells. DESs, sourced from renewables, offer numerous advantages, including low toxicity, affordability, and biodegradability, aligning with sustainable energy goals. The review underscores the importance of addressing challenges such as high viscosity, limited solubility, and compatibility issues for enhanced performance. This study primarily delves into how DESs can boost electrolyte performance through biosubstitution and ion recovery, extending their potential to metal recovery for resource efficiency. Additionally, DESs’ flame-retardant, antifreeze properties, and robust thermal and electrochemical stability enhance battery safety, positioning them as a promising avenue for future research. Given the ambitious EV transition targets set globally, this Review provides an overview of DES advancements and their integration with other materials and technologies. Despite potential drawbacks in specific energy and energy density, sodium-based batteries are emerging as a viable alternative to their lithium counterparts. The future of EVs and DESs in battery technology hinges on their economic viability, infrastructure development, and life cycle emissions. In conclusion, this study underscores the pivotal role of DESs in driving sustainable energy solutions during the EV transition.

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“…The practical utilization of hydrogen as a potential alternative to fossil fuel is limited by the challenges of storage and transportation. , Ammonia is a carbon-free chemical energy carrier with a hydrogen storage capacity of 17.7 wt%, and the liquefying of ammonia can be realized at room temperature under moderate pressure (8.0 bar), much milder than that of hydrogen . Besides, since ammonia has been widely applied in the agricultural and chemical industries, reliable infrastructures already exist for both ammonia storage and distribution .…”

Section: Introductionmentioning

confidence: 99%

Interface Engineering of PtZn Alloy and Nb₂O₅ for Promoting Ammonia Oxidation Reaction and Hydrogen Evolution Reaction

Tan,

Yu,

Zhai

et al. 2023

Langmuir

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Ammonia electrolysis is a promising technology to obtain green hydrogen with zero-carbon emission, in which ammonia oxidation reaction (AOR) and hydrogen evolution reaction (HER) occur at the anode and cathode, respectively. However, the lack of efficient catalysts hinders its practical application. Herein, PtZn alloy is combined with Nb 2 O 5 to construct a bifunctional heterostructure catalyst (PtZn-Nb 2 O 5 /C). The optimal sample with Nb 2 O 5 content of 7.05 wt % demonstrates the best performance with a peak current density of 304.1 mA mg −1 Pt for AOR, and it is only reduced by 17.0% after 4000 cycles of durability tests. For HER, it has a low overpotential of 34 mV at −10 mA cm −2 under the alkaline condition. This can be ascribed to the interfacial interaction between the PtZn alloy and Nb 2 O 5 , which adjusts the adsorption behavior of OH ad to concurrently promote AOR and HER activity. This work thus proposes a viable strategy to design an efficient bifunctional catalyst for hydrogen generation from ammonia electrolysis.

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Feasibility of electricity generation based on an ammonia-to-hydrogen-to-power system

Abstract: Techno-economic, carbon footprint, and scenario analyses of an ammonia-to-hydrogen-to-power system with different catalysts and fuels are conducted to evaluate its feasibility.

Cited by 6 publications

References 26 publications

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Interface Engineering of PtZn Alloy and Nb₂O₅ for Promoting Ammonia Oxidation Reaction and Hydrogen Evolution Reaction

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Feasibility of electricity generation based on an ammonia-to-hydrogen-to-power system

Abstract: Techno-economic, carbon footprint, and scenario analyses of an ammonia-to-hydrogen-to-power system with different catalysts and fuels are conducted to evaluate its feasibility.

Cited by 6 publications

References 26 publications

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

High-Temperature Materials for Complex Components in Ammonia/Hydrogen Gas Turbines: A Critical Review

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Interface Engineering of PtZn Alloy and Nb2O5 for Promoting Ammonia Oxidation Reaction and Hydrogen Evolution Reaction

Contact Info

Product

Resources

About

Interface Engineering of PtZn Alloy and Nb₂O₅ for Promoting Ammonia Oxidation Reaction and Hydrogen Evolution Reaction