A dynamical model for the generation of H2 in microhydrated Al clusters

Rivero, Uxía; Álvarez‐Barcia, Sonia; Flores, Jesús R.

doi:10.1016/j.ijhydene.2018.10.177

Cited by 3 publications

(2 citation statements)

References 51 publications

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“…An important challenge for the research on hydrolysis of Al-based materials is dealing with the complexity of the potential energy surface during the Alwater reaction. Density Functional Theory (DFT) has been used to characterize the surface potential energy: Rivero et al 50) simplified the complexity of potential energy surfaces by dividing them into three regions (water cleavage, water dissociation, and compound structure). Zhao et al 51) analyzed five models for water adsorption on clusters, finding that water molecules form adsorption layers easily.…”

Section: Kinetic Model Of Aluminum-water Reactionmentioning

confidence: 99%

Hydrolytic Hydrogen Production from Severely Plastic Deformed Aluminum-Based Materials: An Overview

et al. 2023

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The development of hydrogen energy will help to reduce the use of nonrenewable energy sources and achieve global carbon neutrality. The aluminum-water reaction is an important method of producing hydrogen because aluminum has abundant reserves, a high yield, and no pollution. However, the dense passive oxide film on the surface of aluminum, on the other hand, often obstructs this reaction, which is the primary issue limiting the development of aluminum-based hydrolytic materials. Mechanochemical activation by processing severely plastic deformed aluminum-based materials is one effective approach and has been developed in recent years. This article reviews recent progress of hydrogen production from hydrolysis of severely plastic deformed aluminum-based materials. The kinetic model of aluminum-water reaction, aging protection of the materials, catalytic mechanism and stable rate control for the hydrolysis of aluminum-based materials are reviewed. Furthermore, some existing problems as well as some suggestions for future research on hydrogen production from aluminum-based materials are also discussed.

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Section: Kinetic Model Of Aluminum-water Reactionmentioning

confidence: 99%

Hydrolytic Hydrogen Production from Severely Plastic Deformed Aluminum-Based Materials: An Overview

et al. 2023

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“…Since the caustic base is not consumed in the reaction, it can be considered as a catalyst for this process. Also, a number of studies based on ab initio molecular dynamics simulations show that the chemical reactivity of Al changes drastically in the transition from microscopic particles to nanoparticles and clusters. ,− Combining the results of these studies with experimental data would be a significant step forward in engineering technology for hydrogen production based on the Al–water reaction.…”

Section: Introductionmentioning

confidence: 99%

Charge Transfer during the Aluminum–Water Reaction Studied with Schottky Nanodiode Sensors

et al. 2019

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The aluminum–water reaction is a promising source for hydrogen production. However, experimental studies of this reaction are difficult because of the highly concentrated alkaline solution used to activate the surface of aluminum. Here, we show that the reaction kinetics can be monitored in real time by a Schottky diode sensor, consisting of an ultrathin aluminum film deposited on a semiconductor substrate. Charge resulting from the corrosion of the aluminum film causes an electrical signal in the sensor, which is proportional to the rate of the chemical process. We discuss the possible mechanisms for the reaction-induced charge generation and transfer, as well as the use of Schottky diode based sensors for operando studies of the aluminum–water reaction and similar reactions on metals in concentrated alkaline solutions.

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A critical assessment of aluminum-water reaction for on-site hydrogen-powered applications

Kaur,

Verma

2024

Materials Today Energy

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A dynamical model for the generation of H2 in microhydrated Al clusters

Cited by 3 publications

References 51 publications

Hydrolytic Hydrogen Production from Severely Plastic Deformed Aluminum-Based Materials: An Overview

Hydrolytic Hydrogen Production from Severely Plastic Deformed Aluminum-Based Materials: An Overview

Charge Transfer during the Aluminum–Water Reaction Studied with Schottky Nanodiode Sensors

A critical assessment of aluminum-water reaction for on-site hydrogen-powered applications

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