Results 11 to 20 of about 40,458 (261)

Chemical kinetics analysis of a zinc-air fuel cell [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2023
Zinc-air batteries and zinc-air fuel cells (ZAFC) are types of metal-air batteries that use zinc and oxygen from the air to generate power. They have high energy densities and are cost-effective to manufacture.
Parisa Akbarian, Mehdi Kheirmand
doaj   +1 more source

Investigating the Effect of Ni Loading on the Performance of Yttria-Stabilised Zirconia Supported Ni Catalyst during CO2 Methanation

open access: yesMethane, 2023
CO2 methanation was studied on Ni-based yttria-stabilised zirconia (Ni/YSZ) catalysts. The catalysts were prepared by the wet impregnation method, where the amount of Ni content was varied from 5% to 75%.
Osaze Omoregbe   +3 more
doaj   +1 more source

Medium Temperature Shift Reaction Over Copper-Ceria catalyst in Fixed-Bed and Microchannel Reactors [PDF]

open access: yesIranian Journal of Chemical Engineering, 2021
One of the effective catalysts for hydrogen purification and production via medium temperature shift reaction, is Cu-Ce solid solution. Cu0.1Ce0,9O1.9 was produced using co-precipitation method and then was utilized as support for 5Cu/Ce0.9Cu0.1O1.9 ...
A. Irankhah, Y. Davoodbeygi
doaj   +1 more source

Screening of important factors affecting the process of ammonia synthesis by Plackett-Burman method and process optimization with RSMScreening the Important Factors Affecting the Process of Ammonia Synthesized by the Plackett-Burman Method and the Process Optimization with RSM [PDF]

open access: yesIranian Journal of Chemical Engineering, 2022
The optimization of the ammonia synthesis plant to increase the production of ammonia is studied in this line of research. In this paper, the steady-state ammonia synthesis is simulated using the Aspen HysysV.11 software.
A. H. Oudi, A. Irankhah
doaj   +1 more source

Copper Catalysts Supported on CeMnO2 for CO Oxidation in Hydrogen-Rich Gas Streams [PDF]

open access: yesIranian Journal of Chemical Engineering, 2015
e"> The CeMnO2 supports were prepared via co-precipitation method by ammonia as precipitating agent. The CuO/CeO2 and CuO/Ce(1-x)MnxO2 (x=0.1, 0.3 and 0.5) catalysts were synthesized by wet impregnation method.
N. Hoshyar   +2 more
doaj  

The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

open access: yesApplied Sciences, 2021
Micro-tubular solid oxide fuel cells (µT-SOFCs) are suited to a broad range of applications with power demands ranging from a few watts to several hundred watts. µT-SOFCs possess inherently favourable characteristics over alternate configurations such as
Oujen Hodjati-Pugh   +2 more
doaj   +1 more source

Evaluation of the Microstructure and the Electrochemical Properties of Ce0.8(1−x)Gd0.2(1−x)CuxO[1.9(1−x)+x] Electrolytes for IT-SOFCs

open access: yesApplied Sciences, 2020
The influence of copper addition (0.5–2 mol%) on the crystal structure, densification microstructure, and electrochemical properties of Ce0.8Gd0.2O1.9 synthesized in a one-step sol–gel combustion synthesis route has been studied.
Grazia Accardo   +2 more
doaj   +1 more source

Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation

open access: yesMetals, 2022
We developed a method to determine the activation energy for hydride decomposition using a Sieverts-type apparatus and the Kissinger equation, not using thermal analysis methods.
Myoung-Youp Song, Young-Jun Kwak
doaj   +1 more source

Effect of dopamine modification on the oxygen reduction reaction activity of Pt/C catalyst

open access: yesElectrochemistry Communications
Modifying Pt-based catalysts with organic molecules offers a promising strategy to enhance oxygen reduction reaction (ORR) performance. In this study, dopamine (DA) was used to modify Pt/C, and its impact on electrochemical behavior and ORR activity was ...
Guoyu Shi   +5 more
doaj   +1 more source

Three Methods for Application of Data from a Volumetric Method to the Kissinger Equation to Obtain Activation Energy

open access: yesMicromachines, 2022
Thermal analysis methods have been used in many reports to determine the activation energy for hydride decomposition (dehydrogenation). In our preceding work, we showed that the dehydrogenation rate of Mg-5Ni samples obeyed the first-order law, and the ...
Myoung Youp Song, Young Jun Kwak
doaj   +1 more source

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