Structure-conductivity relationship of PrBaMnMoO6-δ through in-situ measurements: A neutron diffraction study

Afroze, Shammya; Torino, Nico; Reza, Sumon; Radenahmad, Nikdalila; Cheok, Quentin; Henry, Paul F.; Азад, Абул Калам

doi:10.1016/j.ceramint.2020.08.161

Cited by 7 publications

(5 citation statements)

References 51 publications

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“…e solid-state synthesis technique [18,[29][30][31][32][33] was applied to developing NdSrMn 2 O 5+δ . Oxide powders of Nd 2 O 3 (≥99.90%, Sigma-Aldrich), SrCO 3 (≥99.90%, Aldrich), and MnO (≥99.50%, Aldrich) were weighed according to their stoichiometric ratios and ground with the aid of a mortar and pestle using ethanol as a reagent [34]. e powders were calcined at 1000 °C for 10 hours after drying.…”

Section: Methodsmentioning

confidence: 99%

Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis

Afroze

Reza

Henry

et al. 2020

International Journal of Chemical Engineering

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Neutron diffraction is one of the best methods for structural analysis of a complex, layered perovskite material with low symmetry by accurately detecting the oxygen positions through octahedral tilting. In this research, the crystal structure of NdSrMn2O5+δ was identified through X-ray diffraction (XRD) and neutron powder diffraction (NPD) at room temperature (RT), which indicated the formation of a layered structure in orthorhombic symmetry in the Pmmm (no. 47) space group. Rietveld refinement of the neutron diffraction data has confirmed the orthorhombic symmetry with unit cell parameters (a = 3.8367 (1) Å, b = 3.8643 (2) Å, and c = 7.7126 (1) Å), atomic positions, and oxygen occupancy. Thermogravimetric analysis revealed the total weight loss of about 0.10% for 20–950°C temperature, which occurred mainly to create oxygen vacancies at high temperatures. Rietveld analyses concurred with the XRD and neutron data allowing correlation of occupancy factors of the oxygen sites.

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Section: Methodsmentioning

confidence: 99%

Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis

Afroze

Reza

Henry

et al. 2020

International Journal of Chemical Engineering

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“…In order to convert the chemical energy from the fuel into electrical energy, a fuel cell uses chemical processes to generate electricity [48][49][50][51]. In the fuel cell system, an electrolyte connects the positively charged cathode to a negatively charged anode [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

Super–protonic conductors for solid acid fuel cells (SAFCs): a review

Afroze

Reza

Somalu

et al. 2023

Eurasian j. phys. funct. mater.

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Fuel cell holds the promise of being environmentally friendly and becomes one of the alternatives for renewable energy. Solid acids have super-protonic behavior which allows them to become conductors. It can function at high temperatures. Hydration, on the other hand, may be used to improve the performance of the solid acid. Moreover, the conductivity, stability, and crystal structure of the solid acid compounds of the fuel cell are all influenced by the size of the electrolyte membrane. Very few works have been done on solid acid fuel cells which are still under investigation to make it one viable as well as a reliable alternative to clean, renewable energy. In general, this work will provide an overview of the variables or characteristics that affect the technical effectiveness and performance of the unique super-protonic conductors for solid acid fuel cells.

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“…Bio-oils can be purified and utilized as low-grade fuel for heating and diesel engines [19]. Syngas is upgraded and refined, before being utilized to generate energy and power in fuel cells and gas generators [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of Catalyst on the Yield and Quality of Bio-Oil for the Catalytic Pyrolysis of Biomass: A Comprehensive Review

Reza,

Iskakova,

Afroze

et al. 2023

Energies

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In the modern world, as the population rises and fossil fuel supplies decline, energy demands continue to rise. Moreover, the use of fossil fuels harms the ecology, contributing to pollution and global warming. In order to overcome these difficulties, several approaches are revealed, such as the utilization of biomass as a renewable source of energy. Studies revealed that biomass can be converted into bioenergy via several thermal conversion processes, like pyrolysis, gasification, and torrefaction. Pyrolysis is the most convenient process to obtain three different types of biofuels (biochar as a solid, bio-oil as a liquid, and syngas as a gas). The biofuels produced in this process are normally lower in quality and cannot be used directly as fuel because they contain many undesirable components. Catalytic pyrolysis is one of the best processes to upgrade the quality of biofuels. Several varieties of catalysts are used in the catalytic pyrolysis process (ex situ and in situ). Due to stable operating conditions, both catalytic and non-catalytic pyrolysis procedures produce biochar that has a consistent output. Meanwhile, the effects of catalysts in the catalytic pyrolysis process considerably enhance the quality and quantity of bio-oils and syngas. By removing the unwanted oxygenated and nitrogenous components, the bio-oils produced through the catalytic pyrolysis method have a higher calorific value, reduced viscosity, and improved stability. Many researchers have looked at ways to increase the rate of pyrolysis, whereas a few have focused on maximizing the effects of the factors in order to improve the efficiency of catalytic pyrolysis. This review addresses the impact of catalysts on the catalytic pyrolysis of biomass to enhance the quality of the bio-oils in great detail. Machine learning and techno-economic analysis were investigated, as well as the future potential of the catalytic pyrolysis method for the generation of bio-oil.

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Structure-conductivity relationship of PrBaMnMoO6-δ through in-situ measurements: A neutron diffraction study

Cited by 7 publications

References 51 publications

Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis

Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis

Super–protonic conductors for solid acid fuel cells (SAFCs): a review

Influence of Catalyst on the Yield and Quality of Bio-Oil for the Catalytic Pyrolysis of Biomass: A Comprehensive Review

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