A review on ethanol steam reforming for hydrogen production over Ni/Al2O3 and Ni/CeO2 based catalyst powders

Anil, Sezin; Indraja, S.; Singh, Rupesh Kumar; Appari, Srinivas; Roy, B.

doi:10.1016/j.ijhydene.2021.12.183

Cited by 75 publications

(42 citation statements)

References 159 publications

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“…In the past several years, increasing number of examples of morphology‐dependent catalytic properties of uniform oxide‐based NCs, such as Cu 2 O, [ 31‐36 ] Co 3 O 4 , [ 37 ] TiO 2 , [ 38‐39 ] ZnO, [ 40‐41 ] and Fe 2 O 3 [ 42‐43 ] have been comprehensively explored, also including several nice reviews published on this topic. [ 16‐24,44‐52 ]…”

Section: Introductionmentioning

confidence: 99%

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

et al. 2022

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Comprehensive Summary Recent progress in colloidal synthesis has realized the preparations of uniform nanocrystal (NC) model catalysts with rich and well‐controlled morphologies that were employed to explore structure‐activity relationships of powder catalysts, similar to single‐crystal‐based model catalysts under ultrahigh vacuum conditions but can work at the same conditions as powder catalysts without the “materials gap” and “pressure gap”. In this perspective, the CeO2‐based NC model catalysts with various morphologies are included and their relevant progresses are critically reviewed. The detailed descriptions of morphology‐controlled synthesis and characterizations of uniform CeO2 NCs, and morphology‐dependent catalysis of CeO2‐based NC model catalysts containing pure CeO2 NCs, CeO2‐supported oxide catalysts, and CeO2‐supported metal catalysts, provide us a comprehensive cognition in CeO2‐involved catalytic reactions and also open up a new approach for the fundamental studies of complex heterogeneous catalysis. Finally, a concept of oxide‐based NC model catalysts and outlook of oxide NCs acting not only as model catalysts for the fundamental study but also as the support in tailoring structures and optimizing performance of oxide‐involved catalysts are discussed.

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Section: Introductionmentioning

confidence: 99%

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

et al. 2022

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“…Moreover, almost no PAHs were detected in the cases with ethanol addition. Previous studies ,,− show that ethanol reactions follow a radical chain reaction mechanism. The hydroxyl group of ethanol adsorbs on the surface of the Ni/Al 2 O 3 reforming catalyst and forms CH 3 CH 2 O* by the breakage of the O–H bond at first.…”

Section: Resultsmentioning

confidence: 92%

Experimental Study on the Ethanol-Assisted Catalytic Steam Reforming of Endothermic Hydrocarbon Fuel

et al. 2023

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Thermal protection is a critical problem in the development of hypersonic aircraft. To enhance the thermal protection capability of hydrocarbon fuel, the ethanol-assisted catalytic steam reforming of endothermic hydrocarbon fuel was proposed. The result shows that the total heat sink can be significantly improved by the endothermic reactions of ethanol. A higher water/ethanol ratio can promote the steam reforming of ethanol and further increase the chemical heat sink. The addition of 10 wt % ethanol at 30 wt % water content can improve the total heat sink by 8–17% at 300–550 °C, which is caused by the heat absorption by phase transition and chemical reactions of ethanol. The reaction region of thermal cracking moves backward, resulting in the suppression of thermal cracking. Meanwhile, the addition of ethanol can inhibit the coke deposition and increase the working temperature upper limit of the active thermal protection.

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“…MAH B20 AL100 CE100 is 31.68% less expensive than diesel. Due to its high oxygen content, biodiesel burns cleaner and more efficiently than conventional diesel . This may become possible with the addition of a Al 2 O 3 and CeO 2 nanocomposite, which accelerates the rate at which fuel evaporates.…”

Section: Smoke Opacitymentioning

confidence: 99%

“…Due to its high oxygen content, biodiesel burns cleaner and more efficiently than conventional diesel. 36 This may become possible with the addition of a Al 2 O 3 and CeO 2 nanocomposite, which accelerates the rate at which fuel evaporates. As the nanoparticle concentration rises, the production of soot precursors and nitrogen oxides (NOx) is stifled.…”

Section: Smoke Opacitymentioning

confidence: 99%

Performance, Emission, and Catalytic Activity Analysis of AL₂O₃ and CEO₂ Nano-Additives on Diesel Engines Using Mahua Biofuel for a Sustainable Environment

Hameed

Muralidharan²

2023

ACS Omega

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Diesel engines are particularly harmful to the environment due to the high levels of pollution they release. This led to the discovery of a sustainable and environmentally friendly fuel source. Mahua oil transesterified into biofuel seems to be the most popular option. The possibilities for nano-additions to enhance engine performance while simultaneously lowering pollution levels are substantial. In this research, 20% by proportion mahua biodiesel (MAH B20) was mixed with varying concentrations of aluminum oxide (Al2O3) and cerium oxide (CeO2) nanoparticles, and their joint effects on a mono-cylinder diesel engine working at a speed of 1500 revolutions per minute (rpm) were evaluated. With the use of an ultrasonic bath, the nanoparticles and MAH B20 were blended at varying concentrations and a surfactant was added for stability. The investigations concluded that the combustion and emission properties of mahua biofuel were improved because of the higher volume to surface area ratio of the combined Al2O3 and CeO2 nanostructures. The best results are found when mahua biofuel is mixed with Al2O3 and CeO2 each at 100 parts per million (ppm). The blend MAH B20 AL100 CE100 exhibits reduced brake specific fuel consumption (BSFC) by 3.25%, increased brake thermal efficiency (BTE) by 1.39%, and reduced emissions of hydrocarbon (HC), oxides of nitrogen (NOX), and carbon monoxide (CO) by 30.73, 1.27, and 44.13%, respectively.

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A review on ethanol steam reforming for hydrogen production over Ni/Al2O3 and Ni/CeO2 based catalyst powders

Cited by 75 publications

References 159 publications

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

Experimental Study on the Ethanol-Assisted Catalytic Steam Reforming of Endothermic Hydrocarbon Fuel

Performance, Emission, and Catalytic Activity Analysis of AL₂O₃ and CEO₂ Nano-Additives on Diesel Engines Using Mahua Biofuel for a Sustainable Environment

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A review on ethanol steam reforming for hydrogen production over Ni/Al2O3 and Ni/CeO2 based catalyst powders

Cited by 75 publications

References 159 publications

Morphology‐Dependent Catalysis of CeO2‐Based Nanocrystal Model Catalysts

Morphology‐Dependent Catalysis of CeO2‐Based Nanocrystal Model Catalysts

Experimental Study on the Ethanol-Assisted Catalytic Steam Reforming of Endothermic Hydrocarbon Fuel

Performance, Emission, and Catalytic Activity Analysis of AL2O3 and CEO2 Nano-Additives on Diesel Engines Using Mahua Biofuel for a Sustainable Environment

Contact Info

Product

Resources

About

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

Morphology‐Dependent Catalysis of CeO₂‐Based Nanocrystal Model Catalysts

Performance, Emission, and Catalytic Activity Analysis of AL₂O₃ and CEO₂ Nano-Additives on Diesel Engines Using Mahua Biofuel for a Sustainable Environment