X‐Ray Absorption Spectroscopy of Oxides and Oxidation Catalysts

Stockenhuber, Michael

doi:10.1002/9783527626113.ch7

Cited by 2 publications

(1 citation statement)

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“…The experimental complications involved with XAS (namely, access to synchrotron radiation limited to only a few dozen light-sources worldwide) make the use of the spectroscopic techniques detailed in preceding sections more prevalent. For further details on XAS theory and experimental techniques, refer to refs , , and .…”

Section: Common Characterization Techniques For Metal Oxide Catalystsmentioning

confidence: 99%

Aerobic Oxidations of Light Alkanes over Solid Metal Oxide Catalysts

et al. 2017

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Heterogeneous metal oxide catalysts are widely studied for the aerobic oxidations of C-C alkanes to form olefins and oxygenates. In this review, we outline the properties of supported metal oxides, mixed-metal oxides, and zeolites and detail their most common applications as catalysts for partial oxidations of light alkanes. By doing this we establish similarities between different classes of metal oxides and identify common themes in reaction mechanisms and research strategies for catalyst improvement. For example, almost all partial alkane oxidations, regardless of the metal oxide, follow Mars-van Krevelen reaction kinetics, which utilize lattice oxygen atoms to reoxidize the reduced metal centers while the gaseous O reactant replenishes these lattice oxygen vacancies. Many of the most-promising metal oxide catalysts include V surface species as a necessary constituent to convert the alkane. Transformations involving sequential oxidation steps (i.e., propane to acrylic acid) require specific reaction sites for each oxidation step and benefit from site isolation provided by spectator species. These themes, and others, are discussed in the text.

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Section: Common Characterization Techniques For Metal Oxide Catalystsmentioning

confidence: 99%

Aerobic Oxidations of Light Alkanes over Solid Metal Oxide Catalysts

et al. 2017

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Properties of Nanocatalytic Materials for Hydrogen Production from Renewable Resources

Xianqin

2013

Nanocatalysis Synthesis and Applications

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INTRODUCTIONHeterogeneous catalysis is an integral part of more than 90% of chemical manufacturing processes worldwide. 1 It has been improving in both energy production and environment on the Earth (i.e., reduced crude cracking). Currently, almost 85% of the world energy demand is fulfilled by oil, natural gas, and coal. 2 These finite resources will deplete within less than 120 years. 3 Moreover, the alternative nonconventional energy sources, such as solar energy, geothermal energy, and nuclear energy, are difficult to grow rapidly to fill the gap. Additionally, CO 2 emissions, mainly from fossil energy combustion, 4 have increased tremendously in the past 150 years (from 280 to 370 ppm). The standard of living conditions is improving constantly at the expense of higher energy consumption. However, we cannot afford to meet our energy needs at the cost of environmental and climate deterioration in the twenty-first century. The aforementioned challenges urge us to develop alternative and clean energy resources to secure the sustainability of human society and the environment.Combustion of H 2 is an attractive alternative; unlike fossil fuels, its only combustion by-product is water. In addition, H 2 possesses the highest energy content per unit weight than any other fuels, almost three times that of gasoline. Furthermore, H 2 is available from a variety of sources in the universe. Thus, H 2 has been considered to be the best solutions to the potential energy crisis. 5 It has also been globally used in ammonia Nanocatalysis: Synthesis and Applications, First Edition. Edited by Vivek Polshettiwar and Tewodros Asefa.

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X‐Ray Absorption Spectroscopy of Oxides and Oxidation Catalysts

Cited by 2 publications

References 65 publications

Aerobic Oxidations of Light Alkanes over Solid Metal Oxide Catalysts

Aerobic Oxidations of Light Alkanes over Solid Metal Oxide Catalysts

Properties of Nanocatalytic Materials for Hydrogen Production from Renewable Resources

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