193Ir Mössbauer spectroscopy of Pt–IrO2 nanoparticle catalysts developed for detection and removal of carbon monoxide from air

Sawicki, J.; Marcinkowska, K.; Wagner, F. E.

doi:10.1016/j.nimb.2010.04.028

Cited by 8 publications

(3 citation statements)

References 15 publications

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“…Supports exhibiting not only electronic conductivity, but also proton conductivity, such as tungsten bronzes H x WO 3 , are even more promising [105]. Finally, of purely theoretical interest is the use of supports based on oxides of some noble metals, particularly ruthenium [106][107][108] and iridium [109][110][111], which also contribute to CO electrooxidation.…”

Section: Supports For Platinum Catalystsmentioning

confidence: 99%

Interfaces in Materials for Hydrogen Power Engineering

Стенина

Yaroslavtsev

2019

Membr. Membr. Technol.

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Hydrogen power engineering is based on the production of hydrogen and subsequent oxidation of it to generate electrical energy. Using the example of ion-exchange membranes, catalysts for low-temperature fuel cells, and catalysts for alcohol steam reforming, the features of the transfer, catalysis, and electrocatalysis in hydrogen power engineering are discussed. Particular attention is paid to the role of interfaces. The occurrence of transport processes in ion-exchange membranes is determined by a system of pores and channels that are formed in the membranes owing to self-organization processes. The main selective transport of counterions occurs in a thin Debye layer at the interface between the polymer and the water solution that fills the pores. The transport of gases in these systems occurs through an electrically neutral solution localized in the center of the pores; it can be controlled by introducing nanoparticles into the pores. Catalytic processes in fuel cells occur at the interface between three phases, namely, the catalyst, the support, and the proton-conducting component. The role of the support in the stabilization and enhancement of the power of fuel cells is discussed. Despite the significant difference, the laws governing the catalytic processes of alcohol steam reforming are similar to those of fuel cells in many respects. The nature of metal catalysts is responsible for the preferred direction of the process, whereas the nature of the support largely determines the catalyst performance.

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Section: Supports For Platinum Catalystsmentioning

confidence: 99%

Interfaces in Materials for Hydrogen Power Engineering

Стенина

Yaroslavtsev

2019

Membr. Membr. Technol.

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“…CO in humid air at ambient conditions (Sawicki et al, 2010). In order to obtain desired ultrahigh dispersion of bimetallic particles and verify the availability of catalytically active species, the catalytic activity of specimens was tested and the CO concentration at the outlet of the test reactor was measured against reaction time, shown in Figure 5.…”

Section: Overview Of Hydrophobic Catalyst Over Sdb 1243mentioning

confidence: 99%

An Overview of Hydrophobic Catalyst Over Styrene-Divinylbenzene Copolymer

Wang

Ran

2012

Chemical Engineering Communications

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“…[10][11][12][13] Adsorption, as a technique with increasingly innovative applications, in number and type, is one of the most appropriate easy ways to remove CO gas pollutant before being liberated. [14][15][16][17] Natural clay minerals, in particular, have received much attention as an abundant, possible low-cost, and environment friendly material that can be used for different applications. Because of their large propensity for adsorbing and immobilizing extraneous species, clay minerals can serve as material for pollution control, carriers of pesticides, liners in waste disposal, and barriers in nuclear waste management.…”

Section: Introductionmentioning

confidence: 99%

Density functional theory investigation of carbon monoxide adsorption on the kaolinite (001) surface

Zhao

et al. 2017

Chinese Phys. B

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Carbon monoxide (CO) is a gaseous pollutant with adverse effects on human health and the environment. Kaolinite is a natural mineral resource that can be used for different applications, including that it can also be used for retention of pollutant gases. The adsorption behavior of carbon monoxide molecules on the (001) surface of kaolinite was studied systematically by using density-functional theory and supercell models for a range coverage from 0.11 to 1.0 monolayers (ML). The CO adsorbed on the three-fold hollow, two-fold bridge, and one-fold top sites of the kaolinite(001) was tilted with respect to the surface. The strongest adsorbed site of carbon monoxide on the kaolinite (001) surface is the hollow site followed by the bridge and top site. The adsorption energy of CO decreased when increasing the coverage, thus indicating the lower stability of surface adsorption due to the repulsion of neighboring CO molecules. In addition to the adsorption structures and energetics, the lattice relaxation, the electronic density of states, and the different charge distribution have been investigated for different surface coverages.

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193Ir Mössbauer spectroscopy of Pt–IrO2 nanoparticle catalysts developed for detection and removal of carbon monoxide from air

Cited by 8 publications

References 15 publications

Interfaces in Materials for Hydrogen Power Engineering

Interfaces in Materials for Hydrogen Power Engineering

An Overview of Hydrophobic Catalyst Over Styrene-Divinylbenzene Copolymer

Density functional theory investigation of carbon monoxide adsorption on the kaolinite (001) surface

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