Titania nanotubes supported platinum catalyst in CO oxidation process

Grigorieva, Anastasia V.; Goodilin, Eugene A.; Derlyukova, L. E.; Anufrieva, T. A.; Tarasov, Alexey B.; Dobrovolskii, Yuri A.; Tretyakov, Yuri D.

doi:10.1016/j.apcata.2009.04.011

Cited by 43 publications

(21 citation statements)

References 25 publications

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“…Platinum 4 f region overlaps with Al 2p as shown in Figure (b) for samples with Al 2 O 3 . However, these can be compared with Pt 4 f of 93%TiO 2 catalyst which has no aluminium and it is seen that Pt 4 f 7/2 peak for all three catalysts appear at 71.8 eV which can be attributed to Pt (0) state and a minor contribution from Pt (+2) at a higher energy of approximately 73 eV . The O 1s spectrum can be fitted with component peaks to show the existence of the related oxygens from the metal oxides (PdO, PdO 2 , TiO 2 or Al 2 O 3 ) and hydroxides at binding energies approximately 529–531.5 and 533.1 eV, respectively as seen in Figure (c).…”

Section: Resultsmentioning

confidence: 94%

Characterisation of Robust Combustion Catalyst from Aluminium Foil Waste

et al. 2018

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Herein a robust and active combustion catalyst was prepared with three‐quarter (75 wt.%) of its composition derived from the aluminium foil waste and designated as 5Pd‐ACFL550. The prepared catalyst was characterised using X‐ray diffraction (XRD), Temperature‐programmed reduction (TPR), Bright‐field transmission electron microscopy (BF‐TEM), High angle annular dark field (HAADF), Fourier transform infrared‐pyridine (FTIR‐Pyridine) and X‐ray Photoelectron Spectroscopy (XPS) techniques and compared to the commercial equivalent (5Pd‐AC550). The catalyst 5Pd‐ACFL550 showed higher catalytic activity than that of 5Pd‐AC550 in the total methane oxidation reaction with T50% at 303 °C at Gas hourly space velocity (GHSV) of 100,000 mL g−1 h−1. Our approach opens doors for the preparation of robust cheap combustion catalyst from aluminium foil waste and demonstrates its application in the catalytic converters of natural gas vehicles (NGV‐vehicles) and other combustion applications. As a result, this can be opened up to a wider variety of application markets, including residential and automotive applications.

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Section: Resultsmentioning

confidence: 94%

Characterisation of Robust Combustion Catalyst from Aluminium Foil Waste

et al. 2018

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“…These surface additives form strong electronic interaction with the sensing film resulting in the improved sensing behavior [5]. This interaction is generally known as synergy effect [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Platinum surface additive based nanostructured CuO films for ethanol sensing

Parmar

Rajanna

2012

2012 IEEE Sensors

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In the present work, Platinum (Pt)/Copper (II) oxide (CuO) thin film based ethanol sensors were fabricated by sputtering of Pt in varying concentrations over pre-sputtered nanostructured CuO films. The responses of these sensors as a function of Pt concentrations were studied using operating temperature modulation (200-450 °C) and ethanol concentration modulation (100-2500 ppm). During these modulations, it was found that the sensing response was maximum at operating temperature near 400 °C for all the samples irrespective of the Pt concentration dispersed over them. Moreover, the sensing behavior improves for lower Pt concentration (Pt/CuO-60s) and deteriorates for higher Pt concentration (Pt/CuO-120s). In comparison with bare CuO sample, the sensitivity of Pt/CuO-60s increased up to 22% in the linear range and 33% for maximum ethanol concentration. Hence, the well dispersed optimum Pt additive concentration improves the overall sensing behavior including sensitivity, linear working range and response as well as recovery time.

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“…This interest is associated first and foremost with the fact that a developed surface of the substrate prevents aggregation of immobilized metal nanoparticles and, to a certain extent, predetermines their size, which finally directly affects the intensity and frequency of surface plasmons, i.e., the possibility of enhancing the oscillation spectra of the analytes. On the other hand, fundamental interest in such investigations is caused by the possibility of analyzing the interconnection of the band structure of a composite metal-semiconductor with a system of surface levels and plasmon effects [16,17].…”

Section: Introductionmentioning

confidence: 99%

Immobilization of nanostructured metal silver at the surface of anodic titanium dioxide for the creation of composites with the surface plasmon resonance

et al. 2015

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X-ray-amorphous anodic titanium dioxide is proposed as a carrier of nanostructured silver with a controllable surface roughness for the creation of composite films with an effect of the surface plasmon resonance in the visible region for the spectroscopy of giant combinational scattering (GCS). A comparative analysis of GCS composites obtained by different methods of silver immobilization at the surface of a semiconductor TiO 2 (photolysis of silver nitrate (I), magnetron sputtering, and thermal decomposition of ammonium silver complex (I)) has shown a substantial dependence of the functional characteristics on preparation history in the case of model analytes with different spectral characteristics, i.e., dyes of rhodamine 6G and methylene blue in low concentrations of 1 × 10 -8 mol/L by an aliquot volume of less than 10 μL.

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Titania nanotubes supported platinum catalyst in CO oxidation process

Cited by 43 publications

References 25 publications

Characterisation of Robust Combustion Catalyst from Aluminium Foil Waste

Characterisation of Robust Combustion Catalyst from Aluminium Foil Waste

Platinum surface additive based nanostructured CuO films for ethanol sensing

Immobilization of nanostructured metal silver at the surface of anodic titanium dioxide for the creation of composites with the surface plasmon resonance

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