Research on characteristics of thermoelectric generator with integrated muffler and catalytic converter

The evolution of microstructures of 10- to 100-Å diameter particles of Rh and Pt on SiO2 and Al2O3 following treatment in reducing, oxidizing, and reacting conditions have been characterized by TEM. We are able to transfer particles repeatedly between microscope and a reactor furnace so that the structural evolution of single particles can be examined following treatments in gases at atmospheric pressure. We are especially interested in the role of Ce additives on noble metals such as Pt and Rh. These systems are crucial in the automotive catalytic converter, and rare earths can significantly modify catalytic properties in many reactions. In particular, we are concerned with the oxidation state of Ce and its role in formation of mixed oxides with metals or with the support. For this we employ EELS in TEM, a technique uniquely suited to detect chemical shifts with ∼30Å resolution.

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High Resolution Transmission Electron Microscopy of an automobile catalytic converter

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100174345 ◽

1990 ◽

Vol 48 (4) ◽

pp. 242-243

Author(s):

Jan-Olle Malm ◽

Jan-Olov Bovin

Keyword(s):

Electron Microscopy ◽

High Resolution ◽

Catalytic Converter ◽

Active Material ◽

Image Intensifier ◽

High Resolution Electron Microscopy ◽

Detailed Knowledge ◽

Transmission Electron ◽

Resolution Electron ◽

Atomic Surface

Understanding of catalytic processes requires detailed knowledge of the catalyst. As heterogeneous catalysis is a surface phenomena the understanding of the atomic surface structure of both the active material and the support material is of utmost importance. This work is a high resolution electron microscopy (HREM) study of different phases found in a used automobile catalytic converter.The high resolution micrographs were obtained with a JEM-4000EX working with a structural resolution better than 0.17 nm and equipped with a Gatan 622 TV-camera with an image intensifier. Some work (e.g. EDS-analysis and diffraction) was done with a JEM-2000FX equipped with a Link AN10000 EDX spectrometer. The catalytic converter in this study has been used under normal driving conditions for several years and has also been poisoned by using leaded fuel. To prepare the sample, parts of the monolith were crushed, dispersed in methanol and a drop of the dispersion was placed on the holey carbon grid.

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Thermoelectric effect and thermoelectric generator based on carbon nanostructures: achievements and prospects

Uspekhi Fizicheskih Nauk ◽

10.3367/ufnr.2020.06.038795 ◽

2020 ◽

Author(s):

Evgeny D. Eidel'man

Keyword(s):

Carbon Nanostructures ◽

Thermoelectric Generator ◽

Thermoelectric Effect

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EXPERIMENTAL INVESTIGATION TO ENHANCE THE POWER GENERATION FOR THERMOELECTRIC GENERATOR UNIT

Heat Transfer Research ◽

10.1615/heattransres.2018025947 ◽

2019 ◽

Vol 50 (5) ◽

pp. 451-462

Author(s):

Abhishek Khanchi ◽

Mani Kanwar Singh ◽

Harkirat Sandhu ◽

Satbir Sehgal

Keyword(s):

Power Generation ◽

Experimental Investigation ◽

Thermoelectric Generator ◽

Generator Unit

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INFLUENCE OF THOMSON EFFECT ON EFFICIENCY OF THERMOELECTRIC GENERATOR

10.1615/ihtc16.mpe.023392 ◽

2018 ◽

Cited By ~ 1

Author(s):

Yuanyuan Wang ◽

Mengjun Zhang ◽

Yuanyuan Tian ◽

Zihua Wu ◽

Jiaojiao Xing ◽

...

Keyword(s):

Thermoelectric Generator ◽

Thomson Effect

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EMISSION OF POLYCYCLIC AROMATIC HYDROCARBONS CONTAINED IN COMBUSTION PRODUCTS OF GASOLINE ENGINES

Doklady of the National Academy of Sciences of Belarus ◽

10.29235/1561-8323-2018-62-3-341-346 ◽

2018 ◽

Vol 62 (3) ◽

pp. 341-346 ◽

Cited By ~ 1

Author(s):

M. Assad ◽

V. V. Grushevski ◽

O. G. Penyazkov ◽

I. N. Tarasenko

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Aromatic Hydrocarbons ◽

High Speed ◽

Internal Combustion Engines ◽

Catalytic Converter ◽

Combustion Products ◽

Chromatography Method ◽

Exhaust Gases ◽

Polycyclic Aromatic ◽

Load Mode

The concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in the gasoline combustion products emitted into the atmosphere by internal combustion engines (ICE) has been measured using the gas chromatography method. The concentrations of PAHs in the exhaust gases sampled behind a catalytic converter has been determined when the ICE operates in five modes: idle mode, high speed mode, load mode, ICE cold start mode (engine warm-up) and transient mode. Using 92 RON, 95 RON and 98 RON gasoline the effect of the octane number of gasoline on the PAHs content in the exhaust gases has been revealed. The concentration of the most carcinogenic component (benzo(α)pyrene) in the exhaust gases behind a catalytic converter significantly exceeds a reference value of benzo(α)pyrene in the atmospheric air established by the WHO and the EU for ICE in the load mode.

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