Exploring the Carbon Deposition Mechanism on Ni/Gd Ceria Catalysts

Carbon deposition on Ni/YSZ cermets and the role of Zr-doped ceria catalysts on carbon deposition have been investigated in the present study. Upon exposure to methane, large amounts of filamentous carbon formed on the surface of the cermets. In addition, carbon dissolved into the Ni particles, significantly expanding the dimensions of the entire pellet. The addition of Zr-doped ceria catalyst pellets on each side of the Ni/YSZ cermet significantly reduced the amount of deposited carbon and affected the structure of the deposits. In particular, the carbon was more weakly bound to the surface and appeared only to be deposited on the Ni/YSZ surface and not dissolved into the structure.

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The Carbon Deposition Mechanism in Vapor Phase Lubrication

Tribology Transactions ◽

10.1080/10402000008982367 ◽

2000 ◽

Vol 43 (3) ◽

pp. 480-488 ◽

Cited By ~ 8

Author(s):

Daxing Ren ◽

Andrew J. Gellman

Keyword(s):

Vapor Phase ◽

Carbon Deposition ◽

Vapor Phase Lubrication ◽

Deposition Mechanism

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A Raman spectroscopic study of the carbon deposition mechanism on Ni/CGO electrodes during CO/CO2 electrolysis

Physical Chemistry Chemical Physics ◽

10.1039/c4cp01503g ◽

2014 ◽

Vol 16 (26) ◽

pp. 13063-13068 ◽

Cited By ~ 27

Author(s):

V. Duboviks ◽

R. C. Maher ◽

M. Kishimoto ◽

L. F. Cohen ◽

N. P. Brandon ◽

...

Keyword(s):

Spectroscopic Study ◽

Carbon Deposition ◽

Ex Situ ◽

Deposition Mechanism ◽

Raman Spectroscopic ◽

Raman Spectroscopic Study ◽

Electrolyte Interface ◽

Co2 Electrolysis

In situ and ex situ Raman analyses of porous Ni/CGO electrodes reveal differences in the amount, location and type of carbon formed during CO/CO2 electrolysis. The majority of the carbon forms in the region of the anode, which lies in the range of ca. 4 micrometers from the electrode–electrolyte interface.

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Carbon deposition mechanism and structural changes for zeolite-templated carbons

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2021.111311 ◽

2021 ◽

pp. 111311

Author(s):

Ying Liu ◽

Jiaxin Wang ◽

Mohamed A. Serageldin ◽

Tao Wang ◽

Wei-Ping Pan

Keyword(s):

Structural Changes ◽

Carbon Deposition ◽

Deposition Mechanism

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Carbon deposition mechanism of molten salt cleaning and optimization of multicomponent molten salt formula for remanufacturing

Science Progress ◽

10.1177/00368504211031078 ◽

2021 ◽

Vol 104 (3) ◽

pp. 003685042110310

Author(s):

Shuo Zhang ◽

Shanguo Zhang ◽

Jianyong Li ◽

Jianfeng Li ◽

Xin Zhou ◽

...

Keyword(s):

Molten Salt ◽

Adsorption Mechanism ◽

Carbon Deposition ◽

Salt Bath ◽

Storage Medium ◽

Optimal Process ◽

Deposition Mechanism ◽

Low Viscosity ◽

Key Factor ◽

New Formula

In remanufacturing engineering, cleaning is the key factor for subsequent blank inspection and parts repair. Molten salt has the characteristics of low viscosity, good fluidity, and strong chemical stability. Salt bath cleaning can be comprehensively applied to remove various organic pollutants. Molten salt has the function of self-cleaning. The dirt in the cleaning pool can be decomposed and reused. Moreover, the waste molten salt is massive, and the waste residue is easy to treat. The formation and adsorption mechanism of carbon deposition was explored, and the formation mechanism of carbon deposition was verified by experiments. Then, the existing formula was improved by mixing experiment and compared with the current cleaning method; the cleaning effect was excellent. A new molten salt formula is proposed on the basis of the research on solar thermal storage medium. The composition percentage and the optimal process parameters of the new molten salt formula were determined on the basis of the experimental design of mixture. The cleaning effect of the new formula is good.

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Effects of carbon deposition and de-coking treatments on the activation of CH4 and CO2 in CO2 reforming of CH4 over Ni/yttria-doped ceria catalysts

Applied Catalysis A General ◽

10.1016/j.apcata.2004.05.053 ◽

2004 ◽

Vol 272 (1-2) ◽

pp. 289-298 ◽

Cited By ~ 40

Author(s):

Jenshi B Wang ◽

Yen-Shiun Wu ◽

Ta-Jen Huang

Keyword(s):

Carbon Deposition ◽

Doped Ceria ◽

Co2 Reforming ◽

Co2 Reforming Of Ch4 ◽

Ceria Catalysts ◽

Yttria Doped Ceria

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Chemical Vapor Deposition (CVD) of ZrC Coatings from ZrCl4-C3H6-H2

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.189-193.648 ◽

2011 ◽

Vol 189-193 ◽

pp. 648-652 ◽

Cited By ~ 3

Author(s):

Qiao Mu Liu ◽

Li Tong Zhang ◽

Zhi Xin Meng ◽

Lai Fei Cheng

Keyword(s):

Chemical Vapor Deposition ◽

Carbon Content ◽

Flow Rate ◽

Vapor Deposition ◽

Deposition Temperature ◽

Carbon Deposition ◽

Rough Surfaces ◽

Chemical Vapor ◽

Deposition Mechanism ◽

Spherical Structure

ZrC coatings were prepared by CVD using ZrCl4, C3H6, and H2as the precursors. The mechanisms responsible for the effects of deposition temperature, H2flow rate and inlet C/Zr ratio on the ZrC coatings were studied based on the deposition mechanism of ZrC. The results indicate that the ZrC morphologies change from a loose spherical structure to a cauliflower structure, then to a glassy structure as the deposition temperature increases from 1050°C to 1150°C, then to 1250°C. The carbon content in the ZrC coatings increases with increasing the deposition temperature. Higher inlet C/Zr ratio can lead to rough surfaces and higher carbon content. Reasonable H2concentration can inhibit carbon deposition, and lead to a cauliflower structure.

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