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Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications

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Electrostatic Force Microscopic Characterization of Early Stage Carbon Deposition on Nickel Anodes in Solid Oxide Fuel Cells

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Title
Electrostatic Force Microscopic Characterization of Early Stage Carbon Deposition on Nickel Anodes in Solid Oxide Fuel Cells
Author
Park, HyungminLi, XiaxiLai, Samson YChen, DongchangBlinn, Kevin SLiu, MingfeiChoi, SinhoPark, SoojinLiu, MeilinBottomley, Lawrence A
Issue Date
2015-09
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.15, no.9, pp.6047 - 6050
Abstract
Carbon deposition on nickel anodes degrades the performance of solid oxide fuel cells that utilize hydrocarbon fuels. Nickel anodes with BaO nanoclusters deposited on the surface exhibit improved performance by delaying carbon deposition (i.e., coking). The goal of this research was to visualize early stage deposition of carbon on nickel surface and to identify the role BaO nanoclusters play in coking resistance. Electrostatic force microscopy was employed to spatially map carbon deposition on nickel foils patterned with BaO nanoclusters. Image analysis reveals that upon propane exposure initial carbon deposition occurs on the Ni surface at a distance from the BaO features. With continued exposure, carbon deposits penetrate into the BaO-modified regions. After extended exposure, carbon accumulates on and covers BaO. The morphology and spatial distribution of deposited carbon was found to be sensitive to experimental conditions.
URI
https://scholarworks.unist.ac.kr/handle/201301/17205
URL
http://pubs.acs.org/doi/10.1021/acs.nanolett.5b02237
DOI
10.1021/acs.nanolett.5b02237
ISSN
1530-6984
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