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@article{ART002745869},
author={ Ki-Woong Chae and Ta-Ryeong Park and Jeong Seog Kim },
title={ Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods },
journal={ Journal of Ceramic Processing Research },
issn={1229-9162},
year={2021},
number={4},
pages={461 - 469},
doi={10.36410/jcpr.2021.22.4.461},
url={http://dx.doi.org/10.36410/jcpr.2021.22.4.461}

TY - JOUR
AU - Ki-Woong Chae AU - Ta-Ryeong Park
AU - Jeong Seog Kim
TI - Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods
T2 - Journal of Ceramic Processing Research
PY - 2021
VL - 22
IS - 4
PB - 한양대학교 청정에너지연구소
SP - 461 - 469
SN - 1229-9162
AB - The catalytic activity of ceria originates from oxygen vacancies. Ce2O3 is the most oxygen-deficient end-member of nonstoichiometricceria, CeO2-x. A new method of synthesizing air-stable Ce2O3 from the micron- and nano-sized CeO2 powderwas developed. The key part of this synthetic process is to reduce the sample in a low-pressure H2 gas (10 Torr) under vacuumat 1300°C. The percentage of the Ce2O3 phase in the reduced sample ranges from 55% ~ 96 wt.% according to the powdersize and reduction time. Hydrogen incorporation in reduced ceria was confirmed by secondary ion mass spectrometry depthprofile analysis and vibrational spectroscopic techniques, such as Raman and Fourier transform infrared spectroscopy. Thesurface region (zero depth) showed the highest H concentration that decreased with increasing profiling depth. The locationsof hydrogen incorporated in the Ce2O3 phase in the reduced sample were revealed by calculating the nuclear densitydistribution. The maximum entropy method-based pattern fitting and Dysnomia program were combined to calculate thenuclear density map using the neutron diffraction data.
KW - ceria, hydrogen insertion, structural analysis, nuclear density distribution, spectroscopy
DO - 10.36410/jcpr.2021.22.4.461
UR - http://dx.doi.org/10.36410/jcpr.2021.22.4.461
ER -

Ki-Woong Chae , Ta-Ryeong Park and Jeong Seog Kim (2021). Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods. Journal of Ceramic Processing Research, 22(4), 461 - 469.

Ki-Woong Chae , Ta-Ryeong Park and Jeong Seog Kim . 2021, “Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods”, vol.22, no.4, pp. 461 - 469. Available from: doi:10.36410/jcpr.2021.22.4.461

Ki-Woong Chae 외. “Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods“ Journal of Ceramic Processing Research 22.4 pp. 461 - 469. (2021): 461.

Ki-Woong Chae , Ta-Ryeong Park , Jeong Seog Kim . Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods Journal of Ceramic Processing Research [Internet]. 2021; 22(4), : 461 - 469. Available from: doi:10.36410/jcpr.2021.22.4.461

Ki-Woong Chae , Ta-Ryeong Park and Jeong Seog Kim . “Synthesis of Ce2O3 and characterization of hydrogen insertion using neutron diffraction and spectroscopic methods“ Journal of Ceramic Processing Research 22, no.4, (2021): 461 - 469. doi: :10.36410/jcpr.2021.22.4.461