Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

L. F. Chen; J. A. Wang; M. A. Valenzuela; X. Bokhimi; D. R. Acosta; O. Novaro

doi:10.1016/j.jallcom.2005.08.070

Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

L. F. Chen, J. A. Wang, M. A. Valenzuela, X. Bokhimi, D. R. Acosta, O. Novaro

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The average crystallite size, phase composition, cationic defect concentration and structural microstrain in the monoclinic phase of zirconia annealed at 800 °C were quantitatively determined by the Rietveld refinement. An unusual behaviour of hydrogen reversibly storing into/releasing from the PdO/ZrO₂ nanophases was observed, which related to formation/decomposition of a hydride phase β-PdH_0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support.

Original language	English
Pages (from-to)	220-223
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	417
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2005.08.070
State	Published - 29 Jun 2006
Externally published	Yes

Keywords

Hydrogen spillover
Structural defects
Surfactant-templated synthesis
Zirconia

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10.1016/j.jallcom.2005.08.070

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title = "Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route",

abstract = "Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The average crystallite size, phase composition, cationic defect concentration and structural microstrain in the monoclinic phase of zirconia annealed at 800 °C were quantitatively determined by the Rietveld refinement. An unusual behaviour of hydrogen reversibly storing into/releasing from the PdO/ZrO2 nanophases was observed, which related to formation/decomposition of a hydride phase β-PdH0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support.",

keywords = "Hydrogen spillover, Structural defects, Surfactant-templated synthesis, Zirconia",

author = "Chen, {L. F.} and Wang, {J. A.} and Valenzuela, {M. A.} and X. Bokhimi and Acosta, {D. R.} and O. Novaro",

note = "Funding Information: This work is finally supported by projects of CONACyT of Mexico (Grant No. 31282-U), FIES-IPN-IMP (Grant No. 98-29-III) and CGPI-IPN (Grant No. 20021187). The authors thank Miss Y. Mart{\'i}nez for her technical assistance. L.F. Chen is grateful to the doctorate fellowship sponsored by the CONACyT, Mexico.",

year = "2006",

month = jun,

day = "29",

doi = "10.1016/j.jallcom.2005.08.070",

language = "Ingl{\'e}s",

volume = "417",

pages = "220--223",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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TY - JOUR

T1 - Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

AU - Chen, L. F.

AU - Wang, J. A.

AU - Valenzuela, M. A.

AU - Bokhimi, X.

AU - Acosta, D. R.

AU - Novaro, O.

N1 - Funding Information: This work is finally supported by projects of CONACyT of Mexico (Grant No. 31282-U), FIES-IPN-IMP (Grant No. 98-29-III) and CGPI-IPN (Grant No. 20021187). The authors thank Miss Y. Martínez for her technical assistance. L.F. Chen is grateful to the doctorate fellowship sponsored by the CONACyT, Mexico.

PY - 2006/6/29

Y1 - 2006/6/29

N2 - Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The average crystallite size, phase composition, cationic defect concentration and structural microstrain in the monoclinic phase of zirconia annealed at 800 °C were quantitatively determined by the Rietveld refinement. An unusual behaviour of hydrogen reversibly storing into/releasing from the PdO/ZrO2 nanophases was observed, which related to formation/decomposition of a hydride phase β-PdH0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support.

AB - Nanosized zirconia with structural defects was synthesized by using surfactant-templated method. The average crystallite size, phase composition, cationic defect concentration and structural microstrain in the monoclinic phase of zirconia annealed at 800 °C were quantitatively determined by the Rietveld refinement. An unusual behaviour of hydrogen reversibly storing into/releasing from the PdO/ZrO2 nanophases was observed, which related to formation/decomposition of a hydride phase β-PdH0.76 and to hydrogen storage in the cationic defects of zirconia nanophases by means of hydrogen spillover from Pd metals to zirconia support.

KW - Hydrogen spillover

KW - Structural defects

KW - Surfactant-templated synthesis

KW - Zirconia

UR - http://www.scopus.com/inward/record.url?scp=33747073589&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2005.08.070

DO - 10.1016/j.jallcom.2005.08.070

M3 - Artículo

SN - 0925-8388

VL - 417

SP - 220

EP - 223

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Hydrogen spillover and structural defects in a PdO/zirconia nanophase synthesized through a surfactant-templated route

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Keywords

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