The lewis acidity of sulfate-doped ZrO2: FTIR and microcalorimetric study of CO uptake at ∼ 300 K on low S-loaded specimens

C. Morterra; V. Bolis; G. Cerrato; G. Magnacca

doi:10.1016/0039-6028(94)91565-2

The lewis acidity of sulfate-doped ZrO₂: FTIR and microcalorimetric study of CO uptake at ∼ 300 K on low S-loaded specimens

C. Morterra
, V. Bolis
, G. Cerrato
, G. Magnacca

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

Abstract

When loading sulfates on a microcrystalline ZrO₂, using H₂SO₄, the first sulfate groups form on crystal defects, then on regular crystal planes, and eventually complex sulfates (e.g., pyrosulfates) are formed. CO uptake at ∼ 300 K onto SO₄/ZrO₂ decreases fast with increasing sulfate loading, while the Lewis acidity of the residual sites is variably enhanced by the presence of the various types of sulfates, as shown by the spectral features of the σ-coordinated CO complexes and by the relevant adsorption heats.

Original language	English
Pages (from-to)	1206-1213
Number of pages	8
Journal	Surface Science
Volume	307-309
Issue number	PART B
DOIs	https://doi.org/10.1016/0039-6028(94)91565-2
Publication status	Published - 20 Apr 1994
Externally published	Yes

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title = "The lewis acidity of sulfate-doped ZrO2: FTIR and microcalorimetric study of CO uptake at ∼ 300 K on low S-loaded specimens",

abstract = "When loading sulfates on a microcrystalline ZrO2, using H2SO4, the first sulfate groups form on crystal defects, then on regular crystal planes, and eventually complex sulfates (e.g., pyrosulfates) are formed. CO uptake at ∼ 300 K onto SO4/ZrO2 decreases fast with increasing sulfate loading, while the Lewis acidity of the residual sites is variably enhanced by the presence of the various types of sulfates, as shown by the spectral features of the σ-coordinated CO complexes and by the relevant adsorption heats.",

author = "C. Morterra and V. Bolis and G. Cerrato and G. Magnacca",

note = "Funding Information: This research was supported by the CNR, Pro-getto Finalizzato Materiali Speciali.",

year = "1994",

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doi = "10.1016/0039-6028(94)91565-2",

language = "English",

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T1 - The lewis acidity of sulfate-doped ZrO2

T2 - FTIR and microcalorimetric study of CO uptake at ∼ 300 K on low S-loaded specimens

AU - Morterra, C.

AU - Bolis, V.

AU - Cerrato, G.

AU - Magnacca, G.

N1 - Funding Information: This research was supported by the CNR, Pro-getto Finalizzato Materiali Speciali.

PY - 1994/4/20

Y1 - 1994/4/20

N2 - When loading sulfates on a microcrystalline ZrO2, using H2SO4, the first sulfate groups form on crystal defects, then on regular crystal planes, and eventually complex sulfates (e.g., pyrosulfates) are formed. CO uptake at ∼ 300 K onto SO4/ZrO2 decreases fast with increasing sulfate loading, while the Lewis acidity of the residual sites is variably enhanced by the presence of the various types of sulfates, as shown by the spectral features of the σ-coordinated CO complexes and by the relevant adsorption heats.

AB - When loading sulfates on a microcrystalline ZrO2, using H2SO4, the first sulfate groups form on crystal defects, then on regular crystal planes, and eventually complex sulfates (e.g., pyrosulfates) are formed. CO uptake at ∼ 300 K onto SO4/ZrO2 decreases fast with increasing sulfate loading, while the Lewis acidity of the residual sites is variably enhanced by the presence of the various types of sulfates, as shown by the spectral features of the σ-coordinated CO complexes and by the relevant adsorption heats.

UR - https://www.scopus.com/pages/publications/0028409406

U2 - 10.1016/0039-6028(94)91565-2

DO - 10.1016/0039-6028(94)91565-2

M3 - Article

SN - 0039-6028

VL - 307-309

SP - 1206

EP - 1213

JO - Surface Science

JF - Surface Science

IS - PART B

ER -

The lewis acidity of sulfate-doped ZrO₂: FTIR and microcalorimetric study of CO uptake at ∼ 300 K on low S-loaded specimens

Abstract

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