Study of the dissolution of the barium sulfate (001) surface with hydrochloric acid by atomic force microscopy

Kang Shi Wang; Roland Resch; Bruce E. Koel; Patrick J. Shuler; Yongchun Tang; Huey jyh Chen; Teh Fu Yen

doi:10.1006/jcis.1999.6473

Study of the dissolution of the barium sulfate (001) surface with hydrochloric acid by atomic force microscopy

Kang Shi Wang, Roland Resch, Bruce E. Koel, Patrick J. Shuler, Yongchun Tang, Huey jyh Chen, Teh Fu Yen

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

15 Scopus citations

Abstract

Noncontact atomic force microscopy (NC-AFM) has been used to investigate the morphological changes of a freshly cleaved (001) surface of barium sulfate (barite) etched with an aqueous solution of 0.1 M HCl at room temperature. Shallow triangular etch pits with a height of 3.6 Å were developed in atomically flat (001) terraces. The etching of the surface was found to proceed in a layer-by-layer dissolution process. Because the crystal structure of barite exhibits a two-fold screw axis parallel to the c axis, 'alternating' etch pits were formed, with any two consecutive etch pits pointing opposite to each other. These etch pits became deeper and more elongated along the b axis with time.

Original language	English (US)
Pages (from-to)	212-215
Number of pages	4
Journal	Journal of Colloid And Interface Science
Volume	219
Issue number	1
DOIs	https://doi.org/10.1006/jcis.1999.6473
State	Published - Nov 1 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films
Biomaterials
Colloid and Surface Chemistry

Keywords

Atomic force microscopy
Barium sulfate
Dissolution
Etch pit
HCl

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10.1006/jcis.1999.6473

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title = "Study of the dissolution of the barium sulfate (001) surface with hydrochloric acid by atomic force microscopy",

abstract = "Noncontact atomic force microscopy (NC-AFM) has been used to investigate the morphological changes of a freshly cleaved (001) surface of barium sulfate (barite) etched with an aqueous solution of 0.1 M HCl at room temperature. Shallow triangular etch pits with a height of 3.6 {\AA} were developed in atomically flat (001) terraces. The etching of the surface was found to proceed in a layer-by-layer dissolution process. Because the crystal structure of barite exhibits a two-fold screw axis parallel to the c axis, 'alternating' etch pits were formed, with any two consecutive etch pits pointing opposite to each other. These etch pits became deeper and more elongated along the b axis with time.",

keywords = "Atomic force microscopy, Barium sulfate, Dissolution, Etch pit, HCl",

author = "Wang, {Kang Shi} and Roland Resch and Koel, {Bruce E.} and Shuler, {Patrick J.} and Yongchun Tang and Chen, {Huey jyh} and Yen, {Teh Fu}",

note = "Funding Information: T. F. Yen gratefully acknowledges financial support of this work by Chevron Petroleum Technology Company (CPTC) and donation of barite crystals from Barrick Meikle Mine. B. E. Koel acknowledges support of the Laboratory for Molecular Robotics by the Z. A. Kaprielian Technology Innovation Fund.",

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doi = "10.1006/jcis.1999.6473",

language = "English (US)",

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journal = "Journal of Colloid And Interface Science",

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T1 - Study of the dissolution of the barium sulfate (001) surface with hydrochloric acid by atomic force microscopy

AU - Wang, Kang Shi

AU - Resch, Roland

AU - Koel, Bruce E.

AU - Shuler, Patrick J.

AU - Tang, Yongchun

AU - Chen, Huey jyh

AU - Yen, Teh Fu

N1 - Funding Information: T. F. Yen gratefully acknowledges financial support of this work by Chevron Petroleum Technology Company (CPTC) and donation of barite crystals from Barrick Meikle Mine. B. E. Koel acknowledges support of the Laboratory for Molecular Robotics by the Z. A. Kaprielian Technology Innovation Fund.

PY - 1999/11/1

Y1 - 1999/11/1

N2 - Noncontact atomic force microscopy (NC-AFM) has been used to investigate the morphological changes of a freshly cleaved (001) surface of barium sulfate (barite) etched with an aqueous solution of 0.1 M HCl at room temperature. Shallow triangular etch pits with a height of 3.6 Å were developed in atomically flat (001) terraces. The etching of the surface was found to proceed in a layer-by-layer dissolution process. Because the crystal structure of barite exhibits a two-fold screw axis parallel to the c axis, 'alternating' etch pits were formed, with any two consecutive etch pits pointing opposite to each other. These etch pits became deeper and more elongated along the b axis with time.

AB - Noncontact atomic force microscopy (NC-AFM) has been used to investigate the morphological changes of a freshly cleaved (001) surface of barium sulfate (barite) etched with an aqueous solution of 0.1 M HCl at room temperature. Shallow triangular etch pits with a height of 3.6 Å were developed in atomically flat (001) terraces. The etching of the surface was found to proceed in a layer-by-layer dissolution process. Because the crystal structure of barite exhibits a two-fold screw axis parallel to the c axis, 'alternating' etch pits were formed, with any two consecutive etch pits pointing opposite to each other. These etch pits became deeper and more elongated along the b axis with time.

KW - Atomic force microscopy

KW - Barium sulfate

KW - Dissolution

KW - Etch pit

KW - HCl

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JF - Journal of Colloid And Interface Science

IS - 1

ER -

Study of the dissolution of the barium sulfate (001) surface with hydrochloric acid by atomic force microscopy

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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