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Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification. / Van Dijck, Jeroen G.; Mampuys, Pieter; Ching, H. Y.Vincent; Krishnan, Dileep; Baert, Kitty; Hauffman, Tom; Verbeeck, Johan; Van Doorslaer, Sabine; Maes, Bert U.W.; Dorbec, Matthieu; Buekenhoudt, Anita; Meynen, Vera.

In: Applied Surface Science, Vol. 527, 146851, 15.10.2020.

Research output: Contribution to journalArticle

Harvard

Van Dijck, JG, Mampuys, P, Ching, HYV, Krishnan, D, Baert, K, Hauffman, T, Verbeeck, J, Van Doorslaer, S, Maes, BUW, Dorbec, M, Buekenhoudt, A & Meynen, V 2020, 'Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification', Applied Surface Science, vol. 527, 146851. https://doi.org/10.1016/j.apsusc.2020.146851

APA

Van Dijck, J. G., Mampuys, P., Ching, H. Y. V., Krishnan, D., Baert, K., Hauffman, T., ... Meynen, V. (2020). Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification. Applied Surface Science, 527, [146851]. https://doi.org/10.1016/j.apsusc.2020.146851

Vancouver

Author

Van Dijck, Jeroen G. ; Mampuys, Pieter ; Ching, H. Y.Vincent ; Krishnan, Dileep ; Baert, Kitty ; Hauffman, Tom ; Verbeeck, Johan ; Van Doorslaer, Sabine ; Maes, Bert U.W. ; Dorbec, Matthieu ; Buekenhoudt, Anita ; Meynen, Vera. / Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification. In: Applied Surface Science. 2020 ; Vol. 527.

BibTeX

@article{78a0549be3964bac8958a7dbe5bd53cb,
title = "Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification",
abstract = "While the impact of reaction conditions on surface modification with Grignard reactants has been studied for silica supports, such information is absent for metal oxides like titania. Differences between modified titania and silica are observed, making it paramount to explore the reaction mechanism. A detailed study on the impact of the reaction conditions is reported, with a focus on the chain length of the alkyl Grignard reactant, its concentration, the reaction time and temperature, and the type of titania support. While the increase in the chain length reduces the amount of organic groups on the surface, the concentration, time and temperature show little/no influence on the modification degree. However, the type of titania support used and the percentage of amorphous phase present has a significant impact on the amount of grafted groups. Even though the temperature and concentration show no clear impact on the modification degree, they can cause changes in the surface hydroxyl population, which are thus not linked to the modification degree. Furthermore, the titania support is reduced during functionalization. This reduction dependents on the reaction temperature, the titania support and the chain length of the Grignard reactant. Similarly, this reduction is not linked to the modification degree.",
keywords = "Grignard reactants, Surface modification, Synthesis – properties correlation, Titanium dioxide",
author = "{Van Dijck}, {Jeroen G.} and Pieter Mampuys and Ching, {H. Y.Vincent} and Dileep Krishnan and Kitty Baert and Tom Hauffman and Johan Verbeeck and {Van Doorslaer}, Sabine and Maes, {Bert U.W.} and Matthieu Dorbec and Anita Buekenhoudt and Vera Meynen",
year = "2020",
month = "10",
day = "15",
doi = "10.1016/j.apsusc.2020.146851",
language = "English",
volume = "527",
journal = "Applied Surface Science",
issn = "0169-4332",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Synthesis – properties correlation and the unexpected role of the titania support on the Grignard surface modification

AU - Van Dijck, Jeroen G.

AU - Mampuys, Pieter

AU - Ching, H. Y.Vincent

AU - Krishnan, Dileep

AU - Baert, Kitty

AU - Hauffman, Tom

AU - Verbeeck, Johan

AU - Van Doorslaer, Sabine

AU - Maes, Bert U.W.

AU - Dorbec, Matthieu

AU - Buekenhoudt, Anita

AU - Meynen, Vera

PY - 2020/10/15

Y1 - 2020/10/15

N2 - While the impact of reaction conditions on surface modification with Grignard reactants has been studied for silica supports, such information is absent for metal oxides like titania. Differences between modified titania and silica are observed, making it paramount to explore the reaction mechanism. A detailed study on the impact of the reaction conditions is reported, with a focus on the chain length of the alkyl Grignard reactant, its concentration, the reaction time and temperature, and the type of titania support. While the increase in the chain length reduces the amount of organic groups on the surface, the concentration, time and temperature show little/no influence on the modification degree. However, the type of titania support used and the percentage of amorphous phase present has a significant impact on the amount of grafted groups. Even though the temperature and concentration show no clear impact on the modification degree, they can cause changes in the surface hydroxyl population, which are thus not linked to the modification degree. Furthermore, the titania support is reduced during functionalization. This reduction dependents on the reaction temperature, the titania support and the chain length of the Grignard reactant. Similarly, this reduction is not linked to the modification degree.

AB - While the impact of reaction conditions on surface modification with Grignard reactants has been studied for silica supports, such information is absent for metal oxides like titania. Differences between modified titania and silica are observed, making it paramount to explore the reaction mechanism. A detailed study on the impact of the reaction conditions is reported, with a focus on the chain length of the alkyl Grignard reactant, its concentration, the reaction time and temperature, and the type of titania support. While the increase in the chain length reduces the amount of organic groups on the surface, the concentration, time and temperature show little/no influence on the modification degree. However, the type of titania support used and the percentage of amorphous phase present has a significant impact on the amount of grafted groups. Even though the temperature and concentration show no clear impact on the modification degree, they can cause changes in the surface hydroxyl population, which are thus not linked to the modification degree. Furthermore, the titania support is reduced during functionalization. This reduction dependents on the reaction temperature, the titania support and the chain length of the Grignard reactant. Similarly, this reduction is not linked to the modification degree.

KW - Grignard reactants

KW - Surface modification

KW - Synthesis – properties correlation

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=85086065284&partnerID=8YFLogxK

U2 - 10.1016/j.apsusc.2020.146851

DO - 10.1016/j.apsusc.2020.146851

M3 - Article

AN - SCOPUS:85086065284

VL - 527

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

M1 - 146851

ER -

ID: 53376064