READ ME File - Dataset for: Effects of surfactant head group modification on vertically oriented mesoporous silica produced by the electrochemically assisted surfactant assembly method

Dataset DOI: 10.5258/SOTON/D2638

ReadMe Author: Jonathan Allen, University of Southampton

This dataset supports the publication:
AUTHORS: Nabil A. N. Mohamed, Yisong Han, Sarah Harcourt-Vernon, Andrew L. Hector, Anthony R. Houghton, Gillian Reid, Daryl R. Williams and Wenjian Zhang
TITLE: Effects of surfactant head group modification on vertically oriented mesoporous silica produced by the electrochemically assisted surfactant assembly method
JOURNAL: Nanoscale Advances
PAPER DOI: 10.1039/D3NA00031A

This dataset contains: The original data associated with each figure in the manuscript, in text files with the column header denoting the parameter in each case.


The figures are as follows:

Figure 1: 1D in-plane GISAXS patterns of EASA films produced with C18TAB, C18DMEAB, C18DEMAB and C18TEAB at a potential of -1.25 V (vs. Ag/Ag+) for 20 s on ITO electrodes (inset: 2D GISAXS images of EASA films templated by (i) C18TAB, (ii) C18DMEAB, (iii) C18DEMAB and (iv) C18TEAB.

Figure 4: Cyclic voltammograms (a) (20 mV s-1 sweep rate) of 0.5 mmol dm-3 [Fe(CN)6]3-/4- in 0.1 mol dm-3 NaNO3(aq) on bare ITO electrode (inset). The mesoporous silica films using C18TAB (black line), C18DMEAB (red line), C18DEMAB (blue line) and C18TEAB (green line) as the surfactants were deposited at -1.25 V (vs. Ag/Ag+) for 20 s on ITO electrodes. Nyquist plots (Fig. 4b) of bare ITO (inset) and mesoporous silica films on ITO electrodes with C18TAB and C18DMEAB as the surfactant templates, whereas Nyquist plots (Fig. 4c) of mesoporous silica films on ITO electrodes with C18DEMAB and C18TEAB as the surfactant templates. All experiments were carried out after surfactant removal.

Figure 5: The adsorption/desorption isotherms of EASA films produced using (a) C18TAB (Mohamed et al.19), (b) C18DMEAB, (c) C18DEMAB and (d) C18TEAB surfactants using toluene as the adsorptive. The pore size distribution curves are shown in the insets.

Figure S1. Positive ion electrospray mass spectrum of C18DMEAB in methanol at 25 ℃.

Figure S2. Positive ion electrospray mass spectrum of C18DEMAB in methanol at 25 ℃.

Figure S3. Positive ion electrospray mass spectrum of C18TEAB in methanol at 25 ℃.

Figure S4. 1H NMR spectrum of C18DMEAB in CDCl3 at 25 ℃.

Figure S5. 13C{1H} NMR spectrum of C18DMEAB in CDCl3 (77.16 ppm) at 25 ℃.

Figure S6. 1H NMR spectrum of C18DEMAB in D-methanol at 25 ℃.

Figure S7. 13C{1H} NMR spectrum of C18DEMAB in D-methanol at 25 ℃.

Figure S8. 1H NMR spectrum of C18TEAB in CDCl3 at 25 ℃.

Figure S9. 13C{1H} NMR of C18TEAB in CDCl3 (77.16 ppm) at 25 ℃.


Date of data collection: 2019-2022

License: CC-BY

Information about geographic location of data collection: University of Southampton, UK and Imperial College London, UK

Date that the file was created: May, 2023