READ ME file For " Thermal Performance and Physicochemical Stability of Silver Nanoprism-based Nanofluids for Direct Solar Absorption"

Dataset DOI: https://doi.org/10.5258/SOTON/D1243

ReadMe Author: Harriet Kimpton, University of Southampton
ORCID ID: https:orcid.org/0000-0002-3219-217X
README file for data associated with publication:

Title of Publication: 
Thermal Performance and Physicochemical Stability of Silver Nanoprism-based Nanofluids for Direct Solar Absorption

Authors:
Harriet Kimpton, Andrea Cristaldi, Eugen Stulz, Xunli Zhang

Journal: Solar Energy

Paper DOI:

Place of Research:
University of Southampton, UK, Facility of Engineering and Physical Sciences

Publication Journal:
Solar Energy

Abreviations:
Defined in paper or in data file

Date research undertaken:
April / May / June 2018


Contents:

Figure 1: Publisher file and png - Schematic of solar simulator testing setup - No data with this figure
Figure 2: Publisher file and png - Detail of (a) sample holder and (b) ZEN0040 cuvette. All dimensions in mm

Figure 3: publisher file and png
Data for figure 3 - in excel file 
File name: UV using optical density all graphs
Figure 3 (a) UV-vis results for P-A (10 mm quartz cuvette), and (b) OD (absorbance normalized to procedure P-A) results for P-A and P-B. 


File name: UV using optical density all graphs
Contains: UV-visible data measured with a Varian Cary 300 Bio spectrophotometer
over a wavelength of 200 to 900 nm with either a 10 mm (quartz cuvette) or 4 mm (ZEN0040 micro cuvette) path length
ZEN0040 micro cuvette obtained from Malvern Panalytical.
Note that standard path length of ZEN0040 is 10 mm. This data given here was obtained by rotation of the cuvette through 90o
giving a path length of approximately 4 mm.

Figure 4: publisher file and png
TEM images for P-B1 (a), P-B2 (b) and P-B3 (c) AgNPrs. All scale bars = 100 nm.

Figure 5: publisher file and png

Modified coating procedure for AgNPrs. - no data associated with this figure

Figure 6: publisher file and png
Data for figure 6 - in excel file 
File name: UV using optical density all graphs
Figure 6 
SiO2@AgNPr (P-C) and SiO2 (P-D) nanofluids prior to solar testing (original values of maximum absorption and cuvette details given in SI Table S1)

Figure 7: publisher file and png

Figure 7 TEM images for P-C1 (a), P-C2 (b) and P-C3 (b) SiO2@AgNPr, before solar testing. All scale bars = 100 nm. The yellow line on (a) shows how the measurement of the SiO2@AgNPr particles was undertaken.

Figure 8: publisher file and png

Figure 8. Mean ?T as a function of SSL exposure time. W = water, P-D = SiO2, P-C = SiO2@AgNPr, P-B = AgNPr. Position in solar simulator = Back (B), middle (M) or front (F).

File name: Figure 8 SSL data
Contains: Temperature measurements with time while nanofluids exposed to simulated sunlight (SSL)
Also included are delta T, and mean delta T results. Temperature measurements obtained
using RS PRO type K thermocouples of 0.6 mm diameter (temperature range -50 - +250 oC), conforming to IEC 60584 standard
Thermocouples connected to a National Instruments NI9211 thermocouple data logger utilising
Labview software

Table 1:
Table 1 SSL results for samples in the middle (M) position

File name: Table 1 data
Contains: Subsequent calculations using temperature measurements to determine significance.
Original calculations utilised Minitab software

Data used from Figure 8 SSL data

Figure 9: publisher file and png
Figure 9 Change in WP with SSL exposure time for AgNPr (P-B) and SiO2@AgNPr (P-C) nanofluids.
File name: Figure 9 data
Contains: UV-visible data measured with a Varian Cary 300 Bio spectrophotometer
over a wavelength of 200 to 900 nm with a 4 mm (ZEN0040 micro cuvette) path length
ZEN0040 micro cuvette obtained from Malvern Panalytical.
Note that standard path length of ZEN0040 is 10 mm. This data given here was obtained by rotation of the cuvette through 90o
giving a path length of approximately 4 mm.
Note also that measurements were made with thermocouple and sealing in place and hence height of absorption maxima /
path length inconsistent. Data was therefore normalised. This allowed for the exact position of the absorption maxima
to be found.

Figure 10: publisher file and png
Figure 10 UV-vis spectra after exposure to SSL (Average OD results shown)

Data for figure 10 - in excel file 
File name: UV using optical density all graphs

Figure 11: publisher file and png

Figure 11. UV-vis spectra of SiO2@AgNPr (P-C) initially and after storage in the dark for 3 weeks.

Data for figure 11 - in excel file 
File name: UV using optical density all graphs


Figure 12: publisher and png file
Figure 12 TEM pictures of AgNPr (a: P-B1, b: P-B2, c: P-B3) and SiO2@AgNPr nanofluids (d: P-C1, e: P-C2, f: P-C3) after SSL exposure (P-B = 12 hours, P-C = 6 hours). All scale bars = 100 nm.

Figure 13: publisher and png file
Figure 13 Change in UV-vis spectra following exposure to NSL for 2 weeks for P-B and P-C (average OD shown)

Data for figure 13 - in excel file 
File name: UV using optical density all graphs

Supplimentary information

Tables S1 - S7 - data given in excel file
File name: measurement uncertainty

Tables S8, S9 and S10 - data in excel file
File name: UV using optical density all graphs

Size analysis

Tables S11 and S12 - data given in excel file
File name: TEM measurements

Figure S2 - data in excel file
File name: copy of spectra summary

Table S13 - data in excel file
File name: Figure 8 SSL data

Table S14 - data in excel file
File name: TEM measurements

License: CC BY-NC-ND

Date this file created: February 2020