Abstract:
We assessed the morphological changes of dealloyed and thermal annealed monolithic nanoporous gold (NPG) gold particles. We fabricated monolithic NPG nanoparticles in the lab. The process of forming the NPG nanoparticles included dealloying silver in 70% nitric acid. The time dealloying the NPG nanoparticles varied from 30 to 270 seconds. Thermal annealing of previously dealloyed NPG nanoparticles was performed in a programmed tube furnace at 100, 200, 300, 400, and 500 degrees Celsius. This dataset includes data reporting the atomic percentage of silver and gold at different dealloying times of a 300 nm diameter NPG disk made from Ag82.5AU17.5 alloy. The extinction spectra are reported for a 300 nm diameter NPG disk made from either a Ag82.5Au17.5 alloy or a Ag70Au30 alloy and dealloyed for 30, 90, 150, 210, and 270 seconds. The extinction spectra are provided for a 300 nm diameter NPG disk dealloyed for 30 seconds after annealing at 23, 100, 200, 300, 400, and 500 degrees Celsius. Data are also included for the extinction spectra dealloyed at 90 seconds from Ag70Au30 alloy at 23, 100, 200 and 300 degrees Celsius. Benzenethiol was measured on NPG nanoparticles obtained from the Ag82.5Au70 alloy using Surface-enhanced Raman spectroscopy. The Raman spectra data are reported at 5 different alloying times and 6 different annealing temperature listed above. This dataset is associated with the paper: Zeng, J., Zhao, F., Qi, J., Li, Y., Li, C.H., Yao, Y., et al. (2014). Internal and external morphology-dependent plasmonic resonance in monolithic nanoporous gold nanoparticles. RSC Adv., 4(69), 36682–36688. doi: 10.1039/C4RA04922E.
Suggested Citation:
Jainbo Zeng, Fusheng Zhao, Ji Qui, Yifei Li, Chien-Hung Li, Yan Yao, T. Randall Lee, Wei-Chuan Shih. 2017. Dataset for: Internal and external morphology-dependent plasmonic resonance in monolithic nanoporous gold nanoparticles. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7CN728F
Data Parameters and Units:
Excel worksheet Figure 1 corresponds to Figure 2a in the associated paper: dealloying time (seconds), Ag (silver atomic percentage), Au (gold atomic percentage). Excel worksheet Figure 2 corresponds to Figure 2b in the associated paper: wavelength (nm), extinction (a.u.), dealloying time (seconds). Excel worksheet Figure 3 corresponds to Figure 5a in the associated paper: wavelength (nm) extinction (a.u.), annealing temperature (degrees Celsius) Excel worksheet Figure 4 corresponds to Figure 6d in the associated paper: wavelength (nm), extinction (a.u.), dealloying at temperature (degrees Celsius) Excel worksheet Figure 5 corresponds to Figure 7a in the associated paper: Raman Shift (cm^-1), dealloying time (seconds) Excel worksheet Figure 6 corresponds to Figure 7b in the associated paper: Raman Shift (cm^-1), annealing temperature (degrees Celsius) Excel worksheet Figure 7 corresponds to Figures 7c and 7d in the associated paper: Raman intensity (counts per second), dealloying time (seconds), different temperature (degrees Celsius)
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