Enhancing the solar energy conversion and harvesting characteristics of multiwalled carbon nanotubes-modified 1-hexyl-3-methyl-imidazolium cation ionic liquids was written by Boldoo, Tsogtbilegt;Lee, Minjung;Cho, Honghyun. And the article was included in International Journal of Energy Research in 2022.COA of Formula: C18H31F6N3O4S2 This article mentions the following:
The concept of solar energy absorption or photothermal energy conversion of nanofluids as a working fluid is a promising idea utilized in various applications. However, the lack of diversity of the base agents restricts the usage of solar thermal conversion systems in extreme conditions such as extreme cold or hot environments. The ionic liquids were used as a base agent to broaden the applicable conditions of the solar thermal conversion system considering the remarkable favorable characteristics of ionic liquids In this study, key factors of solar energy conversion characteristics and performance of the various 1-hexyl-3-methylimidazolium cation-based ionic liquids and MWCNT nanoparticle-enhanced ionic liquids (NEILs) were exptl. investigated. This study dives deep into the optical properties of the ionic liquids compared to the previous studies in the open literature. In the manufacturing process, MWCNT nanoparticles are dispersed in various ionic liquids at 20 kHz and coated with the Gum-Arabic. It was found that 1-hexyl-3-methylimidazolium cation-based pure room temperature ionic liquids were almost transparent in the visible light spectrum with nearly 0% absorbance; however, adding a small amount of addnl. MWCNT nanoparticles sharply increased the absorbance rate up to nearly 100% (Fâ?). Besides, the transmittance of the MWCNT NEILs decreased with the increasing concentration Under the simulated solar light, the final temperature of the samples increased with the increasing concentration of MWCNT NEIL. Moreover, the maximum photothermal energy conversion efficiency (ηPEC) of each MWCNT NEILs was 38.0%, 40.9%, 40.2%, and 39.8% in the case of [HMIM][Tf2N], [HMIM][TfO], [HMIM][Pf6], and [C12MIM][Tf2N], resp., at a concentration and operating time of 1 wt% and 7200 s. In addition, SER value sharply increased with the increasing nanoparticle concentration, and it almost doubled compared to the base agents. Furthermore, the nanoparticle concentration affects the solar energy absorption capability of ionic liquids more than anions in their chem. structure. This study can deliver the necessary data to design a direct absorption solar thermal collector using ionic liquids, which are new green designer working fluids. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5COA of Formula: C18H31F6N3O4S2).
3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.COA of Formula: C18H31F6N3O4S2
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem