Spectroscopic techniques using ionic liquids

Bhawna, Bhawna; Dhingra, Divya; Pandey, Siddharth

doi:10.1016/b978-0-12-823334-4.00005-9

Cited by 20 publications

(40 citation statements)

References 123 publications

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“…ChCl-based DESs are the most extensively studied among Type III DESs. 13 Dhingra et al 65 reported that adding LiCl to Type III DESs can affect their temperature, viscosity, and conductivity. Millia et al 54 investigated the electrochemical properties of an ChCl/EG (Ethaline) eutectic mixture with a lithium salt (LiPF6) as a liquid electrolyte.…”

Section: Battery and Fuel Cell Performancementioning

confidence: 99%

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Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Hariyanto,

Ng,

Siew

et al. 2023

Energy Fuels

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The rapid shift toward electric vehicles (EVs) is imperative for achieving the United Nations’ net-zero emissions target by 2050. This paper explores deep eutectic solvents (DESs) as sustainable alternatives to traditional solvents in batteries and fuel cells. DESs, sourced from renewables, offer numerous advantages, including low toxicity, affordability, and biodegradability, aligning with sustainable energy goals. The review underscores the importance of addressing challenges such as high viscosity, limited solubility, and compatibility issues for enhanced performance. This study primarily delves into how DESs can boost electrolyte performance through biosubstitution and ion recovery, extending their potential to metal recovery for resource efficiency. Additionally, DESs’ flame-retardant, antifreeze properties, and robust thermal and electrochemical stability enhance battery safety, positioning them as a promising avenue for future research. Given the ambitious EV transition targets set globally, this Review provides an overview of DES advancements and their integration with other materials and technologies. Despite potential drawbacks in specific energy and energy density, sodium-based batteries are emerging as a viable alternative to their lithium counterparts. The future of EVs and DESs in battery technology hinges on their economic viability, infrastructure development, and life cycle emissions. In conclusion, this study underscores the pivotal role of DESs in driving sustainable energy solutions during the EV transition.

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Section: Battery and Fuel Cell Performancementioning

confidence: 99%

“…Although reduced viscosity is desirable for battery performance, Dhingra and Pandey 66 found that LiCl addition increases viscosity in Type III DESs. However, some HBDs can help to reduce the viscosity of DESs even when LiCl is present at high concentrations.…”

Section: Battery and Fuel Cell Performancementioning

confidence: 99%

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Hariyanto,

Ng,

Siew

et al. 2023

Energy Fuels

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“…Two high vapor pressure mercury lamps (125 W, Osram, India) as a light source were used in an in-house designed solar stimulator to irradiate the system with UV and visible radiation. 32 A gas chromatograph (GC-2014) from Shimadzu Corporation coupled with a TCD detector along with Ar as a carrier were used to measure the yield of generated H 2 gas.…”

Section: Materials Cuclmentioning

confidence: 99%

“…1 Being omnipresent, it adapts to a low-carbon future and reduces reliance on fossil fuels in everyday routines. 2,3 It can take on diverse roles, such as energy storage and transport (analogous to electricity), seen in the case of hydrogen fuel cells and also for energy production in the case of hydrogen-driven vehicles. 4 Hydrogen gas generation via photocatalytic water splitting necessitates the photogeneration of photons.…”

Section: Introductionmentioning

confidence: 99%

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New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

et al. 2023

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Cu/Cu 2 O/CuO nanocomposites were synthesized using the simple wet chemical approach for the production of dihydrogen as a potential fuel source and for the detoxification of dyes. The formation of Cu/Cu 2 O/ CuO nanocomposites is confirmed by powder X-ray diffraction, whereas the W-H plot revealed the average particle size of nanocomposite approximately 17 nm, which is in good agreement with the Scherrer method and transmission electron microscopy analysis. The uniform distribution of Cu and O elements was supported by the elemental mapping of the nanocomposite. Band gaps of CuO and Cu 2 O were found to be 1.71 and 1.92 eV, respectively, using diffuse reflectance spectroscopy spectra and Kubelka−Munk functions. The oxygen vacancies in the nanocomposite are confirmed by various analytical spectroscopic techniques, such as electron paramagnetic resonance, Raman, photoluminescence, and X-ray photoelectron spectroscopy (XPS) spectra. The significant boost in the performance of the fabricated nanocomposite was observed and is attributed to the formation of a heterojunction and existence of oxygen vacancy. The nanocomposite demonstrated proficiency in the photocatalytic splitting of water for the production of hydrogen. The maximum hydrogen generation yield (68 μmol g −1 ) was observed for Cu/Cu 2 O/CuO nanocomposites along with NiO (co-catalyst) and methanol as a hole scavenger as well as an electron donor. Moreover, the degradation of congo red (CR) and malachite green (MG) dyes was also investigated and the efficiency of the nanocomposite was found to be 80 and 60%, respectively, after 120 min of light irradiation. The stability of nanocomposites after photocatalysis was investigated by the XPS spectrum of the nanocomposite. Explicitly, the area and broadening of the O 1s XPS spectrum demonstrated higher degradation of CR dye as compared to MG dye.

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Enhanced CO₂ Capture-Desorption by Surface-Active Amine

Adekomi,

Carrasco-Jaim,

Weerasooriya

et al. 2024

Energy Fuels

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Developing an efficient solvent for carbon dioxide (CO 2 ) capture stands as a pivotal step in mitigating greenhouse gas emissions and long-term climate change. In this study, we evaluated the CO 2 capture-desorption performance of 3-(dimethylamino)propylamine-6-propylene oxide (DMAPA-6PO), as a surface-active tertiary amine for cyclic CO 2 capture as bicarbonate. Results delineate a distinct CO 2 capture pathway utilizing DMAPA-6PO, which not only promotes bicarbonate generation, but also enhances CO 2 solubilization. This enhancement is attributed to the surface activity, based on 13 C nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy (FTIR) analyses. Furthermore, DMAPA-6PO demonstrated a stable cyclic capacity, maintaining the CO 2 capture performance and bicarbonate concentration profiles over 900 min of testing cycles. We also examined the CO 2 capture capacity regeneration efficiency and desorption heat requirement in comparison with those of common commercial solvents. DMAPA-6PO showed a capture capacity regeneration efficiency that was 30% higher than that of monoethanolamine (MEA). Additionally, it exhibited a superior desorption rate, resulting in a substantial reduction of 88% in the heat duty requirements compared to MEA. The results demonstrate that DMAPA-6PO is a promising surface-active tertiary amine for capturing CO 2 , offering significant advantages in both the CO 2 -capture-as-bicarbonate pathway and traditional amine-based thermal desorption process.

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Spectroscopic techniques using ionic liquids

Cited by 20 publications

References 123 publications

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

Enhanced CO₂ Capture-Desorption by Surface-Active Amine

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Spectroscopic techniques using ionic liquids

Cited by 20 publications

References 123 publications

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

Deep Eutectic Solvents for Batteries and Fuel Cells: Biosubstitution, Advantages, Challenges, and Future Directions

New Insights into Cu/Cu2O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

Enhanced CO2 Capture-Desorption by Surface-Active Amine

Contact Info

Product

Resources

About

New Insights into Cu/Cu₂O/CuO Nanocomposite Heterojunction Facilitating Photocatalytic Generation of Green Fuel and Detoxification of Organic Pollutants

Enhanced CO₂ Capture-Desorption by Surface-Active Amine