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1. The future of airborne sulfur-containing particles in the absence of fossil fuel sulfur dioxide emissions

   https://doi.org/10.1073/pnas.1510743112  

   Perraud, Véronique ; Horne, Jeremy R. ; Martinez, Andrew S. ; Kalinowski, Jaroslaw ; Meinardi, Simone ; Dawson, Matthew L. ; Wingen, Lisa M. ; Dabdub, Donald ; Blake, Donald R. ; Gerber, R. Benny ; et al ( November 2015 , Proceedings of the National Academy of Sciences)
2. Mechanism and Kinetics of Na 2 S x (x ≤ 2) Precipitation in Sodium-Sulfur and Sodium/(Oxygen)-Sulfur Batteries

   https://doi.org/10.1149/1945-7111/ad14cb  

   Zhang, Qipeng ; Yang, Tairan ; Li, Zheng ( January 2024 , Journal of The Electrochemical Society)

   Room-temperature sodium-sulfur (RT Na-S) batteries have attracted ever-increasing attention because of their enhanced energy density and low price. Although the performance of RT Na-S batteries is obtained in many other research, the basic mechanism and kinetics have not involved yet, especially in discharge product growth, which affects electrochemical performance. Meanwhile, designed additional redox activities (in the presence of oxygen) could simultaneously suppress sodium polysulfide shuttling and enhance energy density according to our group reported. However, the kinetic study of the intermediate has not been explored. In this work, we discussed the deposition of low-order sodium polysulfide (Na₂S_x, x ≤ 2) in different potentials and types of glyme-solvents in Na-S and Na/(O₂)-S system. The results show that the morphology of deposition Na₂S_x(x ≤ 2) is affected by interfacial energy barrier controlled by overpotentials and the radius of sodium ions, which produced the precipitation of particle shape rather than film. Potentiostatic experiments show the kinetics are elevated in the presence of oxygen. In addition, the exchange current density of different sodium polysulfides was studied. The high-order sodium polysulfide has a lower exchange current density than that of low-order sodium polysulfide in Na-S system, requiring greater driving force, while transformation of the intermediate from high-order oxy-sulfur to low-order oxy-sulfur species require less impulse in Na/(O₂)-S systems. This paper provides new understandings of the deposition mechanism and kinetics of Na₂S_x(x ≤ 2) Na-S and Na/(O₂)-S system in and to choose the appropriate solvent and potential.

    

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3. Paper-Based Portable Sensor and Nanosensor For Sulfur Dioxide Detection

   https://doi.org/10.33790/crmc1100109  

   Le, Thuy ; Macchi, Samantha ; Jalihal, Amanda ; Szwedo, Sylvia ; Siraj, Noureen ( January 2021 , Current Research in Materials Chemistry)

   Sulfur dioxide (SO2) pollution has become an increasing issue world-wide as it is produced both naturally and as industrial waste. Thus, it is critical to develop a sensor and detection methods to analyze SO2 in the atmosphere. In order to design and generate an effective sensor that detects low levels of SO2, fuchsine dyes have been used as a potential sensor material. New hydrophobic derivatives of Pararosaniline hydrochloride (pR-HCl) is developed to further improve the sensitivity of fuchsine dyes towards SO2 gas. It has been shown that these dyes can provide an economic and efficient colorimetric detection of SO2. In this work, (pR-HCl) is converted into an ionic material (IM) via a facile ion exchange reaction with bis (trifluoromethane) sulfonamide (NTF2) counterion. The new, hydrophobic derivative, pararosaniline bis (trifluoromethane) sulfonamide (pR-NTF2) IM was converted into stable aqueous ionic nanomaterials (INMs) by a reprecipitation method. Examination of absorption spectra results revealed that pR-NTF2 IM exhibits enhanced molar absorptivity in comparison to the parent dye (pR-HCl). The improved photophysical properties allowed a framework for a highly sensitive nanosensor for detection of SO2. A paper based portable SO2 sensor was also developed and tested for its ability to colorimetric detection of SO2. The cost effective and stable paper-based sensor exhibited the rapid response to decolorize the fuchsine dyes in few seconds as compared to their parent compound.Keywords: SO2 Detection, Portable and Low-cost Sensor, Nanosensor. 

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4. Binuclear Cyclopentadienylmetal Methylene Sulfur Dioxide Complexes of Rhodium and Iridium Related to a Photochromic Metal Dithionite Complex

   https://doi.org/10.1021/acs.inorgchem.7b02064  

   Rong, Dongsheng ; Gong, Shida ; Wang, Chaoyang ; Luo, Qiong ; Li, Qian-shu ; Xie, Yaoming ; King, R. Bruce ; Schaefer, Henry F. ( November 2017 , Inorganic Chemistry)
5. Sulfur Dioxide Transported From the Residual Layer Drives Atmospheric Nucleation During Haze Periods in Beijing

   https://doi.org/10.1029/2022GL100514  

   Wang, Yonghong ; Ma, Yongjing ; Yan, Chao ; Yao, Lei ; Cai, Runlong ; Li, Shuying ; Lin, Zhuohui ; Zhao, Xiujuan ; Yin, Rujing ; Deng, Chenjuan ; et al ( March 2023 , Geophysical Research Letters)