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Enhancing battery longevity by regulating the solvation chemistry of organic iodide.
Angew Chem Int Ed Engl
December 2024
Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
For rechargeable zinc-iodine batteries, the low electrical conductivity of iodine and the easy dissolution of polyiodide in the electrolyte need to be carefully managed to ensure efficient operation. Herein, we introduce an organic iodized salt, formamidinium iodide (CHNI), to modulate the solvation structure of iodide ion, aimed to improve the reaction kinetics of iodine for reversible redox conversion. The participation of formamidinium ion (FA) into solvation structure leads to the formation of the favorable FAIZn(HO) complex, facilitating easier desolvation for redox conversion with iodine.
View Article and Find Full Text PDFAqueous Alkaline Zinc-Iodine Battery with Two-Electron Transfer.
ACS Nano
January 2025
Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China.
While many cathode materials have been developed for mild electrolyte-based Zn batteries, the lack of cathode materials hinders the progress of alkaline zinc batteries. Halide iodine, with its copious valence nature and redox possibilities, is considered a promising candidate. However, energetic alkaline iodine redox chemistry is impeded by an alkali-unadapted I element cathode and thermodynamically unstable reaction products.
View Article and Find Full Text PDFThyroid Autoimmunity During Universal Salt Iodisation-Possible Short-Term Modulation with Longer-Term Stability.
Nutrients
December 2024
Thyroid Research Group, Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff CF14 4XN, UK.
Universal salt iodisation (USI) plays an essential role in the provision of iodine (I) to populations worldwide. Countries adopting USI programmes, adhering to strict criteria laid down by expert organisations such as the Iodine Global Network, are estimated to have reduced the prevalence of I deficiency by 75% (protecting 720 million individuals worldwide). Despite this success, doubts have been raised as to the desirability of continuing such programmes because of (a) the need to reduce salt intake for cardiovascular prevention and (b) the induction of thyroid autoimmunity.
View Article and Find Full Text PDFA Sentinel Survey in Remote Western Thailand Indicates that School-Aged Children and Reproductive-Aged Women of the Indigenous Pwo Karen Community are Iodine Sufficient.
Br J Nutr
January 2025
Institute of Nutrition, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
Indigenous peoples are often not routinely included in iodine programs because of language barriers and remote access, and may thus be at higher risk of iodine deficiency disorders, which could adversely impact their quality of life. We conducted this cross-sectional study in the remote Pwo Karen community of Thailand to determine the urinary iodine concentration (UIC) of school-aged children (SAC) and women of reproductive age (WRA) and investigate the iodine content in household salt. We measured UIC in spot urine samples from healthy SAC and WRA, administered a questionnaire, estimated daily iodine intake and collected household salt samples to determine salt iodine concentration.
View Article and Find Full Text PDFHigh water iodine levels are associated with the prevalence of subclinical hypothyroidism, thyroid nodules and goiter among pregnant women in Shandong, China.
J Nutr
December 2024
Department of Nutrition and Food Hygiene, Tianjin Medical University, Tianjin, 300070, China; Tianjin Medical University General Hospital, Tianjin, 300070, China; Tianjin Environmental, Nutrition and Public Health Center, Tianjin, 300070, China. Electronic address:
Background: Both iodine deficiency and iodine excess can harm the thyroid glands during pregnancy. In areas without iodine fortification, the relationship between the water iodine concentration (WIC) and thyroid disease in pregnant women requires further investigation.
Objective: The aim of this study was to evaluate the relationship between water iodine levels and the prevalence of thyroid disease in pregnant women residing in areas with high water iodine levels without access to iodized salt.
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