Mechanism guided two-electron energy storage for redox-flow batteries using nickel bis(diphosphine) complexes.

The storage of multiple electrons per molecule can greatly enhance the energy density of redox-flow batteries (RFBs). Here, we show that nickel bis(diphosphine) complexes efficiently store multiple electrons through either sequential 1e redox waves or a concerted 2e redox wave, depending on their coordination environment. Mechanistic studies comparing ligand sterics (-Me .

Prevalence, inequality and associated factors of overweight/obesity among Bangladeshi adolescents aged 15-19 years.

Background: The objective of the current study was to estimate the prevalence and associated factors of overweight/obesity among Bangladeshi adolescents aged 15-19 y and to identify whether wealth-related inequality exists for overweight/obesity among Bangladeshi older adolescents.

Methods: We analyzed publicly available national representative secondary data from the 2019-2020 Bangladesh Adolescent Health and Wellbeing Survey. This cross-sectional survey was carried out among 18 249 adolescents aged 15-19 y regardless of their marital status using a two-stage stratified sampling technique (the data of 9128 eligible adolescents were included in this analysis).