A step towards efficient water splitting: a high-performance CuCo(OH)/CNT/MoS electrocatalyst.

A high-performance CuCo(OH)/CNT/MoS composite electrocatalyst was synthesized by rapid co-precipitation. This bifunctional material exhibits exceptional electrochemical properties, achieving low overpotentials of 65 mV (OER) and 211 mV (HER) at , with Tafel slopes of 96 mV dec and 110 mV dec. Notably, CuCo(OH)/CNT/MoS demonstrates remarkable durability, sustaining its activity for more than 40 hours in alkaline and 25 hours in acidic media, accompanied by minimal charge transfer resistance.

Mask Acne in Skin of Color: A Significant Dermatological Condition Amidst the COVID-19 Pandemic.

The COVID-19 pandemic has given rise to the need to use personal protective equipment such as masks, among healthcare professionals and the general public. Numerous facial dermatoses linked to the use of masks have been described, from which the term has emerged. Although prolonged mask usage has been necessary, and a vast majority of people develop various skin conditions, there is a lack of research on the effects of masks on skin.