“…Normally, MXenes have chemical formula M n +1 X n T x ( n = 1,2, or 3), where M denotes a transition metal, X represents C and/or N elements, and T x stands for the surface functional groups such as –F, –O, or –OH groups. The metallic conductivity, rich surface chemistry, and hydrophilic nature endow MXenes with excellent electronic and electrochemical properties for various applications, including supercapacitors, metal‐ion batteries, photocatalysts, and electrocatalysts 9 . Computational screening and experimental study suggested that both Mo 2 CT x and Ti 2 CT x exhibit good HER owing to the catalytically active basal planes rather than edge sites like in MoS 2 10 .…”