Atomic-Sized Pores Enhanced Electrocatalysis of TaS<sub>2</sub> Nanosheets for Hydrogen Evolution.

Li, Hui; Tan, Yongwen; Liu, Pan; Guo, Chenguang; Luo, Min; Han, Jiuhui; Lin, Tianquan; Huang, Fuqiang et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A plasma oxidation method is developed to fabricate atomic-scale pores in the basal planes of electrochemically inert TaS<sub>2</sub> nanosheets to functionalize the 2D crystals with high electrocatalysis for hydrogen evolution reaction. Quantitative measurements of under-coordinated atoms at edges of the pores by aberration-corrected transmission electron microscopy reveal the intrinsic correlation between the defective atomic sites and electrocatalytic activities of 2D TaS<sub>2</sub> .