Structural and electronic modification of MoS₂ nanosheets using S-doped carbon for efficient electrocatalysis of the hydrogen evolution reaction

Thangavel Naresh Kumar; Naveen Chandrasekaran; Kanala Lakshminarasimha Phani

doi:10.1039/c4cc10311d

Structural and electronic modification of MoS₂ nanosheets using S-doped carbon for efficient electrocatalysis of the hydrogen evolution reaction

Chem Commun (Camb). 2015 Mar 25;51(24):5052-5. doi: 10.1039/c4cc10311d.

Authors

Thangavel Naresh Kumar¹, Naveen Chandrasekaran, Kanala Lakshminarasimha Phani

Affiliation

¹ Nanoscale Electrocatalysis Group, Electrodics & Electrocatalysis Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630006, Tamil Nadu, India. kanalaphani@yahoo.com klnphani@cecri.res.in.

PMID: 25708346
DOI: 10.1039/c4cc10311d

Abstract

We discovered the in situ generation of S-doped carbon sandwiched between the MoS2 nano-sheets during pyrolysis of Mo(VI)-polydopamine (PDA) in the presence of elemental sulfur. This causes enrichment of MoS2 with more edge planes (2H → 1T), also resulting in enhanced charge density and electronic conductivity. The phase transformed MoS2[@S-C(PDA)] exhibits enhanced HER activity with η = 160 mV at a current density of 10 mA cm(-2).