Defect-Rich Heterogeneous MoS2/rGO/NiS Nanocomposite for Efficient pH-Universal Hydrogen Evolution

Liu, Guangsheng, Thummavichai, Kunyapat, Lv, Xuefeng, Chen, Wenting, Lin, Tingjun, Tan, Shipeng, Zeng, Minli, Chen, Yu, Wang, Nannan and Zhu, Yanqiu (2021) Defect-Rich Heterogeneous MoS2/rGO/NiS Nanocomposite for Efficient pH-Universal Hydrogen Evolution. Nanomaterials, 11 (3). pp. 662-674. ISSN 2079-4991

nanomaterials-11-00662-v3.pdf - Published Version
Available under License Creative Commons Attribution 4.0.

Download (5MB) | Preview
Official URL:


Molybdenum disulfide (MoS2) has been universally demonstrated to be an effective electrocatalytic catalyst for hydrogen evolution reaction (HER). However, the low conductivity, few active sites and poor stability of MoS2-based electrocatalysts hinder its hydrogen evolution performance in a wide pH range. The introduction of other metal phases and carbon materials can create rich interfaces and defects to enhance the activity and stability of the catalyst. Herein, a new defect-rich heterogeneous ternary nanocomposite consisted of MoS2, NiS and reduced graphene oxide (rGO) are synthesized using ultrathin αNi(OH)2 nanowires as the nickel source. The MoS2/rGO/NiS-5 of optimal formulation in 0.5 M H2SO4, 1.0 M KOH and 1.0 M PBS only requires 152, 169 and 209 mV of overpotential to achieve a current density of 10 mA cm−2 (denoted as η10), respectively. The excellent HER performance of the MoS2/rGO/NiS-5 electrocatalyst can be ascribed to the synergistic effect of abundant heterogeneous interfaces in MoS2/rGO/NiS, expanded interlayer spacings, and the addition of high conductivity graphene oxide. The method reported here can provide a new idea for catalyst with Ni-Mo heterojunction, pH-universal and inexpensive hydrogen evolution reaction electrocatalyst.

Item Type: Article
Additional Information: This work was supported by the grants from the National Natural Science Foundation (grant NO: 51972068) and Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials.
Uncontrolled Keywords: electrocatalyst, hydrogen evolution reaction, molybdenum disulfide, reduced graphene oxide, nickel sulfide
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: John Coen
Date Deposited: 08 Oct 2021 12:46
Last Modified: 08 Oct 2021 13:00

Actions (login required)

View Item View Item


Downloads per month over past year

View more statistics