Format

Send to

Choose Destination
Materials (Basel). 2018 Aug 24;11(9). pii: E1520. doi: 10.3390/ma11091520.

Insertion of Platinum Nanoparticles into MoS₂ Nanoflakes for Enhanced Hydrogen Evolution Reaction.

Li D1,2, Li Y3, Zhang B4, Lui YH5, Mooni S6,7, Chen R8, Hu S9, Ni H10.

Author information

1
The State Key Laboratory of Refractories and Metallurgy, Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China. danliwust@163.com.
2
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. danliwust@163.com.
3
The State Key Laboratory of Refractories and Metallurgy, Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China. liyang2468@wust.edu.cn.
4
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. boweiz@iastate.edu.
5
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. luiyuhui1992@gmail.com.
6
The State Key Laboratory of Refractories and Metallurgy, Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China. sivaphdchem@gmail.com.
7
Electroanalytical Lab., Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India. sivaphdchem@gmail.com.
8
School of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, China. chenrs@126.com.
9
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. shanhu@iastate.edu.
10
The State Key Laboratory of Refractories and Metallurgy, Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China. nihongwei@wust.edu.cn.

Abstract

Pt as a chemical inert metal has been widely applied as the counter electrode in various electrochemical measurements. However, it can also be dissolved and redeposit to the working electrode under certain electrochemical circumstances. Herein we demonstrated a cyclic voltammetry (CV) cycling method to synthesize a catalyst comprising inserted Pt nanoparticles into MoS₂ nanoflake stack structures on stainless steel mesh (SSM). The binder-free composite structure exhibits significantly enhanced hydrogen evolution reaction (HER) catalytic activity with an overpotentials of 87 mV at 10 mA cm-2. The deposited Pt nanoparticles significantly enhance the catalytic activity through changing the structure of MoS₂ and increasing the amount of active sites. This work provides a new way forward for rational design of the nano-electrocatalysts.

KEYWORDS:

HER; MoS2; Pt counter electrode; insertion; stainless steel mesh

Supplemental Content

Full text links

Icon for Multidisciplinary Digital Publishing Institute (MDPI) Icon for PubMed Central
Loading ...
Support Center