Publication detail

Vanadium Dopants: A Boon or a Bane for Molybdenum Dichalcogenides-Based Electrocatalysis Applications

CHIA, H. MAYORGA-MARTINEZ, C. SOFER, Z. LAZAR, P. WEBSTER, R. PUMERA, M.

Original Title

Vanadium Dopants: A Boon or a Bane for Molybdenum Dichalcogenides-Based Electrocatalysis Applications

Type

journal article in Web of Science

Language

English

Original Abstract

The ever-rising concerns with regards to energy shortages and climate change have made the search for clean and renewable energy sources a pressing priority for the sustainable development of societies. Although, conventional precious metal-based catalysts such as platinum, iridium, and ruthenium are able to efficiently catalyze the conversion of chemical to electrical energy, they are often very costly, scarce, and suffer from poor stability, hence impeding their widespread applications. The limitations of the current state-of art catalysts have propelled tremendous efforts in search for alternative catalysts. Notably, transition metal dichalcogenides (TMDs) have spurred much enthusiasm because of their natural abundance, low cost, and remarkable catalytic activity. Numerous studies have recounted that doping can tune the properties of TMDs and that vanadium dopants reportedly improve the electrical properties of Group 6 TMDs. Herein, the authors aspire to investigate the effects of doping varying amounts of vanadium on molybdenum dichalcogenides on their electrocatalytic activities toward hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction. Despite previous studies bespeaking promising effects, the results here demonstrate both improvements and worsening of electrocatalytic performances from varying the stoichiometry of vanadium dopants in molybdenum dichalcogenides, depending on the type of materials and intended electrochemical applications.

Keywords

dopings; electrochemistries; hydrogen evolution reactions; oxygen evolution reactions; oxygen reduction reactions; transition metal dichalcogenides

Authors

CHIA, H.; MAYORGA-MARTINEZ, C.; SOFER, Z.; LAZAR, P.; WEBSTER, R.; PUMERA, M.

Released

1. 2. 2021

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1616-3028

Periodical

Advanced functional materials

Year of study

31

Number

8

State

Federal Republic of Germany

Pages from

2009083-1

Pages to

2009083-10

Pages count

10

URL