Title
Layered Metal Thiophosphite Materials: Magnetic, Electrochemical, and Electronic Properties
Date Issued
12 April 2017
Access level
metadata only access
Resource Type
research article
Author(s)
Nanyang Technological University
Abstract
Beyond graphene, transitional metal dichalcogenides, and black phosphorus, there are other layered materials called metal thiophosphites (MPSx), which are recently attracting the attention of scientists. Here we present the synthesis, structural and morphological characterization, magnetic properties, electrochemical performance, and the calculated density of states of different layered metal thiophosphite materials with a general formula MPSx, and as a result of varying the metal component, we obtain CrPS4, MnPS3, FePS3, CoPS3, NiPS3, ZnPS3, CdPS3, GaPS4, SnPS3, and BiPS4. SnPS3, ZnPS3, CdPS3, GaPS4, and BiPS4 exhibit only diamagnetic behavior due to core electrons. By contrast, trisulfides with M = Mn, Fe, Co, and Ni, as well as CrPS4, are paramagnetic at high temperatures and undergo a transition to antiferromagnetic state on cooling. Within the trisulfides series the Néel temperature characterizing the transition from paramagnetic to antiferromagnetic phase increases with the increasing atomic number and the orbital component enhancing the total effective magnetic moment. Interestingly, in terms of catalysis NiPS3, CoPS3, and BiPS4 show the highest efficiency for hydrogen evolution reaction (HER), while for the oxygen evolution reaction (OER) the highest performance is observed for CoPS3. Finally, MnPS3 presents the highest oxygen reduction reaction (ORR) activity compared to the other MPSx studied here. This great catalytic performance reported for these MPSx demonstrates their promising capabilities in energy applications.
Start page
12563
End page
12573
Volume
9
Issue
14
Language
English
OCDE Knowledge area
Ingeniería de materiales
Subjects
Scopus EID
2-s2.0-85017553021
PubMed ID
Source
ACS Applied Materials and Interfaces
ISSN of the container
19448244
Sponsor(s)
M.P. acknowledges a Tier 2 grant (MOE2013-T2-1-056; ARC 35/13) from the Ministry of Education, Singapore. Z.S., D.S., and S.H. were supported by Czech Science Foundation (GACR No. 16-05167S) and by specific university research (MSMT No. 20-SVV/2016).
Sources of information:
Directorio de Producción Científica
Scopus