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Tuning the electronic structures of monolayer triphosphides MP3 (M = Sn and Ge) for CO2 electroreduction through interface engineering: a theoretical prediction

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Abstract

Interface engineering by integrating various two-dimensional materials to form heterostructures can not only preserve the desired properties of individual components, but also induce new functions. Herein, by means of density functional theory (DFT) computations, we have investigated the effects of interface engineering of the graphene substrate on the electronic structures of monolayer triphosphides MP3 (M = Sn and Ge) and their catalytic performance for the electroreduction of carbon dioxide (CO2ER). Our results revealed that the MP3/graphene interfaces exhibit good structural stability, enhanced electrical conductivity, superior CO2ER performance, and obvious suppressing effects on hydrogen evolution due to the charge transfer at the interface. Thus, our results suggested that SnP3/graphene and GeP3/graphene heterostructures can be utilized as promising CO2ER catalysts with high-efficiency and high-selectivity, offering cost-effective opportunities to convert CO2 for renewable energy supply via interface engineering.

Graphical abstract: Tuning the electronic structures of monolayer triphosphides MP3 (M = Sn and Ge) for CO2 electroreduction through interface engineering: a theoretical prediction

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Article information


Submitted
06 Jan 2020
Accepted
26 Feb 2020
First published
27 Feb 2020

Phys. Chem. Chem. Phys., 2020, Advance Article
Article type
Paper

Tuning the electronic structures of monolayer triphosphides MP3 (M = Sn and Ge) for CO2 electroreduction through interface engineering: a theoretical prediction

Z. Wang and J. Zhao, Phys. Chem. Chem. Phys., 2020, Advance Article , DOI: 10.1039/D0CP00062K

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