Photochemical HER activity of layered metal phospho-sulfides and -selenides

被引：41

作者：

Barua, Manaswee ^{[1
]}

Ayyub, Mohd Monis ^{[1
]}

Vishnoi, Pratap ^{[1
]}

Pramoda, K. ^{[1
]}

Rao, C. N. R. ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Sch Adv Mat, Sheikh Saqr Lab, New Chem Unit, Jakkur PO, Bangalore 560064, Karnataka, India

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 39期

关键词：

RAY PHOTOELECTRON-SPECTRA; HYDROGEN EVOLUTION; GRAPHENE; TRICHALCOGENIDES; NANOSHEET; CATALYST; CRYSTAL; SITES; FEPS3; IRON;

D O I：

10.1039/c9ta06044h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Monometallic and bimetallic layered phosphosulfides and phosphoselenides, prepared by high temperature solid state reactions, have been subjected to exfoliation to obtain few-layer materials. The photochemical HER activity of these materials has been investigated. Among the ternary MPS3, the nickel compound exhibits the highest HER activity (2.6 mmol h(-1) g(-1)), while MnPS3, ZnPS3 and CdPS3 exhibit low activity, due to their large band gaps and presence of long P-P and M-S bonds. Amongst phosphoselenides, FePSe3 shows a higher HER activity of 1.7 mmol h(-1) g(-1) than the Mn and Cd compounds. The quaternary phosphochalcogenide, Ag0.5In0.5PS3, shows a high photochemical HER activity of 1.9 mmol h(-1) g(-1).

引用

页码：22500 / 22506

页数：7

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