Cu2- xS-MoS2 Nano-Octahedra at the Atomic Scale: Using a Template to Activate the Basal Plane of MoS2 for Hydrogen Production

Pradipta Sankar Maiti; Anal Kr Ganai; Ronen Bar-Ziv; Andrey N. Enyashin; Lothar Houben; Maya Bar Sadan

doi:10.1021/acs.chemmater.8b01239

Cu_{2- x}S-MoS₂ Nano-Octahedra at the Atomic Scale: Using a Template to Activate the Basal Plane of MoS₂ for Hydrogen Production

Pradipta Sankar Maiti, Anal Kr Ganai, Ronen Bar-Ziv, Andrey N. Enyashin, Lothar Houben, Maya Bar Sadan

Department of Chemistry

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

An in-depth understanding of the growth mechanism of Cu_2-xS−MoS₂ grown in a one-pot synthesis using colloidal chemistry was demonstrated. The obtained structures are stabilized by leaching of Cu ions to the interface with the MoS₂, thus creating an improved MoS₂ surface for hydrogen evolution. In addition, the formation of the 1T phase is accompanied by a substantial difference in the electronic structure, which is a possible factor in the growth mechanism and the arrested growth of additional MoS₂ layers. The atomic scale structural analysis provides the indispensable insights into the growth process and the origin of the macroscopic properties, which were supported by the DFT calculations.

Original language	American English
Pages (from-to)	4489-4492
Number of pages	4
Journal	Chemistry of Materials
Volume	30
Issue number	14
DOIs	https://doi.org/10.1021/acs.chemmater.8b01239
State	Published - 24 Jul 2018

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/acs.chemmater.8b01239

Cite this

@article{f7514ac6b4d4410c80f0d996212c3f62,

title = "Cu2- xS-MoS2 Nano-Octahedra at the Atomic Scale: Using a Template to Activate the Basal Plane of MoS2 for Hydrogen Production",

abstract = "An in-depth understanding of the growth mechanism of Cu2-xS−MoS2 grown in a one-pot synthesis using colloidal chemistry was demonstrated. The obtained structures are stabilized by leaching of Cu ions to the interface with the MoS2, thus creating an improved MoS2 surface for hydrogen evolution. In addition, the formation of the 1T phase is accompanied by a substantial difference in the electronic structure, which is a possible factor in the growth mechanism and the arrested growth of additional MoS2 layers. The atomic scale structural analysis provides the indispensable insights into the growth process and the origin of the macroscopic properties, which were supported by the DFT calculations.",

author = "Maiti, \{Pradipta Sankar\} and Ganai, \{Anal Kr\} and Ronen Bar-Ziv and Enyashin, \{Andrey N.\} and Lothar Houben and \{Bar Sadan\}, Maya",

note = "Funding Information: *[email protected] ORCID Ronen Bar-Ziv: 0000-0003-3082-7845 Maya Bar Sadan: 0000-0002-1956-8195 Funding This research project was funded by ISF grant 808/16 and supported by Act 211 Government of the Russian Federation, contract No. 02.A03.21.0006. Notes The authors declare no competing financial interest. Funding Information: This research project was funded by ISF grant 808/16 and supported by Act 211 Government of the Russian Federation, contract No. 02.A03.21.0006.",

year = "2018",

month = jul,

day = "24",

doi = "10.1021/acs.chemmater.8b01239",

language = "American English",

volume = "30",

pages = "4489--4492",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

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T1 - Cu2- xS-MoS2 Nano-Octahedra at the Atomic Scale

T2 - Using a Template to Activate the Basal Plane of MoS2 for Hydrogen Production

AU - Maiti, Pradipta Sankar

AU - Ganai, Anal Kr

AU - Bar-Ziv, Ronen

AU - Enyashin, Andrey N.

AU - Houben, Lothar

AU - Bar Sadan, Maya

N1 - Funding Information: *[email protected] ORCID Ronen Bar-Ziv: 0000-0003-3082-7845 Maya Bar Sadan: 0000-0002-1956-8195 Funding This research project was funded by ISF grant 808/16 and supported by Act 211 Government of the Russian Federation, contract No. 02.A03.21.0006. Notes The authors declare no competing financial interest. Funding Information: This research project was funded by ISF grant 808/16 and supported by Act 211 Government of the Russian Federation, contract No. 02.A03.21.0006.

PY - 2018/7/24

Y1 - 2018/7/24

N2 - An in-depth understanding of the growth mechanism of Cu2-xS−MoS2 grown in a one-pot synthesis using colloidal chemistry was demonstrated. The obtained structures are stabilized by leaching of Cu ions to the interface with the MoS2, thus creating an improved MoS2 surface for hydrogen evolution. In addition, the formation of the 1T phase is accompanied by a substantial difference in the electronic structure, which is a possible factor in the growth mechanism and the arrested growth of additional MoS2 layers. The atomic scale structural analysis provides the indispensable insights into the growth process and the origin of the macroscopic properties, which were supported by the DFT calculations.

AB - An in-depth understanding of the growth mechanism of Cu2-xS−MoS2 grown in a one-pot synthesis using colloidal chemistry was demonstrated. The obtained structures are stabilized by leaching of Cu ions to the interface with the MoS2, thus creating an improved MoS2 surface for hydrogen evolution. In addition, the formation of the 1T phase is accompanied by a substantial difference in the electronic structure, which is a possible factor in the growth mechanism and the arrested growth of additional MoS2 layers. The atomic scale structural analysis provides the indispensable insights into the growth process and the origin of the macroscopic properties, which were supported by the DFT calculations.

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