English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  In Situ Synchrotron X-ray Diffraction Studies of the Mechanochemical Synthesis of ZnS from its Elements

Petersen, H., Reichle, S., Leiting, S., Losch, P., Kersten, W., Rathmann, T., et al. (2021). In Situ Synchrotron X-ray Diffraction Studies of the Mechanochemical Synthesis of ZnS from its Elements. Chemistry – A European Journal, 27(49), 12558-12565. doi:10.1002/chem.202101260.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Petersen, Hilke1, Author           
Reichle, Steffen2, Author           
Leiting, Sebastian1, Author           
Losch, Pit3, Author           
Kersten, Wolfgang4, Author           
Rathmann, Tobias1, Author           
Tseng, Jochi5, Author
Etter, Martin6, Author
Schmidt, Wolfgang3, Author           
Weidenthaler, Claudia1, Author           
Affiliations:
1Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              
2Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
3Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445618              
4Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445580              
5College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518060 China, ou_persistent22              
6P02.1 Petra III, Deutsches Elektronen Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany, ou_persistent22              

Content

show
hide
Free keywords: in situ investigations; kinetic study; material synthesis; mechanochemistry; synchrotron study
 Abstract: Mechanochemistry, as a synthesis tool for inorganic materials, became an ever-growing field in material chemistry. The direct energy transfer by collision of the educts with the milling media gives the possibility to design environmental-friendly reactions. Nevertheless, the underlying process of energy transfer and hence the kinetics of mechanosynthesis remain unclear. Herein, we present in situ synchrotron X-ray diffraction studies coupled with pressure measurements performed during the formation of ZnS and the subsequent phase transition (PT) from the hexagonal to the cubic modification. Milling Zn and S8 results in the sublimation of S8, observed by a sudden pressure increase. Simultaneously, the hexagonal metastable ZnS-modification (wurtzite) forms. Via detection of the pressure maximum, the exact start of the wurtzite formation can be determined. Immediately after the formation of wurtzite, the structural PT to the thermodynamic stable cubic modification sphalerite takes place. This PT can be described by the Prout-Tompkins equation for autocatalytic reactions, similar to thermally induced PT in sulfur vapor at high temperatures (T>1133 K). The increase in the reactivity of the wurtzite formation is explained by the reaction in sulfur vapor and the induction of defect structures by the collisions with the milling media.

Details

show
hide
Language(s): eng - English
 Dates: 2021-04-082021-06-012021-09-01
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/chem.202101260
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Chemistry – A European Journal
  Other : Chem. – Eur. J.
  Other : Chem. Eur. J.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 27 (49) Sequence Number: - Start / End Page: 12558 - 12565 Identifier: ISSN: 0947-6539
CoNE: https://pure.mpg.de/cone/journals/resource/954926979058