Publication detail

BALL-MILLED HYDROGEN STORAGE IN MG-CU - BASED ALLOYS MODIFIED BY KCL: DISTRIBUTION OF COMPONENTS

ČERMÁK, J. KRÁL, L. ROUPCOVÁ, P.

Original Title

BALL-MILLED HYDROGEN STORAGE IN MG-CU - BASED ALLOYS MODIFIED BY KCL: DISTRIBUTION OF COMPONENTS

Type

conference paper

Language

English

Original Abstract

Magnesium and its alloys is a class of materials, which is still one of the most prospective hydrogen storage (HS) compositions. This is due before all to their high hydrogen sorption capacity and low cost. However, pure Mg must be alloyed with other elements to suppress the tendency to Mg oxidation and to improve the otherwise lazy ab/desorption kinetics and to decrease the operation temperature. Also some modifiers, as e.g., hall elements and alkali metals, are known to enhance the HS characteristics. It is known that sorption performance can be further substantially enhanced by nanosizing. This paper is devoted to study of distribution of components in Mg-xCu alloys (x = 9.94 - 21.56 wt%) prepared by high-energy ball-milling (BM). Elements K and Cl - as modifiers - were introduced by BM of the Mg-Cu base with addition of KCl. It was found that KCl decomposed partly into elements, which entered grains of milled blend. Chlorine anions entered preferentially the Mg-rich regions.

Keywords

Ball-milling; Copper; Hydrogen storage; Magnesium

Authors

ČERMÁK, J.; KRÁL, L.; ROUPCOVÁ, P.

Released

26. 5. 2021

ISBN

978-8-08-729499-4

Book

METAL 2021 - 30th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings

Pages from

1037

Pages to

1042

Pages count

6

BibTex

@inproceedings{BUT182479,
  author="Jiří {Čermák} and Lubomír {Král} and Pavla {Roupcová}",
  title="BALL-MILLED HYDROGEN STORAGE IN MG-CU - BASED ALLOYS MODIFIED BY KCL: DISTRIBUTION OF COMPONENTS",
  booktitle="METAL 2021 - 30th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings",
  year="2021",
  pages="1037--1042",
  doi="10.37904/metal.2021.4213",
  isbn="978-8-08-729499-4"
}