diplomsko delo
Dean Uštar (Author), Tina Skalar (Mentor)

Abstract

Vodik je atraktivno gorivo prihodnosti, ker pri njegovem zgorevanju ni emisij toplogrednih plinov. Edina težava, s katero se srečamo pri uporabi vodika kot goriva, je njegovo shranjevanje. Najpogosteje uporabljani tehniki, kot sta shranjevanje tekočega vodika in vodika pod visokim tlakom, sta namreč potencialno nevarni zaradi nizke temperature oziroma visokega tlaka. Kot zanimiv medij se kažejo kovinski hidridi, ker omogočajo varno shranjevanje vodika. V zadnjih letih so se na tem področju pojavili novi materiali, tako imenovani materiali z visoko entropijo, kamor sodijo tudi zlitine z visoko entropijo. Te namreč nudijo mnogo širši oblikovalski prostor v primerjavi s tradicionalnimi zlitinami zaradi možnosti finega prilagajanja njihove sestave in posledično prilagajanja njihovih lastnosti. V diplomskem delu bodo predstavljeni osnovni koncepti materialov z visoko entropijo (sinteza, najpogostejše tehnike karakterizacije njihove mikrostrukture in sestave, shranjevanje vodika). Namen tega dela je tudi raziskati, kako so se zlitine z visoko entropijo odnesle na področju shranjevanja vodika, in nekaj primerov takih materialov.

Keywords

zlitine z visoko entropijo;konfiguracijska entropija;shranjevanje vodika;HEM;sinteza materialov z visoko entropijo;karakterizacija materialov;diplomska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [D. Uštar]
UDC: 620.1(043.2)
COBISS: 134065923 Link will open in a new window
Views: 50
Downloads: 16
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Use of high entropy materials for hydrogen storage
Secondary abstract: Hydrogen is an attractive fuel of the future, because it doesn’t have any greenhouse gas emissions during its combustion. The one problem that we run into with using hydrogen as fuel is its storage. As the two most commonly used techniques like storage of liquid hydrogen and hydrogen under high pressure are potentially dangerous because of the low temperature or high pressure respectively. Metal hydrides are considered as an interesting storage medium, because they offer safe hydrogen storage. In recent years, new materials have emerged in this field, the so called high-entropy materials, which include high-entropy alloys. These offer a much wider design space compared to traditional alloys due to the possibility of fine tuning their composition and consequently tweaking their properties. The thesis will present the basic concepts of high-entropy materials (synthesis, the most common techniques for characterising their microstructure and composition, hydrogen storage). The aim of this work is to also explore how high-entropy alloys have performed in the field of hydrogen storage, and some examples of such materials.
Secondary keywords: high-entropy alloys;hydrogen storage;configurational entropy;Materiali;Univerzitetna in visokošolska dela;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000372
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo
Pages: 52 str.
ID: 16789214