Sökning: id:"swepub:oai:research.chalmers.se:d8066f5c-5b57-4cda-9247-2ef7896e74e6" >
Investigation of 2D...
Investigation of 2D Boridene from First Principles and Experiments
-
- Helmer, Pernilla (författare)
- Linköpings universitet,Materialdesign,Tekniska fakulteten
-
- Halim, Joseph, 1985- (författare)
- Linköpings universitet,Materialdesign,Tekniska fakulteten
-
- Zhou, Jie, 1990- (författare)
- Linköpings universitet,Materialdesign,Tekniska fakulteten
-
visa fler...
-
- Mohan, Roopathy, 1991 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chemical Physics, Department of Physics, Chalmers University of Technology, Gothenburg
-
- Wickman, Björn, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chemical Physics, Department of Physics, Chalmers University of Technology, Gothenburg
-
- Björk, Jonas, 1983- (författare)
- Linköpings universitet,Materialdesign,Tekniska fakulteten
-
- Rosén, Johanna, 1975- (författare)
- Linköpings universitet,Materialdesign,Tekniska fakulteten
-
visa färre...
-
(creator_code:org_t)
- 2022-01-05
- 2022
- Engelska.
-
Ingår i: Advanced Functional Materials. - : Wiley. - 1616-3028 .- 1616-301X.
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://onlinelibrar...
-
https://doi.org/10.1...
-
https://liu.diva-por... (primary) (Raw object)
-
https://research.cha...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Recently, a 2D metal boride - boridene - has been experimentally realized in the form of single-layer molybdenum boride sheets with ordered metal vacancies, through selective etching of the nanolaminated 3D parent borides (Mo2/3Y1/3)(2)AlB2 and (Mo2/3Sc1/3)(2)AlB2. The chemical formula of the boridene was suggested to be Mo4/3B2-xTz, where T-z denotes surface terminations. Here, the termination composition and material properties of Mo4/3B2-xTz from both theoretical and experimental perspectives are investigated. Termination sites are considered theoretically for termination species T = O, OH, and F, and the energetically favored termination configuration is identified at z = 2 for both single species terminations and binary termination mixes of different stoichiometries in ordered and disordered configurations. Mo4/3B2-xTz is shown to be dynamically stable for multiple termination stoichiometries, displaying semiconducting, semimetallic, or metallic behavior depending on how different terminations are combined. The approximate chemical formula of a freestanding film of boridene is attained as Mo1.33B1.9O0.3(OH)(1.5)F-0.7 from X-ray photoelectron spectroscopy (XPS) analysis which, within error margins, is consistent with the theoretical results. Finally, metallic and additive-free Mo4/3B2-xTz shows high catalytic performance for the hydrogen evolution reaction, with an onset potential of 0.15 V versus the reversible hydrogen electrode.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- electronic structure
- MBene
- boridene
- surface terminations
- HER
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Helmer, Pernilla
-
Halim, Joseph, 1 ...
-
Zhou, Jie, 1990-
-
Mohan, Roopathy, ...
-
Wickman, Björn, ...
-
Björk, Jonas, 19 ...
-
visa fler...
-
Rosén, Johanna, ...
-
visa färre...
- Om ämnet
-
- TEKNIK OCH TEKNOLOGIER
-
TEKNIK OCH TEKNO ...
-
och Materialteknik
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Materialkemi
- Artiklar i publikationen
-
Advanced Functio ...
- Av lärosätet
-
Chalmers tekniska högskola
-
Linköpings universitet