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W-Based Atomic Lami...
W-Based Atomic Laminates and Their 2D Derivative W1.33C MXene with Vacancy Ordering
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- Meshkian, Rahele (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Dahlqvist, Martin (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Lu, Jun (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Wickman, Björn, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Sweden
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- Halim, Joseph (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Thörnberg, Jimmy (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Tao, Quanzheng (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Li, Shixuan (author)
- Drexel University,Drexel Univ, PA 19104 USA
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- Intikhab, Saad (author)
- Drexel University,Drexel Univ, PA 19104 USA
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- Snyder, Joshua (author)
- Drexel University,Drexel Univ, PA 19104 USA
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- Barsoum, Michel W. (author)
- Drexel University,Drexel Univ, PA 19104 USA
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- Yildizhan, Melike (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Palisaitis, Justinas (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Hultman, Lars (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Persson, Per O A (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Rosén, Johanna (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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(creator_code:org_t)
- 2018-04-06
- 2018
- English.
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In: Advanced Materials. - : Wiley. - 0935-9648 .- 1521-4095. ; 30:21
- Related links:
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https://research.cha...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Structural design on the atomic level can provide novel chemistries of hybrid MAX phases and their MXenes. Herein, density functional theory is used to predict phase stability of quaternary i-MAX phases with in-plane chemical order and a general chemistry (W 2/3 M 2 1/3 ) 2 AC, where M 2 = Sc, Y (W), and A = Al, Si, Ga, Ge, In, and Sn. Of over 18 compositions probed, only two—with a monoclinic C2/c structure—are predicted to be stable: (W 2/3 Sc 1/3 ) 2 AlC and (W 2/3 Y 1/3 ) 2 AlC and indeed found to exist. Selectively etching the Al and Sc/Y atoms from these 3D laminates results in W 1.33 C-based MXene sheets with ordered metal divacancies. Using electrochemical experiments, this MXene is shown to be a new, promising catalyst for the hydrogen evolution reaction. The addition of yet one more element, W, to the stable of M elements known to form MAX phases, and the synthesis of a pure W-based MXene establishes that the etching of i-MAX phases is a fruitful path for creating new MXene chemistries that has hitherto been not possible, a fact that perforce increases the potential of tuning MXene properties for myriad applications.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- density functional theory
- i-MAX phase
- tungsten
- MXene
- hydrogen evolution reaction
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Meshkian, Rahele
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Dahlqvist, Marti ...
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Lu, Jun
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Wickman, Björn, ...
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Halim, Joseph
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Thörnberg, Jimmy
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show more...
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Tao, Quanzheng
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Li, Shixuan
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Intikhab, Saad
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Snyder, Joshua
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Barsoum, Michel ...
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Yildizhan, Melik ...
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Palisaitis, Just ...
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Hultman, Lars
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Persson, Per O A
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Rosén, Johanna
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- Articles in the publication
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Advanced Materia ...
- By the university
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Chalmers University of Technology
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Linköping University