Journal article
W-Based Atomic Laminates and Their 2D Derivative W1.33C MXene with Vacancy Ordering
Advanced materials (Weinheim), v 30(21), pn/a
2018
PMID: 29633399
Abstract
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 (W2/3M1/32)(2)AC, where M-2 = Sc, Y (W), and A = Al, Si, Ga, Ge, In, and Sn. Of over 18 compositions probed, only twowith a monoclinic C2/c structureare predicted to be stable: (W2/3Sc1/3)(2)AlC and (W2/3Y1/3)(2)AlC and indeed found to exist. Selectively etching the Al and Sc/Y atoms from these 3D laminates results in W1.33C-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.
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Details
- Title
- W-Based Atomic Laminates and Their 2D Derivative W1.33C MXene with Vacancy Ordering
- Creators
- Rahele Meshkian - Linköping UniversityMartin Dahlqvist - Linköping UniversityJun Lu - Linköping UniversityBjorn Wickman - Chalmers University of TechnologyJoseph Halim - Linköping UniversityJimmy Thörnberg - Linköping UniversityQuanzheng Tao - Linköping UniversityShixuan Li - Drexel UniversitySaad Intikhab - Drexel UniversityJoshua Snyder - Drexel UniversityMichel W. Barsoum - Drexel UniversityMelike Yildizhan - Tekniska fakultetenJustinas Palisaitis - Linköping UniversityLars Hultman - Linköping UniversityPer O A Persson - Tekniska fakultetenJohanna Rosén - Linköping University
- Publication Details
- Advanced materials (Weinheim), v 30(21), pn/a
- Publisher
- Wiley
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Chemical and Biological Engineering
- Web of Science ID
- WOS:000434032600011
- Scopus ID
- 2-s2.0-85045191356
- Other Identifier
- 991019168965004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter