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Article ; Online: Chemical scissor-mediated structural editing of layered transition metal carbides.

Ding, Haoming / Li, Youbing / Li, Mian / Chen, Ke / Liang, Kun / Chen, Guoxin / Lu, Jun / Palisaitis, Justinas / Persson, Per O Å / Eklund, Per / Hultman, Lars / Du, Shiyu / Chai, Zhifang / Gogotsi, Yury / Huang, Qing

Science (New York, N.Y.)

2023 Volume 379, Issue 6637, Page(s) 1130–1135

Abstract: Intercalated layered materials offer distinctive properties and serve as precursors for important two-dimensional (2D) materials. However, intercalation of non-van der Waals structures, which can expand the family of 2D materials, is difficult. We report ...

Abstract	Intercalated layered materials offer distinctive properties and serve as precursors for important two-dimensional (2D) materials. However, intercalation of non-van der Waals structures, which can expand the family of 2D materials, is difficult. We report a structural editing protocol for layered carbides (MAX phases) and their 2D derivatives (MXenes). Gap-opening and species-intercalating stages were respectively mediated by chemical scissors and intercalants, which created a large family of MAX phases with unconventional elements and structures, as well as MXenes with versatile terminals. The removal of terminals in MXenes with metal scissors and then the stitching of 2D carbide nanosheets with atom intercalation leads to the reconstruction of MAX phases and a family of metal-intercalated 2D carbides, both of which may drive advances in fields ranging from energy to printed electronics.
Language	English
Publishing date	2023-03-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.add5901
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Author Correction: A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte.

Li, Youbing / Shao, Hui / Lin, Zifeng / Lu, Jun / Liu, Liyuan / Duployer, Benjamin / Persson, Per O Å / Eklund, Per / Hultman, Lars / Li, Mian / Chen, Ke / Zha, Xian-Hu / Du, Shiyu / Rozier, Patrick / Chai, Zhifang / Raymundo-Piñero, Encarnacion / Taberna, Pierre-Louis / Simon, Patrice / Huang, Qing

Nature materials

2021 Volume 20, Issue 4, Page(s) 571

Language	English
Publishing date	2021-01-18
Publishing country	England
Document type	Published Erratum
ZDB-ID	2088679-2
ISSN	1476-4660 ; 1476-1122
ISSN (online)	1476-4660
ISSN	1476-1122
DOI	10.1038/s41563-021-00925-4
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Chemical-scissor-mediated structural editing of layered transition metal carbides

Ding, Haoming / Li, Youbing / Li, Mian / Chen, Ke / Liang, Kun / Chen, Guoxin / Lu, Jun / Palisaitis, Justinas / Persson, Per O. A. / Eklund, Per / Hultman, Lars / Du, Shiyu / Chai, Zhifang / Gogotsi, Yury / Huang, Qing

2022

Abstract: Intercalation of non-van der Waals (vdW) layered materials can produce new 2D and 3D materials with unique properties, but it is difficult to achieve. Here, we describe a structural editing protocol for 3D non-vdW layered ternary carbides and nitrides ( ... ...

Abstract	Intercalation of non-van der Waals (vdW) layered materials can produce new 2D and 3D materials with unique properties, but it is difficult to achieve. Here, we describe a structural editing protocol for 3D non-vdW layered ternary carbides and nitrides (MAX phases) and their 2D vdW derivatives (MXenes). Gap-opening and species-intercalating stages were mediated by chemical scissors and guest intercalants, creating a large family of layered materials with unconventional elements and structures in MAX phases, as well as MXenes with versatile termination species. Removal of surface terminations by metal scissors and stitching of carbide layers by metal atoms leads to a reverse transformation from MXenes to MAX phases, and metal-intercalated 2D carbides. This scissor-mediated structural editing may enable structural and chemical tailoring of other layered ceramics.
Keywords	Condensed Matter - Materials Science
Publishing date	2022-07-28
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Electrochemical Lithium Storage Performance of Molten Salt Derived V

Li, Youbing / Ma, Guoliang / Shao, Hui / Xiao, Peng / Lu, Jun / Xu, Jin / Hou, Jinrong / Chen, Ke / Zhang, Xiao / Li, Mian / Persson, Per O Å / Hultman, Lars / Eklund, Per / Du, Shiyu / Chai, Zhifang / Huang, Zhengren / Jin, Na / Ma, Jiwei / Liu, Ying /

Lin, Zifeng / Huang, Qing

Nano-micro letters

2021 Volume 13, Issue 1, Page(s) 158

Abstract: MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage. Here, we report the preparation of ... ...

Abstract	MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage. Here, we report the preparation of V
Language	English
Publishing date	2021-07-22
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2642093-4
ISSN	2150-5551 ; 2150-5551
ISSN (online)	2150-5551
ISSN	2150-5551
DOI	10.1007/s40820-021-00684-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Multielemental single-atom-thick

Li, Youbing / Lu, Jun / Li, Mian / Chang, Keke / Zha, Xianhu / Zhang, Yiming / Chen, Ke / Persson, Per O Å / Hultman, Lars / Eklund, Per / Du, Shiyu / Francisco, Joseph S / Chai, Zhifang / Huang, Zhengren / Huang, Qing

Proceedings of the National Academy of Sciences of the United States of America

2019 Volume 117, Issue 2, Page(s) 820–825

Abstract: Tailoring of individual single-atom-thick layers in nanolaminated materials offers atomic-level control over material properties. Nonetheless, multielement alloying in individual atomic layers in nanolaminates is largely unexplored. Here, we report 15 ... ...

Abstract	Tailoring of individual single-atom-thick layers in nanolaminated materials offers atomic-level control over material properties. Nonetheless, multielement alloying in individual atomic layers in nanolaminates is largely unexplored. Here, we report 15 inherently nanolaminated V
Language	English
Publishing date	2019-12-26
Publishing country	United States
Document type	Journal Article
ZDB-ID	209104-5
ISSN	1091-6490 ; 0027-8424
ISSN (online)	1091-6490
ISSN	0027-8424
DOI	10.1073/pnas.1916256117
Database	MEDical Literature Analysis and Retrieval System OnLINE

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bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Element Replacement Approach by Reaction with Lewis Acidic Molten Salts to Synthesize Nanolaminated MAX Phases and MXenes.

Li, Mian / Lu, Jun / Luo, Kan / Li, Youbing / Chang, Keke / Chen, Ke / Zhou, Jie / Rosen, Johanna / Hultman, Lars / Eklund, Per / Persson, Per O Å / Du, Shiyu / Chai, Zhifang / Huang, Zhengren / Huang, Qing

Journal of the American Chemical Society

2019 Volume 141, Issue 11, Page(s) 4730–4737

Abstract: Nanolaminated materials are important because of their exceptional properties and wide range of applications. Here, we demonstrate a general approach to synthesizing a series of Zn-based MAX phases and Cl-terminated MXenes originating from the ... ...

Abstract	Nanolaminated materials are important because of their exceptional properties and wide range of applications. Here, we demonstrate a general approach to synthesizing a series of Zn-based MAX phases and Cl-terminated MXenes originating from the replacement reaction between the MAX phase and the late transition-metal halides. The approach is a top-down route that enables the late transitional element atom (Zn in the present case) to occupy the A site in the pre-existing MAX phase structure. Using this replacement reaction between the Zn element from molten ZnCl
Language	English
Publishing date	2019-03-07
Publishing country	United States
Document type	Journal Article
ZDB-ID	3155-0
ISSN	1520-5126 ; 0002-7863
ISSN (online)	1520-5126
ISSN	0002-7863
DOI	10.1021/jacs.9b00574
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Single-Atom-Thick Active Layers Realized in Nanolaminated Ti

Li, Youbing / Li, Mian / Lu, Jun / Ma, Baokai / Wang, Zhipan / Cheong, Ling-Zhi / Luo, Kan / Zha, Xianhu / Chen, Ke / Persson, Per O Å / Hultman, Lars / Eklund, Per / Shen, Cai / Wang, Qigang / Xue, Jianming / Du, Shiyu / Huang, Zhengren / Chai, Zhifang / Huang, Qing

ACS nano

2019 Volume 13, Issue 8, Page(s) 9198–9205

Abstract: ... A ... ...

Abstract	A Ti
Language	English
Publishing date	2019-07-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1936-086X
ISSN (online)	1936-086X
DOI	10.1021/acsnano.9b03530
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte.

Nature materials

2020 Volume 19, Issue 8, Page(s) 894–899

Abstract: Two-dimensional carbides and nitrides of transition metals, known as MXenes, are a fast-growing family of materials that have attracted attention as energy storage materials. MXenes are mainly prepared from Al-containing MAX phases (where A = Al) by Al ... ...

Abstract	Two-dimensional carbides and nitrides of transition metals, known as MXenes, are a fast-growing family of materials that have attracted attention as energy storage materials. MXenes are mainly prepared from Al-containing MAX phases (where A = Al) by Al dissolution in F-containing solution; most other MAX phases have not been explored. Here a redox-controlled A-site etching of MAX phases in Lewis acidic melts is proposed and validated by the synthesis of various MXenes from unconventional MAX-phase precursors with A elements Si, Zn and Ga. A negative electrode of Ti
Language	English
Publishing date	2020-04-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2088679-2
ISSN	1476-4660 ; 1476-1122
ISSN (online)	1476-4660
ISSN	1476-1122
DOI	10.1038/s41563-020-0657-0
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Near-Room-Temperature Ferromagnetic Behavior of Single-Atom-Thick 2D Iron in Nanolaminated Ternary MAX Phases

Li, Youbing / Liang, Jinghua / Ding, Haoming / Lu, Jun / Mu, Xulin / Yan, Pengfei / Zhang, Xiao / Chen, Ke / Li, Mian / Persson, Per O. A. / Hultman, Lars / Eklund, Per / Du, Shiyu / Yang, Hongxin / Chai, Zhifang / Huang, Qing

2021

Abstract: Two dimensional (2D) ferromagnetic materials have attracted much attention in the fields of condensed matter physics and materials science, but their synthesis is still a challenge given their limitations on structural stability and susceptibility to ... ...

Abstract	Two dimensional (2D) ferromagnetic materials have attracted much attention in the fields of condensed matter physics and materials science, but their synthesis is still a challenge given their limitations on structural stability and susceptibility to oxidization. MAX phases nanolaminated ternary carbides or nitrides possess a unique crystal structure in which single-atom-thick A sublayers are interleaved by two dimensional MX slabs, providing nanostructured templates for designing 2D ferromagnetic materials if the non-magnetic A sublayers can be substituted replaced by magnetic elements. Here, we report three new ternary magnetic MAX phases (Ta2FeC, Ti2FeN and Nb2FeC) with A sublayers of single-atom-thick 2D iron through an isomorphous replacement reaction of MAX precursors (Ta2AlC, Ti2AlN and Nb2AlC) with a Lewis acid salts (FeCl2). All these MAX phases exhibit ferromagnetic (FM) behavior. The Curie temperature (Tc) of Ta2FeC and Nb2FeC MAX phase are 281 K and 291 K, respectively, i.e. close to room temperature. The saturation magnetization of these ternary magnetic MAX phases is almost two orders of magnitude higher than that of V2(Sn,Fe)C MAX phase whose A-site is partial substituted by Fe. Theoretical calculations on magnetic orderings of spin moments of Fe atoms in these nanolaminated magnetic MAX phases reveal that the magnetism can be mainly ascribed to intralayer exchange interaction of the 2D Fe atomic layers. Owning to the richness in composition of MAX phases, there is a large compositional space for constructing functional single-atom-thick 2D layers in materials using these nanolaminated templates.
Keywords	Condensed Matter - Materials Science
Subject code	530
Publishing date	2021-05-13
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Element Replacement Approach by Reaction with Lewis Acidic Molten Salts to Synthesize Nanolaminated MAX Phases and MXenes

Li, Mian / Jun Lu / Kan Luo / Youbing Li / Keke Chang / Ke Chen / Jie Zhou / Johanna Rosen / Lars Hultman / Per Eklund / Per O. Å. Persson / Shiyu Du / Zhifang Chai / Zhengren Huang / Qing Huang

Journal of the American Chemical Society. 2019 Mar. 01, v. 141, no. 11

2019

Abstract	Nanolaminated materials are important because of their exceptional properties and wide range of applications. Here, we demonstrate a general approach to synthesizing a series of Zn-based MAX phases and Cl-terminated MXenes originating from the replacement reaction between the MAX phase and the late transition-metal halides. The approach is a top-down route that enables the late transitional element atom (Zn in the present case) to occupy the A site in the pre-existing MAX phase structure. Using this replacement reaction between the Zn element from molten ZnCl₂ and the Al element in MAX phase precursors (Ti₃AlC₂, Ti₂AlC, Ti₂AlN, and V₂AlC), novel MAX phases Ti₃ZnC₂, Ti₂ZnC, Ti₂ZnN, and V₂ZnC were synthesized. When employing excess ZnCl₂, Cl-terminated MXenes (such as Ti₃C₂Cl₂ and Ti₂CCl₂) were derived by a subsequent exfoliation of Ti₃ZnC₂ and Ti₂ZnC due to the strong Lewis acidity of molten ZnCl₂. These results indicate that A-site element replacement in traditional MAX phases by late transition-metal halides opens the door to explore MAX phases that are not thermodynamically stable at high temperature and would be difficult to synthesize through the commonly employed powder metallurgy approach. In addition, this is the first time that exclusively Cl-terminated MXenes were obtained, and the etching effect of Lewis acid in molten salts provides a green and viable route to preparing MXenes through an HF-free chemical approach.
Keywords	Lewis acids ; acidity ; aluminum ; metallurgy ; temperature ; thermodynamics ; zinc ; zinc chloride
Language	English
Dates of publication	2019-0301
Size	p. 4730-4737.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	3155-0
ISSN	1520-5126 ; 0002-7863
ISSN (online)	1520-5126
ISSN	0002-7863
DOI	10.1021/jacs.9b00574
Database	NAL-Catalogue (AGRICOLA)

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