Preparation of 2D Molybdenum Phosphide via Surface-Confined Atomic Substitution

Wang, Wenbin1; Qi, Junlei1; Zhai, Li2; Ma, Chen3; Ke, Chengxuan4; Zhai, Wei2; Wu, Zongxiao1; Bao, Kai1; Yao, Yao2; Li, Siyuan2; Chen, Bo2; Repaka, D. V. Maheswar5; Zhang, Xiao6; Ye, Ruquan2,7; Lai, Zhuangchai8; Luo, Guangfu4,9; Chen, Ye3; He, Qiyuan1

2022-07-01

10.1002/adma.202203220

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

The emerging nonlayered 2D materials (NL2DMs) are sparking immense interest due to their fascinating physicochemical properties and enhanced performance in many applications. NL2DMs are particularly favored in catalytic applications owing to the extremely large surface area and low-coordinated surface atoms. However, the synthesis of NL2DMs is complex because their crystals are held together by strong isotropic covalent bonds. Here, nonlayered molybdenum phosphide (MoP) with well-defined 2D morphology is synthesized from layered molybdenum dichalcogenides via surface-confined atomic substitution. During the synthesis, the molybdenum dichalcogenide nanosheet functions as the host matrix where each layer of Mo maintains their hexagonal arrangement and forms isotropic covalent bonds with P that substitutes S, resulting in the conversion from layered van der Waals material to a covalently bonded NL2DM. The MoP nanosheets converted from few-layer MoS2 are single crystalline, while those converted from monolayers are amorphous. The converted MoP demonstrates metallic charge transport and desirable performance in the electrocatalytic hydrogen evolution reaction (HER). More importantly, in contrast to MoS2, which shows edge-dominated HER performance, the edge and basal plane of MoP deliver similar HER performance, which is correlated with theoretical calculations. This work provides a new synthetic strategy for high-quality nonlayered materials with well-defined 2D morphology for future exploration.

dangling bonds hydrogen evolution reaction molybdenum phosphide on-chip electrochemistry surface-confined atomic substitution

SCI ; EI

英语

NI论文

其他

City University of Hong Kong["9229079","9610482","7005468"] ; Research Grants Council["21302821","11314322"] ; Chinese University of Hong Kong Start-up Fund[4930977] ; Chinese University of Hong Kong Direct Grant for Research[4053444] ; National Natural Science Foundation of China[21905240] ; Guangdong Provincial Key Laboratory of Computational Science and Material Design[2019B030301001] ; Introduced Innovative R&D Team of Guangdong[2017ZT07C062] ; Shenzhen Science and Technology Innovation Committee[JCYJ20200109141412308] ; Accelerated Materials Development for Manufacturing Program at A*STAR via the AME Programmatic Fund by the Agency for Science, Technology, and Research[A1898b0043]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000831356200001

WILEY-V C H VERLAG GMBH

20223112464880

Atoms ; Electrocatalysis ; Exfoliation (materials science) ; Hydrogen bonds ; Layered semiconductors ; Molybdenum compounds ; Morphology ; Nanosheets ; Physicochemical properties ; Van der Waals forces

Semiconducting Materials:712.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong, Peoples R China
2.City Univ Hong Kong, Dept Chem, Kowloon, Hong Kong, Peoples R China
3.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
5.ASTAR, Inst Mat Res & Engn IMRE, Singapore 138632, Singapore
6.Hong Kong Polytech Univ, Dept Mech Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
7.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
8.Hong Kong Polytech Univ, Dept Appl Phys, Hung Hom, Kowloon, Hong Kong, Peoples R China
9.Southern Univ Sci & Technol, Guangdong Prov Key Lab Computat Sci & Mat Design, Shenzhen 518055, Peoples R China

Wang, Wenbin,Qi, Junlei,Zhai, Li,et al. Preparation of 2D Molybdenum Phosphide via Surface-Confined Atomic Substitution[J]. ADVANCED MATERIALS,2022,34.

Wang, Wenbin.,Qi, Junlei.,Zhai, Li.,Ma, Chen.,Ke, Chengxuan.,...&He, Qiyuan.(2022).Preparation of 2D Molybdenum Phosphide via Surface-Confined Atomic Substitution.ADVANCED MATERIALS,34.

Wang, Wenbin,et al."Preparation of 2D Molybdenum Phosphide via Surface-Confined Atomic Substitution".ADVANCED MATERIALS 34(2022).