Coordination Polymer to Atomically Thin, Holey, Metal‐Oxide Nanosheets for Tuning Band Alignment

Holey 2D metal oxides have shown great promise as functional materials for energy storage and catalysts. Despite impressive performance, their processing is challenged by the requirement of templates plus capping agents or high temperatures; these materials also exhibit excessive thicknesses and low...

Full description

Saved in:
Bibliographic Details
Published in:Advanced materials (Weinheim) 2019-12, Vol.31 (52), p.e1905288-n/a
Main Authors: Mofarah, Sajjad S., Adabifiroozjaei, Esmaeil, Pardehkhorram, Raheleh, Assadi, M. Hussein N., Hinterstein, Manuel, Yao, Yin, Liu, Xinhong, Ghasemian, Mohammad B., Kalantar‐Zadeh, Kourosh, Mehmood, Rashid, Cazorla, Claudio, Shahmiri, Reza, Bahmanrokh, Ghazaleh, Bhattacharyya, Saroj, Spadaro, Maria Chiara, Arbiol, Jordi, Lim, Sean, Xu, Yuwen, Arandiyan, Hamidreza, Scott, Jason, Koshy, Pramod, Sorrell, Charles C.
Format: Article
Language:English
Subjects:
2D materials
Aqueous solutions
band alignment
Coordination polymers
Energy storage
Functional materials
heterostructures
holey nanosheets
Materials science
Metal oxides
metal‐based coordination polymers
Nanosheets
Room temperature
Synthesis
Thickness
Titanium
Transition metals
Zirconium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Holey 2D metal oxides have shown great promise as functional materials for energy storage and catalysts. Despite impressive performance, their processing is challenged by the requirement of templates plus capping agents or high temperatures; these materials also exhibit excessive thicknesses and low yields. The present work reports a metal‐based coordination polymer (MCP) strategy to synthesize polycrystalline, holey, metal oxide (MO) nanosheets with thicknesses as low as two‐unit cells. The process involves rapid exfoliation of bulk‐layered, MCPs (Ce‐, Ti‐, Zr‐based) into atomically thin MCPs at room temperature, followed by transformation into holey 2D MOs upon the removal of organic linkers in aqueous solution. Further, this work represents an extra step for decorating the holey nanosheets using precursors of transition metals to engineer their band alignments, establishing a route to optimize their photocatalysis. The work introduces a simple, high‐yield, room‐temperature, and template‐free approach to synthesize ultrathin holey nanosheets with high‐level functionalities. A new global strategy for the synthesis of extremely thin nanosheets (two atomic layers) with holey architectures using metal‐based coordination polymers is reported. The technique is versatile, simple, high yield, room temperature, and template‐free. These unique nanostructures offer high levels of functionalities, potentially enabling numerous energy, and environmental applications.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201905288