TY - JOUR
T1 - Coordination polymer to atomically thin, holey, metal-oxide nanosheets for tuning band alignment
AU - Mofarah, Sajjad S.
AU - Adabifiroozjaei, Esmaeil
AU - Pardehkhorram, Raheleh
AU - Assadi, M. Hussein N.
AU - Hinterstein, Manuel
AU - Yao, Yin
AU - Liu, Xinhong
AU - Ghasemian, Mohammad B.
AU - Kalantar-Zadeh, Kourosh
AU - Mehmood, Rashid
AU - Cazorla, Claudio
AU - Shahmiri, Reza
AU - Bahmanrokh, Ghazaleh
AU - Bhattacharyya, Saroj
AU - Spadaro, Maria Chiara
AU - Arbiol, Jordi
AU - Lim, Sean
AU - Xu, Yuwen
AU - Arandiyan, Hamidreza
AU - Scott, Jason
AU - Koshy, Pramod
AU - Sorrell, Charles C.
PY - 2019/12/27
Y1 - 2019/12/27
N2 - 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.
AB - 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.
KW - 2D materials
KW - band alignment
KW - heterostructures
KW - holey nanosheets
KW - metal-based coordination polymers
UR - http://www.scopus.com/inward/record.url?scp=85074818418&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/DP170104130
U2 - 10.1002/adma.201905288
DO - 10.1002/adma.201905288
M3 - Article
C2 - 31693232
AN - SCOPUS:85074818418
SN - 0935-9648
VL - 31
JO - Advanced Materials
JF - Advanced Materials
IS - 52
M1 - 1905288
ER -