Atomically precise vanadium-oxide clusters.

Sourav Chakraborty,Eric Schreiber,Ellen M Matson,Brittney E Petel

doi:10.1039/d0na00877j

Sourav Chakraborty, Eric Schreiber + Show 2 more

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https://doi.org/10.1039/d0na00877j

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Journal: Nanoscale Advances	Publication Date: Jan 1, 2021
Citations: 40	License type: CC BY 3.0

Affiliation: University of Rochester, St Vincent Hospital

Abstract

Polyoxovanadate (POV) clusters are an important subclass of polyoxometalates with a broad range of molecular compositions and physicochemical properties. One relatively underdeveloped application of these polynuclear assemblies involves their use as atomically precise, homogenous molecular models for bulk metal oxides. Given the structural and electronic similarities of POVs and extended vanadium oxide materials, as well as the relative ease of modifying the homogenous congeners, investigation of the chemical and physical properties of pristine and modified cluster complexes presents a method toward understanding the influence of structural modifications (e.g. crystal structure/phase, chemical makeup of surface ligands, elemental dopants) on the properties of extended solids. This review summarises recent advances in the use of POV clusters as atomically precise models for bulk metal oxides, with particular focus on the assembly of vanadium oxide clusters and the consequences of altering the molecular composition of the assembly via organofunctionalization and the incorporation of elemental “dopants”.

Highlights

Vanadium oxides (e.g. V2O5, V2O3, VO2, etc.) represent an important subclass within reducible metal oxide (RMO) materials that are used in a wide variety of applications including electrical and optical devices, smart windows, and batteries, and as heterogenous catalysts for the activation of environmental contaminants and organic substrates.[1,2,3,4,5,6] The widespread application of these materials is mainly credited to the range of oxidation states accessible by vanadium (e.g. VII / VV) and its rich structural diversity, which has resulted in the isolation of an array of materials with distinct chemical properties
Given the structural and electronic similarities of POVs and extended vanadium oxide materials, as well as the relative ease of modifying the homogenous congeners, investigation of the chemical and physical properties of pristine and modified cluster complexes presents a method toward understanding the influence of structural modifications on the properties of extended solids
This review summarises recent advances in the use of POV clusters as atomically precise models for bulk metal oxides, with particular focus on the assembly of vanadium oxide clusters and the consequences of altering the molecular composition of the assembly via organofunctionalization and the incorporation of elemental “dopants”

Summary

Introduction

Vanadium oxides (e.g. V2O5, V2O3, VO2, etc.) represent an important subclass within reducible metal oxide (RMO) materials that are used in a wide variety of applications including electrical and optical devices, smart windows, and batteries, and as heterogenous catalysts for the activation of environmental contaminants and organic substrates.[1,2,3,4,5,6] The widespread application of these materials is mainly credited to the range of oxidation states accessible by vanadium (e.g. VII / VV) and its rich structural diversity, which has resulted in the isolation of an array of materials with distinct chemical properties. Given the widespread application of these materials, various analytical techniques have been used to analyse the structural, electronic, and optical properties of VxOy.[2,11,12,13] For example, X-

Methods

Conclusion