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Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO5, and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries

Uchiyama, Hiroaki and Puthusseri, Dhanya and Grins, Jekabs and Gribble, Daniel and Seisenbaeva, Gulaim and Pol, Vilas G. and Kessler, Vadim (2021). Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO5, and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries. Inorganic Chemistry. 60 :6 , 3593-3603
[Research article]

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Abstract

Transition-metal oxide nanostructured materials are potentially attractive alternatives as anodes for Li ion batteries and as photocatalysts. Combining the structural and thermal stability of titanium oxides with the relatively high oxidation potential and charge capacity of molybdenum(VI) oxides was the motivation for a search for approaches to mixed oxides of these two metals. Challenges in traditional synthetic methods for such materials made development of a soft chemistry single-source precursor pathway our priority. A series of bimetallic Ti-Mo alkoxides were produced by reactions of homometallic species in a 1:1 ratio. Thermal solution reduction with subsequent reoxidation by dry air offered in minor yields Ti2Mo2O4(OMe)(6)((OPr)-Pr-i)(6) (1) by the interaction of Ti((OPr)-Pr-i)(4) with MoO-(OMe)(4) and Ti6Mo6O22((OPr)-Pr-i)(16)(iPrOH)(2) (2) by the reaction of Ti((OPr)-Pr-i)(4) with MoO((OPr)-Pr-i)(4). An attempt to improve the yield of 2 by microhydrolysis, using the addition of stoichiometric amounts of water, resulted in the formation with high yield of a different complex, Mo7Ti7+xO31+x((OPr)-Pr-i)(8+2x) (3). Controlled thermal decomposition of 1-3 in air resulted in their transformation into the phase TiMoO5 (4) with an orthorhombic structure in space group Pnma, as determined by a Rietveld refinement. The electrochemical characteristics of 4 and its chemical transformation on Li insertion were investigated, showing its potential as a promising anode material for Li ion batteries for the first time. A lower charge capacity and lower stability were observed for its application as an anode for a Na ion battery.

Authors/Creators:Uchiyama, Hiroaki and Puthusseri, Dhanya and Grins, Jekabs and Gribble, Daniel and Seisenbaeva, Gulaim and Pol, Vilas G. and Kessler, Vadim
Title:Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO5, and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries
Series Name/Journal:Inorganic Chemistry
Year of publishing :2021
Volume:60
Number:6
Page range:3593-3603
Number of Pages:11
Publisher:AMER CHEMICAL SOC
ISSN:0020-1669
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Inorganic Chemistry
URN:NBN:urn:nbn:se:slu:epsilon-p-111492
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111492
Additional ID:
Type of IDID
DOI10.1021/acs.inorgchem.0c03087
Web of Science (WoS)000630142600014
ID Code:27107
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:16 Feb 2022 16:26
Metadata Last Modified:16 Feb 2022 16:31

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