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Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries
[Image: see text] 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 molybd...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023665/ https://www.ncbi.nlm.nih.gov/pubmed/33615790 http://dx.doi.org/10.1021/acs.inorgchem.0c03087 |
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author | Uchiyama, Hiroaki Puthusseri, Dhanya Grins, Jekabs Gribble, Daniel Seisenbaeva, Gulaim A. Pol, Vilas G. Kessler, Vadim G. |
author_facet | Uchiyama, Hiroaki Puthusseri, Dhanya Grins, Jekabs Gribble, Daniel Seisenbaeva, Gulaim A. Pol, Vilas G. Kessler, Vadim G. |
author_sort | Uchiyama, Hiroaki |
collection | PubMed |
description | [Image: see text] 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 Ti(2)Mo(2)O(4)(OMe)(6)(O(i)Pr)(6) (1) by the interaction of Ti(O(i)Pr)(4) with MoO(OMe)(4) and Ti(6)Mo(6)O(22)(O(i)Pr)(16)(iPrOH)(2) (2) by the reaction of Ti(O(i)Pr)(4) with MoO(O(i)Pr)(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, Mo(7)Ti(7+x)O(31+x)(O(i)Pr)(8+2x) (3). Controlled thermal decomposition of 1–3 in air resulted in their transformation into the phase TiMoO(5) (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. |
format | Online Article Text |
id | pubmed-8023665 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-80236652021-04-07 Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries Uchiyama, Hiroaki Puthusseri, Dhanya Grins, Jekabs Gribble, Daniel Seisenbaeva, Gulaim A. Pol, Vilas G. Kessler, Vadim G. Inorg Chem [Image: see text] 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 Ti(2)Mo(2)O(4)(OMe)(6)(O(i)Pr)(6) (1) by the interaction of Ti(O(i)Pr)(4) with MoO(OMe)(4) and Ti(6)Mo(6)O(22)(O(i)Pr)(16)(iPrOH)(2) (2) by the reaction of Ti(O(i)Pr)(4) with MoO(O(i)Pr)(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, Mo(7)Ti(7+x)O(31+x)(O(i)Pr)(8+2x) (3). Controlled thermal decomposition of 1–3 in air resulted in their transformation into the phase TiMoO(5) (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. American Chemical Society 2021-02-22 2021-03-15 /pmc/articles/PMC8023665/ /pubmed/33615790 http://dx.doi.org/10.1021/acs.inorgchem.0c03087 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Uchiyama, Hiroaki Puthusseri, Dhanya Grins, Jekabs Gribble, Daniel Seisenbaeva, Gulaim A. Pol, Vilas G. Kessler, Vadim G. Single-Source Alkoxide Precursor Approach to Titanium Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties, and Potential as an Anode Material for Alkali Metal Ion Batteries |
title | Single-Source Alkoxide Precursor Approach to Titanium
Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties,
and Potential as an Anode Material for Alkali Metal Ion Batteries |
title_full | Single-Source Alkoxide Precursor Approach to Titanium
Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties,
and Potential as an Anode Material for Alkali Metal Ion Batteries |
title_fullStr | Single-Source Alkoxide Precursor Approach to Titanium
Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties,
and Potential as an Anode Material for Alkali Metal Ion Batteries |
title_full_unstemmed | Single-Source Alkoxide Precursor Approach to Titanium
Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties,
and Potential as an Anode Material for Alkali Metal Ion Batteries |
title_short | Single-Source Alkoxide Precursor Approach to Titanium
Molybdate, TiMoO(5), and Its Structure, Electrochemical Properties,
and Potential as an Anode Material for Alkali Metal Ion Batteries |
title_sort | single-source alkoxide precursor approach to titanium
molybdate, timoo(5), and its structure, electrochemical properties,
and potential as an anode material for alkali metal ion batteries |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023665/ https://www.ncbi.nlm.nih.gov/pubmed/33615790 http://dx.doi.org/10.1021/acs.inorgchem.0c03087 |
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