A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides

A. Manthiram; Y. T. Zhu; A. Dananjay

doi:10.1557/proc-346-69

A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides

A. Manthiram
, Y. T. Zhu
, A. Dananjay

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

Reduction of aqueous solutions of tungstates, molybdates or vanadates by aqueous alkali metal borohydrides at ambient-temperature results in a formation of dark colored gel. The gel is amorphous to X-ray diffraction and crystallizes sharply at around 300-500 °C to yield reduced transition metal oxides such as the oxide bronzes, Na_xM_yO_z, or the binary oxides, MO₂ (M = V, Mo or W). The nature and composition of the products formed are strongly influenced by the reaction conditions such as the reaction pH as well as the concentration and amount of the reagents. Experimental procedures to obtain the different phases are presented. This novel low-temperature approach has a potential to access new metastable phases.

Original language	English
Title of host publication	Proceedings of MRS Meetings
Subtitle of host publication	Symposium N – Better Ceramics Through Chemistry VI
Publisher	Cambridge University Press
Pages	69-74
Volume	346
DOIs	https://doi.org/10.1557/proc-346-69
Publication status	Published - Apr 1994
Externally published	Yes
Event	1994 MRS Spring Meeting - San Francisco, California , United States Duration: 4 Apr 1994 → 8 Apr 1994

Publication series

Name	Materials Research Society Symposium - Proceedings
Publisher	Materials Research Society
ISSN (Print)	0272-9172

Conference

Conference	1994 MRS Spring Meeting
Place	United States
City	San Francisco, California
Period	4/04/94 → 8/04/94

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@inproceedings{0c63520b870f4a5a924345ad8ee59c8d,

title = "A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides",

abstract = "Reduction of aqueous solutions of tungstates, molybdates or vanadates by aqueous alkali metal borohydrides at ambient-temperature results in a formation of dark colored gel. The gel is amorphous to X-ray diffraction and crystallizes sharply at around 300-500 °C to yield reduced transition metal oxides such as the oxide bronzes, NaxMyOz, or the binary oxides, MO2 (M = V, Mo or W). The nature and composition of the products formed are strongly influenced by the reaction conditions such as the reaction pH as well as the concentration and amount of the reagents. Experimental procedures to obtain the different phases are presented. This novel low-temperature approach has a potential to access new metastable phases.",

author = "A. Manthiram and Zhu, \{Y. T.\} and A. Dananjay",

year = "1994",

month = apr,

doi = "10.1557/proc-346-69",

language = "English",

volume = "346",

series = "Materials Research Society Symposium - Proceedings",

publisher = "Cambridge University Press",

pages = "69--74",

booktitle = "Proceedings of MRS Meetings",

address = "United Kingdom",

note = "1994 MRS Spring Meeting ; Conference date: 04-04-1994 Through 08-04-1994",

}

Manthiram, A, Zhu, YT & Dananjay, A 1994, A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides. in Proceedings of MRS Meetings: Symposium N – Better Ceramics Through Chemistry VI. vol. 346, Materials Research Society Symposium - Proceedings, Cambridge University Press, pp. 69-74, 1994 MRS Spring Meeting, San Francisco, California , United States, 4/04/94. https://doi.org/10.1557/proc-346-69

A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides. / Manthiram, A.; Zhu, Y. T.; Dananjay, A.
Proceedings of MRS Meetings: Symposium N – Better Ceramics Through Chemistry VI. Vol. 346 Cambridge University Press, 1994. p. 69-74 (Materials Research Society Symposium - Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides

AU - Manthiram, A.

AU - Zhu, Y. T.

AU - Dananjay, A.

PY - 1994/4

Y1 - 1994/4

N2 - Reduction of aqueous solutions of tungstates, molybdates or vanadates by aqueous alkali metal borohydrides at ambient-temperature results in a formation of dark colored gel. The gel is amorphous to X-ray diffraction and crystallizes sharply at around 300-500 °C to yield reduced transition metal oxides such as the oxide bronzes, NaxMyOz, or the binary oxides, MO2 (M = V, Mo or W). The nature and composition of the products formed are strongly influenced by the reaction conditions such as the reaction pH as well as the concentration and amount of the reagents. Experimental procedures to obtain the different phases are presented. This novel low-temperature approach has a potential to access new metastable phases.

AB - Reduction of aqueous solutions of tungstates, molybdates or vanadates by aqueous alkali metal borohydrides at ambient-temperature results in a formation of dark colored gel. The gel is amorphous to X-ray diffraction and crystallizes sharply at around 300-500 °C to yield reduced transition metal oxides such as the oxide bronzes, NaxMyOz, or the binary oxides, MO2 (M = V, Mo or W). The nature and composition of the products formed are strongly influenced by the reaction conditions such as the reaction pH as well as the concentration and amount of the reagents. Experimental procedures to obtain the different phases are presented. This novel low-temperature approach has a potential to access new metastable phases.

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U2 - 10.1557/proc-346-69

DO - 10.1557/proc-346-69

M3 - RGC 32 - Refereed conference paper (with host publication)

VL - 346

T3 - Materials Research Society Symposium - Proceedings

SP - 69

EP - 74

BT - Proceedings of MRS Meetings

PB - Cambridge University Press

T2 - 1994 MRS Spring Meeting

Y2 - 4 April 1994 through 8 April 1994

ER -

A New Route for The Synthesis of Reduced Transition Metal Oxides Using Borohydrides

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