Nitrogen fixation. Part I. Electrochemical reduction of titanium compounds in the presence of catechol and N2 in MeOH or THF

James Y. Becker; Shlomit Avraham (Tsarfaty); Barry Posin

doi:10.1016/0022-0728(87)80138-9

Nitrogen fixation. Part I. Electrochemical reduction of titanium compounds in the presence of catechol and N₂ in MeOH or THF

James Y. Becker, Shlomit Avraham (Tsarfaty), Barry Posin

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

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Abstract

The cyclic voltammetry of Cp₂TiCl₂ was studied in both MeOH and THF, at either glassy carbon or platinum electrodes. The effect of catechol added, as a complexation agent, on the shape of the voltammograms is also described. Controlled potential electrolysis (CPE) was employed to reduce CP₂TiCl₂ under an N₂ atmosphere in the presence of catechol. Ammonia was formed in low chemical yields (up to 0.11%), but selectively. The reduction was also investigated in the presence of a base (MeONa) and divalent cation (Mg²⁺). The ammonia yield increased to 0.65% and 1.45%, respectively. Other titanium compounds ((acac)₂TiCl₂, (i-PrO)₄Ti, TiCl₄, TiCl₃) were reduced under similar conditions and found to be less efficient for N₂ reduction than Cp₂TiCl₂.

Original language	English
Pages (from-to)	143-153
Number of pages	11
Journal	Journal of Electroanalytical Chemistry
Volume	230
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(87)80138-9
State	Published - 25 Aug 1987

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

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@article{4b350e20ce1a48a9998ee9931c2360c8,

title = "Nitrogen fixation. Part I. Electrochemical reduction of titanium compounds in the presence of catechol and N2 in MeOH or THF",

abstract = "The cyclic voltammetry of Cp2TiCl2 was studied in both MeOH and THF, at either glassy carbon or platinum electrodes. The effect of catechol added, as a complexation agent, on the shape of the voltammograms is also described. Controlled potential electrolysis (CPE) was employed to reduce CP2TiCl2 under an N2 atmosphere in the presence of catechol. Ammonia was formed in low chemical yields (up to 0.11%), but selectively. The reduction was also investigated in the presence of a base (MeONa) and divalent cation (Mg2+). The ammonia yield increased to 0.65% and 1.45%, respectively. Other titanium compounds ((acac)2TiCl2, (i-PrO)4Ti, TiCl4, TiCl3) were reduced under similar conditions and found to be less efficient for N2 reduction than Cp2TiCl2.",

author = "Becker, {James Y.} and {Avraham (Tsarfaty)}, Shlomit and Barry Posin",

note = "Funding Information: The authors are grateful to the National Council for Research and Development (Israel) for supporting this work.",

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doi = "10.1016/0022-0728(87)80138-9",

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T1 - Nitrogen fixation. Part I. Electrochemical reduction of titanium compounds in the presence of catechol and N2 in MeOH or THF

AU - Becker, James Y.

AU - Avraham (Tsarfaty), Shlomit

AU - Posin, Barry

N1 - Funding Information: The authors are grateful to the National Council for Research and Development (Israel) for supporting this work.

PY - 1987/8/25

Y1 - 1987/8/25

N2 - The cyclic voltammetry of Cp2TiCl2 was studied in both MeOH and THF, at either glassy carbon or platinum electrodes. The effect of catechol added, as a complexation agent, on the shape of the voltammograms is also described. Controlled potential electrolysis (CPE) was employed to reduce CP2TiCl2 under an N2 atmosphere in the presence of catechol. Ammonia was formed in low chemical yields (up to 0.11%), but selectively. The reduction was also investigated in the presence of a base (MeONa) and divalent cation (Mg2+). The ammonia yield increased to 0.65% and 1.45%, respectively. Other titanium compounds ((acac)2TiCl2, (i-PrO)4Ti, TiCl4, TiCl3) were reduced under similar conditions and found to be less efficient for N2 reduction than Cp2TiCl2.

AB - The cyclic voltammetry of Cp2TiCl2 was studied in both MeOH and THF, at either glassy carbon or platinum electrodes. The effect of catechol added, as a complexation agent, on the shape of the voltammograms is also described. Controlled potential electrolysis (CPE) was employed to reduce CP2TiCl2 under an N2 atmosphere in the presence of catechol. Ammonia was formed in low chemical yields (up to 0.11%), but selectively. The reduction was also investigated in the presence of a base (MeONa) and divalent cation (Mg2+). The ammonia yield increased to 0.65% and 1.45%, respectively. Other titanium compounds ((acac)2TiCl2, (i-PrO)4Ti, TiCl4, TiCl3) were reduced under similar conditions and found to be less efficient for N2 reduction than Cp2TiCl2.

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Nitrogen fixation. Part I. Electrochemical reduction of titanium compounds in the presence of catechol and N₂ in MeOH or THF

Abstract

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