Determination of nitride ion electrochemically produced in a molten chloride system by ion chromatography

Katsuhito Takei; Nobuyuki Serizawa; Tokujiro Nishikiori; Yasuhiko Ito

doi:10.5796/electrochemistry.17-00092

Determination of nitride ion electrochemically produced in a molten chloride system by ion chromatography

Katsuhito Takei, Nobuyuki Serizawa, Tokujiro Nishikiori, Yasuhiko Ito

Department of Applied Chemistry

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

Abstract

The cathodic reduction of nitrogen (N₂) gas in molten chloride was investigated using a porous nickel (Ni) electrode. A LiCl-KCl-CsCl melt containing cathodically formed nitride ion (N^3-) was sampled from an electrolytic bath and analyzed quantitatively by ion chromatography. The current efficiency of the cathodic reaction calculated from the ratio of quantity of the produced N^3- was approximately 78% on average. The main reason why the measured efficiency did not reach 100% is considered as the amount of N^3- increased more in the pores of the gas electrode than in the bulk of the electrolytic bath.

Original language	English
Pages (from-to)	35-37
Number of pages	3
Journal	Electrochemistry
Volume	86
Issue number	2
DOIs	https://doi.org/10.5796/electrochemistry.17-00092
Publication status	Published - 2018

Keywords

Electrochemical ammonia synthesis
Ion chromatography
Molten salt
Nitride ion

ASJC Scopus subject areas

Electrochemistry

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10.5796/electrochemistry.17-00092

Cite this

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abstract = "The cathodic reduction of nitrogen (N2) gas in molten chloride was investigated using a porous nickel (Ni) electrode. A LiCl-KCl-CsCl melt containing cathodically formed nitride ion (N3-) was sampled from an electrolytic bath and analyzed quantitatively by ion chromatography. The current efficiency of the cathodic reaction calculated from the ratio of quantity of the produced N3- was approximately 78% on average. The main reason why the measured efficiency did not reach 100% is considered as the amount of N3- increased more in the pores of the gas electrode than in the bulk of the electrolytic bath.",

keywords = "Electrochemical ammonia synthesis, Ion chromatography, Molten salt, Nitride ion",

author = "Katsuhito Takei and Nobuyuki Serizawa and Tokujiro Nishikiori and Yasuhiko Ito",

note = "Funding Information: This study was conducted under contract with New Energy and Industrial Technology Development Organization (NEDO) for a Japanese national project of hydrogen leading technology R&D program. Publisher Copyright: {\textcopyright} 2018 The Electrochemical Society of Japan, All rights reserved.",

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doi = "10.5796/electrochemistry.17-00092",

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T1 - Determination of nitride ion electrochemically produced in a molten chloride system by ion chromatography

AU - Takei, Katsuhito

AU - Serizawa, Nobuyuki

AU - Nishikiori, Tokujiro

AU - Ito, Yasuhiko

N1 - Funding Information: This study was conducted under contract with New Energy and Industrial Technology Development Organization (NEDO) for a Japanese national project of hydrogen leading technology R&D program. Publisher Copyright: © 2018 The Electrochemical Society of Japan, All rights reserved.

PY - 2018

Y1 - 2018

N2 - The cathodic reduction of nitrogen (N2) gas in molten chloride was investigated using a porous nickel (Ni) electrode. A LiCl-KCl-CsCl melt containing cathodically formed nitride ion (N3-) was sampled from an electrolytic bath and analyzed quantitatively by ion chromatography. The current efficiency of the cathodic reaction calculated from the ratio of quantity of the produced N3- was approximately 78% on average. The main reason why the measured efficiency did not reach 100% is considered as the amount of N3- increased more in the pores of the gas electrode than in the bulk of the electrolytic bath.

AB - The cathodic reduction of nitrogen (N2) gas in molten chloride was investigated using a porous nickel (Ni) electrode. A LiCl-KCl-CsCl melt containing cathodically formed nitride ion (N3-) was sampled from an electrolytic bath and analyzed quantitatively by ion chromatography. The current efficiency of the cathodic reaction calculated from the ratio of quantity of the produced N3- was approximately 78% on average. The main reason why the measured efficiency did not reach 100% is considered as the amount of N3- increased more in the pores of the gas electrode than in the bulk of the electrolytic bath.

KW - Electrochemical ammonia synthesis

KW - Ion chromatography

KW - Molten salt

KW - Nitride ion

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Determination of nitride ion electrochemically produced in a molten chloride system by ion chromatography

Abstract

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