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ID 50469
creator
Yamaguchi, Toshiro
Shinzato, Keita
Yamamoto, Kyohei
Wang, Yongming
Nakagawa, Yuki
Isobe, Shigehito
Ichikawa, Tomoyuki
subject
Ammonia
Lithium alloy
Catalytic process
Nitrogen
Hydrogen
abstract
In this work, nitrogenation, ammonia generation, regeneration reactions of lithium-tin alloy is investigated as pseudo catalytic process of ammonia synthesis. Li17Sn4 synthesized by thermochemical method at 500 °C can react with 0.1 MPa of N2 below 400 °C. Nano or amorphous lithium nitride would be formed by the nitrogenation. By reaction of the nitrogenated samples and H2, ammonia is generated at 300 °C under 0.1 MPa. The initial alloy phase Li17Sn4 is regenerated below 350 °C from the products after the ammonia generation process. Based on the above three step process, ammonia can be pseudo-catalytically synthesized from N2 and H2 below 400 °C under ambient pressure. Furthermore, the reactivity for the ammonia synthesis using Li–Sn alloy is preserved during the NH3 synthesis cycles due to the characteristic reaction process based on the Li extraction and insertion.
description
This work was supported by JSPS KAKENHI, Grant-in-Aid for Scientific Research (B), Grant Number JP17H03417.
journal title
International Journal of Hydrogen Energy
volume
Volume 45
issue
Issue 11
start page
6806
end page
6812
date of issued
2020-02-28
publisher
International Association for Hydrogen Energy
Elsevier
issn
0360-3199
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
rights
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
relation url
department
Natural Science Center for Basic Research and Development
Graduate School of Integrated Arts and Sciences
note
The full-text file will be made open to the public on 28 Feb 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'