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Electrochemical Synthesis of Ammonia Based on a Perovskite LaCrO3 Catalyst

Ohrelius, Mathilda ; Guo, Haoran ; Xian, Haohong ; Yu, Guangsen ; Alshehri, Abdulmohsen Ali ; Alzahrani, Khalid Ahmad ; Li, Tingshuai and Andersson, Martin LU (2020) In ChemCatChem 12(3). p.731-735
Abstract

Electrochemical synthesis of ammonia through the nitrogen reduction reaction (NRR) has the possibility to revolutionize our production of ammonia and to save our planet from both emissions and large energy consumption. In this study, a perovskite structured lanthanum chromite catalyst (LaCrO3) is synthesized, characterized as well as electrochemically evaluated for NRR. The highest ammonia yield is obtained at −0.8 V vs. reversible hydrogen electrode with an ammonia formation rate of 24.8 μg h−1 mg−1 cat, and a Faradaic efficiency of 15 %. Material calculation further confirms the possible mechanism of ammonia formation with the aid of LaCrO3 catalyst. The resulting conclusion... (More)

Electrochemical synthesis of ammonia through the nitrogen reduction reaction (NRR) has the possibility to revolutionize our production of ammonia and to save our planet from both emissions and large energy consumption. In this study, a perovskite structured lanthanum chromite catalyst (LaCrO3) is synthesized, characterized as well as electrochemically evaluated for NRR. The highest ammonia yield is obtained at −0.8 V vs. reversible hydrogen electrode with an ammonia formation rate of 24.8 μg h−1 mg−1 cat, and a Faradaic efficiency of 15 %. Material calculation further confirms the possible mechanism of ammonia formation with the aid of LaCrO3 catalyst. The resulting conclusion offers a great alternative with the easily produced and low-cost perovskite structured electrocatalysts for ammonia production.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ammonia, Faradaic efficiency, Nitrogen reduction reaction, Perovskite
in
ChemCatChem
volume
12
issue
3
pages
5 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85075429044
ISSN
1867-3880
DOI
10.1002/cctc.201901818
language
English
LU publication?
yes
id
c0e15ecc-fa52-4957-a21e-387fa0f195f2
date added to LUP
2019-12-04 20:53:44
date last changed
2022-04-18 19:07:12
@article{c0e15ecc-fa52-4957-a21e-387fa0f195f2,
  abstract     = {{<p>Electrochemical synthesis of ammonia through the nitrogen reduction reaction (NRR) has the possibility to revolutionize our production of ammonia and to save our planet from both emissions and large energy consumption. In this study, a perovskite structured lanthanum chromite catalyst (LaCrO<sub>3</sub>) is synthesized, characterized as well as electrochemically evaluated for NRR. The highest ammonia yield is obtained at −0.8 V vs. reversible hydrogen electrode with an ammonia formation rate of 24.8 μg h<sup>−1</sup> mg<sup>−1</sup> <sub>cat</sub>, and a Faradaic efficiency of 15 %. Material calculation further confirms the possible mechanism of ammonia formation with the aid of LaCrO<sub>3</sub> catalyst. The resulting conclusion offers a great alternative with the easily produced and low-cost perovskite structured electrocatalysts for ammonia production.</p>}},
  author       = {{Ohrelius, Mathilda and Guo, Haoran and Xian, Haohong and Yu, Guangsen and Alshehri, Abdulmohsen Ali and Alzahrani, Khalid Ahmad and Li, Tingshuai and Andersson, Martin}},
  issn         = {{1867-3880}},
  keywords     = {{Ammonia; Faradaic efficiency; Nitrogen reduction reaction; Perovskite}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{3}},
  pages        = {{731--735}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{ChemCatChem}},
  title        = {{Electrochemical Synthesis of Ammonia Based on a Perovskite LaCrO<sub>3</sub> Catalyst}},
  url          = {{http://dx.doi.org/10.1002/cctc.201901818}},
  doi          = {{10.1002/cctc.201901818}},
  volume       = {{12}},
  year         = {{2020}},
}