Manganese carbonate as an efficient electrocatalyst for the conversion of ammonia (NH4+/NH3) to dinitrogen

Iranna Udachyan; Jayesh T. Bhanushali; Amir Mizrahi; Tomer Zidki; Dan Meyerstein

doi:10.1039/d3se00681f

Manganese carbonate as an efficient electrocatalyst for the conversion of ammonia (NH₄⁺/NH₃) to dinitrogen

Iranna Udachyan, Jayesh T. Bhanushali, Amir Mizrahi, Tomer Zidki, Dan Meyerstein

Department of Chemistry

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

Abstract

Energy generation from a sustainable renewable source is seen as an imperative tool to meet the energy demand of the present day. Moreover, obtaining clean energy fuel e.g., H₂ is the need of the hour and hence, oxidation of ammonia might be a solution to this milestone. Mn₂(CO₃)₃ deposited electrochemically on the surface of a Pd electrode is a good electrocatalyst for the oxidation of ammonia (AOR) to dinitrogen. The AOR occurs in solutions containing Na₂CO₃ and NH₄OH as electrolytes. The Mn₂(CO₃)₃/Pd electrode in 0.5 M NH₄OH & 1.0 M Na₂CO₃ has a high electrocatalytic oxidation current density of 6.4 mA cm⁻² at anodic potential of 1.16 V vs. NHE. Chronoamperometric experiments, for the durability test, point out that Mn₂(CO₃)₃ is stable for over 4 h towards the ammonia oxidation reaction. Also, on careful investigation of the products formed upon oxidation of ammonia, only nitrogen as a product was observed.

Original language	English
Pages (from-to)	4088-4093
Number of pages	6
Journal	Sustainable Energy and Fuels
Volume	7
Issue number	17
DOIs	https://doi.org/10.1039/d3se00681f
State	Published - 10 Jul 2023

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/d3se00681f

Cite this

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title = "Manganese carbonate as an efficient electrocatalyst for the conversion of ammonia (NH4+/NH3) to dinitrogen",

abstract = "Energy generation from a sustainable renewable source is seen as an imperative tool to meet the energy demand of the present day. Moreover, obtaining clean energy fuel e.g., H2 is the need of the hour and hence, oxidation of ammonia might be a solution to this milestone. Mn2(CO3)3 deposited electrochemically on the surface of a Pd electrode is a good electrocatalyst for the oxidation of ammonia (AOR) to dinitrogen. The AOR occurs in solutions containing Na2CO3 and NH4OH as electrolytes. The Mn2(CO3)3/Pd electrode in 0.5 M NH4OH & 1.0 M Na2CO3 has a high electrocatalytic oxidation current density of 6.4 mA cm−2 at anodic potential of 1.16 V vs. NHE. Chronoamperometric experiments, for the durability test, point out that Mn2(CO3)3 is stable for over 4 h towards the ammonia oxidation reaction. Also, on careful investigation of the products formed upon oxidation of ammonia, only nitrogen as a product was observed.",

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T1 - Manganese carbonate as an efficient electrocatalyst for the conversion of ammonia (NH4+/NH3) to dinitrogen

AU - Udachyan, Iranna

AU - Bhanushali, Jayesh T.

AU - Mizrahi, Amir

AU - Zidki, Tomer

AU - Meyerstein, Dan

PY - 2023/7/10

Y1 - 2023/7/10

N2 - Energy generation from a sustainable renewable source is seen as an imperative tool to meet the energy demand of the present day. Moreover, obtaining clean energy fuel e.g., H2 is the need of the hour and hence, oxidation of ammonia might be a solution to this milestone. Mn2(CO3)3 deposited electrochemically on the surface of a Pd electrode is a good electrocatalyst for the oxidation of ammonia (AOR) to dinitrogen. The AOR occurs in solutions containing Na2CO3 and NH4OH as electrolytes. The Mn2(CO3)3/Pd electrode in 0.5 M NH4OH & 1.0 M Na2CO3 has a high electrocatalytic oxidation current density of 6.4 mA cm−2 at anodic potential of 1.16 V vs. NHE. Chronoamperometric experiments, for the durability test, point out that Mn2(CO3)3 is stable for over 4 h towards the ammonia oxidation reaction. Also, on careful investigation of the products formed upon oxidation of ammonia, only nitrogen as a product was observed.

AB - Energy generation from a sustainable renewable source is seen as an imperative tool to meet the energy demand of the present day. Moreover, obtaining clean energy fuel e.g., H2 is the need of the hour and hence, oxidation of ammonia might be a solution to this milestone. Mn2(CO3)3 deposited electrochemically on the surface of a Pd electrode is a good electrocatalyst for the oxidation of ammonia (AOR) to dinitrogen. The AOR occurs in solutions containing Na2CO3 and NH4OH as electrolytes. The Mn2(CO3)3/Pd electrode in 0.5 M NH4OH & 1.0 M Na2CO3 has a high electrocatalytic oxidation current density of 6.4 mA cm−2 at anodic potential of 1.16 V vs. NHE. Chronoamperometric experiments, for the durability test, point out that Mn2(CO3)3 is stable for over 4 h towards the ammonia oxidation reaction. Also, on careful investigation of the products formed upon oxidation of ammonia, only nitrogen as a product was observed.

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