Cargando…

Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure

Hydrogen has become an indispensable aspect of sustainable energy resources due to depleting fossil fuels and increasing pollution. Since hydrogen storage and transport is a major hindrance to expanding its applicability, green ammonia produced by electrochemical method is sourced as an efficient hy...

Descripción completa

Detalles Bibliográficos
Autores principales: An, Tae-Yong, Surendran, Subramani, Jesudass, Sebastian Cyril, Lee, Hyunjung, Moon, Dae Jun, Kim, Jung Kyu, Sim, Uk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9980907/
https://www.ncbi.nlm.nih.gov/pubmed/36874069
http://dx.doi.org/10.3389/fchem.2023.1122150
_version_ 1784899993026428928
author An, Tae-Yong
Surendran, Subramani
Jesudass, Sebastian Cyril
Lee, Hyunjung
Moon, Dae Jun
Kim, Jung Kyu
Sim, Uk
author_facet An, Tae-Yong
Surendran, Subramani
Jesudass, Sebastian Cyril
Lee, Hyunjung
Moon, Dae Jun
Kim, Jung Kyu
Sim, Uk
author_sort An, Tae-Yong
collection PubMed
description Hydrogen has become an indispensable aspect of sustainable energy resources due to depleting fossil fuels and increasing pollution. Since hydrogen storage and transport is a major hindrance to expanding its applicability, green ammonia produced by electrochemical method is sourced as an efficient hydrogen carrier. Several heterostructured electrocatalysts are designed to achieve significantly higher electrocatalytic nitrogen reduction (NRR) activity for electrochemical ammonia production. In this study, we controlled the nitrogen reduction performances of Mo(2)C-Mo(2)N heterostructure electrocatalyst prepared by a simple one pot synthesis method. The prepared Mo(2)C-Mo(2)N(0.92) heterostructure nanocomposites show clear phase formation for Mo(2)C and Mo(2)N(0.92), respectively. The prepared Mo(2)C-Mo(2)N(0.92) electrocatalysts deliver a maximum ammonia yield of about 9.6 μg h(-1) cm(-2) and a Faradaic efficiency (FE) of about 10.15%. The study reveals the improved nitrogen reduction performances of Mo(2)C-Mo(2)N(0.92) electrocatalysts due to the combined activity of the Mo(2)C and Mo(2)N(0.92) phases. In addition, the ammonia production from Mo(2)C-Mo(2)N(0.92) electrocatalysts is intended by the associative nitrogen reduction mechanism on Mo(2)C phase and by Mars-van-Krevelen mechanism on Mo(2)N(0.92) phase, respectively. This study suggests the importance of precisely tuning the electrocatalyst by heterostructure strategy to substantially achieve higher nitrogen reduction electrocatalytic activity.
format Online
Article
Text
id pubmed-9980907
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-99809072023-03-03 Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure An, Tae-Yong Surendran, Subramani Jesudass, Sebastian Cyril Lee, Hyunjung Moon, Dae Jun Kim, Jung Kyu Sim, Uk Front Chem Chemistry Hydrogen has become an indispensable aspect of sustainable energy resources due to depleting fossil fuels and increasing pollution. Since hydrogen storage and transport is a major hindrance to expanding its applicability, green ammonia produced by electrochemical method is sourced as an efficient hydrogen carrier. Several heterostructured electrocatalysts are designed to achieve significantly higher electrocatalytic nitrogen reduction (NRR) activity for electrochemical ammonia production. In this study, we controlled the nitrogen reduction performances of Mo(2)C-Mo(2)N heterostructure electrocatalyst prepared by a simple one pot synthesis method. The prepared Mo(2)C-Mo(2)N(0.92) heterostructure nanocomposites show clear phase formation for Mo(2)C and Mo(2)N(0.92), respectively. The prepared Mo(2)C-Mo(2)N(0.92) electrocatalysts deliver a maximum ammonia yield of about 9.6 μg h(-1) cm(-2) and a Faradaic efficiency (FE) of about 10.15%. The study reveals the improved nitrogen reduction performances of Mo(2)C-Mo(2)N(0.92) electrocatalysts due to the combined activity of the Mo(2)C and Mo(2)N(0.92) phases. In addition, the ammonia production from Mo(2)C-Mo(2)N(0.92) electrocatalysts is intended by the associative nitrogen reduction mechanism on Mo(2)C phase and by Mars-van-Krevelen mechanism on Mo(2)N(0.92) phase, respectively. This study suggests the importance of precisely tuning the electrocatalyst by heterostructure strategy to substantially achieve higher nitrogen reduction electrocatalytic activity. Frontiers Media S.A. 2023-02-16 /pmc/articles/PMC9980907/ /pubmed/36874069 http://dx.doi.org/10.3389/fchem.2023.1122150 Text en Copyright © 2023 An, Surendran, Jesudass, Lee, Moon, Kim and Sim. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
An, Tae-Yong
Surendran, Subramani
Jesudass, Sebastian Cyril
Lee, Hyunjung
Moon, Dae Jun
Kim, Jung Kyu
Sim, Uk
Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title_full Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title_fullStr Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title_full_unstemmed Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title_short Promoting electrochemical ammonia synthesis by synergized performances of Mo(2)C-Mo(2)N heterostructure
title_sort promoting electrochemical ammonia synthesis by synergized performances of mo(2)c-mo(2)n heterostructure
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9980907/
https://www.ncbi.nlm.nih.gov/pubmed/36874069
http://dx.doi.org/10.3389/fchem.2023.1122150
work_keys_str_mv AT antaeyong promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT surendransubramani promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT jesudasssebastiancyril promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT leehyunjung promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT moondaejun promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT kimjungkyu promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure
AT simuk promotingelectrochemicalammoniasynthesisbysynergizedperformancesofmo2cmo2nheterostructure