Green ammonia synthesis using CeO2/RuO2 nanolayers on vertical graphene catalyst via electrochemical route in alkaline electrolyte

The electrochemical synthesis of ammonia at ambient temperature and pressure has the potential to replace the conventional process for the production of ammonia. However, the low ammonia yield and poor long-term stability of catalysts for the synthesis of ammonia hinders the application of this tech...

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Bibliographic Details
Published in:Nanoscale 2022-01, Vol.14 (4), p.1395-1408
Main Authors: Ju, HyungKuk, Dong Han Seo, Chung, Sunki, Mao, Xin, An, Byeong-Seon, Musameh, Mustafa, Gengenbach, Thomas R, Shon, Hokyong, Du, Aijun, Bendavid, Avi, Kostya (Ken) Ostrikov, Yoon, Hyung Chul, Lee, Jaeyoung, Giddey, Sarbjit
Format: Article
Language:English
Subjects:
Ambient temperature
Ammonia
Catalysts
Cerium oxides
Chemical synthesis
Composite materials
Density functional theory
Electrocatalysts
Electrolytes
Graphene
Low temperature
Magnetron sputtering
Metal foams
Nanoparticles
Performance evaluation
Ruthenium oxide
Stability
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Summary:The electrochemical synthesis of ammonia at ambient temperature and pressure has the potential to replace the conventional process for the production of ammonia. However, the low ammonia yield and poor long-term stability of catalysts for the synthesis of ammonia hinders the application of this technology. Herein, we endeavored to tackle this challenge by synthesizing 3-D vertical graphene (VG) on Ni foam via a one-step, low-temperature plasma process, which offered high conductivity and large surface area. Subsequently, the vertical graphene on Ni foam was loaded with nanolayers of ruthenium oxide (RuO2, ∼2 nm) and cerium oxide (CeO2,
ISSN:2040-3364
2040-3372
DOI:10.1039/d1nr06411h