HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Research Institute for Electronic Science >
Peer-reviewed Journal Articles, etc >

Ammonia photosynthesis via an association pathway using a plasmonic photoanode and a zirconium cathode

Files in This Item:
Manuscript_190701forHUSCUP.pdf431.65 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Ammonia photosynthesis via an association pathway using a plasmonic photoanode and a zirconium cathode
Authors: Oshikiri, Tomoya Browse this author →KAKEN DB
Ueno, Kosei Browse this author →KAKEN DB
Misawa, Hiroaki Browse this author →KAKEN DB
Issue Date: 21-Aug-2019
Publisher: Royal Society of Chemistry
Journal Title: Green chemistry
Volume: 21
Issue: 16
Start Page: 4443
End Page: 4448
Publisher DOI: 10.1039/c9gc01658a
Abstract: Most conventional photoelectrochemical-based methods for synthesizing NH3 show low selectivity due to the generation of H-2 as a by-product. In principle, two types of reaction mechanisms can occur in the reduction of N-2 to NH3. One is an associative pathway in which N-2 molecules on the catalyst are hydrogenated. The other is a dissociative pathway in which nitrogen and hydrogen react after the cleavage of the strong N-2 triple bond. Understanding the mechanism of NH3 formation on the electrode will facilitate the development of selective and efficient NH3 synthesis techniques. In this study, we constructed a two-electrode system composed of a strontium titanate photocatalytic anode in which the plasmon effect is expressed by plasmonic gold nanoparticles and a zirconium cathode, which was connected to the external circuit to investigate the reaction by electrochemical analysis in addition to analysis of the product. The bias and pH dependences of the reaction were then systematically investigated, and the plasmon-induced synthesis of NH3 on Zr was proposed to proceed via an associative pathway.
Type: article (author version)
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 押切 友也

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University