Efficient ammonia synthesis via electrocatalytic nitrate reduction over a [8 + 2]-connected three-dimensional metal-bipyridine covalent organic framework

Tsukasa Irie; Ayumu Kondo; Kai Sun; Kohki Sasaki; Mika Nozaki; Shiho Tomihari; Kotaro Sato; Tokuhisa Kawawaki; Yu Zhao; Saikat Das; Yuichi Negishi

doi:10.1039/d5ta07989f

January 1, 2026Journal of Materials Chemistry AOpen Access

Efficient ammonia synthesis via electrocatalytic nitrate reduction over a [8 + 2]-connected three-dimensional metal-bipyridine covalent organic framework

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Key Points

This research aims to explore the potential of a metal-bipyridine covalent organic framework for efficient ammonia synthesis.
Synthesis of a 3D bcu COF structure (TU-82)
Post-synthetic metalation to create TU-82-M with Fe and Cu
Evaluation of electrocatalytic nitrate reduction performance
Outstanding selectivity achieved via atomically dispersed Fe sites
Comparison with TU-82-Cu shows enhanced activity for TU-82-Fe

Abstract

TU-82, a 3D [8 + 2]-connected bcu COF, was post-synthetically metalated to yield TU-82-M ( M = Fe, Cu). TU-82-Fe shows outstanding activity and selectivity for electrocatalytic nitrate (NO 3 − ) reduction to ammonia via atomically dispersed Fe sites.

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Cite This Study

Irie et al. (2026) studied this question.

synapsesocial.com/papers/698433baf1d9ada3c1fb10e8 https://doi.org/10.1039/d5ta07989f

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Efficient ammonia synthesis via electrocatalytic nitrate reduction over a [8 + 2]-connected three-dimensional metal-bipyridine covalent organic framework

Key Points

Abstract

Discussion

Cite This Study

Efficient ammonia synthesis via electrocatalytic nitrate reduction over a [8 + 2]-connected three-dimensional metal-bipyridine covalent organic framework

Key Points

Abstract

Discussion

Cite This Study

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