Related Experiment Video
Updated: Aug 6, 2026
11:49
A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
Published on: April 10, 2019
Coverage engineering by shell-number-controlled nanoconfinement enables nitric oxide electroreduction in the ppm
Shanyuhan Jin1,2, Daliang Xu3, Peiwen Xu1,2
1State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, China.
Nature Communications
|July 21, 2026
Summary
Nanoconfinement in hollow copper oxide nanoreactors boosts electrochemical nitric oxide reduction (NORR) efficiency. This strategy enhances intermediate enrichment and NO coverage, enabling high performance even with dilute NO feeds.
Area of Science:
- Electrochemistry
- Materials Science
- Nanotechnology
Background:
- Electrochemical nitric oxide reduction (NORR) is crucial but limited by low NO coverage and intermediate loss in dilute feeds.
- Developing strategies to enhance interfacial NO concentration and stabilize reactive intermediates is essential for efficient NORR.
Purpose of the Study:
- To introduce quantifiable nanoconfinement as a strategy to regulate interfacial coverage for NORR in dilute conditions.
- To investigate the effect of nanoconfinement depth on NORR performance and reaction kinetics.
Main Methods:
- Fabrication of hollow multishelled Cu2O nanoreactors with varying shell numbers to control confinement.
- Electrochemical evaluation of NORR performance using dilute NO feeds (ppm regime).
- Finite-element simulations and density functional theory calculations to elucidate reaction mechanisms and coverage effects.
Main Results:
- The three-shell Cu2O nanoreactor achieved 97.9% Faradaic efficiency and 97.3% NO conversion under 1000 ppm NO feed.
- Multishell confinement significantly amplified intermediate (*H, *NH) and NO coverage compared to single-shell structures.
- Nanoconfinement reshaped the NORR kinetic landscape, optimizing intermediate activation and product release.
Conclusions:
- Quantifiable nanoconfinement is an effective strategy for coverage engineering in electrocatalysis.
- Hollow multishelled nanoreactors enable efficient NORR under industrially relevant dilute NO feeds.
- This approach provides a pathway for enhancing catalytic performance by controlling interfacial reaction environments.
