eprintid: 10205809
rev_number: 9
eprint_status: archive
userid: 699
dir: disk0/10/20/58/09
datestamp: 2025-03-10 14:55:00
lastmod: 2025-03-10 14:55:00
status_changed: 2025-03-10 14:55:00
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Li, Xin
creators_name: Hai, Guangtong
creators_name: Wan, Daniel HC
creators_name: Liao, Yiwen
creators_name: Yao, Zhangyi
creators_name: Zhao, Fenglin
creators_name: Huang, Lingzhi
creators_name: Zhou, Jinsong
creators_name: Li, Gang
creators_name: Chen, Gao-Feng
creators_name: Wang, Feng Ryan
creators_name: Leung, Michael KH
creators_name: Wang, Haihui
title: Favoring the Originally Unfavored Oxygen for Enhancing Nitrogen-to-Nitrate Electroconversion
ispublished: inpress
divisions: UCL
divisions: B04
divisions: F43
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Current nitrate production involves a two-step thermochemical process that is energy-intensive and generates substantial CO2 emissions. Sustainable NO3- production via the nitrogen electrooxidation reaction powered by renewable electricity is highly desirable, but the Faradaic efficiency (FE) at high production rates is unsatisfactory due to competition from the oxygen evolution reaction (OER). In this study, we propose reengineering the catalyst's microstructure-to-macroenvironment interface by particularly utilizing the previously considered unfavored oxygen from the OER. We demonstrate that the re-engineered interface facilitates a record-breaking FE of 35.52% under 8 atm air, with an impressive increase in FE (41.56%) observed during a continuous electrochemical process lasting for 60 h due to the in situ formation of the O2-rich macro-interface environment. The revelation is anticipated to furnish groundbreaking perspectives for the reaction systems design in electrochemical nitrate production and other electrocatalytic fields.
date: 2025-02-27
date_type: published
publisher: American Chemical Society
official_url: https://doi.org/10.1021/jacs.4c17380
full_text_type: other
language: eng
verified: verified_manual
elements_id: 2365427
doi: 10.1021/jacs.4c17380
lyricists_name: Wang, Feng
lyricists_id: FWANG76
actors_name: Wang, Feng
actors_id: FWANG76
actors_role: owner
full_text_status: restricted
publication: Journal of the American Chemical Society
event_location: United States
issn: 0002-7863
citation:        Li, Xin;    Hai, Guangtong;    Wan, Daniel HC;    Liao, Yiwen;    Yao, Zhangyi;    Zhao, Fenglin;    Huang, Lingzhi;                         ... Wang, Haihui; + view all <#>        Li, Xin;  Hai, Guangtong;  Wan, Daniel HC;  Liao, Yiwen;  Yao, Zhangyi;  Zhao, Fenglin;  Huang, Lingzhi;  Zhou, Jinsong;  Li, Gang;  Chen, Gao-Feng;  Wang, Feng Ryan;  Leung, Michael KH;  Wang, Haihui;   - view fewer <#>    (2025)    Favoring the Originally Unfavored Oxygen for Enhancing Nitrogen-to-Nitrate Electroconversion.                   Journal of the American Chemical Society        10.1021/jacs.4c17380 <https://doi.org/10.1021/jacs.4c17380>.    (In press).   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10205809/1/Wang_Revised_manuscript.pdf