eprintid: 10192479 rev_number: 6 eprint_status: archive userid: 699 dir: disk0/10/19/24/79 datestamp: 2024-05-17 13:08:58 lastmod: 2024-05-17 13:08:58 status_changed: 2024-05-17 13:08:58 type: article metadata_visibility: show sword_depositor: 699 creators_name: Liu, Longxiang creators_name: Kang, Liqun creators_name: Feng, Jianrui creators_name: Hopkinson, David G creators_name: Allen, Christopher S creators_name: Tan, Yeshu creators_name: Gu, Hao creators_name: Mikulska, Iuliia creators_name: Celorrio, Veronica creators_name: Gianolio, Diego creators_name: Wang, Tianlei creators_name: Zhang, Liquan creators_name: Li, Kaiqi creators_name: Zhang, Jichao creators_name: Zhu, Jiexin creators_name: Held, Georg creators_name: Ferrer, Pilar creators_name: Grinter, David creators_name: Callison, June creators_name: Wilding, Martin creators_name: Chen, Sining creators_name: Parkin, Ivan creators_name: He, Guanjie title: Atomically dispersed asymmetric cobalt electrocatalyst for efficient hydrogen peroxide production in neutral media ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F56 keywords: Electrocatalysis, Synthesis and processing note: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. abstract: Electrochemical hydrogen peroxide (H2O2) production (EHPP) via a two-electron oxygen reduction reaction (2e- ORR) provides a promising alternative to replace the energy-intensive anthraquinone process. M-N-C electrocatalysts, which consist of atomically dispersed transition metals and nitrogen-doped carbon, have demonstrated considerable EHPP efficiency. However, their full potential, particularly regarding the correlation between structural configurations and performances in neutral media, remains underexplored. Herein, a series of ultralow metal-loading M-N-C electrocatalysts are synthesized and investigated for the EHPP process in the neutral electrolyte. CoNCB material with the asymmetric Co-C/N/O configuration exhibits the highest EHPP activity and selectivity among various as-prepared M-N-C electrocatalyst, with an outstanding mass activity (6.1 × 105 A gCo-1 at 0.5 V vs. RHE), and a high practical H2O2 production rate (4.72 mol gcatalyst-1 h-1 cm-2). Compared with the popularly recognized square-planar symmetric Co-N4 configuration, the superiority of asymmetric Co-C/N/O configurations is elucidated by X-ray absorption fine structure spectroscopy analysis and computational studies. date: 2024-05-14 date_type: published publisher: Springer Science and Business Media LLC official_url: http://dx.doi.org/10.1038/s41467-024-48209-0 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2276005 doi: 10.1038/s41467-024-48209-0 pii: 10.1038/s41467-024-48209-0 lyricists_name: He, Guanjie lyricists_name: Parkin, Ivan lyricists_id: GJHEX85 lyricists_id: IPPAR53 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner funding_acknowledgements: EP/V027433/3 [RCUK | Engineering and Physical Sciences Research Council (EPSRC)] full_text_status: public publication: Nature Communications volume: 15 number: 1 article_number: 4079 event_location: England citation: Liu, Longxiang; Kang, Liqun; Feng, Jianrui; Hopkinson, David G; Allen, Christopher S; Tan, Yeshu; Gu, Hao; ... He, Guanjie; + view all <#> Liu, Longxiang; Kang, Liqun; Feng, Jianrui; Hopkinson, David G; Allen, Christopher S; Tan, Yeshu; Gu, Hao; Mikulska, Iuliia; Celorrio, Veronica; Gianolio, Diego; Wang, Tianlei; Zhang, Liquan; Li, Kaiqi; Zhang, Jichao; Zhu, Jiexin; Held, Georg; Ferrer, Pilar; Grinter, David; Callison, June; Wilding, Martin; Chen, Sining; Parkin, Ivan; He, Guanjie; - view fewer <#> (2024) Atomically dispersed asymmetric cobalt electrocatalyst for efficient hydrogen peroxide production in neutral media. Nature Communications , 15 (1) , Article 4079. 10.1038/s41467-024-48209-0 <https://doi.org/10.1038/s41467-024-48209-0>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10192479/1/s41467-024-48209-0.pdf