Feng, YufaTian, JingjingShao, YouxiangDyosiba, Xoliswa LindokuhleRen, JianweiXiong, JiagengGao, QingshengLi, Hao2026-02-032026-02Feng, Y., Tian, J., Shao, Y. et al. 2026, 'Synergistic VO and VN dual vacancies in homometallic Co3O4/CoN heterojunction boosting built-in electric field for efficient hydrogen production', Chemical Engineering Journal, vol. 529, art. 172454, pp. 1-11, doi : 10.1016/j.cej.2025.172454.1385-8947 (print)1873-3212 (online)10.1016/j.cej.2025.172454http://hdl.handle.net/2263/107787DATA AVAILABILITY : Data will be made available on request.Please read abstract in the article.en© 2026 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. Notice : this is the author’s version of a work that was accepted for publication in Chemical Engineering Journal . Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Chemical Engineering Journal, vol. 529, art. 172454, pp. 1-11, doi : 10.1016/j.cej.2025.172454.Hydrogen productionCatalysisHomometallic heterojunctionPostprint Article