Phosphorene Dominated Integrative Dual-Electric Field Guiding Charge Flow and Active Centers for Vapor-fed Photocatalytic Hydrogen Evolution

Phosphorene Dominated Integrative Dual-Electric Field Guiding Charge Flow and Active Centers for Vapor-fed Photocatalytic Hydrogen Evolution | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Phosphorene Dominated Integrative Dual-Electric Field Guiding Charge Flow and Active Centers for Vapor-fed Photocatalytic Hydrogen Evolution Xin Wang, Xi Wu, Jingang Song, Jinying Zhang, Hai-Yan Su, Tianyi Ma, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8038675/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Manipulating the oriented electron flow and tailored reaction microenvironments in radial-unguided 2D phosphorene remains challenging. Herein, Rh-decorated 2D/2D violet/black phosphorus (VP/BP-Rh) is engineered using integrative dual-electric fields (DEF) generated through cooperative phase electric field (PEF) and fringing electric field (FEF) to guide oriented charge flow and accurate catalytic centers. While the DEF establishes a powerful intrinsic charge driving force and edge charge ordering, its full potential is optimally unleashed in a vapor-fed gas–solid system. This unique system minimizes interfacial diffusion barriers and solvent shielding effects, allowing the DEF to steer photoelectrons and synergize with H₂O molecules exclusively and efficiently at the edge-located Rh active centers. Experimental and theoretical analyses reveal that the integrative DEF not only strengthens polarization but also ingeniously overcomes the water dissociation barrier at the gas-solid interfaces, significantly reducing the Gibbs free energy barrier for the vapor-to-hydrogen conversion. The resulting VP/BP-Rh achieves a record H₂-generation rate of 5218.7 µmol g⁻¹ h⁻¹ under simulated sunlight, marking ca. 2.4-fold improvement over conventional liquid–solid systems. This study highlights the key role of synergy between the integrative DEF and the gas–solid reaction microenvironment in solving the kinetic bottlenecks of 2D phosphorene-based photocatalysts for efficient solar-driven vapor-to-hydrogen conversion. Physical sciences/Chemistry/Catalysis/Heterogeneous catalysis Physical sciences/Chemistry/Catalysis/Photocatalysis Physical sciences/Materials science/Materials for energy and catalysis/Photocatalysis Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupportingInformation2025.11.5.docx Supporting Information Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8038675","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":545117419,"identity":"b435a4ab-a9a1-4c4c-9961-e943e88677f3","order_by":0,"name":"Xin 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