{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T07:19:35Z","timestamp":1787642375885,"version":"build-2736575974"},"reference-count":42,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T00:00:00Z","timestamp":1787529600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T00:00:00Z","timestamp":1787529600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Conventional photocatalytic hydrogen evolution systems face the challenge of solar intermittency, which limits their all\u2010day operation. Additionally, bulk sodium poly(heptazine imide) (PHI\u2010Na) suffers from intrinsic drawbacks, including low crystallinity, severe charge carrier recombination, and poor photoelectron storage capacity. To overcome these limitations, we develop an in\u2010plane highly ordered PHI\u2010Na\u2010Mp photocatalyst through a synergistic strategy of surface\u2010confined polymerization and in\u2010situ benzene grafting. Benzene modification significantly enhances the\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010conjugation, and visible\u2010light absorption of PHI\u2010Na. The optimized catalyst exhibits outstanding performance with a visible\u2010light hydrogen evolution rate of 31.2 mmol\u00b7g\n                    <jats:sup>\u22121<\/jats:sup>\n                    (52 times higher than pristine g\u2010C\n                    <jats:sub>3<\/jats:sub>\n                    N\n                    <jats:sub>4<\/jats:sub>\n                    ), an apparent quantum efficiency of 38.8% at 420\u00a0nm, a substantial dark\u2010state hydrogen release of 690.8 \u00b5mol\u00b7g\n                    <jats:sup>\u22121<\/jats:sup>\n                    , and excellent cycling stability. Mechanistic studies reveal that the benzene moieties and the highly ordered structure synergistically suppress charge carrier recombination. Meanwhile, the heptazine units serve as electron reservoirs, enabling reversible photoelectron storage and release. This unique functionality allows continuous hydrogen production even in the absence of light, achieving dark\u2010state photocatalytic operation. Our work provides experimental and theoretical support for designing efficient all\u2010day photocatalytic hydrogen evolution systems.\n                  <\/jats:p>","DOI":"10.1002\/smll.75450","type":"journal-article","created":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T06:34:08Z","timestamp":1787639648000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Benzene\u2010Functionalized In\u2010Plane Ordered Sodium Poly(Heptazine Imide) With Improved Electron Storage Capacity for Efficient Dark\u2010State Photocatalytic Hydrogen Evolution"],"prefix":"10.1002","author":[{"given":"Yujie","family":"Liang","sequence":"first","affiliation":[{"name":"Precision Medicine Laboratory for Chronic Non\u2010Communicable Diseases of Shandong Province Institute of Precision Medicine Jining Medical University  Jining People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8390-6796","authenticated-orcid":false,"given":"Lei","family":"Zeng","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering and Pharmacy Hubei Key Lab of Novel Reactor &amp; Green Chemical Technology Key Laboratory of Green Chemical Engineering Process of Ministry of Education East Lake New Technology Development Zone Wuhan Institute of Technology  Wuhan People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yabin","family":"Jiang","sequence":"additional","affiliation":[{"name":"Precision Medicine Laboratory for Chronic Non\u2010Communicable Diseases of Shandong Province Institute of Precision Medicine Jining Medical University  Jining People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,24]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2023.123475"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1039\/D1SC06785K"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2025.125991"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/D1TA10091B"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.chempr.2023.03.001"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201608553"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202205542"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202314213"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.energyfuels.3c02432"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201700555"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/idm2.12159"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.seppur.2024.126537"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202516479"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010023\u201043328\u20106"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202311803"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.3866\/PKU.WHXB202212062"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2026.218260"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202101466"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.2c05661"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202515457"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12274\u2010024\u20106837\u20105"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/sstr.202500706"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2024.124200"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cclet.2025.111621"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemmater.9b02199"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11426\u2010024\u20102076\u20103"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1002\/aenm.202003016"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0CC08345C"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201502843"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5PY00745C"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.6c02423"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2019.117867"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2025.169032"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201811938"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1002\/cssc.201901239"},{"key":"e_1_2_7_37_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1872\u20102067(23)64448\u20101"},{"key":"e_1_2_7_38_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcat.2020.11.021"},{"key":"e_1_2_7_39_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apsusc.2021.151837"},{"key":"e_1_2_7_40_1","doi-asserted-by":"publisher","DOI":"10.1039\/C9TA09500D"},{"key":"e_1_2_7_41_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssuschemeng.3c06962"},{"key":"e_1_2_7_42_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nanoen.2021.106168"},{"key":"e_1_2_7_43_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.checat.2026.101655"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.75450","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.75450","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.75450","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T06:34:09Z","timestamp":1787639649000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.75450"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,24]]},"references-count":42,"alternative-id":["10.1002\/smll.75450"],"URL":"https:\/\/doi.org\/10.1002\/smll.75450","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"publi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