{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T08:58:39Z","timestamp":1790758719453,"version":"4.1.0"},"reference-count":46,"publisher":"American Chemical Society (ACS)","issue":"38","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["2682025CX064"],"award-info":[{"award-number":["2682025CX064"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22206125"],"award-info":[{"award-number":["22206125"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Hydrogen peroxide photosynthesis from water and oxygen represents a sustainable route toward decentralized chemical manufacturing, yet its efficiency is severely restricted by sluggish water oxidation reaction. Herein, we report an alkaline-triggered keto-form reconstruction strategy in an anthraquinone-based covalent organic framework (TpAQ) to promote H2O2 photosynthesis. Under strongly alkaline conditions (pH = 13), hydroxide ions induce spontaneous enol-to-keto tautomerization, generating a keto-dominant framework with reconstructed electronic structures and interfacial catalytic microenvironments. The resulting keto-form-rich TpAQ exhibits broadened visible-light absorption, positively shifted valence band positions, accelerated charge separation, and substantially enhanced water adsorption and activation capability. Benefiting from the synergistic enhancement of water oxidation and two-electron oxygen reduction kinetics, the optimized photocatalyst achieves an H2O2 production rate of 678 \u03bcM h\u20131 under visible-light irradiation, which is 3.12-fold higher than that under neutral conditions. Isotope-labeling experiments combined with in situ spectroscopy reveal that the promoted water oxidation continuously supplies O2 for subsequent H2O2 generation via a one-step two-electron oxygen reduction pathway. This work establishes tautomeric-state engineering as an effective strategy for regulating charge dynamics and water oxidation kinetics in covalent organic framework photocatalysts toward efficient H2O2 photosynthesis.<\/jats:p>","DOI":"10.1021\/acsami.6c13764","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T15:02:06Z","timestamp":1790002926000},"page":"52475-52483","source":"Crossref","is-referenced-by-count":0,"title":["Tautomeric-State Engineering of Anthraquinone Covalent Organic Frameworks Enables Efficient H2O2 Photosynthesis from Water and Oxygen"],"prefix":"10.1021","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-3486-9476","authenticated-orcid":true,"given":"Xiangcheng","family":"Zhang","sequence":"first","affiliation":[{"name":"Southwest Jiaotong University , , ,","place":["Chengdu, China, 610031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Na","family":"Sun","sequence":"additional","affiliation":[{"name":"Xinqiao Hospital, Army Medical University , , ,","place":["ChongQing, People\u2019s Republic of China, 400037"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shifeng","family":"Luo","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University , , ,","place":["Chengdu, China, 610031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chang","family":"Liu","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University , , ,","place":["Chengdu, China, 610031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wang","family":"Zhu","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University , , ,","place":["Chengdu, China, 610031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6932-4551","authenticated-orcid":true,"given":"Yanlong","family":"Qi","sequence":"additional","affiliation":[{"name":"Southwest Jiaotong University , , ,","place":["Chengdu, China, 610031"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiyao","family":"Hu","sequence":"additional","affiliation":[{"name":"Southwest Petroleum University , , ,","place":["Chengdu, China, 610500"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"issue":"23","key":"2026093001071083500_cit1","doi-asserted-by":"publisher","DOI":"10.1002\/aenm.202400740","article-title":"Engineering 2D photocatalysts for solar hydrogen peroxide production","volume":"14","author":"Yang","year":"2024","journal-title":"Adv. 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