{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T03:59:34Z","timestamp":1794283174511,"version":"4.9.0"},"reference-count":62,"publisher":"Wiley","issue":"54","license":[{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21771032"],"award-info":[{"award-number":["21771032"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Metal\u2010organic frameworks (MOFs), a class of porous crystalline materials with tunable coordination structures, offer unique opportunities for CO\n                    <jats:sub>2<\/jats:sub>\n                    photoreduction; however, their application in piezo\u2010photocatalysis remains limited by poor visible\u2010light absorption, high structural symmetry, and low polarity. Herein, we report a CN\u2010grafting strategy that anchors carbon\u2013nitrogen (CN) species onto coordination\u2010unsaturated Ni sites of Ni\u2010BDC, constructing NiM\u2010CN with a grafting\u2010induced internal electric field (IEF). This modification enhances the structural asymmetry and polarity, thereby strengthening piezoelectric polarization and generating a polarization\u2010induced electric field (PEF) under mechanical stimulation conditions, as demonstrated by the increased piezoelectric coefficient (d\n                    <jats:sub>33<\/jats:sub>\n                    , from 42.41 to 82.16\u00a0pm\u00a0V\n                    <jats:sup>\u22121<\/jats:sup>\n                    compared to the reference sample). Meanwhile, CN grafting narrows the band gap and strengthens the IEF in NiM\u2010CN through Ni 3d\u2013N 2p orbital hybridization and asymmetric charge redistribution. The synergistic effect of IEF and PEF accelerates charge separation and transfer, leading to enhanced surface charge accumulation, as confirmed by in situ Kelvin probe force microscopy (KPFM). Consequently, NiM\u2010CN achieves a remarkable CO production rate of 3406.36\u00a0\u00b5mol\u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    \u00a0h\n                    <jats:sup>\u22121<\/jats:sup>\n                    under piezo\u2010photocatalytic conditions. This work establishes grafting\u2010induced IEF engineering as an effective strategy for constructing coupled electric\u2010field systems in MOFs for efficient piezo\u2010photocatalysts.\n                  <\/jats:p>","DOI":"10.1002\/smll.74874","type":"journal-article","created":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T07:26:44Z","timestamp":1785137204000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Grafting\u2010Induced Dual Electric Fields in Metal\u2013Organic Frameworks for Efficient Piezo\u2010Photocatalytic CO\n                    <sub>2<\/sub>\n                    Reduction"],"prefix":"10.1002","volume":"22","author":[{"given":"Jingce","family":"Bi","sequence":"first","affiliation":[{"name":"Department of Chemistry College of Science Northeastern University  Shenyang People's Republic of 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