{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T18:28:14Z","timestamp":1787164094468,"version":"build-2736575974"},"reference-count":63,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"34","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22121004, 22250008, and 22402035"],"award-info":[{"award-number":["22121004, 22250008, and 22402035"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["4918-14380002"],"award-info":[{"award-number":["4918-14380002"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Haihe Laboratory of Sustainable Chemical Transformations","award":["BP0618007"],"award-info":[{"award-number":["BP0618007"]}]},{"name":"The New Cornerstone Science Foundation"}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2026,8,21]]},"abstract":"<jats:p>\n                    Direct hydrogenation of carbon dioxide (CO\n                    <jats:sub>2<\/jats:sub>\n                    ) to acetic acid, a key commodity chemical, offers a sustainable route to valorize greenhouse gases but is plagued by CO\n                    <jats:sub>2<\/jats:sub>\n                    inertness, thermodynamic barriers, and poor selectivity for C-C coupling over competing overhydrogenation. This paper describes the design and synthesis of ultrathin cobalt(II) oxide nanosheets (&lt;4 nm thick) that achieve direct one-step CO\n                    <jats:sub>2<\/jats:sub>\n                    hydrogenation to acetic acid with over 90% selectivity, minimal C\n                    <jats:sub>1<\/jats:sub>\n                    by-products and the highest reported yield under mild conditions, surpassing traditional multistep routes (such as CO\n                    <jats:sub>2<\/jats:sub>\n                    to CO\/methanol followed by carbonylation) in cost, efficiency, and atom economy. These two-dimensional structures feature extended terraces that undergo in situ reconstruction in CO\n                    <jats:sub>2<\/jats:sub>\n                    \/H\n                    <jats:sub>2<\/jats:sub>\n                    mixtures to a cobalt(II) carbonate hydroxide\u2013like phase, stabilizing Co\n                    <jats:sup>2+<\/jats:sup>\n                    and generating abundant hydroxyl groups to optimize CO\n                    <jats:sub>2<\/jats:sub>\n                    activation and selective C\u2013C coupling while suppressing over-reduction. In situ characterizations, including electron energy-loss near-edge structure, spatially resolved infrared spectroscopy, and kinetic\/isotopic analyses, reveal the reconstructed phase\u2019s role in modulating electron density for superior yields and confirm a formate-coupling mechanism unattainable with conventional catalysts. This study introduces a paradigm for CO\n                    <jats:sub>2<\/jats:sub>\n                    upgrading: harnessing dynamic surface reconstructions and nanoscale morphology to access elusive multicarbon pathways, with implications for sustainable chemical synthesis.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.aeg1076","type":"journal-article","created":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T17:59:26Z","timestamp":1787162366000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["Ultrathin CoO nanosheets enable direct CO\n                    <sub>2<\/sub>\n                    hydrogenation to acetic acid"],"prefix":"10.1126","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6857-5298","authenticated-orcid":true,"given":"Chengsheng","family":"Yang","sequence":"first","affiliation":[{"name":"School of Chemical Engineering &amp; Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Collaborative Innovation Center for Chemical Science &amp; Engineering, Tianjin 300350, P. R. China."},{"name":"School of Sustainable Energy and Resources, Nanjing University, Suzhou 215163, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4849-9771","authenticated-orcid":true,"given":"Bo","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering &amp; Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Collaborative Innovation Center for Chemical Science &amp; Engineering, Tianjin 300350, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huimin","family":"Xu","sequence":"additional","affiliation":[{"name":"Advanced Institute for Future Energy, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-2094-1639","authenticated-orcid":true,"given":"Doudou","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Sustainable Energy and Resources, Nanjing University, Suzhou 215163, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-6144-2982","authenticated-orcid":true,"given":"Xiwen","family":"Song","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering &amp; Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Collaborative Innovation Center for Chemical Science &amp; Engineering, Tianjin 300350, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-9532-9527","authenticated-orcid":true,"given":"Ziang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Sustainable Energy and Resources, Nanjing University, Suzhou 215163, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8965-5051","authenticated-orcid":true,"given":"Yifeng","family":"Zhu","sequence":"additional","affiliation":[{"name":"Advanced Institute for Future Energy, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6126-8081","authenticated-orcid":true,"given":"Sai","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering &amp; Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Collaborative Innovation Center for Chemical Science &amp; Engineering, Tianjin 300350, P. R. China."},{"name":"International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, P. R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4141-5387","authenticated-orcid":true,"given":"Chunlei","family":"Pei","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering &amp; Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Collaborative Innovation Center for Chemical Science &amp; Engineering, Tianjin 300350, P. R. China."},{"name":"International Joint Laboratory of Low-carbon Chemical Engineering of Ministry of Education, Tianjin 300350, P. R. 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