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Perovskites offer compositional flexibility, tunable band structures, redox\u2010active B\u2010site cations, controllable defect chemistry, and a propensity for exsolution and surface reconstruction under operating conditions. This review critically synthesizes perovskite\u2010based CO\n                    <jats:sub>2<\/jats:sub>\n                    conversion across halide and lead\u2010free halide perovskites; Cu\u2010 and Fe\u2010substituted systems; oxynitrides and oxyfluorides; and thermochemical, chemical\u2010looping, solid oxide electrolysis, and methanation oxides. Using an evidence hierarchy that prioritizes\n                    <jats:sup>13<\/jats:sup>\n                    CO\n                    <jats:sub>2<\/jats:sub>\n                    isotope labeling, operando spectroscopy, local structure probes, and postreaction characterization, the analysis distinguishes established active\u2010site claims from activity correlations, identifies systems whose working catalyst is a reconstructed phase rather than the as\u2010synthesized perovskite, and outlines the standards needed for mechanism\u2010guided catalyst design.\n                  <\/jats:p>","DOI":"10.1002\/tcr.70247","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T07:17:01Z","timestamp":1788938221000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Perovskites for CO\n                    <sub>2<\/sub>\n                    Conversion: Active\u2010Phase Identity, Reconstruction, and the Evidence Behind Mechanistic Claims"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4965-741X","authenticated-orcid":false,"given":"Darpan","family":"Bhuse","sequence":"first","affiliation":[{"name":"Department of Chemistry School of Basic and Applied Sciences Faculty of Science and Technology JSPM University  Pune Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ankush","family":"Thate","sequence":"additional","affiliation":[{"name":"Loknete Prof. Sharad Patil Mahavidyalaya Miraj  Sangli Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-3925-5479","authenticated-orcid":false,"given":"Shubham","family":"Deshmukh","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Basic and Applied Sciences Faculty of Science and Technology JSPM University  Pune Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7521-405X","authenticated-orcid":false,"given":"Suresh","family":"Selvaraj","sequence":"additional","affiliation":[{"name":"Kallam Haranadhareddy Institute of Technology  Guntur Andhra Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6520-6454","authenticated-orcid":false,"given":"Ganesh","family":"Agawane","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Basic and Applied Sciences Faculty of Science and Technology JSPM University  Pune Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chandan","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Chemistry School of Basic and Applied Sciences Faculty of Science and Technology JSPM University  Pune Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suraj","family":"Jadhav","sequence":"additional","affiliation":[{"name":"Department of Biotechnology School of Basic and Applied Sciences JSPM University  Pune Maharashtra India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,9]]},"reference":[{"key":"e_1_2_14_2_1","doi-asserted-by":"publisher","DOI":"10.5194\/essd\u201018\u20103211\u20102026"},{"key":"e_1_2_14_3_1","first-page":"184","volume-title":"IPCC, 2023: Climate Change 2023: Synthesis Report. 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