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Original Research
Published 29 July 2026
Sustainable synthesis of La 0. 8 Sr 0. 2 Co 0. 9 Fe 0. 1 O 3 -δ catalyst using hibiscus flower extract and its performance evaluation for automotive HC and CO exhaust emission control
Kuldip Patel · Dattatraya Subhedar · Femina Patel
Frontiers in Chemical Engineering
doi 10.3389/fceng.2026.1907198