Fig. 6: FAL ammoxidation mechanism. | Nature Communications

Fig. 6: FAL ammoxidation mechanism.

From: Low-coordinated Co-Ru dual-atom enables ambient ammoxidation via unlocking competitive adsorption limitations

Fig. 6

a Control catalysts for FAL ammoxidation. Reaction conditions: FAL (0.2 mmol), scavenger (0.2 mmol), n-butanol (1.5 mL), catalyst (10 mg), 35 °C, 1 bar air, 6 h. b Reaction orders of oxygen pressure and NH3·H2O dosage over CoRu-N-C. c Effect of the radical scavenger on FAL ammoxidation over CoRu-N-C. [p-benzoquinone (PBQ), superoxide radicals (O2−•) scavenger; AgNO3, photo-generated electrons (e−) scavenger; KI, photo-generated holes (h+) scavenger; and isopropanol (IPA), hydroxyl radicals (*OH) scavenger]. EPR spectra of radical adducts signal labeled by d DMPO for superoxide radicals (O2−•) in presence of Co-N-C and CoRu-N-C. e Reaction orders of oxygen pressure over Co-N-C and CoRu-N-C. f In-situ CO oxidation over Co-N-C and CoRu-N-C.

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