@article {48313,
	title = {Nitric acid free cyclohexane to adipic acid production using nickel and vanadium incorporated AlPO-5 molecular sieve},
	journal = {Molecular Catalysis},
	volume = {540},
	year = {2023},
	month = {APR },
	pages = {113051},
	type = {Article},
	abstract = {<p>
	Rationally designing a stable and sustainable metal oxide supported over the molecular sieve catalysts for oxidizing cyclohexane (CYH) to adipic acid (AA) is vital in industrial applications. The in-situ hydrothermal synthesis method successfully incorporated vanadium and nickel into the aluminium phosphate-5 (AlPO-5) molecular sieves (MFI structure). The XPS and NH3 TPD analysis disclosed that the addition of Ni into V-AlPO-5 stabilizes the ratio of V4+/V5+, creating strong acidic sites and the formation of NiOOH, which are a vital role for the selective CYH oxidation to AA. An in-situ DRIFT study reveals that nickel takes part in the formation of dicarboxylate ions as an intermediate to form AA. Our catalytic studies profoundly suggested that the Ni0.1V0.2AlPO-5 catalyst used for CYH oxidation gives better selectivity towards AA (53\%) in the presence of oxygen at an appropriate amount of solvent without an initiator or promoter within a short time (3h).</p>
},
	keywords = {Adipic Acid, Cyclohexane oxidation, In situ DRIFT, NiOOH, NiVAlPO-5, Ratios ofV4+, V5+},
	issn = {2468-8231},
	doi = {10.1016/j.mcat.2023.113051},
	author = {Prabu, Marimuthu and Sharma, Shweta and Raja, Abhishekram and Archana, Ramakrishnan and Samruddhi, Mane and Raja, Thirumalaiswamy}
}
