01473nas a2200229   4500008004100000022001400041245009200055210006900147260000800216300001100224490000800235520069800243100001900941700002000960700002500980700001901005700002201024700002601046700002101072700002601093856012401119       2022                        eng d  a1566-736700aMicrowave-assisted selective N-alkylation of aniline over molybdenum supported catalyst0 aMicrowaveassisted selective Nalkylation of aniline over molybden  cAUG  a1064640 v1683 a<p>
	Selective N-alkylation of aniline is a tough and challenging reaction due to over alkylation, therefore, catalyst with specific characteristics is needed to accomplish such transformations. In this work, a series of catalysts with molybdenum supported on alumina are prepared and subjected to various reaction conditions, out of which 30 PMA (Phosphomolybdic acid) showed the best result due to its proper combination of acidic sites. This reaction is sustainable and environmentally friendly as it is carried out with methanol as an alkylating source in the presence of microwave radiation at low temperature. The reaction data was compared with various other reactor systems too.</p>
1 aBhatkar, Akash1 aMane, Samruddhi1 aMekala, Siva, Prasad1 aGogoi, Pranjal1 aMohapatra, Gourab1 aRamakrishnan, Archana1 aMarimuthu, Prabu1 aThirumalaiswamy, Raja  uhttps://library.ncl.res.in/content/microwave-assisted-selective-n-alkylation-aniline-over-molybdenum-supported-catalyst02324nas a2200217   4500008004100000022001400041245011700055210006900172260000800241490000700249520155600256653001701812653001301829653002301842653001801865653002501883100002101908700002601929700002301955856012801978       2025                        eng d  a1867-388000aHydrodeoxygenation of guaiacol to cyclohexanol using noble metal-supported Ni-based perovskite-derived catalysts0 aHydrodeoxygenation of guaiacol to cyclohexanol using noble metal  cAUG0 v173 a<p>
	This study focuses on the role of noble metal-doped Ni-based perovskites, specifically LaNiO3 and NiTiO3 catalysts in the hydrodeoxygenation (HDO) of guaiacol. The findings demonstrate that reduced Ru-LaNiO3 catalyst achieved superior performance with 100% guaiacol conversion and a 75% selectivity toward cyclohexanol, compared to reduced Ru-NiTiO3, which achieved only 43% conversion and 25% cyclohexanol selectivity under identical conditions (240 degrees C, 30 bar H2, and 4 h). High-resolution transmission electron microscopic (HR-TEM) analysis reveals that LaNiO3-supported catalysts exhibit better metal dispersion and smaller nickel nanoparticle sizes compared to NiTiO3-supported counterparts. X-ray photoelectron spectroscopy (XPS) analysis shows that the reduction of nickel and noble metals is more facile on LaNiO3. Additionally, the O 1s XPS profile for reduced Ru-LaNiO3 indicates a higher proportion of lattice oxygen (OLat similar to 79%) and a lower proportion of oxygen vacancies (OVac similar to 21%) compared to other catalyst systems. The optimized OLat/OVac ratio is shown to be critical for the effective HDO of guaiacol. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) demonstrates a high HDO reaction rate using reduced Ru-LaNiO3 than reduced Ru-NiTiO3, with cyclohexanol formation attributed to the keto-enol tautomerization pathway. Overall, this study underscores the critical roles of oxygen vacancies, metal dispersion, and metal-metal oxide interactions in the HDO of guaiacol.</p>
10aCyclohexanol10aGuaiacol10aHydrodeoxygenation10aIn-situ DRIFT10aNi-based perovskites1 aMarimuthu, Prabu1 aRaja, Thirumalaiswamy1 aVinu, Ravikrishnan  uhttps://library.ncl.res.in/content/hydrodeoxygenation-guaiacol-cyclohexanol-using-noble-metal-supported-ni-based-perovskite